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executor: fix unreasonable CPU time in HashJoin probe phash (#41265) #41291

Merged
merged 3 commits into from
Feb 11, 2023
Merged

executor: fix unreasonable CPU time in HashJoin probe phash (#41265) #41291

merged 3 commits into from
Feb 11, 2023

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This is an automated cherry-pick of #41265

What problem does this PR solve?

Issue Number: close #41263

Problem Summary:

What is changed and how it works?

Fix the regression caused by #41081

Check List

Tests

  • Unit test
  • Integration test
  • Manual test (add detailed scripts or steps below)
Before PR 41081:
BenchmarkHashJoinExec
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0_1],_disk:false)
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0_1],_disk:false)-32         	       2	 638092875 ns/op
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0],_disk:false)
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0],_disk:false)-32           	      16	  64674572 ns/op
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0],_disk:true)
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0],_disk:true)-32            	       2	 534752048 ns/op
BenchmarkHashJoinExec/(rows:5,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0],_disk:false)
BenchmarkHashJoinExec/(rows:5,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0],_disk:false)-32                       	   27391	     48713 ns/op
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0_1],_disk:false)
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0_1],_disk:false)-32                	      66	  17792798 ns/op
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0],_disk:false)
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0],_disk:false)-32                  	      79	  15881121 ns/op
PASS

Master:
BenchmarkHashJoinExec
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0_1],_disk:false)
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0_1],_disk:false)-32         	       2	 642957092 ns/op
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0],_disk:false)
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0],_disk:false)-32           	      14	  72674317 ns/op
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0],_disk:true)
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0],_disk:true)-32            	       2	 540769374 ns/op
BenchmarkHashJoinExec/(rows:5,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0],_disk:false)
BenchmarkHashJoinExec/(rows:5,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0],_disk:false)-32                       	   24026	     52469 ns/op
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0_1],_disk:false)
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0_1],_disk:false)-32                	      25	  48275854 ns/op
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0],_disk:false)
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0],_disk:false)-32                  	      24	  46435713 ns/op
PASS

After This PR:
BenchmarkHashJoinExec
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0_1],_disk:false)
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0_1],_disk:false)-32         	       2	 624429226 ns/op
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0],_disk:false)
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0],_disk:false)-32           	      16	  64781758 ns/op
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0],_disk:true)
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_var_string(5)],_concurency:4,_joinKeyIdx:_[0],_disk:true)-32            	       2	 536424771 ns/op
BenchmarkHashJoinExec/(rows:5,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0],_disk:false)
BenchmarkHashJoinExec/(rows:5,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0],_disk:false)-32                       	   26091	     49160 ns/op
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0_1],_disk:false)
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0_1],_disk:false)-32                	      66	  18142143 ns/op
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0],_disk:false)
BenchmarkHashJoinExec/(rows:100000,_cols:[bigint(20)_double],_concurency:4,_joinKeyIdx:_[0],_disk:false)-32                  	      79	  15681714 ns/op
PASS
  • No code

Side effects

  • Performance regression: Consumes more CPU
  • Performance regression: Consumes more Memory
  • Breaking backward compatibility

Documentation

  • Affects user behaviors
  • Contains syntax changes
  • Contains variable changes
  • Contains experimental features
  • Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

@ti-chi-bot ti-chi-bot mentioned this pull request Feb 10, 2023
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ti-chi-bot commented Feb 10, 2023 •
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[REVIEW NOTIFICATION]

This pull request has been approved by:

  • guo-shaoge
  • wshwsh12

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@ti-chi-bot ti-chi-bot added release-note-none Denotes a PR that doesn't merit a release note. do-not-merge/cherry-pick-not-approved size/S Denotes a PR that changes 10-29 lines, ignoring generated files. type/bugfix This PR fixes a bug. type/cherry-pick-for-release-6.6 labels Feb 10, 2023
@ti-chi-bot ti-chi-bot added the status/LGT1 Indicates that a PR has LGTM 1. label Feb 10, 2023
@sre-bot sre-bot added the cherry-pick-approved Cherry pick PR approved by release team. label Feb 11, 2023
@ti-chi-bot ti-chi-bot added status/LGT2 Indicates that a PR has LGTM 2. and removed status/LGT1 Indicates that a PR has LGTM 1. labels Feb 11, 2023
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/merge

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This pull request has been accepted and is ready to merge.

Commit hash: ba7f2aa

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Feb 11, 2023
@ti-chi-bot ti-chi-bot merged commit 8e794e4 into pingcap:release-6.6 Feb 11, 2023
iosmanthus pushed a commit to iosmanthus/tidb that referenced this pull request Feb 28, 2023
@ti-chi-bot @iosmanthus
executor: fix unreasonable CPU time in HashJoin probe phash (pingcap#…
5a620f9 
…41265) (pingcap#41291)

close pingcap#41263
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@guo-shaoge guo-shaoge guo-shaoge approved these changes

@wshwsh12 wshwsh12 wshwsh12 approved these changes

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