Update github.com/prometheus/procfs dependency #572
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
|
Needs rebase after XFS collector update. |
|
Ahh, sorry, I messed up the rebase, will fix it. |
SuperQ
force-pushed
the
grobie/update-procfs
branch
from
f2d12ba to
d857581
Compare
oblitorum
pushed a commit
to shatteredsilicon/node_exporter
that referenced
this pull request
Apr 9, 2024
tamcore
pushed a commit
to gitgrave/node_exporter
that referenced
this pull request
Oct 22, 2024
In our project we need to parse proc maps pretty frequently and we've noticed that there are lots of small allocations coming from parsing the device and addresses from procfs' maps file. The rough split of memory allocated is: - bufio.(*Scanner).Text: 25% - strings.Split: 50% - string.Fields: 25% The two callers of strings.Split are the two parsing functions that we are optimising here. I've added some benchmarks to show the improvements. Before ====== ``` $ go test -benchmem -run=^$ -bench ^BenchmarkParse.*$ github.com/prometheus/procfs goos: linux goarch: amd64 pkg: github.com/prometheus/procfs cpu: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz BenchmarkParseAddress-12 12218004 123.0 ns/op 32 B/op 1 allocs/op BenchmarkParseDevice-12 15074881 85.11 ns/op 32 B/op 1 allocs/op PASS ok github.com/prometheus/procfs 2.978s ``` After ===== ``` $ go test -benchmem -run=^$ -bench ^BenchmarkParse.*$ github.com/prometheus/procfs goos: linux goarch: amd64 pkg: github.com/prometheus/procfs cpu: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz BenchmarkParseAddress-12 28619314 50.45 ns/op 0 B/op 0 allocs/op BenchmarkParseDevice-12 49721935 29.66 ns/op 0 B/op 0 allocs/op PASS ok github.com/prometheus/procfs 2.991s ``` Signed-off-by: Francisco Javier Honduvilla Coto <javierhonduco@gmail.com> Co-authored-by: Ben Kochie <superq@gmail.com>
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Fix #571
@mdlayher @SuperQ