Script for running a number of benchmarks comparing performance of GOEXPERIMENT=preemptibleloops

experiment.bash

#!/bin/bash
# Run with environment variable "variant" set to some useful string legal in a file name.

N=25

if [[ `arch` == "ppc64le" ]] ; then
	dohttp=
else
	dohttp=1
done

./make.bash >& mb0.log
cd ../test/bench/go1
go test -c .
mv go1.test baseline${variant}.test
cd ~/work
mkdir -p bench2
cd bench2
mkdir -p baseline${variant}
mkdir -p experiment${variant}
cd baseline${variant}
GOBIN=$PWD go get golang.org/x/benchmarks/...
cd ~/work/go/src
GOEXPERIMENT=preemptibleloops ./make.bash >& mbx.log
cd ../test/bench/go1
go test -c .
mv go1.test experiment${variant}.test
cd ~/work/bench2/experiment${variant}
GOBIN=$PWD go get golang.org/x/benchmarks/...

if test $dohttp ; then
  perflock ./http -benchnum ${N} >& http.log
fi
perflock ./json -benchnum ${N} >& json.log
cd ../baseline${variant}
if test $dohttp ; then
  perflock ./http -benchnum ${N} >& http.log
fi
perflock ./json -benchnum ${N} >& json.log
cd ../
if test $dohttp ; then
  benchstat {baseline${variant},experiment${variant}}/json.log > json${variant}.cmp
fi
benchstat {baseline${variant},experiment${variant}}/http.log > http${variant}.cmp
head -2 json${variant}.cmp | tail -1
head -2 http${variant}.cmp | tail -1

cd ~/work/go/test/bench/go1
perflock ./baseline${variant}.test -test.bench "Benchmark" -test.count ${N} >& baseline${variant}.log
perflock ./experiment${variant}.test -test.bench "Benchmark" -test.count ${N} >& experiment${variant}.log

benchstat -geomean baseline${variant}.log experiment${variant}.log >& go1${variant}.cmp
cat go1${variant}.cmp