Feature/arena allocator

[Shylock-Hg]

What type of PR is this?

• bug
• feature
• enhancement

What problem(s) does this PR solve?

Issue(s) number:

Description:

Sub job of #4122

How do you solve it?

Special notes for your reviewer, ex. impact of this fix, design document, etc:

Checklist:

Tests:

• Unit test(positive and negative cases)
• Function test
• Performance test
• N/A

Affects:

• Documentation affected (Please add the label if documentation needs to be modified.)
• Incompatibility (If it breaks the compatibility, please describe it and add the label.）
• If it's needed to cherry-pick (If cherry-pick to some branches is required, please label the destination version(s).)
• Performance impacted: Consumes more CPU/Memory

Release notes:

Please confirm whether to be reflected in release notes and how to describe:

ex. Fixed the bug .....

[codecov-commenter]

Codecov Report

Merging #4239 (88ec217) into master (326b856) will decrease coverage by 0.02%.
The diff coverage is 91.15%.

@@            Coverage Diff             @@
##           master    #4239      +/-   ##
==========================================
- Coverage   84.99%   84.96%   -0.03%     
==========================================
  Files        1326     1328       +2     
  Lines      131713   131866     +153     
==========================================
+ Hits       111946   112040      +94     
- Misses      19767    19826      +59     

Impacted Files	Coverage Δ
src/graph/optimizer/OptGroup.h	100.00% <ø> (ø)
src/graph/planner/match/MatchSolver.cpp	49.46% <0.00%> (ø)
src/storage/exec/IndexVertexScanNode.h	100.00% <ø> (ø)
src/storage/index/LookupProcessor.h	100.00% <ø> (ø)
src/common/expression/TextSearchExpression.h	56.89% <62.50%> (-2.04%)	⬇️
src/graph/planner/plan/Admin.h	66.74% <62.96%> (ø)
src/graph/executor/Executor.cpp	81.23% <80.64%> (ø)
src/storage/index/LookupProcessor.cpp	89.03% <88.88%> (-0.29%)	⬇️
src/graph/planner/plan/Maintain.h	88.54% <90.47%> (ø)
src/common/base/Arena.cpp	95.00% <95.00%> (ø)
... and 104 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 1fd89af...88ec217. Read the comment docs.

[CPWstatic]

Do we really need Arena like this for Expression objects?
Emmm, i'm curious about the performance of parser, would you please do some benchmark for it? It might improves it.

[Shylock-Hg]

Do we really need Arena like this for Expression objects? Emmm, i'm curious about the performance of parser, would you please do some benchmark for it? It might improves it.

There is benchmark, https://github.com/vesoft-inc/nebula/pull/4239/files#diff-3a4f05d31dbd51dad5408e11f426aea11f5ab1548fb2a65f6143bcda77dee8f3

[CPWstatic]

Goog job! We should also update the parser benchmarks.

[Shylock-Hg]

Benchmark of origin:

============================================================================
/home/shylock.huang/nebula-tmp2/src/parser/test/ParserBenchmark.cpprelative  time/iter  iters/s
============================================================================
SimpleQuery(1_thread)                                        1.20us  836.34K
SimpleQuery(2_thread)                             96.66%     1.24us  808.44K
SimpleQuery(4_thread)                             94.08%     1.27us  786.79K
SimpleQuery(8_thread)                             94.90%     1.26us  793.64K
SimpleQuery(16_thread)                            95.07%     1.26us  795.14K
SimpleQuery(32_thread)                            66.19%     1.81us  553.59K
SimpleQuery(48_thread)                            47.52%     2.52us  397.44K
----------------------------------------------------------------------------
ComplexQuery(1_thread)                                       8.61us  116.12K
ComplexQuery(2_thread)                            97.47%     8.84us  113.18K
ComplexQuery(4_thread)                            95.44%     9.02us  110.83K
ComplexQuery(8_thread)                            97.86%     8.80us  113.64K
ComplexQuery(16_thread)                           98.14%     8.78us  113.96K
ComplexQuery(32_thread)                           95.71%     9.00us  111.14K
ComplexQuery(48_thread)                           60.94%    14.13us   70.76K
----------------------------------------------------------------------------
MatchConflictQuery(1_thread)                                 3.65us  274.17K
MatchConflictQuery(2_thread)                      96.74%     3.77us  265.23K
MatchConflictQuery(4_thread)                      94.19%     3.87us  258.25K
MatchConflictQuery(8_thread)                      93.17%     3.91us  255.45K
MatchConflictQuery(16_thread)                     94.70%     3.85us  259.64K
MatchConflictQuery(32_thread)                     91.22%     4.00us  250.10K
MatchConflictQuery(48_thread)                     57.08%     6.39us  156.50K
============================================================================

Benchmark of current:

============================================================================
/home/shylock.huang/nebula-tmp/src/parser/test/ParserBenchmark.cpprelative  time/iter  iters/s
============================================================================
SimpleQuery(1_thread)                                        1.07us  931.55K
SimpleQuery(2_thread)                             98.63%     1.09us  918.82K
SimpleQuery(4_thread)                             97.50%     1.10us  908.26K
SimpleQuery(8_thread)                             96.84%     1.11us  902.09K
SimpleQuery(16_thread)                            93.79%     1.14us  873.73K
SimpleQuery(32_thread)                            65.51%     1.64us  610.22K
SimpleQuery(48_thread)                            41.94%     2.56us  390.73K
----------------------------------------------------------------------------
ComplexQuery(1_thread)                                       8.34us  119.88K
ComplexQuery(2_thread)                            98.58%     8.46us  118.18K
ComplexQuery(4_thread)                            96.30%     8.66us  115.45K
ComplexQuery(8_thread)                            92.82%     8.99us  111.27K
ComplexQuery(16_thread)                           93.72%     8.90us  112.36K
ComplexQuery(32_thread)                           94.08%     8.87us  112.78K
ComplexQuery(48_thread)                           59.36%    14.05us   71.16K
----------------------------------------------------------------------------
MatchConflictQuery(1_thread)                                 3.83us  261.02K
MatchConflictQuery(2_thread)                      97.54%     3.93us  254.61K
MatchConflictQuery(4_thread)                      99.23%     3.86us  259.00K
MatchConflictQuery(8_thread)                      96.97%     3.95us  253.10K
MatchConflictQuery(16_thread)                     96.94%     3.95us  253.03K
MatchConflictQuery(32_thread)                     91.72%     4.18us  239.40K
MatchConflictQuery(48_thread)                     57.47%     6.67us  150.01K
============================================================================