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optimize: use bits.Len64 instead of bsr #128

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Hchenn wants to merge 1 commit into bytedance:develop from Hchenn:opt/mcache

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Hchenn commented Apr 12, 2022

This PR want to solve issue #34 and #97 , And the Benchmark like:

goos: linux
goarch: amd64
pkg: github.com/bytedance/gopkg/lang/mcache
BenchmarkBsr_origin
BenchmarkBsr_origin-48     	643503000	         1.86 ns/op	       0 B/op	       0 allocs/op
BenchmarkBsr_bits
BenchmarkBsr_bits-48    	1000000000	         0.373 ns/op	       0 B/op	       0 allocs/op


          optimize: use bits.Len64 instead of bsr

cfccc15

Hchenn requested review from PureWhiteWu and zhangyunhao116 as code owners

April 12, 2022 10:23

Hchenn closed this

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