Benchmarks in production applications

[pablogsal]

After some talk with @gvanrossum we discuss the possibility of gathering benchmarks from big production-grade applications. I talked with my employer (Bloomberg) and we have a couple of very large, performance-critical Python applications we could use as a performance target (as another source of data). I discussed the possibility of getting some engineer hours from the teams in charge of these applications for helping to build some kind of automated system that allows running some benchmark based on production data with different versions of CPython (so we can compare different commits in the main branch or for different proposals).

I open this issue to gather first what kind of "requirements" or data are we interested in so we can talk internally on how to prepare and build this. For instance, are we just looking at "time it takes per request" or "time per opcode" or something like that.

As a note, the code of the application itself cannot be made public for obvious reasons but (after checking with the legal department) we can possibly discuss the general nature of the applications if there are questions.

[gvanrossum]

This is great! @markshannon will write something about the kinds of numbers we'd like to see.

[markshannon]

I think there are a few things that would be useful.

• Whatever metric actually matters for this application; request per second, or whatever. So that we can say "makes real world application faster by ..."
• A perf breakdown of where the application spends its time
• The printout with specialization stats turned on

[pablogsal]

@markshannon For the perf breakdown you means something like % of every opcode?

[gvanrossum]

Here's a progress report from @pablogsal:

• I talked with legal and other related departments and this aspect is already sorted out. We are still pending a talk with CTO, but I don't expect anything relevant from them.

• We already have identified parts of the application that are big enough and critical enough to provide good benchmark candidates.

• Currently we are working on what's going to be the most annoying part: there are many dependencies of this application that don't work on the current main branch due to the following:

• Lack of wheels for 3.11.
• Cython not working for 3.11.
• Changes to the C-API

Also, there are some internal dependencies in Bloomberg packages that we need to ensure that also work on main.

We are currently investigating what's the best way to obtain something that we can benchmark without having to fix all of these or if we can substitute those dependencies for other pure python ones

• When this is sorted, we want to make an investigation into the stability of the benchmarks to ensure we are not going to have lot of noise. The application is big enough that although there is no big I/O on the middle, is not trivial to know how stable the benchmarks are.

• Once all this is sorted, we will hook this up to pyperformance for easy testing of new versions.

As you can see, we are progressing, but the biggest pain is going to be figuring out that this works for 3.11, which is a bit of packaging hell, but I think we will get there.

[markshannon]

@markshannon For the perf breakdown you means something like % of every opcode?

No. Just the usual perf output: %time in each C function, etc.

[domik82]

Hi,

I spotted this project and I have a thought - it was said that there is a need for a "production" like application.
I wonder - maybe it would be worth also using https://github.com/locustio/locust framework as a reference point.

This is quite a popular framework for doing performance tests - an alternative for JMeter / Gatling / k6.

It has master/worker concept and uses requests/urllib3 | gevents | ZMQ. So I guess "normal" usage of the basic libs. Apart from that there would be some "basic" code usage of lists etc.

People might add their own code on top of it - like here is a bunch of plugins - https://github.com/SvenskaSpel/locust-plugins
My team has own code to send stats to InfluxDB or process data on websockets.

I guess any optimization in the usage of libraries underneath like requests/SSL will bring gains that would be visible as the possibility to generate more Virtual Users per worker/CPU. Normally when too many Virtual Users are generated on a single CPU - it will get exhausted and the context switch will affect response time giving unrealistic values. This is the point when more workers have to be added to the pool.

This could work hand in hand with some very basic Flask application that would just serve as a testing point and return " hello world" - although you could embed some "real code" underneath to have a more realistic scenario of application usage. I can imagine it could save/get data using Mongo or call simple SQL with some other DB. The logs would interact with disk giving you and I/O stats.

Depending on the scenario you could observe - CPU usage on Locust side - with same load and optimization usage should drop. At the same time optimization on the server side will give probably a slightly higher RPS and/or faster response time to the user - it is also possible that CPU usage will change.

I'm not sure how memory allocation would change - I guess driver will be the number of concurrent sessions.

I'm not sure if this is something that you are looking for.

[gvanrossum]

It looks like Locust is mainly intended for app developers to be able to create flexible testing scenarios for their web apps (I presume by creating synthetic loads). That's not exactly what we're looking for here -- we're looking for apps that are already developed for which we can measure their performance under a load already defined. So if you have a particular app that you don't mind sharing and you have developed a Locust-based synthetic load for it, we would love to be able to compare how your app performs under Python 3.10 and 3.11. But if you have some other way of stress-testing your app we would be just as happy -- as long as your app can run under 3.10 and 3.11 (or, hopefully, what's in main, but I don't want to press my luck :-).

[utkarshgupta137]

It looks like Locust is mainly intended for app developers to be able to create flexible testing scenarios for their web apps (I presume by creating synthetic loads). That's not exactly what we're looking for here -- we're looking for apps that are already developed for which we can measure their performance under a load already defined. So if you have a particular app that you don't mind sharing and you have developed a Locust-based synthetic load for it, we would love to be able to compare how your app performs under Python 3.10 and 3.11. But if you have some other way of stress-testing your app we would be just as happy -- as long as your app can run under 3.10 and 3.11 (or, hopefully, what's in main, but I don't want to press my luck :-).

We have a FastAPI microservice (py3.10) in production for which we've developed tests in locust to repeat the requests we get in production.
It uses two redis clusters, queries solr using aiohttp, and finally queries a model on a (different) Tensorflow Serving VM via grpcio. All of these tasks are async & it also has a few list, dict, & NumPy ops. I think I should be able to run it with py3.11 too.
I don't think I can share the code verbatim, but I can perform benchmarks on isolated VMs & share a few critical sections. Would you be interested in benchmarks of such an app?

[gvanrossum]

I would be super interested if you could do those benchmarks! In particular comparing 3.10 and 3.11 in a real world app would be huge. I am prepared to be disappointed, because usually real-world performance is not just about CPU usage of the language the main app is written in... But nevertheless I would love to hear from you.

[utkarshgupta137]

I would be super interested if you could do those benchmarks! In particular comparing 3.10 and 3.11 in a real world app would be huge. I am prepared to be disappointed, because usually real-world performance is not just about CPU usage of the language the main app is written in... But nevertheless I would love to hear from you.

All times are in milliseconds.

Python 3.10.7:
Mean: 33
Median: 23-24 (mostly 23)
90%: 41
95%: 57-62
99%: 200

Python 3.11.0rc2
Mean: 32
Median: 21-22 (mostly 22)
90%: 39
95%: 54-58
99%: 190

Memory usage was almost the same, but CPU usage looked slightly lower. But I can't be more specific without a graph.

Nonetheless, this is an impressive result considering that this service is very database intensive (Around 4-10 redis gets, 1-6 redis sets, 1-5 solr queries, & 1 TF serving call). But it also has a lot of list & dict comprehensions as well as multiple dicts with 700K & 1M elements, which I think is responsible for the performance improvement.

I'll see if I can share the source code by obfuscating some parts. It might be better if I replace the database calls completely with sleep so that you could run it on your side.

[utkarshgupta137]

Fun fact: I had rewritten this service in rust (with actix-web & async for all database calls) & I got 17-18ms median latency with it. I think this makes the 3.11 improvement more impressive if we consider the python overhead compared to rust.

[gvanrossum]

Thanks for the quick results! It sounds like 3-5% faster, which for a real-world app is not easy.

[brandtbucher]

Might be interesting to gather 3.11 stats, if you're comfortable compiling Python from source. This basically dumps tons of internal counters that allow us to see how well the interpreter is handling your program (without giving us access to the source of the program itself).

Basically, configure --with-pystats, build, make an empty /tmp/py_stats directory, run your program, and run Tools/scripts/summarize_stats.py from the main repo using the same Python. It will dump a few thousand lines of markdown to stdout, which you can drop into a comment here. To see what type of information is gathered, see this example.

[utkarshgupta137]

Might be interesting to gather 3.11 stats, if you're comfortable compiling Python from source. This basically dumps tons of internal counters that allow us to see how well the interpreter is handling your program (without giving us access to the source of the program itself).

Basically, configure --with-pystats, build, make an empty /tmp/py_stats directory, run your program, and run Tools/scripts/summarize_stats.py from the main repo using the same Python. It will dump a few thousand lines of markdown to stdout, which you can drop into a comment here. To see what type of information is gathered, see this example.

Sure, I'll try it tomorrow.

[corona10]

Might be interesting to gather 3.11 stats, if you're comfortable compiling Python from source. This basically dumps tons of internal counters that allow us to see how well the interpreter is handling your program (without giving us access to the source of the program itself).

Hmm, I will try to ask my company's (LINE/NAVER) machine-learning team(I can sure that they have enough workload for the APAC area, especially for Korea/Japan) if they can share bytecode execution information.

[utkarshgupta137]

Might be interesting to gather 3.11 stats, if you're comfortable compiling Python from source. This basically dumps tons of internal counters that allow us to see how well the interpreter is handling your program (without giving us access to the source of the program itself).

Basically, configure --with-pystats, build, make an empty /tmp/py_stats directory, run your program, and run Tools/scripts/summarize_stats.py from the main repo using the same Python. It will dump a few thousand lines of markdown to stdout, which you can drop into a comment here. To see what type of information is gathered, see this example.

I built python by modifying this Dockerfile which is used in the official py3.11.0 docker builds. I just added --enable-pystats (--with-pystats doesn't work) to the configure step.

Here is the output after 15k requests:

Execution counts

execution counts for all instructions

Name	Count	Self	Cumulative	Miss ratio
LOAD_FAST	124398671	12.9%	12.9%
LOAD_CONST	58825706	6.1%	19.0%
FOR_ITER	42738132	4.4%	23.4%
STORE_FAST__LOAD_FAST	37837337	3.9%	27.4%
JUMP_BACKWARD_QUICK	35043528	3.6%	31.0%
LOAD_ATTR_INSTANCE_VALUE	34627008	3.6%	34.6%	0.7%
RESUME_QUICK	32247781	3.3%	37.9%
RETURN_VALUE	30371057	3.1%	41.1%
LOAD_METHOD_NO_DICT	30006603	3.1%	44.2%
LOAD_DEREF	25592799	2.7%	46.8%
LOAD_GLOBAL_BUILTIN	24306929	2.5%	49.4%	0.1%
LIST_APPEND	23443018	2.4%	51.8%
POP_JUMP_FORWARD_IF_FALSE	23172104	2.4%	54.2%
STORE_FAST	22286822	2.3%	56.5%
LOAD_GLOBAL_MODULE	17934215	1.9%	58.4%	0.1%
CALL_ADAPTIVE	16601257	1.7%	60.1%
LOAD_FAST__LOAD_FAST	15234421	1.6%	61.7%
PRECALL_ADAPTIVE	14413340	1.5%	63.2%
POP_TOP	14116541	1.5%	64.6%
LOAD_ATTR_ADAPTIVE	13540650	1.4%	66.0%
PRECALL_PYFUNC	13313500	1.4%	67.4%	0.0%
FORMAT_VALUE	12491236	1.3%	68.7%
LOAD_CONST__LOAD_FAST	12259442	1.3%	70.0%
LOAD_FAST__LOAD_CONST	11965153	1.2%	71.2%
CALL_PY_EXACT_ARGS	11645458	1.2%	72.4%	6.2%
CONTAINS_OP	10968145	1.1%	73.6%
STORE_FAST__STORE_FAST	10514008	1.1%	74.6%
PRECALL_NO_KW_METHOD_DESCRIPTOR_NOARGS	10475137	1.1%	75.7%	1.0%
LOAD_ATTR_SLOT	10002245	1.0%	76.8%	0.0%
STORE_ATTR_INSTANCE_VALUE	8794946	0.9%	77.7%	1.1%
PRECALL_NO_KW_METHOD_DESCRIPTOR_FAST	8557324	0.9%	78.6%	0.0%
BINARY_SUBSCR_TUPLE_INT	8192693	0.8%	79.4%	0.0%
POP_JUMP_FORWARD_IF_TRUE	8117474	0.8%	80.3%
LOAD_METHOD_WITH_VALUES	7624762	0.8%	81.1%	1.7%
PRECALL_BUILTIN_CLASS	7486510	0.8%	81.8%	0.0%
POP_JUMP_BACKWARD_IF_FALSE	7411451	0.8%	82.6%
MAP_ADD	6982242	0.7%	83.3%
BINARY_SUBSCR_LIST_INT	6780678	0.7%	84.0%	0.6%
UNPACK_SEQUENCE_TWO_TUPLE	6386218	0.7%	84.7%
BUILD_STRING	6270572	0.7%	85.3%
BINARY_SUBSCR_ADAPTIVE	6225444	0.6%	86.0%
BINARY_SUBSCR_DICT	5994107	0.6%	86.6%
POP_JUMP_FORWARD_IF_NONE	5791340	0.6%	87.2%
PRECALL_NO_KW_METHOD_DESCRIPTOR_O	5694766	0.6%	87.8%	0.5%
LOAD_ATTR_MODULE	5541705	0.6%	88.4%	0.1%
LOAD_METHOD_ADAPTIVE	5441547	0.6%	88.9%
COMPARE_OP_INT_JUMP	4943621	0.5%	89.4%	0.1%
BUILD_TUPLE	4859269	0.5%	89.9%
JUMP_FORWARD	4575390	0.5%	90.4%
SEND	4550709	0.5%	90.9%
POP_JUMP_FORWARD_IF_NOT_NONE	4178917	0.4%	91.3%
PRECALL_NO_KW_ISINSTANCE	4087450	0.4%	91.8%
NOP	4069687	0.4%	92.2%
UNPACK_SEQUENCE_TUPLE	3616438	0.4%	92.5%
KW_NAMES	3588110	0.4%	92.9%
GET_ITER	3436682	0.4%	93.3%
RETURN_GENERATOR	3209050	0.3%	93.6%
BUILD_LIST	2975101	0.3%	93.9%
GET_AWAITABLE	2916251	0.3%	94.2%
PRECALL_NO_KW_LEN	2896589	0.3%	94.5%
IS_OP	2484243	0.3%	94.8%
COMPARE_OP_ADAPTIVE	2402749	0.2%	95.0%
COMPARE_OP_STR_JUMP	2349630	0.2%	95.3%	0.0%
PUSH_NULL	2327249	0.2%	95.5%
PRECALL_NO_KW_LIST_APPEND	1982220	0.2%	95.7%
YIELD_VALUE	1814357	0.2%	95.9%
STORE_SUBSCR_DICT	1688929	0.2%	96.1%
BUILD_SLICE	1594319	0.2%	96.2%
PRECALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS	1589538	0.2%	96.4%	2.1%
JUMP_BACKWARD_NO_INTERRUPT	1572350	0.2%	96.6%
BINARY_OP_ADD_UNICODE	1532062	0.2%	96.7%
PRECALL_BOUND_METHOD	1464733	0.2%	96.9%	2.1%
PRECALL_NO_KW_STR_1	1442764	0.1%	97.0%
COPY	1413756	0.1%	97.2%
JUMP_IF_TRUE_OR_POP	1403632	0.1%	97.3%
BUILD_MAP	1339380	0.1%	97.5%
COPY_FREE_VARS	1305448	0.1%	97.6%
SWAP	1247129	0.1%	97.7%
BINARY_OP_ADD_INT	1145158	0.1%	97.8%	0.0%
MAKE_FUNCTION	1137414	0.1%	98.0%
PRECALL_NO_KW_BUILTIN_FAST	1095732	0.1%	98.1%	0.1%
PRECALL_NO_KW_TYPE_1	1078751	0.1%	98.2%
EXTENDED_ARG_QUICK	1060236	0.1%	98.3%
MAKE_CELL	984318	0.1%	98.4%
STORE_ATTR_SLOT	951212	0.1%	98.5%	0.1%
LOAD_CLOSURE	885027	0.1%	98.6%
PRECALL_NO_KW_BUILTIN_O	876570	0.1%	98.7%	0.4%
LOAD_ATTR_WITH_HINT	841955	0.1%	98.8%	4.4%
BINARY_OP_ADAPTIVE	825894	0.1%	98.9%
STORE_DEREF	816051	0.1%	98.9%
CALL_FUNCTION_EX	768158	0.1%	99.0%
CALL	758307	0.1%	99.1%
STORE_ATTR_ADAPTIVE	647848	0.1%	99.2%
DICT_MERGE	573085	0.1%	99.2%
JUMP_IF_FALSE_OR_POP	557284	0.1%	99.3%
CALL_PY_WITH_DEFAULTS	473871	0.0%	99.3%	0.0%
LOAD_METHOD	424109	0.0%	99.4%
BINARY_OP_SUBTRACT_INT	406681	0.0%	99.4%
PRECALL_BUILTIN_FAST_WITH_KEYWORDS	401785	0.0%	99.5%	5.7%
LOAD_METHOD_CLASS	367676	0.0%	99.5%
LOAD_METHOD_WITH_DICT	339171	0.0%	99.5%	83.8%
LOAD_ATTR	298852	0.0%	99.6%
STORE_SUBSCR_ADAPTIVE	282571	0.0%	99.6%
PRECALL	267302	0.0%	99.6%
PUSH_EXC_INFO	263420	0.0%	99.7%
POP_EXCEPT	263420	0.0%	99.7%
CHECK_EXC_MATCH	262907	0.0%	99.7%
LIST_EXTEND	199406	0.0%	99.7%
LIST_TO_TUPLE	198304	0.0%	99.7%
BEFORE_WITH	187099	0.0%	99.8%
BINARY_OP_SUBTRACT_FLOAT	148605	0.0%	99.8%
BEFORE_ASYNC_WITH	132966	0.0%	99.8%
BUILD_CONST_KEY_MAP	129154	0.0%	99.8%
LOAD_METHOD_MODULE	128850	0.0%	99.8%	0.1%
POP_JUMP_BACKWARD_IF_TRUE	124719	0.0%	99.8%
BINARY_OP_INPLACE_ADD_UNICODE	124108	0.0%	99.8%
STORE_ATTR_WITH_HINT	120821	0.0%	99.9%	2.9%
UNARY_NOT	119857	0.0%	99.9%
BINARY_SUBSCR_GETITEM	114764	0.0%	99.9%	0.0%
STORE_ATTR	109519	0.0%	99.9%
BINARY_OP_MULTIPLY_INT	108744	0.0%	99.9%	0.1%
UNPACK_SEQUENCE_LIST	86052	0.0%	99.9%
PRECALL_NO_KW_TUPLE_1	85095	0.0%	99.9%
RAISE_VARARGS	79841	0.0%	99.9%
BINARY_OP_ADD_FLOAT	74184	0.0%	99.9%
DELETE_SUBSCR	63939	0.0%	99.9%
RERAISE	63601	0.0%	100.0%
LOAD_GLOBAL	55783	0.0%	100.0%
BINARY_SUBSCR	48057	0.0%	100.0%
STORE_NAME	48025	0.0%	100.0%
GET_ANEXT	46566	0.0%	100.0%
LOAD_NAME	45032	0.0%	100.0%
ASYNC_GEN_WRAP	31044	0.0%	100.0%
RESUME	20007	0.0%	100.0%
UNARY_NEGATIVE	16373	0.0%	100.0%
LOAD_GLOBAL_ADAPTIVE	16137	0.0%	100.0%
GET_YIELD_FROM_ITER	15542	0.0%	100.0%
GET_AITER	15522	0.0%	100.0%
END_ASYNC_FOR	15522	0.0%	100.0%
EXTENDED_ARG	8615	0.0%	100.0%
COMPARE_OP	6950	0.0%	100.0%
IMPORT_NAME	6606	0.0%	100.0%
IMPORT_FROM	6250	0.0%	100.0%
STORE_SUBSCR_LIST_INT	4519	0.0%	100.0%
BINARY_OP	4177	0.0%	100.0%
SET_ADD	3354	0.0%	100.0%
JUMP_BACKWARD	2963	0.0%	100.0%
LOAD_BUILD_CLASS	2918	0.0%	100.0%
STORE_SUBSCR	2274	0.0%	100.0%
COMPARE_OP_FLOAT_JUMP	1736	0.0%	100.0%	6.4%
UNPACK_SEQUENCE	1734	0.0%	100.0%
BUILD_SET	756	0.0%	100.0%
UNARY_INVERT	696	0.0%	100.0%
DELETE_FAST	445	0.0%	100.0%
DICT_UPDATE	432	0.0%	100.0%
UNPACK_SEQUENCE_ADAPTIVE	391	0.0%	100.0%
BINARY_OP_MULTIPLY_FLOAT	292	0.0%	100.0%
SETUP_ANNOTATIONS	261	0.0%	100.0%
DELETE_NAME	241	0.0%	100.0%
WITH_EXCEPT_START	212	0.0%	100.0%
STORE_GLOBAL	193	0.0%	100.0%
IMPORT_STAR	157	0.0%	100.0%
POP_JUMP_BACKWARD_IF_NOT_NONE	130	0.0%	100.0%
SET_UPDATE	26	0.0%	100.0%
LOAD_CLASSDEREF	14	0.0%	100.0%
UNARY_POSITIVE	10	0.0%	100.0%
DELETE_ATTR	3	0.0%	100.0%

Pair counts

Pair counts for top 100 pairs

Pair	Count	Self	Cumulative
JUMP_BACKWARD_QUICK FOR_ITER	34706159	3.6%	3.6%
LIST_APPEND JUMP_BACKWARD_QUICK	23442060	2.4%	6.0%
LOAD_FAST LOAD_ATTR_INSTANCE_VALUE	20504782	2.1%	8.2%
FOR_ITER STORE_FAST__LOAD_FAST	19293662	2.0%	10.2%
LOAD_GLOBAL_BUILTIN LOAD_FAST	16828379	1.7%	11.9%
RESUME_QUICK LOAD_FAST	15781801	1.6%	13.5%
FOR_ITER STORE_FAST	14201160	1.5%	15.0%
PRECALL_ADAPTIVE CALL_ADAPTIVE	13720950	1.4%	16.4%
LOAD_FAST LOAD_METHOD_NO_DICT	12444225	1.3%	17.7%
LOAD_METHOD_NO_DICT LOAD_CONST	11930215	1.2%	19.0%
POP_JUMP_FORWARD_IF_FALSE LOAD_FAST	11760602	1.2%	20.2%
LOAD_DEREF LOAD_ATTR_INSTANCE_VALUE	10702186	1.1%	21.3%
PRECALL_PYFUNC CALL_PY_EXACT_ARGS	10613002	1.1%	22.4%
LOAD_FAST LOAD_ATTR_SLOT	9380299	1.0%	23.4%
CALL_PY_EXACT_ARGS RESUME_QUICK	9170604	1.0%	24.3%
LOAD_METHOD_NO_DICT PRECALL_NO_KW_METHOD_DESCRIPTOR_NOARGS	9078910	0.9%	25.3%
LOAD_CONST RETURN_VALUE	8999388	0.9%	26.2%
LOAD_CONST LOAD_CONST	8183054	0.8%	27.0%
LOAD_FAST LOAD_ATTR_ADAPTIVE	7792314	0.8%	27.8%
STORE_FAST LOAD_DEREF	7220517	0.7%	28.6%
STORE_FAST LOAD_GLOBAL_BUILTIN	7131323	0.7%	29.3%
LOAD_FAST LOAD_DEREF	7004117	0.7%	30.1%
MAP_ADD JUMP_BACKWARD_QUICK	6974476	0.7%	30.8%
STORE_FAST__LOAD_FAST LOAD_DEREF	6643555	0.7%	31.5%
LOAD_CONST PRECALL_NO_KW_METHOD_DESCRIPTOR_FAST	6629988	0.7%	32.2%
STORE_FAST__LOAD_FAST LIST_APPEND	6584426	0.7%	32.8%
CONTAINS_OP POP_JUMP_BACKWARD_IF_FALSE	6572006	0.7%	33.5%
LOAD_ATTR_INSTANCE_VALUE CONTAINS_OP	6495601	0.7%	34.2%
LOAD_CONST BINARY_SUBSCR_LIST_INT	6399291	0.7%	34.9%
UNPACK_SEQUENCE_TWO_TUPLE STORE_FAST__STORE_FAST	6381582	0.7%	35.5%
PRECALL_BUILTIN_CLASS LOAD_CONST	6350469	0.7%	36.2%
PRECALL_NO_KW_METHOD_DESCRIPTOR_NOARGS PRECALL_BUILTIN_CLASS	6266194	0.6%	36.8%
FORMAT_VALUE BUILD_STRING	6265193	0.6%	37.5%
LOAD_CONST__LOAD_FAST LOAD_METHOD_NO_DICT	6247711	0.6%	38.1%
FORMAT_VALUE LOAD_CONST__LOAD_FAST	6219131	0.6%	38.8%
BUILD_STRING LIST_APPEND	6217066	0.6%	39.4%
LOAD_DEREF FORMAT_VALUE	6216512	0.6%	40.1%
PRECALL_NO_KW_METHOD_DESCRIPTOR_FAST FORMAT_VALUE	6216426	0.6%	40.7%
BINARY_SUBSCR_LIST_INT LIST_APPEND	6216426	0.6%	41.4%
LOAD_ATTR_SLOT LOAD_FAST	5877423	0.6%	42.0%
FOR_ITER UNPACK_SEQUENCE_TWO_TUPLE	5869497	0.6%	42.6%
LOAD_ATTR_INSTANCE_VALUE LOAD_FAST	5755260	0.6%	43.2%
LOAD_GLOBAL_MODULE LOAD_ATTR_MODULE	5536612	0.6%	43.7%
LOAD_METHOD_NO_DICT LOAD_FAST	5424774	0.6%	44.3%
STORE_FAST__STORE_FAST LOAD_FAST	5081694	0.5%	44.8%
LOAD_CONST BINARY_SUBSCR_TUPLE_INT	4920908	0.5%	45.3%
STORE_FAST__LOAD_FAST LOAD_CONST	4835678	0.5%	45.8%
LOAD_FAST PRECALL_PYFUNC	4811651	0.5%	46.3%
LOAD_FAST RETURN_VALUE	4775345	0.5%	46.8%
STORE_FAST__LOAD_FAST LOAD_METHOD_NO_DICT	4276628	0.4%	47.3%
RETURN_VALUE POP_TOP	4217343	0.4%	47.7%
POP_JUMP_FORWARD_IF_TRUE LOAD_FAST	4200835	0.4%	48.2%
LOAD_FAST LOAD_METHOD_WITH_VALUES	4162408	0.4%	48.6%
CONTAINS_OP POP_JUMP_FORWARD_IF_FALSE	4046957	0.4%	49.0%
RESUME_QUICK LOAD_GLOBAL_BUILTIN	3738381	0.4%	49.4%
LOAD_DEREF LOAD_FAST	3719492	0.4%	49.8%
POP_JUMP_BACKWARD_IF_FALSE FOR_ITER	3714647	0.4%	50.2%
UNPACK_SEQUENCE_TUPLE STORE_FAST__STORE_FAST	3616347	0.4%	50.5%
LOAD_ATTR_INSTANCE_VALUE POP_JUMP_FORWARD_IF_FALSE	3562294	0.4%	50.9%
POP_TOP LOAD_FAST	3501986	0.4%	51.3%
LOAD_ATTR_INSTANCE_VALUE LOAD_METHOD_NO_DICT	3484841	0.4%	51.6%
PRECALL_NO_KW_METHOD_DESCRIPTOR_O UNPACK_SEQUENCE_TUPLE	3471351	0.4%	52.0%
POP_JUMP_FORWARD_IF_NONE LOAD_FAST	3427048	0.4%	52.3%
LOAD_FAST BINARY_SUBSCR_ADAPTIVE	3387769	0.4%	52.7%
STORE_FAST__STORE_FAST STORE_FAST__LOAD_FAST	3386280	0.4%	53.0%
LOAD_FAST BINARY_SUBSCR_DICT	3384535	0.4%	53.4%
CALL_ADAPTIVE STORE_FAST__LOAD_FAST	3354093	0.3%	53.7%
RESUME_QUICK LOAD_FAST__LOAD_CONST	3344166	0.3%	54.1%
LOAD_FAST PRECALL_ADAPTIVE	3342074	0.3%	54.4%
POP_JUMP_FORWARD_IF_FALSE LOAD_CONST	3340696	0.3%	54.8%
LOAD_METHOD_WITH_VALUES LOAD_FAST	3288784	0.3%	55.1%
LOAD_FAST__LOAD_CONST BINARY_SUBSCR_TUPLE_INT	3271285	0.3%	55.5%
LOAD_FAST LOAD_METHOD_ADAPTIVE	3259914	0.3%	55.8%
POP_TOP RESUME_QUICK	3208004	0.3%	56.1%
LOAD_FAST LOAD_GLOBAL_BUILTIN	3173390	0.3%	56.5%
BINARY_SUBSCR_TUPLE_INT RETURN_VALUE	3167195	0.3%	56.8%
LOAD_CONST PRECALL_NO_KW_METHOD_DESCRIPTOR_O	3113806	0.3%	57.1%
BINARY_SUBSCR_ADAPTIVE MAP_ADD	3048345	0.3%	57.4%
LOAD_FAST__LOAD_FAST STORE_ATTR_INSTANCE_VALUE	3036626	0.3%	57.7%
PRECALL_NO_KW_ISINSTANCE POP_JUMP_FORWARD_IF_FALSE	3012359	0.3%	58.1%
POP_TOP LOAD_CONST	2986913	0.3%	58.4%
POP_JUMP_BACKWARD_IF_FALSE LOAD_FAST	2980321	0.3%	58.7%
LOAD_CONST SEND	2978359	0.3%	59.0%
STORE_FAST LOAD_GLOBAL_MODULE	2968473	0.3%	59.3%
BINARY_SUBSCR_TUPLE_INT LIST_APPEND	2928274	0.3%	59.6%
BINARY_SUBSCR_DICT MAP_ADD	2928274	0.3%	59.9%
GET_AWAITABLE LOAD_CONST	2916251	0.3%	60.2%
LOAD_GLOBAL_BUILTIN PRECALL_NO_KW_ISINSTANCE	2913483	0.3%	60.5%
STORE_FAST__LOAD_FAST POP_JUMP_FORWARD_IF_FALSE	2838980	0.3%	60.8%
LOAD_FAST LOAD_GLOBAL_MODULE	2831964	0.3%	61.1%
LOAD_CONST COMPARE_OP_INT_JUMP	2766312	0.3%	61.4%
STORE_ATTR_INSTANCE_VALUE LOAD_FAST	2713770	0.3%	61.7%
LOAD_METHOD_ADAPTIVE LOAD_FAST	2663958	0.3%	61.9%
LOAD_CONST__LOAD_FAST STORE_ATTR_INSTANCE_VALUE	2609498	0.3%	62.2%
RESUME_QUICK LOAD_GLOBAL_MODULE	2595405	0.3%	62.5%
LOAD_FAST STORE_ATTR_INSTANCE_VALUE	2510197	0.3%	62.7%
LOAD_FAST PRECALL_NO_KW_LEN	2471536	0.3%	63.0%
LOAD_ATTR_ADAPTIVE LOAD_CONST	2465113	0.3%	63.3%
GET_ITER FOR_ITER	2424449	0.3%	63.5%
LOAD_GLOBAL_MODULE LOAD_FAST	2422660	0.3%	63.8%

Predecessor/Successor Pairs

Top 3 predecessors and successors of each opcode

ASYNC_GEN_WRAP

Successors and predecessors for ASYNC_GEN_WRAP

Predecessors	Count	Percentage
LOAD_FAST	15522	50.0%
LOAD_CONST	15522	50.0%

Successors	Count	Percentage
YIELD_VALUE	31044	100.0%

BEFORE_ASYNC_WITH

Successors and predecessors for BEFORE_ASYNC_WITH

Predecessors	Count	Percentage
RETURN_VALUE	117442	88.3%
CALL_ADAPTIVE	15518	11.7%
CALL	6	0.0%

Successors	Count	Percentage
GET_AWAITABLE	132966	100.0%

BEFORE_WITH

Successors and predecessors for BEFORE_WITH

Predecessors	Count	Percentage
CALL_ADAPTIVE	64802	34.6%
LOAD_ATTR_INSTANCE_VALUE	62641	33.5%
LOAD_FAST	58679	31.4%

Successors	Count	Percentage
POP_TOP	186244	99.5%
STORE_FAST__LOAD_FAST	811	0.4%
STORE_FAST	43	0.0%

BINARY_OP

Successors and predecessors for BINARY_OP

Predecessors	Count	Percentage
LOAD_CONST	1268	30.4%
LOAD_FAST	901	21.6%
CALL	442	10.6%

Successors	Count	Percentage
STORE_FAST	904	21.6%
LOAD_FAST	447	10.7%
PRECALL	425	10.2%

BINARY_OP_ADAPTIVE

Successors and predecessors for BINARY_OP_ADAPTIVE

Predecessors	Count	Percentage
CALL_ADAPTIVE	133021	16.1%
LOAD_FAST	128609	15.6%
BINARY_OP_ADAPTIVE	115485	14.0%

Successors	Count	Percentage
RETURN_VALUE	212520	25.7%
PUSH_EXC_INFO	117345	14.2%
BINARY_OP_ADAPTIVE	115485	14.0%

BINARY_OP_ADD_FLOAT

Successors and predecessors for BINARY_OP_ADD_FLOAT

Predecessors	Count	Percentage
LOAD_FAST	74182	100.0%
BINARY_OP_ADAPTIVE	2	0.0%

Successors	Count	Percentage
STORE_FAST__LOAD_FAST	58669	79.1%
RETURN_VALUE	15515	20.9%

BINARY_OP_ADD_INT

Successors and predecessors for BINARY_OP_ADD_INT

Predecessors	Count	Percentage
LOAD_CONST	530504	46.3%
LOAD_FAST	211328	18.5%
PRECALL_NO_KW_LEN	177659	15.5%

Successors	Count	Percentage
SWAP	405140	35.4%
STORE_DEREF	390327	34.1%
BUILD_SLICE	117995	10.3%

BINARY_OP_ADD_UNICODE

Successors and predecessors for BINARY_OP_ADD_UNICODE

Predecessors	Count	Percentage
LOAD_FAST	940921	61.4%
PRECALL_NO_KW_STR_1	293856	19.2%
LOAD_ATTR_ADAPTIVE	133776	8.7%

Successors	Count	Percentage
RETURN_VALUE	528897	34.5%
LOAD_FAST	475548	31.0%
LOAD_GLOBAL_BUILTIN	235028	15.3%

BINARY_OP_INPLACE_ADD_UNICODE

Successors and predecessors for BINARY_OP_INPLACE_ADD_UNICODE

Predecessors	Count	Percentage
BINARY_OP_ADD_UNICODE	121099	97.6%
LOAD_FAST__LOAD_FAST	1076	0.9%
BINARY_SUBSCR_ADAPTIVE	792	0.6%

Successors	Count	Percentage
LOAD_FAST__LOAD_FAST	60693	48.9%
LOAD_FAST	59165	47.7%
JUMP_BACKWARD_QUICK	3292	2.7%

BINARY_OP_MULTIPLY_FLOAT

Successors and predecessors for BINARY_OP_MULTIPLY_FLOAT

Predecessors	Count	Percentage
LOAD_DEREF	280	95.9%
LOAD_FAST__LOAD_CONST	8	2.7%
BINARY_OP_ADAPTIVE	4	1.4%

Successors	Count	Percentage
PRECALL_NO_KW_BUILTIN_O	280	95.9%
STORE_FAST	10	3.4%
PRECALL_ADAPTIVE	2	0.7%

BINARY_OP_MULTIPLY_INT

Successors and predecessors for BINARY_OP_MULTIPLY_INT

Predecessors	Count	Percentage
LOAD_FAST__LOAD_CONST	59570	54.8%
LOAD_ATTR_INSTANCE_VALUE	46766	43.0%
BINARY_SUBSCR_TUPLE_INT	908	0.8%

Successors	Count	Percentage
LOAD_FAST	59365	54.6%
COMPARE_OP_INT_JUMP	46766	43.0%
PRECALL_ADAPTIVE	948	0.9%

BINARY_OP_SUBTRACT_FLOAT

Successors and predecessors for BINARY_OP_SUBTRACT_FLOAT

Predecessors	Count	Percentage
LOAD_FAST	58862	39.6%
LOAD_FAST__LOAD_FAST	58660	39.5%
LOAD_GLOBAL_MODULE	15638	10.5%

Successors	Count	Percentage
LOAD_FAST	74030	49.8%
PRECALL_PYFUNC	58862	39.6%
LOAD_CONST	15711	10.6%

BINARY_OP_SUBTRACT_INT

Successors and predecessors for BINARY_OP_SUBTRACT_INT

Predecessors	Count	Percentage
PRECALL_NO_KW_LEN	220479	54.2%
LOAD_FAST	83893	20.6%
LOAD_FAST__LOAD_CONST	63297	15.6%

Successors	Count	Percentage
SWAP	135060	33.2%
STORE_FAST__LOAD_FAST	122437	30.1%
BINARY_OP_ADAPTIVE	98243	24.2%

BINARY_SUBSCR

Successors and predecessors for BINARY_SUBSCR

Predecessors	Count	Percentage
BINARY_SUBSCR_LIST_INT	38808	80.8%
LOAD_NAME	2356	4.9%
LOAD_CONST	2002	4.2%

Successors	Count	Percentage
LOAD_CONST	39938	85.6%
BUILD_TUPLE	1120	2.4%
STORE_FAST	764	1.6%

BINARY_SUBSCR_ADAPTIVE

Successors and predecessors for BINARY_SUBSCR_ADAPTIVE

Predecessors	Count	Percentage
LOAD_FAST	3387769	54.4%
BUILD_SLICE	1545776	24.8%
LOAD_FAST__LOAD_CONST	1092467	17.5%

Successors	Count	Percentage
MAP_ADD	3048345	49.0%
LOAD_FAST	784710	12.6%
LOAD_CONST	570534	9.2%

BINARY_SUBSCR_DICT

Successors and predecessors for BINARY_SUBSCR_DICT

Predecessors	Count	Percentage
LOAD_FAST	3384535	56.5%
LOAD_FAST__LOAD_CONST	1083097	18.1%
LOAD_DEREF	571998	9.5%

Successors	Count	Percentage
MAP_ADD	2928274	48.9%
LOAD_METHOD_NO_DICT	1094409	18.3%
STORE_SUBSCR_DICT	442635	7.4%

BINARY_SUBSCR_GETITEM

Successors and predecessors for BINARY_SUBSCR_GETITEM

Predecessors	Count	Percentage
LOAD_FAST__LOAD_FAST	74647	65.0%
LOAD_CONST	33020	28.8%
LOAD_FAST__LOAD_CONST	3454	3.0%

Successors	Count	Percentage
RESUME_QUICK	114726	100.0%
RESUME	20	0.0%
MAKE_CELL	12	0.0%

BINARY_SUBSCR_LIST_INT

Successors and predecessors for BINARY_SUBSCR_LIST_INT

Predecessors	Count	Percentage
LOAD_CONST	6399291	94.4%
LOAD_FAST__LOAD_CONST	326274	4.8%
RETURN_VALUE	15514	0.2%

Successors	Count	Percentage
LIST_APPEND	6216426	91.7%
LOAD_METHOD_NO_DICT	277233	4.1%
PRECALL_NO_KW_LEN	138583	2.0%

BINARY_SUBSCR_TUPLE_INT

Successors and predecessors for BINARY_SUBSCR_TUPLE_INT

Predecessors	Count	Percentage
LOAD_CONST	4920908	60.1%
LOAD_FAST__LOAD_CONST	3271285	39.9%
LOAD_FAST	248	0.0%

Successors	Count	Percentage
RETURN_VALUE	3167195	38.7%
LIST_APPEND	2928274	35.7%
STORE_FAST__LOAD_FAST	974874	11.9%

BUILD_CONST_KEY_MAP

Successors and predecessors for BUILD_CONST_KEY_MAP

Predecessors	Count	Percentage
LOAD_CONST	112808	87.3%
LOAD_FAST__LOAD_CONST	16346	12.7%

Successors	Count	Percentage
STORE_FAST__LOAD_FAST	32089	24.8%
STORE_FAST	32018	24.8%
PRECALL_PYFUNC	31028	24.0%

BUILD_LIST

Successors and predecessors for BUILD_LIST

Predecessors	Count	Percentage
RESUME_QUICK	937912	31.5%
LOAD_FAST	609236	20.5%
STORE_FAST	260806	8.8%

Successors	Count	Percentage
LOAD_FAST	1301150	43.7%
LOAD_FAST__LOAD_FAST	442368	14.9%
STORE_FAST__LOAD_FAST	422999	14.2%

BUILD_MAP

Successors and predecessors for BUILD_MAP

Predecessors	Count	Percentage
LOAD_FAST	207929	15.5%
LIST_TO_TUPLE	177587	13.3%
STORE_ATTR_SLOT	176027	13.1%

Successors	Count	Percentage
LOAD_FAST	870100	65.0%
STORE_FAST__LOAD_FAST	184369	13.8%
STORE_FAST	156308	11.7%

BUILD_SET

Successors and predecessors for BUILD_SET

Predecessors	Count	Percentage
RESUME_QUICK	357	47.2%
LOAD_ATTR_ADAPTIVE	187	24.7%
LOAD_CONST	68	9.0%

Successors	Count	Percentage
LOAD_FAST	401	53.0%
CONTAINS_OP	202	26.7%
BINARY_OP_ADAPTIVE	85	11.2%

BUILD_SLICE

Successors and predecessors for BUILD_SLICE

Predecessors	Count	Percentage
LOAD_CONST	1176351	73.8%
LOAD_FAST	169330	10.6%
BINARY_OP_ADD_INT	117995	7.4%

Successors	Count	Percentage
BINARY_SUBSCR_ADAPTIVE	1545776	97.0%
DELETE_SUBSCR	46780	2.9%
BINARY_SUBSCR	891	0.1%

BUILD_STRING

Successors and predecessors for BUILD_STRING

Predecessors	Count	Percentage
FORMAT_VALUE	6265193	99.9%
LOAD_CONST	5379	0.1%

Successors	Count	Percentage
LIST_APPEND	6217066	99.1%
PRECALL_BOUND_METHOD	31034	0.5%
LOAD_CONST	15680	0.3%

BUILD_TUPLE

Successors and predecessors for BUILD_TUPLE

Predecessors	Count	Percentage
LOAD_FAST__LOAD_FAST	1845747	38.0%
LOAD_ATTR_SLOT	897670	18.5%
LOAD_CLOSURE	411631	8.5%

Successors	Count	Percentage
RETURN_VALUE	1464349	30.1%
LOAD_CONST	474921	9.8%
PRECALL_NO_KW_BUILTIN_O	400501	8.2%

CALL

Successors and predecessors for CALL

Predecessors	Count	Percentage
CALL_PY_EXACT_ARGS	716527	94.5%
PRECALL	41698	5.5%
CALL_PY_WITH_DEFAULTS	82	0.0%

Successors	Count	Percentage
RESUME_QUICK	408387	53.9%
COPY_FREE_VARS	253509	33.4%
RETURN_GENERATOR	61163	8.1%

CALL_ADAPTIVE

Successors and predecessors for CALL_ADAPTIVE

Predecessors	Count	Percentage
PRECALL_ADAPTIVE	13720950	82.7%
PRECALL_PYFUNC	2418286	14.6%
PRECALL	225543	1.4%

Successors	Count	Percentage
STORE_FAST__LOAD_FAST	3354093	20.2%
RESUME_QUICK	1929784	11.6%
POP_TOP	1755434	10.6%

CALL_FUNCTION_EX

Successors and predecessors for CALL_FUNCTION_EX

Predecessors	Count	Percentage
DICT_MERGE	573085	74.6%
LOAD_FAST	140444	18.3%
RETURN_GENERATOR	31044	4.0%

Successors	Count	Percentage
GET_AWAITABLE	378753	49.3%
RETURN_VALUE	76158	9.9%
STORE_FAST__LOAD_FAST	66223	8.6%

CALL_PY_EXACT_ARGS

Successors and predecessors for CALL_PY_EXACT_ARGS

Predecessors	Count	Percentage
PRECALL_PYFUNC	10613002	91.1%
PRECALL_BOUND_METHOD	1017481	8.7%
CALL_ADAPTIVE	14863	0.1%

Successors	Count	Percentage
RESUME_QUICK	9170604	78.7%
RETURN_GENERATOR	1344655	11.5%
CALL	716527	6.2%

CALL_PY_WITH_DEFAULTS

Successors and predecessors for CALL_PY_WITH_DEFAULTS

Predecessors	Count	Percentage
PRECALL_PYFUNC	282147	59.5%
PRECALL_BOUND_METHOD	191614	40.4%
CALL_ADAPTIVE	110	0.0%

Successors	Count	Percentage
RESUME_QUICK	341928	72.2%
RETURN_GENERATOR	131510	27.8%
MAKE_CELL	192	0.0%

CHECK_EXC_MATCH

Successors and predecessors for CHECK_EXC_MATCH

Predecessors	Count	Percentage
LOAD_GLOBAL_BUILTIN	258303	98.2%
BUILD_TUPLE	3190	1.2%
LOAD_GLOBAL	856	0.3%

Successors	Count	Percentage
POP_JUMP_FORWARD_IF_FALSE	262907	100.0%

COMPARE_OP

Successors and predecessors for COMPARE_OP

Predecessors	Count	Percentage
LOAD_CONST	2527	36.4%
COMPARE_OP_INT_JUMP	2519	36.2%
LOAD_ATTR	406	5.8%

Successors	Count	Percentage
POP_JUMP_FORWARD_IF_FALSE	5934	85.4%
POP_JUMP_FORWARD_IF_TRUE	434	6.2%
POP_JUMP_BACKWARD_IF_FALSE	130	1.9%

COMPARE_OP_ADAPTIVE

Successors and predecessors for COMPARE_OP_ADAPTIVE

Predecessors	Count	Percentage
LOAD_CONST	884204	36.8%
LOAD_ATTR_ADAPTIVE	557939	23.2%
BUILD_TUPLE	258103	10.7%

Successors	Count	Percentage
POP_JUMP_FORWARD_IF_FALSE	1569451	65.3%
RETURN_VALUE	356521	14.8%
POP_JUMP_FORWARD_IF_TRUE	178009	7.4%

COMPARE_OP_FLOAT_JUMP

Successors and predecessors for COMPARE_OP_FLOAT_JUMP

Predecessors	Count	Percentage
LOAD_ATTR_INSTANCE_VALUE	1391	80.1%
LOAD_ATTR_WITH_HINT	306	17.6%
LOAD_CONST	24	1.4%

Successors	Count	Percentage
LOAD_GLOBAL_MODULE	1281	73.8%
LOAD_FAST	288	16.6%
COMPARE_OP	111	6.4%

COMPARE_OP_INT_JUMP

Successors and predecessors for COMPARE_OP_INT_JUMP

Predecessors	Count	Percentage
LOAD_CONST	2766312	56.0%
BINARY_SUBSCR_TUPLE_INT	781001	15.8%
COPY	411041	8.3%

Successors	Count	Percentage
LOAD_FAST	1641746	33.2%
LOAD_CONST	834445	16.9%
FOR_ITER	660931	13.4%

COMPARE_OP_STR_JUMP

Successors and predecessors for COMPARE_OP_STR_JUMP

Predecessors	Count	Percentage
LOAD_CONST	1179378	50.2%
LOAD_FAST__LOAD_CONST	909899	38.7%
LOAD_FAST	134424	5.7%

Successors	Count	Percentage
LOAD_FAST__LOAD_CONST	831600	35.4%
LOAD_FAST	777242	33.1%
LOAD_GLOBAL_BUILTIN	471182	20.1%

CONTAINS_OP

Successors and predecessors for CONTAINS_OP

Predecessors	Count	Percentage
LOAD_ATTR_INSTANCE_VALUE	6495601	59.2%
LOAD_CONST__LOAD_FAST	1325137	12.1%
LOAD_FAST	1264767	11.5%

Successors	Count	Percentage
POP_JUMP_BACKWARD_IF_FALSE	6572006	59.9%
POP_JUMP_FORWARD_IF_FALSE	4046957	36.9%
EXTENDED_ARG_QUICK	123710	1.1%

COPY

Successors and predecessors for COPY

Predecessors	Count	Percentage
LOAD_FAST	415729	29.4%
SWAP	413031	29.2%
LOAD_CONST	287147	20.3%

Successors	Count	Percentage
LOAD_ATTR_INSTANCE_VALUE	537889	38.0%
COMPARE_OP_INT_JUMP	411041	29.1%
STORE_FAST__STORE_FAST	287404	20.3%

COPY_FREE_VARS

Successors and predecessors for COPY_FREE_VARS

Predecessors	Count	Percentage
CALL_ADAPTIVE	345632	45.6%
CALL	253509	33.5%
CALL_PY_EXACT_ARGS	158057	20.9%

Successors	Count	Percentage
RESUME_QUICK	907927	69.5%
RETURN_GENERATOR	395105	30.3%
RESUME	1484	0.1%

DELETE_ATTR

Successors and predecessors for DELETE_ATTR

Predecessors	Count	Percentage
LOAD_FAST	3	100.0%

Successors	Count	Percentage
LOAD_GLOBAL	2	66.7%
LOAD_FAST	1	33.3%

DELETE_FAST

Successors and predecessors for DELETE_FAST

Predecessors	Count	Percentage
STORE_FAST	445	100.0%

Successors	Count	Percentage
RERAISE	132	29.7%
JUMP_FORWARD	124	27.9%
LOAD_CONST	75	16.9%

DELETE_NAME

Successors and predecessors for DELETE_NAME

Predecessors	Count	Percentage
DELETE_NAME	138	57.3%
STORE_NAME	52	21.6%
FOR_ITER	25	10.4%

Successors	Count	Percentage
DELETE_NAME	138	57.3%
LOAD_CONST	62	25.7%
PUSH_NULL	13	5.4%

DELETE_SUBSCR

Successors and predecessors for DELETE_SUBSCR

Predecessors	Count	Percentage
BUILD_SLICE	46780	73.2%
LOAD_FAST	17141	26.8%
LOAD_CONST	16	0.0%

Successors	Count	Percentage
LOAD_FAST	47037	73.6%
LOAD_CONST	15806	24.7%
LOAD_GLOBAL_MODULE	1012	1.6%

DICT_MERGE

Successors and predecessors for DICT_MERGE

Predecessors	Count	Percentage
LOAD_FAST	572701	99.9%
CALL_ADAPTIVE	255	0.0%
LOAD_ATTR_INSTANCE_VALUE	91	0.0%

Successors	Count	Percentage
CALL_FUNCTION_EX	573085	100.0%

DICT_UPDATE

Successors and predecessors for DICT_UPDATE

Predecessors	Count	Percentage
MAP_ADD	395	91.4%
BUILD_CONST_KEY_MAP	31	7.2%
LOAD_FAST	2	0.5%

Successors	Count	Percentage
BUILD_MAP	374	86.6%
STORE_NAME	34	7.9%
LOAD_CONST	9	2.1%

END_ASYNC_FOR

Successors and predecessors for END_ASYNC_FOR

Predecessors	Count	Percentage
SEND	15522	100.0%

Successors	Count	Percentage
LOAD_CONST	15522	100.0%

EXTENDED_ARG

Successors and predecessors for EXTENDED_ARG

Predecessors	Count	Percentage
MAP_ADD	4283	49.7%
LOAD_CONST	3289	38.2%
BUILD_MAP	265	3.1%

Successors	Count	Percentage
LOAD_CONST	8153	94.6%
POP_JUMP_FORWARD_IF_FALSE	161	1.9%
FOR_ITER	139	1.6%

EXTENDED_ARG_QUICK

Successors and predecessors for EXTENDED_ARG_QUICK

Predecessors	Count	Percentage
JUMP_BACKWARD_QUICK	214808	20.3%
LOAD_FAST	176371	16.6%
GET_ITER	145672	13.7%

Successors	Count	Percentage
FOR_ITER	360492	34.0%
POP_JUMP_FORWARD_IF_TRUE	222577	21.0%
JUMP_BACKWARD_QUICK	217299	20.5%

FORMAT_VALUE

Successors and predecessors for FORMAT_VALUE

Predecessors	Count	Percentage
LOAD_DEREF	6216512	49.8%
PRECALL_NO_KW_METHOD_DESCRIPTOR_FAST	6216426	49.8%
LOAD_CONST__LOAD_FAST	50138	0.4%

Successors	Count	Percentage
BUILD_STRING	6265193	50.2%
LOAD_CONST__LOAD_FAST	6219131	49.8%
LOAD_CONST	5657	0.0%

FOR_ITER

Successors and predecessors for FOR_ITER

Predecessors	Count	Percentage
JUMP_BACKWARD_QUICK	34706159	81.2%
POP_JUMP_BACKWARD_IF_FALSE	3714647	8.7%
GET_ITER	2424449	5.7%

Successors	Count	Percentage
STORE_FAST__LOAD_FAST	19293662	45.1%
STORE_FAST	14201160	33.2%
UNPACK_SEQUENCE_TWO_TUPLE	5869497	13.7%

GET_AITER

Successors and predecessors for GET_AITER

Predecessors	Count	Percentage
RETURN_GENERATOR	15522	100.0%

Successors	Count	Percentage
GET_ANEXT	15522	100.0%

GET_ANEXT

Successors and predecessors for GET_ANEXT

Predecessors	Count	Percentage
JUMP_BACKWARD_QUICK	31039	66.7%
GET_AITER	15522	33.3%
JUMP_BACKWARD	5	0.0%

Successors	Count	Percentage
LOAD_CONST	46566	100.0%

GET_AWAITABLE

Successors and predecessors for GET_AWAITABLE

Predecessors	Count	Percentage
RETURN_GENERATOR	1698660	58.2%
CALL_ADAPTIVE	389901	13.4%
CALL_FUNCTION_EX	378753	13.0%

Successors	Count	Percentage
LOAD_CONST	2916251	100.0%

GET_ITER

Successors and predecessors for GET_ITER

Predecessors	Count	Percentage
LOAD_FAST	1042869	30.3%
STORE_FAST__LOAD_FAST	474573	13.8%
LOAD_ATTR_INSTANCE_VALUE	420763	12.2%

Successors	Count	Percentage
FOR_ITER	2424449	70.5%
PRECALL_PYFUNC	865249	25.2%
EXTENDED_ARG_QUICK	145672	4.2%

GET_YIELD_FROM_ITER

Successors and predecessors for GET_YIELD_FROM_ITER

Predecessors	Count	Percentage
LOAD_ATTR_INSTANCE_VALUE	15518	99.8%
LOAD_ATTR_SLOT	13	0.1%
LOAD_ATTR	5	0.0%

Successors	Count	Percentage
LOAD_CONST	15542	100.0%

IMPORT_FROM

Successors and predecessors for IMPORT_FROM

Predecessors	Count	Percentage
STORE_NAME	3291	52.7%
IMPORT_NAME	2936	47.0%
POP_TOP	15	0.2%

Successors	Count	Percentage
STORE_NAME	6123	98.0%
STORE_FAST	105	1.7%
SWAP	15	0.2%

IMPORT_NAME

Successors and predecessors for IMPORT_NAME

Predecessors	Count	Percentage
LOAD_CONST	6606	100.0%

Successors	Count	Percentage
IMPORT_FROM	2936	44.4%
STORE_NAME	2030	30.7%
STORE_FAST__LOAD_FAST	1359	20.6%

IMPORT_STAR

Successors and predecessors for IMPORT_STAR

Predecessors	Count	Percentage
IMPORT_NAME	157	100.0%

Successors	Count	Percentage
LOAD_CONST	122	77.7%
PUSH_NULL	10	6.4%
LOAD_NAME	9	5.7%

IS_OP

Successors and predecessors for IS_OP

Predecessors	Count	Percentage
LOAD_CONST	570790	23.0%
LOAD_FAST	483641	19.5%
LOAD_FAST__LOAD_FAST	389332	15.7%

Successors	Count	Percentage
POP_JUMP_FORWARD_IF_FALSE	1883381	75.8%
JUMP_IF_TRUE_OR_POP	294435	11.9%
JUMP_IF_FALSE_OR_POP	119233	4.8%

JUMP_BACKWARD

Successors and predecessors for JUMP_BACKWARD

Predecessors	Count	Percentage
POP_TOP	901	30.4%
LIST_APPEND	803	27.1%
POP_JUMP_FORWARD_IF_FALSE	289	9.8%

Successors	Count	Percentage
FOR_ITER	2824	95.3%
EXTENDED_ARG	56	1.9%
LOAD_FAST	37	1.2%

JUMP_BACKWARD_NO_INTERRUPT

Successors and predecessors for JUMP_BACKWARD_NO_INTERRUPT

Predecessors	Count	Percentage
RESUME_QUICK	1572156	100.0%
RESUME	194	0.0%

Successors	Count	Percentage
SEND	1572350	100.0%

JUMP_BACKWARD_QUICK

Successors and predecessors for JUMP_BACKWARD_QUICK

Predecessors	Count	Percentage
LIST_APPEND	23442060	66.9%
MAP_ADD	6974476	19.9%
PRECALL_NO_KW_LIST_APPEND	1410424	4.0%

Successors	Count	Percentage
FOR_ITER	34706159	99.0%
EXTENDED_ARG_QUICK	214808	0.6%
LOAD_FAST	64411	0.2%

JUMP_FORWARD

Successors and predecessors for JUMP_FORWARD

Predecessors	Count	Percentage
STORE_FAST	1499632	32.8%
POP_TOP	848808	18.6%
LOAD_CONST	469611	10.3%

Successors	Count	Percentage
LOAD_FAST	1774784	38.8%
STORE_FAST__LOAD_FAST	692438	15.1%
LOAD_CONST__LOAD_FAST	509781	11.1%

JUMP_IF_FALSE_OR_POP

Successors and predecessors for JUMP_IF_FALSE_OR_POP

Predecessors	Count	Percentage
PRECALL_NO_KW_BUILTIN_FAST	255012	45.8%
IS_OP	119233	21.4%
CONTAINS_OP	74367	13.3%

Successors	Count	Percentage
RETURN_VALUE	353508	63.4%
LOAD_FAST	118529	21.3%
LOAD_FAST__LOAD_FAST	58669	10.5%

JUMP_IF_TRUE_OR_POP

Successors and predecessors for JUMP_IF_TRUE_OR_POP

Predecessors	Count	Percentage
LOAD_ATTR_ADAPTIVE	414752	29.5%
IS_OP	294435	21.0%
LOAD_ATTR_INSTANCE_VALUE	238527	17.0%

Successors	Count	Percentage
LOAD_FAST	530932	37.8%
RETURN_VALUE	384167	27.4%
LOAD_GLOBAL_BUILTIN	236466	16.8%

KW_NAMES

Successors and predecessors for KW_NAMES

Predecessors	Count	Percentage
LOAD_FAST	1840027	51.3%
LOAD_FAST__LOAD_FAST	616121	17.2%
LOAD_CONST	483934	13.5%

Successors	Count	Percentage
PRECALL_ADAPTIVE	1879943	52.4%
PRECALL_PYFUNC	1466927	40.9%
PRECALL_BOUND_METHOD	137065	3.8%

LIST_APPEND

Successors and predecessors for LIST_APPEND

Predecessors	Count	Percentage
STORE_FAST__LOAD_FAST	6584426	28.1%
BUILD_STRING	6217066	26.5%
BINARY_SUBSCR_LIST_INT	6216426	26.5%

Successors	Count	Percentage
JUMP_BACKWARD_QUICK	23442060	100.0%
JUMP_BACKWARD	803	0.0%
PUSH_NULL	99	0.0%

LIST_EXTEND

Successors and predecessors for LIST_EXTEND

Predecessors	Count	Percentage
LOAD_FAST	198124	99.4%
LOAD_CONST	1101	0.6%
LOAD_DEREF	124	0.1%

Successors	Count	Percentage
LIST_TO_TUPLE	198250	99.4%
LOAD_FAST__LOAD_CONST	602	0.3%
STORE_NAME	289	0.1%

LIST_TO_TUPLE

Successors and predecessors for LIST_TO_TUPLE

Predecessors	Count	Percentage
LIST_EXTEND	198250	100.0%
LIST_APPEND	54	0.0%

Successors	Count	Percentage
BUILD_MAP	177587	89.6%
CALL_FUNCTION_EX	20662	10.4%
LOAD_FAST	26	0.0%

LOAD_ATTR

Successors and predecessors for LOAD_ATTR

Predecessors	Count	Percentage
LOAD_ATTR_INSTANCE_VALUE	231221	77.4%
LOAD_ATTR_WITH_HINT	36759	12.3%
LOAD_FAST	14795	5.0%

Successors	Count	Percentage
LOAD_GLOBAL_BUILTIN	74196	24.8%
LOAD_GLOBAL_MODULE	38547	12.9%
BUILD_TUPLE	37627	12.6%

LOAD_ATTR_ADAPTIVE

Successors and predecessors for LOAD_ATTR_ADAPTIVE

Predecessors	Count	Percentage
LOAD_FAST	7792314	57.5%
LOAD_ATTR_SLOT	1292369	9.5%
LOAD_GLOBAL_MODULE	1111509	8.2%

Successors	Count	Percentage
LOAD_CONST	2465113	18.2%
LOAD_FAST	2326857	17.2%
STORE_FAST__LOAD_FAST	2154870	15.9%

LOAD_ATTR_INSTANCE_VALUE

Successors and predecessors for LOAD_ATTR_INSTANCE_VALUE

Predecessors	Count	Percentage
LOAD_FAST	20504782	59.2%
LOAD_DEREF	10702186	30.9%
LOAD_FAST__LOAD_FAST	1225560	3.5%

Successors	Count	Percentage
CONTAINS_OP	6495601	18.8%
LOAD_FAST	5755260	16.6%
POP_JUMP_FORWARD_IF_FALSE	3562294	10.3%

LOAD_ATTR_MODULE

Successors and predecessors for LOAD_ATTR_MODULE

Predecessors	Count	Percentage
LOAD_GLOBAL_MODULE	5536612	99.9%
LOAD_FAST	1755	0.0%
LOAD_GLOBAL	1215	0.0%

Successors	Count	Percentage
LOAD_FAST	1676884	30.3%
PRECALL_ADAPTIVE	922892	16.7%
LOAD_GLOBAL_MODULE	682464	12.3%

LOAD_ATTR_SLOT

Successors and predecessors for LOAD_ATTR_SLOT

Predecessors	Count	Percentage
LOAD_FAST	9380299	93.8%
LOAD_CONST__LOAD_FAST	381774	3.8%
LOAD_ATTR_INSTANCE_VALUE	176555	1.8%

Successors	Count	Percentage
LOAD_FAST	5877423	58.8%
LOAD_ATTR_ADAPTIVE	1292369	12.9%
BUILD_TUPLE	897670	9.0%

LOAD_ATTR_WITH_HINT

Successors and predecessors for LOAD_ATTR_WITH_HINT

Predecessors	Count	Percentage
LOAD_FAST	806387	95.8%
STORE_FAST__LOAD_FAST	26126	3.1%
LOAD_ATTR_INSTANCE_VALUE	7356	0.9%

Successors	Count	Percentage
RETURN_VALUE	235029	27.9%
POP_JUMP_FORWARD_IF_FALSE	148776	17.7%
LOAD_METHOD_WITH_VALUES	58732	7.0%

LOAD_BUILD_CLASS

Successors and predecessors for LOAD_BUILD_CLASS

Predecessors	Count	Percentage
PUSH_NULL	2918	100.0%

Successors	Count	Percentage
LOAD_CONST	2883	98.8%
LOAD_CLOSURE	32	1.1%
EXTENDED_ARG_QUICK	3	0.1%

LOAD_CLASSDEREF

Successors and predecessors for LOAD_CLASSDEREF

Predecessors	Count	Percentage
STORE_NAME	14	100.0%

Successors	Count	Percentage
STORE_NAME	13	92.9%
LOAD_ATTR	1	7.1%

LOAD_CLOSURE

Successors and predecessors for LOAD_CLOSURE

Predecessors	Count	Percentage
LOAD_CLOSURE	472893	53.4%
RESUME_QUICK	145087	16.4%
POP_JUMP_FORWARD_IF_TRUE	62373	7.0%

Successors	Count	Percentage
LOAD_CLOSURE	472893	53.4%
BUILD_TUPLE	411631	46.5%
COPY	503	0.1%

LOAD_CONST

Successors and predecessors for LOAD_CONST

Predecessors	Count	Percentage
LOAD_METHOD_NO_DICT	11930215	20.3%
LOAD_CONST	8183054	13.9%
PRECALL_BUILTIN_CLASS	6350469	10.8%

Successors	Count	Percentage
RETURN_VALUE	8999388	15.3%
LOAD_CONST	8183054	13.9%
PRECALL_NO_KW_METHOD_DESCRIPTOR_FAST	6629988	11.3%

LOAD_CONST__LOAD_FAST

Successors and predecessors for LOAD_CONST__LOAD_FAST

Predecessors	Count	Percentage
FORMAT_VALUE	6219131	50.7%
STORE_ATTR_INSTANCE_VALUE	1641333	13.4%
POP_JUMP_FORWARD_IF_FALSE	839952	6.9%

Successors	Count	Percentage
LOAD_METHOD_NO_DICT	6247711	51.0%
STORE_ATTR_INSTANCE_VALUE	2609498	21.3%
CONTAINS_OP	1325137	10.8%

LOAD_DEREF

Successors and predecessors for LOAD_DEREF

Predecessors	Count	Percentage
STORE_FAST	7220517	28.2%
LOAD_FAST	7004117	27.4%
STORE_FAST__LOAD_FAST	6643555	26.0%

Successors	Count	Percentage
LOAD_ATTR_INSTANCE_VALUE	10702186	41.8%
FORMAT_VALUE	6216512	24.3%
LOAD_FAST	3719492	14.5%

LOAD_FAST

Successors and predecessors for LOAD_FAST

Predecessors	Count	Percentage
LOAD_GLOBAL_BUILTIN	16828379	13.5%
RESUME_QUICK	15781801	12.7%
POP_JUMP_FORWARD_IF_FALSE	11760602	9.5%

Successors	Count	Percentage
LOAD_ATTR_INSTANCE_VALUE	20504782	16.5%
LOAD_METHOD_NO_DICT	12444225	10.0%
LOAD_ATTR_SLOT	9380299	7.5%

LOAD_FAST__LOAD_CONST

Successors and predecessors for LOAD_FAST__LOAD_CONST

Predecessors	Count	Percentage
RESUME_QUICK	3344166	27.9%
LOAD_GLOBAL_BUILTIN	1535367	12.8%
LOAD_GLOBAL_MODULE	967760	8.1%

Successors	Count	Percentage
BINARY_SUBSCR_TUPLE_INT	3271285	27.3%
BINARY_SUBSCR_ADAPTIVE	1092467	9.1%
BINARY_SUBSCR_DICT	1083097	9.1%

LOAD_FAST__LOAD_FAST

Successors and predecessors for LOAD_FAST__LOAD_FAST

Predecessors	Count	Percentage
LOAD_GLOBAL_MODULE	2062417	13.5%
STORE_ATTR_INSTANCE_VALUE	1813385	11.9%
LOAD_FAST__LOAD_FAST	1364459	9.0%

Successors	Count	Percentage
STORE_ATTR_INSTANCE_VALUE	3036626	19.9%
BUILD_TUPLE	1845747	12.1%
LOAD_FAST	1437517	9.4%

LOAD_GLOBAL

Successors and predecessors for LOAD_GLOBAL

Predecessors	Count	Percentage
LOAD_GLOBAL_BUILTIN	17449	31.3%
LOAD_GLOBAL_MODULE	10839	19.4%
LOAD_FAST	4790	8.6%

Successors	Count	Percentage
LOAD_FAST	21313	38.2%
PRECALL	4568	8.2%
LOAD_ATTR	4272	7.7%

LOAD_GLOBAL_ADAPTIVE

Successors and predecessors for LOAD_GLOBAL_ADAPTIVE

Predecessors	Count	Percentage
LOAD_FAST	2833	17.6%
POP_JUMP_FORWARD_IF_FALSE	2408	14.9%
STORE_FAST	2231	13.8%

Successors	Count	Percentage
LOAD_FAST	4048	25.1%
LOAD_GLOBAL_MODULE	2743	17.0%
LOAD_GLOBAL_BUILTIN	2187	13.6%

LOAD_GLOBAL_BUILTIN

Successors and predecessors for LOAD_GLOBAL_BUILTIN

Predecessors	Count	Percentage
STORE_FAST	7131323	29.3%
RESUME_QUICK	3738381	15.4%
LOAD_FAST	3173390	13.1%

Successors	Count	Percentage
LOAD_FAST	16828379	69.2%
PRECALL_NO_KW_ISINSTANCE	2913483	12.0%
LOAD_FAST__LOAD_CONST	1535367	6.3%

LOAD_GLOBAL_MODULE

Successors and predecessors for LOAD_GLOBAL_MODULE

Predecessors	Count	Percentage
STORE_FAST	2968473	16.6%
LOAD_FAST	2831964	15.8%
RESUME_QUICK	2595405	14.5%

Successors	Count	Percentage
LOAD_ATTR_MODULE	5536612	30.9%
LOAD_FAST	2422660	13.5%
LOAD_FAST__LOAD_FAST	2062417	11.5%

LOAD_METHOD

Successors and predecessors for LOAD_METHOD

Predecessors	Count	Percentage
LOAD_METHOD_WITH_DICT	284360	67.0%
LOAD_METHOD_WITH_VALUES	127191	30.0%
LOAD_FAST	6244	1.5%

Successors	Count	Percentage
PRECALL_PYFUNC	151226	35.7%
LOAD_FAST	132239	31.2%
PRECALL_ADAPTIVE	108713	25.6%

LOAD_METHOD_ADAPTIVE

Successors and predecessors for LOAD_METHOD_ADAPTIVE

Predecessors	Count	Percentage
LOAD_FAST	3259914	59.9%
LOAD_ATTR_MODULE	630122	11.6%
STORE_FAST__LOAD_FAST	465172	8.5%

Successors	Count	Percentage
LOAD_FAST	2663958	49.0%
PRECALL_NO_KW_METHOD_DESCRIPTOR_NOARGS	1312159	24.1%
LOAD_FAST__LOAD_FAST	389226	7.2%

LOAD_METHOD_CLASS

Successors and predecessors for LOAD_METHOD_CLASS

Predecessors	Count	Percentage
LOAD_FAST	176026	47.9%
STORE_FAST__LOAD_FAST	176025	47.9%
LOAD_GLOBAL_MODULE	15608	4.2%

Successors	Count	Percentage
LOAD_FAST__LOAD_CONST	352064	95.8%
LOAD_FAST__LOAD_FAST	15563	4.2%
LOAD_FAST	49	0.0%

LOAD_METHOD_MODULE

Successors and predecessors for LOAD_METHOD_MODULE

Predecessors	Count	Percentage
LOAD_ATTR_MODULE	81120	63.0%
LOAD_GLOBAL_MODULE	29551	22.9%
LOAD_FAST	15638	12.1%

Successors	Count	Percentage
LOAD_FAST	80713	62.6%
PRECALL_ADAPTIVE	19110	14.8%
PRECALL_PYFUNC	16582	12.9%

LOAD_METHOD_NO_DICT

Successors and predecessors for LOAD_METHOD_NO_DICT

Predecessors	Count	Percentage
LOAD_FAST	12444225	41.5%
LOAD_CONST__LOAD_FAST	6247711	20.8%
STORE_FAST__LOAD_FAST	4276628	14.3%

Successors	Count	Percentage
LOAD_CONST	11930215	39.8%
PRECALL_NO_KW_METHOD_DESCRIPTOR_NOARGS	9078910	30.3%
LOAD_FAST	5424774	18.1%

LOAD_METHOD_WITH_DICT

Successors and predecessors for LOAD_METHOD_WITH_DICT

Predecessors	Count	Percentage
LOAD_DEREF	161436	47.6%
LOAD_FAST	83266	24.5%
LOAD_ATTR_SLOT	36296	10.7%

Successors	Count	Percentage
LOAD_METHOD	284360	83.8%
PRECALL_NO_KW_METHOD_DESCRIPTOR_NOARGS	18024	5.3%
LOAD_GLOBAL_BUILTIN	15514	4.6%

LOAD_METHOD_WITH_VALUES

Successors and predecessors for LOAD_METHOD_WITH_VALUES

Predecessors	Count	Percentage
LOAD_FAST	4162408	54.6%
LOAD_ATTR_INSTANCE_VALUE	1520235	19.9%
STORE_FAST__LOAD_FAST	1077287	14.1%

Successors	Count	Percentage
LOAD_FAST	3288784	43.1%
PRECALL_PYFUNC	2066957	27.1%
LOAD_FAST__LOAD_FAST	799402	10.5%

LOAD_NAME

Successors and predecessors for LOAD_NAME

Predecessors	Count	Percentage
LOAD_CONST	11800	26.2%
LOAD_NAME	11342	25.2%
STORE_NAME	6212	13.8%

Successors	Count	Percentage
LOAD_NAME	11342	25.2%
LOAD_CONST	9504	21.1%
LOAD_ATTR	4597	10.2%

MAKE_CELL

Successors and predecessors for MAKE_CELL

Predecessors	Count	Percentage
MAKE_CELL	492331	63.0%
CALL_PY_EXACT_ARGS	254026	32.5%
CALL_ADAPTIVE	32802	4.2%

Successors	Count	Percentage
MAKE_CELL	492331	50.0%
RESUME_QUICK	310977	31.6%
RETURN_GENERATOR	179583	18.2%

MAKE_FUNCTION

Successors and predecessors for MAKE_FUNCTION

Predecessors	Count	Percentage
LOAD_CONST	1135324	99.8%
LOAD_FAST__LOAD_CONST	2090	0.2%

Successors	Count	Percentage
LOAD_FAST	346382	30.5%
LOAD_CONST	266276	23.4%
LOAD_GLOBAL_BUILTIN	121026	10.6%

MAP_ADD

Successors and predecessors for MAP_ADD

Predecessors	Count	Percentage
BINARY_SUBSCR_ADAPTIVE	3048345	43.7%
BINARY_SUBSCR_DICT	2928274	41.9%
LOAD_FAST	717169	10.3%

Successors	Count	Percentage
JUMP_BACKWARD_QUICK	6974476	99.9%
EXTENDED_ARG	4283	0.1%
LOAD_CONST	2119	0.0%

NOP

Successors and predecessors for NOP

Predecessors	Count	Percentage
RESUME_QUICK	951118	23.4%
STORE_FAST	714521	17.6%
POP_JUMP_FORWARD_IF_NONE	486128	11.9%

Successors	Count	Percentage
LOAD_FAST	2103455	51.7%
LOAD_GLOBAL_BUILTIN	641292	15.8%
LOAD_GLOBAL_MODULE	556341	13.7%

POP_EXCEPT

Successors and predecessors for POP_EXCEPT

Predecessors	Count	Percentage
STORE_ATTR_INSTANCE_VALUE	117575	44.6%
SWAP	75040	28.5%
COPY	62482	23.7%

Successors	Count	Percentage
LOAD_CONST	118765	45.1%
RETURN_VALUE	75040	28.5%
RERAISE	62482	23.7%

POP_JUMP_BACKWARD_IF_FALSE

Successors and predecessors for POP_JUMP_BACKWARD_IF_FALSE

Predecessors	Count	Percentage
CONTAINS_OP	6572006	88.7%
CALL_ADAPTIVE	783460	10.6%
STORE_FAST__LOAD_FAST	48408	0.7%

Successors	Count	Percentage
FOR_ITER	3714647	50.1%
LOAD_FAST	2980321	40.2%
LOAD_FAST__LOAD_CONST	715414	9.7%

POP_JUMP_BACKWARD_IF_NOT_NONE

Successors and predecessors for POP_JUMP_BACKWARD_IF_NOT_NONE

Predecessors	Count	Percentage
LOAD_ATTR_SLOT	88	67.7%
STORE_FAST__LOAD_FAST	32	24.6%
LOAD_FAST	10	7.7%

Successors	Count	Percentage
LOAD_FAST	127	97.7%
LOAD_FAST__LOAD_FAST	3	2.3%

POP_JUMP_BACKWARD_IF_TRUE

Successors and predecessors for POP_JUMP_BACKWARD_IF_TRUE

Predecessors	Count	Percentage
LOAD_ATTR_INSTANCE_VALUE	60024	48.1%
IS_OP	46779	37.5%
LOAD_FAST	15667	12.6%

Successors	Count	Percentage
LOAD_FAST	59644	47.8%
LOAD_GLOBAL_BUILTIN	47017	37.7%
LOAD_FAST__LOAD_CONST	15643	12.5%

POP_JUMP_FORWARD_IF_FALSE

Successors and predecessors for POP_JUMP_FORWARD_IF_FALSE

Predecessors	Count	Percentage
CONTAINS_OP	4046957	17.5%
LOAD_ATTR_INSTANCE_VALUE	3562294	15.4%
PRECALL_NO_KW_ISINSTANCE	3012359	13.0%

Successors	Count	Percentage
LOAD_FAST	11760602	50.8%
LOAD_CONST	3340696	14.4%
LOAD_GLOBAL_BUILTIN	1819106	7.9%

POP_JUMP_FORWARD_IF_NONE

Successors and predecessors for POP_JUMP_FORWARD_IF_NONE

Predecessors	Count	Percentage
STORE_FAST__LOAD_FAST	2090253	36.1%
LOAD_FAST	1676203	28.9%
LOAD_ATTR_INSTANCE_VALUE	1443185	24.9%

Successors	Count	Percentage
LOAD_FAST	3427048	59.2%
LOAD_DEREF	508194	8.8%
NOP	486128	8.4%

POP_JUMP_FORWARD_IF_NOT_NONE

Successors and predecessors for POP_JUMP_FORWARD_IF_NOT_NONE

Predecessors	Count	Percentage
LOAD_FAST	1879124	45.0%
STORE_FAST__LOAD_FAST	1441137	34.5%
LOAD_ATTR_INSTANCE_VALUE	411995	9.9%

Successors	Count	Percentage
LOAD_FAST	1525519	36.5%
LOAD_CONST	520942	12.5%
LOAD_GLOBAL_MODULE	469794	11.2%

POP_JUMP_FORWARD_IF_TRUE

Successors and predecessors for POP_JUMP_FORWARD_IF_TRUE

Predecessors	Count	Percentage
STORE_FAST__LOAD_FAST	1844772	22.7%
LOAD_FAST	1412688	17.4%
LOAD_ATTR_INSTANCE_VALUE	1111937	13.7%

Successors	Count	Percentage
LOAD_FAST	4200835	51.8%
LOAD_GLOBAL_BUILTIN	1303667	16.1%
LOAD_FAST__LOAD_FAST	1046477	12.9%

POP_TOP

Successors and predecessors for POP_TOP

Predecessors	Count	Percentage
RETURN_VALUE	4217343	38.7%
CALL_ADAPTIVE	1755434	16.1%
PRECALL_NO_KW_METHOD_DESCRIPTOR_O	1533674	14.1%

Successors	Count	Percentage
LOAD_FAST	3501986	24.8%
RESUME_QUICK	3208004	22.7%
LOAD_CONST	2986913	21.2%

PRECALL

Successors and predecessors for PRECALL

Predecessors	Count	Percentage
PRECALL_NO_KW_METHOD_DESCRIPTOR_NOARGS	107319	40.1%
PRECALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS	33708	12.6%
PRECALL_BOUND_METHOD	30661	11.5%

Successors	Count	Percentage
CALL_ADAPTIVE	225543	84.4%
CALL	41698	15.6%
CALL_PY_EXACT_ARGS	61	0.0%

PRECALL_ADAPTIVE

Successors and predecessors for PRECALL_ADAPTIVE

Predecessors	Count	Percentage
LOAD_FAST	3342074	23.2%
KW_NAMES	1879943	13.0%
LOAD_CONST	1558856	10.8%

Successors	Count	Percentage
CALL_ADAPTIVE	13720950	95.2%
PRECALL_ADAPTIVE	683425	4.7%
PRECALL_NO_KW_METHOD_DESCRIPTOR_NOARGS	2258	0.0%

PRECALL_BOUND_METHOD

Successors and predecessors for PRECALL_BOUND_METHOD

Predecessors	Count	Percentage
LOAD_FAST	836795	57.1%
KW_NAMES	137065	9.4%
LOAD_ATTR_SLOT	117344	8.0%

Successors	Count	Percentage
CALL_PY_EXACT_ARGS	1017481	69.5%
CALL_ADAPTIVE	224977	15.4%
CALL_PY_WITH_DEFAULTS	191614	13.1%

PRECALL_BUILTIN_CLASS

Successors and predecessors for PRECALL_BUILTIN_CLASS

Predecessors	Count	Percentage
PRECALL_NO_KW_METHOD_DESCRIPTOR_NOARGS	6266194	83.7%
LOAD_FAST	330761	4.4%
LOAD_GLOBAL_BUILTIN	283310	3.8%

Successors	Count	Percentage
LOAD_CONST	6350469	84.8%
RETURN_VALUE	298663	4.0%
LOAD_METHOD_ADAPTIVE	176912	2.4%

PRECALL_BUILTIN_FAST_WITH_KEYWORDS

Successors and predecessors for PRECALL_BUILTIN_FAST_WITH_KEYWORDS

Predecessors	Count	Percentage
LOAD_FAST	162853	40.5%
KW_NAMES	101411	25.2%
PRECALL_NO_KW_METHOD_DESCRIPTOR_NOARGS	63281	15.7%

Successors	Count	Percentage
STORE_FAST	115486	28.7%
RETURN_VALUE	97386	24.2%
GET_ITER	73648	18.3%

PRECALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS

Successors and predecessors for PRECALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS

Predecessors	Count	Percentage
LOAD_CONST	1015073	63.9%
LOAD_FAST	279389	17.6%
LOAD_METHOD_NO_DICT	94890	6.0%

Successors	Count	Percentage
STORE_FAST	371096	23.3%
POP_TOP	328517	20.7%
JUMP_FORWARD	264699	16.7%

PRECALL_NO_KW_BUILTIN_FAST

Successors and predecessors for PRECALL_NO_KW_BUILTIN_FAST

Predecessors	Count	Percentage
LOAD_FAST__LOAD_CONST	381556	34.8%
LOAD_CONST	354779	32.4%
LOAD_FAST	132595	12.1%

Successors	Count	Percentage
RETURN_VALUE	322621	29.4%
POP_JUMP_FORWARD_IF_TRUE	315509	28.8%
JUMP_IF_FALSE_OR_POP	255012	23.3%

PRECALL_NO_KW_BUILTIN_O

Successors and predecessors for PRECALL_NO_KW_BUILTIN_O

Predecessors	Count	Percentage
BUILD_TUPLE	400501	45.7%
LOAD_FAST	275614	31.4%
SEND	74126	8.5%

Successors	Count	Percentage
RETURN_VALUE	401878	45.8%
POP_TOP	313619	35.8%
STORE_FAST	77868	8.9%

PRECALL_NO_KW_ISINSTANCE

Successors and predecessors for PRECALL_NO_KW_ISINSTANCE

Predecessors	Count	Percentage
LOAD_GLOBAL_BUILTIN	2913483	71.3%
LOAD_GLOBAL_MODULE	788029	19.3%
BUILD_TUPLE	297623	7.3%

Successors	Count	Percentage
POP_JUMP_FORWARD_IF_FALSE	3012359	73.7%
POP_JUMP_FORWARD_IF_TRUE	985254	24.1%
STORE_FAST__LOAD_FAST	81542	2.0%

PRECALL_NO_KW_LEN

Successors and predecessors for PRECALL_NO_KW_LEN

Predecessors	Count	Percentage
LOAD_FAST	2471536	85.3%
LOAD_ATTR_INSTANCE_VALUE	243191	8.4%
BINARY_SUBSCR_LIST_INT	138583	4.8%

Successors	Count	Percentage
LOAD_CONST	1426087	49.2%
BUILD_TUPLE	248373	8.6%
BINARY_OP_SUBTRACT_INT	220479	7.6%

PRECALL_NO_KW_LIST_APPEND

Successors and predecessors for PRECALL_NO_KW_LIST_APPEND

Predecessors	Count	Percentage
LOAD_FAST	1517467	76.6%
BUILD_TUPLE	386311	19.5%
RETURN_VALUE	44389	2.2%

Successors	Count	Percentage
JUMP_BACKWARD_QUICK	1410424	71.2%
LOAD_FAST	273063	13.8%
LOAD_CONST	203958	10.3%

PRECALL_NO_KW_METHOD_DESCRIPTOR_FAST

Successors and predecessors for PRECALL_NO_KW_METHOD_DESCRIPTOR_FAST

Predecessors	Count	Percentage
LOAD_CONST	6629988	77.5%
LOAD_GLOBAL_MODULE	654784	7.7%
LOAD_FAST	368373	4.3%

Successors	Count	Percentage
FORMAT_VALUE	6216426	72.6%
STORE_FAST__LOAD_FAST	692583	8.1%
LIST_APPEND	589539	6.9%

PRECALL_NO_KW_METHOD_DESCRIPTOR_NOARGS

Successors and predecessors for PRECALL_NO_KW_METHOD_DESCRIPTOR_NOARGS

Predecessors	Count	Percentage
LOAD_METHOD_NO_DICT	9078910	86.7%
LOAD_METHOD_ADAPTIVE	1312159	12.5%
LOAD_METHOD_WITH_VALUES	50403	0.5%

Successors	Count	Percentage
PRECALL_BUILTIN_CLASS	6266194	59.8%
POP_JUMP_FORWARD_IF_FALSE	999350	9.5%
STORE_FAST__LOAD_FAST	906664	8.7%

PRECALL_NO_KW_METHOD_DESCRIPTOR_O

Successors and predecessors for PRECALL_NO_KW_METHOD_DESCRIPTOR_O

Predecessors	Count	Percentage
LOAD_CONST	3113806	54.7%
LOAD_FAST	1733409	30.4%
CALL_ADAPTIVE	374964	6.6%

Successors	Count	Percentage
UNPACK_SEQUENCE_TUPLE	3471351	61.0%
POP_TOP	1533674	26.9%
RETURN_VALUE	262708	4.6%

PRECALL_NO_KW_STR_1

Successors and predecessors for PRECALL_NO_KW_STR_1

Predecessors	Count	Percentage
LOAD_FAST	1048609	72.7%
PRECALL_NO_KW_LEN	202348	14.0%
RETURN_VALUE	117348	8.1%

Successors	Count	Percentage
BINARY_OP_ADD_UNICODE	293856	20.4%
LOAD_GLOBAL_BUILTIN	277166	19.2%
RETURN_VALUE	234870	16.3%

PRECALL_NO_KW_TUPLE_1

Successors and predecessors for PRECALL_NO_KW_TUPLE_1

Predecessors	Count	Percentage
LOAD_FAST	76746	90.2%
RETURN_GENERATOR	4195	4.9%
LOAD_GLOBAL_MODULE	990	1.2%

Successors	Count	Percentage
LOAD_FAST	76272	89.7%
RETURN_VALUE	2562	3.0%
STORE_FAST__LOAD_FAST	2027	2.4%

PRECALL_NO_KW_TYPE_1

Successors and predecessors for PRECALL_NO_KW_TYPE_1

Predecessors	Count	Percentage
LOAD_FAST	896552	83.1%
LOAD_CONST	181261	16.8%
LOAD_GLOBAL_MODULE	748	0.1%

Successors	Count	Percentage
LOAD_GLOBAL_MODULE	313035	29.0%
LOAD_FAST	238265	22.1%
BUILD_TUPLE	182462	16.9%

PRECALL_PYFUNC

Successors and predecessors for PRECALL_PYFUNC

Predecessors	Count	Percentage
LOAD_FAST	4811651	36.1%
LOAD_METHOD_WITH_VALUES	2066957	15.5%
KW_NAMES	1466927	11.0%

Successors	Count	Percentage
CALL_PY_EXACT_ARGS	10613002	79.7%
CALL_ADAPTIVE	2418286	18.2%
CALL_PY_WITH_DEFAULTS	282147	2.1%

PUSH_EXC_INFO

Successors and predecessors for PUSH_EXC_INFO

Predecessors	Count	Percentage
BINARY_OP_ADAPTIVE	117345	44.6%
BINARY_SUBSCR_DICT	63407	24.1%
RERAISE	61625	23.4%

Successors	Count	Percentage
LOAD_GLOBAL_BUILTIN	261595	99.3%
LOAD_CONST	447	0.2%
LOAD_GLOBAL_MODULE	387	0.1%

PUSH_NULL

Successors and predecessors for PUSH_NULL

Predecessors	Count	Percentage
STORE_FAST	664656	28.6%
RESUME_QUICK	515322	22.1%
NOP	278434	12.0%

Successors	Count	Percentage
LOAD_FAST	1011617	43.5%
LOAD_FAST__LOAD_FAST	624221	26.8%
LOAD_DEREF	618920	26.6%

RAISE_VARARGS

Successors and predecessors for RAISE_VARARGS

Predecessors	Count	Percentage
LOAD_CONST	61150	76.6%
CALL_ADAPTIVE	17782	22.3%
LOAD_FAST	464	0.6%

Successors	Count	Percentage
COPY	61294	79.0%
PUSH_EXC_INFO	16189	20.9%
LOAD_CONST	132	0.2%

RERAISE

Successors and predecessors for RERAISE

Predecessors	Count	Percentage
POP_EXCEPT	62482	98.2%
STORE_FAST	447	0.7%
POP_JUMP_FORWARD_IF_FALSE	358	0.6%

Successors	Count	Percentage
PUSH_EXC_INFO	61625	98.2%
COPY	1120	1.8%

RESUME

Successors and predecessors for RESUME

Predecessors	Count	Percentage
CALL	6128	51.2%
CALL_PY_EXACT_ARGS	1589	13.3%
COPY_FREE_VARS	1484	12.4%

Successors	Count	Percentage
LOAD_FAST	6774	33.9%
LOAD_GLOBAL	4576	22.9%
LOAD_NAME	2960	14.8%

RESUME_QUICK

Successors and predecessors for RESUME_QUICK

Predecessors	Count	Percentage
CALL_PY_EXACT_ARGS	9170604	55.9%
POP_TOP	3208004	19.6%
CALL_ADAPTIVE	1929784	11.8%

Successors	Count	Percentage
LOAD_FAST	15781801	48.9%
LOAD_GLOBAL_BUILTIN	3738381	11.6%
LOAD_FAST__LOAD_CONST	3344166	10.4%

RETURN_GENERATOR

Successors and predecessors for RETURN_GENERATOR

Predecessors	Count	Percentage
CALL_PY_EXACT_ARGS	1344655	55.3%
COPY_FREE_VARS	395105	16.2%
CALL_ADAPTIVE	319863	13.2%

Successors	Count	Percentage
GET_AWAITABLE	1698660	78.6%
PRECALL_ADAPTIVE	150609	7.0%
YIELD_VALUE	117526	5.4%

RETURN_VALUE

Successors and predecessors for RETURN_VALUE

Predecessors	Count	Percentage
LOAD_CONST	8999388	29.6%
LOAD_FAST	4775345	15.7%
BINARY_SUBSCR_TUPLE_INT	3167195	10.4%

Successors	Count	Percentage
POP_TOP	4217343	33.4%
STORE_FAST__LOAD_FAST	2243426	17.8%
STORE_FAST	1479269	11.7%

SEND

Successors and predecessors for SEND

Predecessors	Count	Percentage
LOAD_CONST	2978359	65.4%
JUMP_BACKWARD_NO_INTERRUPT	1572350	34.6%

Successors	Count	Percentage
YIELD_VALUE	1572814	34.6%
POP_TOP	1229997	27.0%
STORE_FAST__LOAD_FAST	468125	10.3%

SETUP_ANNOTATIONS

Successors and predecessors for SETUP_ANNOTATIONS

Predecessors	Count	Percentage
STORE_NAME	218	83.5%
RESUME	43	16.5%

Successors	Count	Percentage
LOAD_CONST	166	63.6%
LOAD_NAME	81	31.0%
PUSH_NULL	12	4.6%

SET_ADD

Successors and predecessors for SET_ADD

Predecessors	Count	Percentage
PRECALL_BUILTIN_CLASS	2793	83.3%
PRECALL_NO_KW_BUILTIN_O	234	7.0%
LOAD_FAST	141	4.2%

Successors	Count	Percentage
JUMP_BACKWARD_QUICK	3265	97.3%
JUMP_BACKWARD	89	2.7%

SET_UPDATE

Successors and predecessors for SET_UPDATE

Predecessors	Count	Percentage
LOAD_CONST	26	100.0%

Successors	Count	Percentage
STORE_NAME	14	53.8%
STORE_FAST	7	26.9%
PRECALL	3	11.5%

STORE_ATTR

Successors and predecessors for STORE_ATTR

Predecessors	Count	Percentage
STORE_ATTR_INSTANCE_VALUE	95124	86.9%
LOAD_FAST	9496	8.7%
STORE_ATTR_WITH_HINT	3480	3.2%

Successors	Count	Percentage
LOAD_FAST	73922	67.5%
LOAD_CONST	17879	16.3%
LOAD_CONST__LOAD_FAST	8093	7.4%

STORE_ATTR_ADAPTIVE

Successors and predecessors for STORE_ATTR_ADAPTIVE

Predecessors	Count	Percentage
LOAD_CONST__LOAD_FAST	323591	49.9%
LOAD_FAST__LOAD_FAST	156992	24.2%
LOAD_FAST	95786	14.8%

Successors	Count	Percentage
LOAD_DEREF	196459	30.3%
LOAD_CONST	132098	20.4%
LOAD_FAST	117594	18.2%

STORE_ATTR_INSTANCE_VALUE

Successors and predecessors for STORE_ATTR_INSTANCE_VALUE

Predecessors	Count	Percentage
LOAD_FAST__LOAD_FAST	3036626	34.5%
LOAD_CONST__LOAD_FAST	2609498	29.7%
LOAD_FAST	2510197	28.5%

Successors	Count	Percentage
LOAD_FAST	2713770	30.9%
LOAD_FAST__LOAD_FAST	1813385	20.6%
LOAD_CONST__LOAD_FAST	1641333	18.7%

STORE_ATTR_SLOT

Successors and predecessors for STORE_ATTR_SLOT

Predecessors	Count	Percentage
LOAD_FAST	707021	74.3%
LOAD_FAST__LOAD_FAST	124183	13.1%
LOAD_CONST__LOAD_FAST	119770	12.6%

Successors	Count	Percentage
LOAD_FAST	412994	43.4%
LOAD_CONST	237109	24.9%
BUILD_MAP	176027	18.5%

STORE_ATTR_WITH_HINT

Successors and predecessors for STORE_ATTR_WITH_HINT

Predecessors	Count	Percentage
LOAD_FAST	119727	99.1%
LOAD_CONST__LOAD_FAST	806	0.7%
LOAD_FAST__LOAD_FAST	194	0.2%

Successors	Count	Percentage
LOAD_FAST	117336	97.1%
STORE_ATTR	3480	2.9%
LOAD_CONST__LOAD_FAST	3	0.0%

STORE_DEREF

Successors and predecessors for STORE_DEREF

Predecessors	Count	Percentage
BINARY_OP_ADD_INT	390327	47.8%
LOAD_CONST	250002	30.6%
CALL_ADAPTIVE	77575	9.5%

Successors	Count	Percentage
LOAD_DEREF	258213	31.6%
LOAD_CONST	217790	26.7%
LOAD_FAST__LOAD_FAST	195420	23.9%

STORE_FAST

Successors and predecessors for STORE_FAST

Predecessors	Count	Percentage
FOR_ITER	14201160	63.7%
RETURN_VALUE	1479269	6.6%
CALL_ADAPTIVE	1478685	6.6%

Successors	Count	Percentage
LOAD_DEREF	7220517	32.4%
LOAD_GLOBAL_BUILTIN	7131323	32.0%
LOAD_GLOBAL_MODULE	2968473	13.3%

STORE_FAST__LOAD_FAST

Successors and predecessors for STORE_FAST__LOAD_FAST

Predecessors	Count	Percentage
FOR_ITER	19293662	51.0%
STORE_FAST__STORE_FAST	3386280	8.9%
CALL_ADAPTIVE	3354093	8.9%

Successors	Count	Percentage
LOAD_DEREF	6643555	17.6%
LIST_APPEND	6584426	17.4%
LOAD_CONST	4835678	12.8%

STORE_FAST__STORE_FAST

Successors and predecessors for STORE_FAST__STORE_FAST

Predecessors	Count	Percentage
UNPACK_SEQUENCE_TWO_TUPLE	6381582	60.7%
UNPACK_SEQUENCE_TUPLE	3616347	34.4%
COPY	287404	2.7%

Successors	Count	Percentage
LOAD_FAST	5081694	48.3%
STORE_FAST__LOAD_FAST	3386280	32.2%
LOAD_FAST__LOAD_FAST	809451	7.7%

STORE_GLOBAL

Successors and predecessors for STORE_GLOBAL

Predecessors	Count	Percentage
LOAD_CONST	73	37.8%
JUMP_IF_TRUE_OR_POP	54	28.0%
CALL	15	7.8%

Successors	Count	Percentage
LOAD_CONST	77	39.9%
LOAD_GLOBAL_MODULE	40	20.7%
LOAD_GLOBAL	33	17.1%

STORE_NAME

Successors and predecessors for STORE_NAME

Predecessors	Count	Percentage
MAKE_FUNCTION	15426	32.1%
LOAD_CONST	7968	16.6%
IMPORT_FROM	6123	12.7%

Successors	Count	Percentage
LOAD_CONST	26587	55.4%
LOAD_NAME	6212	12.9%
PUSH_NULL	5256	10.9%

STORE_SUBSCR

Successors and predecessors for STORE_SUBSCR

Predecessors	Count	Percentage
LOAD_CONST	1287	56.6%
LOAD_FAST	526	23.1%
LOAD_ATTR	128	5.6%

Successors	Count	Percentage
LOAD_CONST	700	30.8%
LOAD_FAST	455	20.0%
LOAD_NAME	303	13.3%

STORE_SUBSCR_ADAPTIVE

Successors and predecessors for STORE_SUBSCR_ADAPTIVE

Predecessors	Count	Percentage
LOAD_FAST	148452	52.5%
LOAD_ATTR_MODULE	117348	41.5%
SWAP	10909	3.9%

Successors	Count	Percentage
JUMP_BACKWARD_QUICK	149361	52.9%
LOAD_CONST	59497	21.1%
LOAD_FAST	58994	20.9%

STORE_SUBSCR_DICT

Successors and predecessors for STORE_SUBSCR_DICT

Predecessors	Count	Percentage
LOAD_FAST__LOAD_FAST	474537	28.1%
BINARY_SUBSCR_DICT	442635	26.2%
LOAD_FAST	291665	17.3%

Successors	Count	Percentage
LOAD_FAST	878739	52.0%
LOAD_FAST__LOAD_FAST	473883	28.1%
JUMP_BACKWARD_QUICK	100561	6.0%

STORE_SUBSCR_LIST_INT

Successors and predecessors for STORE_SUBSCR_LIST_INT

Predecessors	Count	Percentage
LOAD_FAST__LOAD_FAST	3507	77.6%
LOAD_FAST	694	15.4%
LOAD_NAME	221	4.9%

Successors	Count	Percentage
JUMP_BACKWARD_QUICK	2072	45.9%
EXTENDED_ARG_QUICK	1367	30.3%
LOAD_CONST	524	11.6%

SWAP

Successors and predecessors for SWAP

Predecessors	Count	Percentage
LOAD_CONST__LOAD_FAST	410858	32.9%
BINARY_OP_ADD_INT	405140	32.5%
BINARY_OP_SUBTRACT_INT	135060	10.8%

Successors	Count	Percentage
STORE_ATTR_INSTANCE_VALUE	560289	44.9%
COPY	413031	33.1%
POP_EXCEPT	75040	6.0%

UNARY_INVERT

Successors and predecessors for UNARY_INVERT

Predecessors	Count	Percentage
LOAD_FAST	682	98.0%
LOAD_FAST__LOAD_FAST	8	1.1%
CALL	6	0.9%

Successors	Count	Percentage
BINARY_OP_ADAPTIVE	647	93.0%
BINARY_OP	28	4.0%
LOAD_CONST	13	1.9%

UNARY_NEGATIVE

Successors and predecessors for UNARY_NEGATIVE

Predecessors	Count	Percentage
LOAD_GLOBAL_MODULE	15522	94.8%
STORE_FAST__LOAD_FAST	279	1.7%
LOAD_CONST__LOAD_FAST	279	1.7%

Successors	Count	Percentage
LOAD_CONST	15831	96.7%
STORE_FAST	280	1.7%
PRECALL_BUILTIN_CLASS	135	0.8%

UNARY_NOT

Successors and predecessors for UNARY_NOT

Predecessors	Count	Percentage
LOAD_FAST	60045	50.1%
CALL_ADAPTIVE	58703	49.0%
PRECALL_NO_KW_ISINSTANCE	572	0.5%

Successors	Count	Percentage
RETURN_VALUE	58739	49.0%
LOAD_FAST__LOAD_FAST	58669	48.9%
JUMP_IF_FALSE_OR_POP	1227	1.0%

UNARY_POSITIVE

Successors and predecessors for UNARY_POSITIVE

Predecessors	Count	Percentage
LOAD_ATTR	10	100.0%

Successors	Count	Percentage
BUILD_TUPLE	4	40.0%
PRECALL	3	30.0%
LOAD_GLOBAL	3	30.0%

UNPACK_SEQUENCE

Successors and predecessors for UNPACK_SEQUENCE

Predecessors	Count	Percentage
FOR_ITER	949	54.7%
RETURN_VALUE	395	22.8%
CALL	243	14.0%

Successors	Count	Percentage
STORE_FAST	1562	90.1%
STORE_NAME	99	5.7%
LOAD_FAST	40	2.3%

UNPACK_SEQUENCE_ADAPTIVE

Successors and predecessors for UNPACK_SEQUENCE_ADAPTIVE

Predecessors	Count	Percentage
FOR_ITER	160	40.9%
RETURN_VALUE	110	28.1%
RETURN_GENERATOR	33	8.4%

Successors	Count	Percentage
UNPACK_SEQUENCE_TWO_TUPLE	245	62.7%
UNPACK_SEQUENCE_TUPLE	55	14.1%
STORE_FAST__STORE_FAST	34	8.7%

UNPACK_SEQUENCE_LIST

Successors and predecessors for UNPACK_SEQUENCE_LIST

Predecessors	Count	Percentage
PRECALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS	54544	63.4%
SEND	31038	36.1%
BINARY_SUBSCR_ADAPTIVE	334	0.4%

Successors	Count	Percentage
STORE_FAST__STORE_FAST	86007	99.9%
STORE_DEREF	33	0.0%
STORE_FAST	12	0.0%

UNPACK_SEQUENCE_TUPLE

Successors and predecessors for UNPACK_SEQUENCE_TUPLE

Predecessors	Count	Percentage
PRECALL_NO_KW_METHOD_DESCRIPTOR_O	3471351	96.0%
RETURN_VALUE	67290	1.9%
CALL_ADAPTIVE	59302	1.6%

Successors	Count	Percentage
STORE_FAST__STORE_FAST	3616347	100.0%
STORE_DEREF	52	0.0%
LOAD_FAST	39	0.0%

UNPACK_SEQUENCE_TWO_TUPLE

Successors and predecessors for UNPACK_SEQUENCE_TWO_TUPLE

Predecessors	Count	Percentage
FOR_ITER	5869497	91.9%
RETURN_VALUE	335105	5.2%
SEND	58995	0.9%

Successors	Count	Percentage
STORE_FAST__STORE_FAST	6381582	99.9%
STORE_FAST	3521	0.1%
STORE_NAME	630	0.0%

WITH_EXCEPT_START

Successors and predecessors for WITH_EXCEPT_START

Predecessors	Count	Percentage
PUSH_EXC_INFO	212	100.0%

Successors	Count	Percentage
POP_JUMP_FORWARD_IF_TRUE	146	68.9%
COPY	66	31.1%

YIELD_VALUE

Successors and predecessors for YIELD_VALUE

Predecessors	Count	Percentage
SEND	1572814	86.7%
RETURN_GENERATOR	117526	6.5%
BINARY_OP_ADAPTIVE	66036	3.6%

Successors	Count	Percentage

Specialization stats

specialization stats by family

BINARY_SUBSCR

specialization stats for BINARY_SUBSCR family

Kind	Count	Ratio
unquickened	48057	0.2%
specialization.deferred	6220989	22.8%
specialization.deopt	734	0.0%
hit	20928172	76.8%
miss	39312	0.1%

Specialization attempts

	Count	Ratio
Success	1245	27.9%
Failure	3210	72.1%

Failure kind	Count	Ratio
buffer int	1060	33.0%
string slice	780	24.3%
string int	417	13.0%
list slice	293	9.1%
other	266	8.3%
buffer slice	156	4.9%
tuple slice	154	4.8%
array slice	58	1.8%
sequence int	26	0.8%

STORE_SUBSCR

specialization stats for STORE_SUBSCR family

Kind	Count	Ratio
unquickened	2274	0.1%
specialization.deferred	281901	14.3%
hit	1693448	85.6%

Specialization attempts

	Count	Ratio
Success	353	52.7%
Failure	317	47.3%

Failure kind	Count	Ratio
other	114	36.0%
bytearray int	112	35.3%
py simple	46	14.5%
dict subclass no override	28	8.8%
list slice	10	3.2%
out of range	7	2.2%

UNPACK_SEQUENCE

specialization stats for UNPACK_SEQUENCE family

Kind	Count	Ratio
unquickened	1734	0.0%
specialization.deferred	67	0.0%
hit	10088708	100.0%

Specialization attempts

	Count	Ratio
Success	314	96.9%
Failure	10	3.1%

Failure kind	Count	Ratio
sequence	5	50.0%
iterator	5	50.0%

FOR_ITER

specialization stats for FOR_ITER family

Kind	Count	Ratio
unquickened	42738132	100.0%

Specialization attempts

	Count	Ratio
Success	0	0.0%
Failure	42738132	100.0%

Failure kind	Count	Ratio
list	33545007	78.5%
enumerate	2946553	6.9%
dict items	2694300	6.3%
tuple	1408632	3.3%
range	1300536	3.0%
other	709183	1.7%
dict values	65949	0.2%
generator	60175	0.1%
set	3914	0.0%
dict keys	2235	0.0%
itertools	1405	0.0%
bytes	217	0.0%
string	26	0.0%

STORE_ATTR

specialization stats for STORE_ATTR family

Kind	Count	Ratio
unquickened	109519	1.0%
specialization.deferred	643773	6.1%
specialization.deopt	1795	0.0%
hit	9767523	92.0%
miss	99456	0.9%

Specialization attempts

	Count	Ratio
Success	2843	69.8%
Failure	1232	30.2%

Failure kind	Count	Ratio
overridden	404	32.8%
not managed dict	287	23.3%
out of range	253	20.5%
overriding descriptor	156	12.7%
non object slot	100	8.1%
mutable class	21	1.7%
method	8	0.6%
property	3	0.2%

LOAD_ATTR

specialization stats for LOAD_ATTR family

Kind	Count	Ratio
unquickened	298852	0.5%
specialization.deferred	13523254	20.9%
specialization.deopt	5037	0.0%
hit	50740305	78.3%
miss	272608	0.4%

Specialization attempts

	Count	Ratio
Success	7523	43.2%
Failure	9873	56.8%

Failure kind	Count	Ratio
overridden	2890	29.3%
property	2592	26.3%
overriding descriptor	1712	17.3%
method	1047	10.6%
out of range	641	6.5%
non object slot	495	5.0%
not managed dict	298	3.0%
mutable class	148	1.5%
module attr not found	50	0.5%

COMPARE_OP

specialization stats for COMPARE_OP family

Kind	Count	Ratio
unquickened	6950	0.1%
specialization.deferred	2400467	24.7%
specialization.deopt	54	0.0%
hit	7292063	75.2%
miss	2924	0.0%

Specialization attempts

	Count	Ratio
Success	541	23.7%
Failure	1741	76.3%

Failure kind	Count	Ratio
not followed by cond jump	584	33.5%
different types	296	17.0%
float long	195	11.2%
baseobject	152	8.7%
bytes	149	8.6%
other	136	7.8%
big int	120	6.9%
tuple	54	3.1%
list	27	1.6%
set	14	0.8%
bool	8	0.5%
long float	6	0.3%

LOAD_GLOBAL

specialization stats for LOAD_GLOBAL family

Kind	Count	Ratio
unquickened	55783	0.1%
specialization.deferred	11248	0.0%
specialization.deopt	403	0.0%
hit	42212856	99.8%
miss	28288	0.1%

Specialization attempts

	Count	Ratio
Success	4889	100.0%
Failure	0	0.0%

Failure kind	Count	Ratio

BINARY_OP

specialization stats for BINARY_OP family

Kind	Count	Ratio
unquickened	4177	0.1%
specialization.deferred	823745	18.9%
specialization.deopt	3	0.0%
hit	3539617	81.0%
miss	217	0.0%

Specialization attempts

	Count	Ratio
Success	455	21.2%
Failure	1694	78.8%

Failure kind	Count	Ratio
and int	460	27.2%
add other	415	24.5%
remainder	195	11.5%
multiply different types	148	8.7%
or	137	8.1%
add different types	80	4.7%
true divide other	68	4.0%
xor	50	3.0%
subtract different types	38	2.2%
floor divide	29	1.7%
lshift	14	0.8%
and different types	14	0.8%
rshift	13	0.8%
power	13	0.8%
and other	8	0.5%
subtract other	7	0.4%
true divide different types	5	0.3%

LOAD_METHOD

specialization stats for LOAD_METHOD family

Kind	Count	Ratio
unquickened	424109	1.0%
specialization.deferred	5428918	12.2%
specialization.deopt	7738	0.0%
hit	38055405	85.9%
miss	411657	0.9%

Specialization attempts

	Count	Ratio
Success	9478	75.0%
Failure	3151	25.0%

Failure kind	Count	Ratio
overridden	941	29.9%
no dict	824	26.2%
instance attribute	372	11.8%
class method obj	343	10.9%
metaclass attribute	282	8.9%
builtin class method	141	4.5%
non overriding descriptor	98	3.1%
not descriptor	90	2.9%
mutable class	22	0.7%
object slot	14	0.4%
other	12	0.4%
out of range	10	0.3%
is attr	2	0.1%

PRECALL

specialization stats for PRECALL family

Kind	Count	Ratio
unquickened	267302	0.3%
specialization.deferred	13721001	17.9%
specialization.deopt	4247	0.0%
hit	62302860	81.4%
miss	225604	0.3%

Specialization attempts

	Count	Ratio
Success	8914	1.3%
Failure	683425	98.7%

Failure kind	Count	Ratio
class no vectorcall	132442	19.4%
class mutable	97455	14.3%
pycfunction with keywords	88849	13.0%
pycfunction	83065	12.2%
other	81824	12.0%
pycfunction noargs	63211	9.2%
python class	61684	9.0%
operator wrapper	37993	5.6%
bad call flags	24367	3.6%
kwnames	6961	1.0%
method wrapper	5561	0.8%
cmethod	10	0.0%
str	3	0.0%

CALL

specialization stats for CALL family

Kind	Count	Ratio
unquickened	758307	2.6%
specialization.deferred	16574783	56.3%
specialization.deopt	13426	0.0%
hit	11402720	38.7%
miss	716609	2.4%

Specialization attempts

	Count	Ratio
Success	14973	56.6%
Failure	11501	43.4%

Failure kind	Count	Ratio
method descriptor	3048	26.5%
class	2208	19.2%
pycfunction	1624	14.1%
python class	1249	10.9%
kwnames	1111	9.7%
complex parameters	853	7.4%
other	649	5.6%
operator wrapper	291	2.5%
bound method	228	2.0%
method wrapper	220	1.9%
cmethod	20	0.2%

Specialization effectiveness

specialization effectiveness

Instructions	Count	Ratio
Basic	531008453	55.1%
Not specialized	106909699	11.1%
Specialized	326489980	33.9%

Call stats

Inlined calls and frame stats

	Count	Ratio
Calls to PyEval_EvalDefault	20601310	58.1%
Calls to Python functions inlined	14876343	41.9%
Frames pushed	30454247	85.8%
Frame objects created	479291	1.4%

Object stats

allocations, frees and dict materializatons

	Count	Ratio
Allocations from freelist	55374137
Frees to freelist	55470720
Allocations	124870061
Allocations to 512 bytes	123627147
Allocations to 4 kbytes	1120430
Allocations over 4 kbytes	122484
Frees	121367657
New values	792759
Materialize dict (on request)	19421	2.4%
Materialize dict (new key)	58766	7.4%
Materialize dict (too big)	0	0.0%
Materialize dict (str subclass)	0	0.0%

---

Stats gathered on: 2022-10-31

[markshannon]

We should gather these results somewhere. Presumably in the stats/ folder