diff options
| -rw-r--r-- | src/cmd/compile/default.pgo | bin | 0 -> 355761 bytes | |||
| -rw-r--r-- | src/cmd/compile/profile.sh | 21 | ||||
| -rw-r--r-- | src/cmd/dist/buildtool.go | 4 |
3 files changed, 25 insertions, 0 deletions
diff --git a/src/cmd/compile/default.pgo b/src/cmd/compile/default.pgo Binary files differnew file mode 100644 index 0000000000..2ba79688d4 --- /dev/null +++ b/src/cmd/compile/default.pgo diff --git a/src/cmd/compile/profile.sh b/src/cmd/compile/profile.sh new file mode 100644 index 0000000000..37d65d8494 --- /dev/null +++ b/src/cmd/compile/profile.sh @@ -0,0 +1,21 @@ +# Copyright 2023 The Go Authors. All rights reserved. +# Use of this source code is governed by a BSD-style +# license that can be found in the LICENSE file. + +# This script collects a CPU profile of the compiler +# for building all targets in std and cmd, and puts +# the profile at cmd/compile/default.pgo. + +dir=$(mktemp -d) +cd $dir +seed=$(date) + +for p in $(go list std cmd); do + h=$(echo $seed $p | md5sum | cut -d ' ' -f 1) + echo $p $h + go build -o /dev/null -gcflags=-cpuprofile=$PWD/prof.$h $p +done + +go tool pprof -proto prof.* > $(go env GOROOT)/src/cmd/compile/default.pgo + +rm -r $dir diff --git a/src/cmd/dist/buildtool.go b/src/cmd/dist/buildtool.go index af3db5f590..7ecfb3a811 100644 --- a/src/cmd/dist/buildtool.go +++ b/src/cmd/dist/buildtool.go @@ -100,6 +100,10 @@ var ignorePrefixes = []string{ var ignoreSuffixes = []string{ "_test.s", "_test.go", + // Skip PGO profile. No need to build toolchain1 compiler + // with PGO. And as it is not a text file the import path + // rewrite will break it. + ".pgo", } var tryDirs = []string{ |