f4e5bd483b
It is disabled by default.
It can be enabled by setting the environment variable
GO19CONCURRENTCOMPILATION=1.
Benchmarking results are presented in a grid.
Columns are different values of c (compiler backend concurrency);
rows are different values of p (process concurrency).
'go build -a std cmd', a 4 core raspberry pi 3:
c=1 c=2 c=4
StdCmd/p=1 504s ± 2% 413s ± 4% 367s ± 3%
StdCmd/p=2 314s ± 3% 266s ± 4% 267s ± 4%
StdCmd/p=4 254s ± 5% 241s ± 5% 238s ± 6%
'go build -a std cmd', an 8 core darwin/amd64 laptop:
c=1 c=2 c=4 c=6 c=8
StdCmd/p=1 40.4s ± 7% 31.0s ± 1% 27.3s ± 1% 27.8s ± 0% 27.7s ± 0%
StdCmd/p=2 21.9s ± 1% 17.9s ± 1% 16.9s ± 1% 17.0s ± 1% 17.2s ± 0%
StdCmd/p=4 17.4s ± 2% 14.5s ± 2% 13.3s ± 2% 13.5s ± 2% 13.6s ± 2%
StdCmd/p=6 16.9s ± 1% 14.2s ± 2% 13.1s ± 2% 13.2s ± 2% 13.3s ± 2%
StdCmd/p=8 16.7s ± 2% 14.2s ± 2% 13.2s ± 3% 13.2s ± 2% 13.4s ± 2%
'go build -a std cmd', a 96 core arm64 server:
c=1 c=2 c=4 c=6 c=8 c=16 c=32 c=64 c=96
StdCmd/p=1 173s ± 1% 133s ± 1% 114s ± 1% 109s ± 1% 106s ± 0% 106s ± 1% 107s ± 1% 110s ± 1% 113s ± 1%
StdCmd/p=2 94.2s ± 2% 71.5s ± 1% 61.7s ± 1% 58.7s ± 1% 57.5s ± 2% 56.9s ± 1% 58.0s ± 1% 59.6s ± 1% 61.0s ± 1%
StdCmd/p=4 74.1s ± 2% 53.5s ± 1% 43.7s ± 2% 40.5s ± 1% 39.2s ± 2% 38.9s ± 2% 39.5s ± 3% 40.3s ± 2% 40.8s ± 1%
StdCmd/p=6 69.3s ± 1% 50.2s ± 2% 40.3s ± 2% 37.3s ± 3% 36.0s ± 3% 35.3s ± 2% 36.0s ± 2% 36.8s ± 2% 37.5s ± 2%
StdCmd/p=8 66.1s ± 2% 47.7s ± 2% 38.6s ± 2% 35.7s ± 2% 34.4s ± 1% 33.6s ± 2% 34.2s ± 2% 34.6s ± 1% 35.0s ± 1%
StdCmd/p=16 63.4s ± 2% 45.3s ± 2% 36.3s ± 2% 33.3s ± 2% 32.0s ± 3% 31.6s ± 2% 32.1s ± 2% 32.5s ± 2% 32.7s ± 2%
StdCmd/p=32 62.2s ± 1% 44.2s ± 2% 35.3s ± 2% 32.4s ± 2% 31.2s ± 2% 30.9s ± 2% 31.1s ± 2% 31.7s ± 2% 32.0s ± 2%
StdCmd/p=64 62.2s ± 1% 44.3s ± 2% 35.4s ± 2% 32.4s ± 2% 31.2s ± 2% 30.9s ± 2% 31.2s ± 2% 31.8s ± 3% 32.2s ± 3%
StdCmd/p=96 62.2s ± 2% 44.4s ± 2% 35.3s ± 2% 32.3s ± 2% 31.1s ± 2% 30.9s ± 3% 31.3s ± 2% 31.7s ± 1% 32.1s ± 2%
benchjuju, an 8 core darwin/amd64 laptop:
c=1 c=2 c=4 c=6 c=8
BuildJuju/p=1 55.3s ± 0% 46.3s ± 0% 41.9s ± 0% 41.4s ± 1% 41.3s ± 0%
BuildJuju/p=2 33.7s ± 1% 28.4s ± 1% 26.7s ± 1% 26.6s ± 1% 26.8s ± 1%
BuildJuju/p=4 24.7s ± 1% 22.3s ± 1% 21.4s ± 1% 21.7s ± 1% 21.8s ± 1%
BuildJuju/p=6 20.6s ± 1% 19.3s ± 2% 19.4s ± 1% 19.7s ± 1% 19.9s ± 1%
BuildJuju/p=8 20.6s ± 2% 19.5s ± 2% 19.3s ± 2% 19.6s ± 1% 19.8s ± 2%
Updates #15756
Change-Id: I8a56e88953071a05eee764002024c54cd888a56c
Reviewed-on: https://go-review.googlesource.com/41819
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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| lib/time | ||
| misc | ||
| src | ||
| test | ||
| .gitattributes | ||
| .gitignore | ||
| AUTHORS | ||
| CONTRIBUTING.md | ||
| CONTRIBUTORS | ||
| favicon.ico | ||
| LICENSE | ||
| PATENTS | ||
| README.md | ||
| robots.txt | ||
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