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debug's Issues

debug包的效率问题

Benchmark结果
➜ debug git:(master) ✗ go test -bench=. -run BenchmarkMutex -count=5
goos: linux
goarch: amd64
BenchmarkMutex-4 100000000 19.0 ns/op
BenchmarkMutex-4 100000000 18.6 ns/op
BenchmarkMutex-4 100000000 18.9 ns/op
BenchmarkMutex-4 100000000 18.3 ns/op
BenchmarkMutex-4 100000000 18.2 ns/op
PASS
ok _/mnt/f/workspace/go_practice/funny/debug 9.399s
➜ debug git:(master) ✗ go test -tags deadlock -bench=. -run BenchmarkMutex -count=5
goos: linux
goarch: amd64
BenchmarkMutex-4 100000 14455 ns/op
BenchmarkMutex-4 100000 14501 ns/op
BenchmarkMutex-4 100000 14388 ns/op
BenchmarkMutex-4 100000 14456 ns/op
BenchmarkMutex-4 100000 14502 ns/op
PASS
ok _/mnt/f/workspace/go_practice/funny/debug 7.988s

发现效率降低了将近800倍，线上使用会不会拖慢业务

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