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There is a 3.8% performance regression building in go when I upgrade from go-12.9 to go-13.0 #34487

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jiebinn opened this issue Sep 24, 2019 · 2 comments
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There is a 3.8% performance regression building in go when I upgrade from go-12.9 to go-13.0 #34487

jiebinn opened this issue Sep 24, 2019 · 2 comments
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FrozenDueToAge WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided.

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@jiebinn
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jiebinn commented Sep 24, 2019

What version of Go are you using (go version)?

13.0

Does this issue reproduce with the latest release?

yes

What operating system and processor architecture are you using (go env)?

go env Output
$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/pnp/.cache/go-build"
GOENV="/home/pnp/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/pnp/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/lib/golang"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/lib/golang/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="gcc-ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build249663122=/tmp/go-build -gno-record-gcc-switches"

What did you do?

  1. wget https://phoronix-test-suite.com/releases/phoronix-test-suite-9.0.0.tar.gz
  2. tar zxvf phoronix-test-suite-9.0.0.tar.gz
  3. cd ~/phoronix-test-suite
    ./install-sh
  4. phoronix-test-suite run go-benchmark
  5. select the option: build

What did you expect to see?

I hope there is no regression building in go when I upgrade from go-12.9 to go-13.0

What did you see instead?

3.8% loss in go-benchmark(option: build)
@randall77
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Where can I get the source for the benchmark? It isn't in that download.

By "build", is this a benchmark of building Go programs? I don't think it is a large problem that builds are 3.8% slower. If you wish to continue investigating, It might help to narrow down where the extra time goes - compiler or linker? What compiler phase? Etc.

@agnivade agnivade added the WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided. label Sep 24, 2019
@gopherbot
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Timed out in state WaitingForInfo. Closing.

(I am just a bot, though. Please speak up if this is a mistake or you have the requested information.)

@golang golang locked and limited conversation to collaborators Oct 23, 2020
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@agnivade @randall77 @gopherbot @jiebinn