filter: replace region.Clone in filter (#2794) #2801
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plz resolve the conflict. |
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Signed-off-by: Song Gao <disxiaofei@163.com>
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Codecov Report
@@ Coverage Diff @@
## release-4.0 #2801 +/- ##
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Coverage 77.46% 77.47%
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Files 206 206
Lines 22652 22674 +22
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+ Hits 17547 17566 +19
- Misses 3789 3790 +1
- Partials 1316 1318 +2
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cherry-pick #2794 to release-4.0
Signed-off-by: Song Gao disxiaofei@163.com
What problem does this PR solve?
ref #2783
region.Clone consumes too much cpu resources.
What is changed and how it works?
replace region.Clone with a self-maintained clone function as FitRegion only need partial information of a region.
BenchmarkCloneRegionTest is using new clone method and BenchmarkCloneRegionTest2 is using region.Clone
$ go test -bench=. -run=none goos: darwin goarch: amd64 pkg: github.com/tikv/pd/server/schedule/filter BenchmarkCloneRegionTest-4 4356267 267 ns/op BenchmarkCloneRegionTest2-4 316604 3292 ns/op PASS ok github.com/tikv/pd/server/schedule/filter 2.555sCheck List
Tests
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Release note