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goos: linux goarch: loong64 pkg: math/bits cpu: Loongson-3A6000-HV @ 2500.00MHz | bench.old | bench.new | | sec/op | sec/op vs base | LeadingZeros 1.100n ± 1% 1.101n ± 0% ~ (p=0.566 n=10) LeadingZeros8 1.501n ± 0% 1.502n ± 0% +0.07% (p=0.000 n=10) LeadingZeros16 1.501n ± 0% 1.502n ± 0% +0.07% (p=0.000 n=10) LeadingZeros32 1.2010n ± 0% 0.9511n ± 0% -20.81% (p=0.000 n=10) LeadingZeros64 1.104n ± 1% 1.119n ± 0% +1.40% (p=0.000 n=10) TrailingZeros 0.8137n ± 0% 0.8086n ± 0% -0.63% (p=0.001 n=10) TrailingZeros8 1.031n ± 1% 1.031n ± 1% ~ (p=0.956 n=10) TrailingZeros16 0.8204n ± 1% 0.8114n ± 0% -1.11% (p=0.000 n=10) TrailingZeros32 0.8145n ± 0% 0.8090n ± 0% -0.68% (p=0.000 n=10) TrailingZeros64 0.8159n ± 0% 0.8089n ± 1% -0.86% (p=0.000 n=10) OnesCount 0.8672n ± 0% 0.8677n ± 0% +0.06% (p=0.000 n=10) OnesCount8 0.8005n ± 0% 0.8009n ± 0% +0.06% (p=0.000 n=10) OnesCount16 0.9339n ± 0% 0.9344n ± 0% +0.05% (p=0.000 n=10) OnesCount32 0.8672n ± 0% 0.8677n ± 0% +0.06% (p=0.000 n=10) OnesCount64 1.201n ± 0% 1.201n ± 0% ~ (p=0.474 n=10) RotateLeft 0.8005n ± 0% 0.8009n ± 0% +0.05% (p=0.000 n=10) RotateLeft8 1.202n ± 0% 1.202n ± 0% ~ (p=0.210 n=10) RotateLeft16 0.8050n ± 0% 0.8036n ± 0% -0.17% (p=0.002 n=10) RotateLeft32 0.6674n ± 0% 0.6674n ± 0% ~ (p=1.000 n=10) RotateLeft64 0.6673n ± 0% 0.6674n ± 0% ~ (p=0.072 n=10) Reverse 0.4123n ± 0% 0.4067n ± 1% -1.37% (p=0.000 n=10) Reverse8 0.8005n ± 0% 0.8009n ± 0% +0.05% (p=0.000 n=10) Reverse16 0.8004n ± 0% 0.8009n ± 0% +0.06% (p=0.000 n=10) Reverse32 0.8004n ± 0% 0.8009n ± 0% +0.06% (p=0.000 n=10) Reverse64 0.8004n ± 0% 0.8009n ± 0% +0.06% (p=0.001 n=10) ReverseBytes 0.4100n ± 1% 0.4057n ± 1% -1.06% (p=0.002 n=10) ReverseBytes16 0.8004n ± 0% 0.8009n ± 0% +0.07% (p=0.000 n=10) ReverseBytes32 0.8005n ± 0% 0.8009n ± 0% +0.05% (p=0.000 n=10) ReverseBytes64 0.8005n ± 0% 0.8009n ± 0% +0.05% (p=0.000 n=10) Add 1.201n ± 0% 1.201n ± 0% ~ (p=1.000 n=10) Add32 1.201n ± 0% 1.201n ± 0% ~ (p=0.474 n=10) Add64 1.201n ± 0% 1.201n ± 0% ~ (p=1.000 n=10) Add64multiple 1.831n ± 0% 1.832n ± 0% ~ (p=1.000 n=10) Sub 1.201n ± 0% 1.201n ± 0% ~ (p=1.000 n=10) Sub32 1.601n ± 0% 1.602n ± 0% +0.06% (p=0.000 n=10) Sub64 1.201n ± 0% 1.201n ± 0% ~ (p=0.474 n=10) Sub64multiple 2.400n ± 0% 2.402n ± 0% +0.10% (p=0.000 n=10) Mul 0.8005n ± 0% 0.8009n ± 0% +0.05% (p=0.000 n=10) Mul32 0.8005n ± 0% 0.8009n ± 0% +0.05% (p=0.000 n=10) Mul64 0.8004n ± 0% 0.8008n ± 0% +0.05% (p=0.000 n=10) Div 9.107n ± 0% 9.083n ± 0% ~ (p=0.255 n=10) Div32 4.009n ± 0% 4.011n ± 0% +0.05% (p=0.000 n=10) Div64 9.705n ± 0% 9.711n ± 0% +0.06% (p=0.000 n=10) geomean 1.089n 1.083n -0.62% goos: linux goarch: loong64 pkg: math/bits cpu: Loongson-3A5000 @ 2500.00MHz | bench.old | bench.new | | sec/op | sec/op vs base | LeadingZeros 1.352n ± 0% 1.341n ± 4% -0.81% (p=0.024 n=10) LeadingZeros8 1.766n ± 0% 1.781n ± 0% +0.88% (p=0.000 n=10) LeadingZeros16 1.766n ± 0% 1.782n ± 0% +0.88% (p=0.000 n=10) LeadingZeros32 1.536n ± 0% 1.341n ± 1% -12.73% (p=0.000 n=10) LeadingZeros64 1.351n ± 1% 1.338n ± 0% -0.96% (p=0.000 n=10) TrailingZeros 0.9037n ± 0% 0.9025n ± 0% -0.12% (p=0.020 n=10) TrailingZeros8 1.087n ± 3% 1.056n ± 0% ~ (p=0.060 n=10) TrailingZeros16 1.101n ± 0% 1.101n ± 0% ~ (p=0.211 n=10) TrailingZeros32 0.9040n ± 0% 0.9024n ± 1% -0.18% (p=0.017 n=10) TrailingZeros64 0.9043n ± 0% 0.9028n ± 1% ~ (p=0.118 n=10) OnesCount 1.503n ± 2% 1.482n ± 1% -1.43% (p=0.001 n=10) OnesCount8 1.207n ± 0% 1.206n ± 0% -0.12% (p=0.000 n=10) OnesCount16 1.501n ± 0% 1.534n ± 0% +2.13% (p=0.000 n=10) OnesCount32 1.483n ± 1% 1.531n ± 1% +3.27% (p=0.000 n=10) OnesCount64 1.301n ± 0% 1.302n ± 0% +0.08% (p=0.000 n=10) RotateLeft 0.8136n ± 4% 0.8083n ± 0% -0.66% (p=0.002 n=10) RotateLeft8 1.311n ± 0% 1.310n ± 0% ~ (p=0.786 n=10) RotateLeft16 1.165n ± 0% 1.149n ± 0% -1.33% (p=0.001 n=10) RotateLeft32 0.8138n ± 1% 0.8093n ± 0% -0.57% (p=0.017 n=10) RotateLeft64 0.8149n ± 1% 0.8088n ± 0% -0.74% (p=0.000 n=10) Reverse 0.5195n ± 1% 0.5109n ± 0% -1.67% (p=0.000 n=10) Reverse8 0.8007n ± 0% 0.8010n ± 0% +0.04% (p=0.000 n=10) Reverse16 0.8007n ± 0% 0.8010n ± 0% +0.04% (p=0.000 n=10) Reverse32 0.8007n ± 0% 0.8010n ± 0% +0.04% (p=0.012 n=10) Reverse64 0.8007n ± 0% 0.8010n ± 0% +0.04% (p=0.010 n=10) ReverseBytes 0.5120n ± 1% 0.5122n ± 2% ~ (p=0.306 n=10) ReverseBytes16 0.8007n ± 0% 0.8010n ± 0% +0.04% (p=0.000 n=10) ReverseBytes32 0.8007n ± 0% 0.8010n ± 0% +0.04% (p=0.000 n=10) ReverseBytes64 0.8007n ± 0% 0.8010n ± 0% +0.04% (p=0.000 n=10) Add 1.201n ± 0% 1.201n ± 4% ~ (p=0.334 n=10) Add32 1.201n ± 0% 1.201n ± 0% ~ (p=0.563 n=10) Add64 1.201n ± 0% 1.201n ± 1% ~ (p=0.652 n=10) Add64multiple 1.909n ± 0% 1.902n ± 0% ~ (p=0.126 n=10) Sub 1.201n ± 0% 1.201n ± 0% ~ (p=1.000 n=10) Sub32 1.655n ± 0% 1.654n ± 0% ~ (p=0.589 n=10) Sub64 1.201n ± 0% 1.201n ± 0% ~ (p=1.000 n=10) Sub64multiple 2.150n ± 0% 2.180n ± 4% +1.37% (p=0.000 n=10) Mul 0.9341n ± 0% 0.9345n ± 0% +0.04% (p=0.011 n=10) Mul32 1.053n ± 0% 1.030n ± 0% -2.23% (p=0.000 n=10) Mul64 0.9341n ± 0% 0.9345n ± 0% +0.04% (p=0.018 n=10) Div 11.59n ± 0% 11.57n ± 1% ~ (p=0.091 n=10) Div32 4.337n ± 0% 4.337n ± 1% ~ (p=0.783 n=10) Div64 12.81n ± 0% 12.76n ± 0% -0.39% (p=0.001 n=10) geomean 1.257n 1.252n -0.46% Change-Id: I9e93ea49736760c19dc6b6463d2aa95878121b7b Reviewed-on: https://go-review.googlesource.com/c/go/+/627855 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: abner chenc <chenguoqi@loongson.cn> Reviewed-by: Meidan Li <limeidan@loongson.cn> Reviewed-by: Junyang Shao <shaojunyang@google.com>
The test directory contains tests of the Go tool chain and runtime. It includes black box tests, regression tests, and error output tests. They are run as part of all.bash.
To run just these tests, execute:
../bin/go test cmd/internal/testdir
To run just tests from specified files in this directory, execute:
../bin/go test cmd/internal/testdir -run='Test/(file1.go|file2.go|...)'
Standard library tests should be written as regular Go tests in the appropriate package.
The tool chain and runtime also have regular Go tests in their packages. The main reasons to add a new test to this directory are:
- it is most naturally expressed using the test runner; or
- it is also applicable to
gccgo
and other Go tool chains.