ddad9b618c
In CL 345488, we optimized strconv.ParseXXX for []byte arguments. That allows immediate casting of a []byte to a string that does not escape to be copied on the stack. Performance: goos: darwin goarch: arm64 pkg: encoding/json old sec/op new sec/op delta CodeUnmarshal-10 3.019m ± 6% 2.865m ± 10% -5.10% (p=0.043 n=10) CodeUnmarshalReuse-10 2.528m ± 4% 2.274m ± 13% -10.03% (p=0.009 n=10) geomean 2.762m 2.553m -7.60% old B/s new B/s delta CodeUnmarshal-10 613.1Mi ± 5% 646.0Mi ± 9% +5.37% (p=0.043 n=10) CodeUnmarshalReuse-10 732.1Mi ± 4% 813.7Mi ± 12% +11.15% (p=0.009 n=10) geomean 669.9Mi 725.0Mi +8.22% old B/op new B/op delta CodeUnmarshal-10 2.782Mi ± 0% 1.918Mi ± 0% -31.04% (p=0.000 n=10) CodeUnmarshalReuse-10 1600.8Ki ± 0% 713.3Ki ± 0% -55.44% (p=0.000 n=10) geomean 2.085Mi 1.156Mi -44.57% old allocs/op new allocs/op delta CodeUnmarshal-10 91.31k ± 0% 39.99k ± 0% -56.20% (p=0.000 n=10) CodeUnmarshalReuse-10 76.58k ± 0% 25.23k ± 0% -67.06% (p=0.000 n=10) geomean 83.62k 31.76k -62.02% Change-Id: I208c57089040daee0f9d979d1df725e3acf34f81 Reviewed-on: https://go-review.googlesource.com/c/go/+/518277 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Michael Knyszek <mknyszek@google.com> Reviewed-by: Joseph Tsai <joetsai@digital-static.net> Run-TryBot: Joseph Tsai <joetsai@digital-static.net> Reviewed-by: Daniel Martí <mvdan@mvdan.cc> |
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