cmd/go: scale go list with GOMAXPROCS
Benchmark from the go-list-benchmark branch shows the following result:
goos: darwin
goarch: arm64
pkg: cmd/go
cpu: Apple M1 Max
│ old.txt │ new.txt │
│ sec/op │ sec/op vs base │
ListModules/Empty-10 7.768m ± 5% 7.768m ± 6% ~ (p=0.989 n=20)
ListModules/Cmd-10 272.3m ± 2% 137.8m ± 2% -49.40% (p=0.000 n=20)
ListModules/K8S-10 10.741 ± 2% 2.525 ± 5% -76.49% (p=0.000 n=20)
geomean 283.2m 139.3m -50.82%
│ old.txt │ new.txt │
│ sys-sec/op │ sys-sec/op vs base │
ListModules/Empty-10 2.380m ± 9% 2.443m ± 9% ~ (p=0.314 n=20)
ListModules/Cmd-10 51.84m ± 13% 47.27m ± 14% ~ (p=0.289 n=20)
ListModules/K8S-10 1.660 ± 8% 1.485 ± 28% ~ (p=0.512 n=20)
geomean 58.95m 55.56m -5.75%
│ old.txt │ new.txt │
│ user-sec/op │ user-sec/op vs base │
ListModules/Empty-10 3.034m ± 4% 3.053m ± 3% ~ (p=0.445 n=20)
ListModules/Cmd-10 18.01m ± 11% 15.39m ± 5% -14.55% (p=0.000 n=20)
ListModules/K8S-10 407.6m ± 11% 209.2m ± 49% -48.67% (p=0.000 n=20)
geomean 28.13m 21.42m -23.86%
Fixes #63136
Change-Id: Ifd406a52494eb37430306ee1f29a8bf5c1973007
GitHub-Last-Rev:
eba40c944e8a8c57c11fa075e98e1ee5420be1a8
GitHub-Pull-Request: golang/go#63137
Reviewed-on: https://go-review.googlesource.com/c/go/+/530037
Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
Reviewed-by: qiu laidongfeng2 <2645477756@qq.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>