mirror of https://go.googlesource.com/go
22 lines
588 B
Bash
22 lines
588 B
Bash
# Copyright 2023 The Go Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style
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# license that can be found in the LICENSE file.
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# This script collects a CPU profile of the compiler
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# for building all targets in std and cmd, and puts
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# the profile at cmd/compile/default.pgo.
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dir=$(mktemp -d)
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cd $dir
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seed=$(date)
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for p in $(go list std cmd); do
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h=$(echo $seed $p | md5sum | cut -d ' ' -f 1)
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echo $p $h
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go build -o /dev/null -gcflags=-cpuprofile=$PWD/prof.$h $p
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done
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go tool pprof -proto prof.* > $(go env GOROOT)/src/cmd/compile/default.pgo
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rm -r $dir
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