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tests/performance: add performance-run.sh script for running performance test
The main use of the performance test is to run it for two (or more) commits
and compare the results. Doing that manually, is cumbersome.
Add a (very hacky) script to help with that. For usage, see the comment
on top of the script.
Example:
# first:
meson build -Dprefix=/tmp/glib/ -Db_lto=true --buildtype release -Ddebug=true
# then:
GLIB_PERFORMANCE_FACTOR=17.06 \
PERF='perf stat -r 4 -B' \
PATCH="2.80.0..th/performance" \
COMMITS="2.79.3 2.80.0" \
/tmp/performance-run.sh -s 1 property-get property-set
This will build the requested $COMMITS and print something like:
...
>>> combined result > /tmp/glib-performance-output.all
Running test property-get
property-get: Property get per second: 35742719 37208288 (+4.1%)
Running test property-set
property-set: Property set per second: 32341232 36942399 (+14.2%)
Running test property-get
property-get: Property get per second: 36934401 37143479 (+0.566%)
Running test property-set
property-set: Property set per second: 38046387 38165548 (+0.313%)
Running test property-get
property-get: Property get per second: 34759576 36359761 (+4.6%)
Running test property-set
property-set: Property set per second: 35262505 37651733 (+6.78%)
Running test property-get
property-get: Property get per second: 37014537 32870906 (-11.2%)
Running test property-set
property-set: Property set per second: 36633026 38216846 (+4.32%)
Performance counter stats for './build/gobject/tests/performance/performance -s 1 property-get property-set' (4 runs):
1,312.18 msec task-clock:u # 1.000 CPUs utilized ( +- 4.82% )
0 context-switches:u # 0.000 /sec
0 cpu-migrations:u # 0.000 /sec
121 page-faults:u # 92.213 /sec ( +- 0.24% )
5,221,701,009 cycles:u # 3.979 GHz ( +- 2.61% )
19,035,814,175 instructions:u # 3.65 insn per cycle ( +- 0.00% )
4,335,306,010 branches:u # 3.304 G/sec ( +- 0.00% )
13,031 branch-misses:u # 0.00% of all branches ( +- 4.17% )
TopdownL1 # 10.3 % tma_backend_bound
# 5.3 % tma_bad_speculation
# 11.4 % tma_frontend_bound
# 73.1 % tma_retiring ( +- 2.15% )
[1] 1.3127 +- 0.0634 seconds time elapsed ( +- 4.83% )
[2] 1.2631 +- 0.0253 seconds time elapsed ( +- 2.00% )
property-get: Property get per second: 35742719 , 36934401 , 34759576 , 37014537 ; 37208288 , 37143479 , 36359761 , 32870906 ;
property-set: Property set per second: 32341232 , 38046387 , 35262505 , 36633026 ; 36942399 , 38165548 , 37651733 , 38216846 ;
This commit is contained in:
Thomas Haller
Philip Withnall
parent
7b9e6d4949
commit
4d5047e0e7
224
gobject/tests/performance/performance-run.sh
Executable file
224
gobject/tests/performance/performance-run.sh
Executable file
@ -0,0 +1,224 @@
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#!/bin/bash
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# Copyright (C) 2024 Red Hat, Inc.
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#
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# SPDX-License-Identifier: LGPL-2.1-or-later
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# Run ./build/gobject/tests/performance/performance for several commits
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# and compare the result.
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#
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# Howto:
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#
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# 1) configure the build. For example run
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# $ git clean -fdx
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# $ meson build -Dprefix=/tmp/glib/ -Db_lto=true --buildtype release -Ddebug=true
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# Beware, that running the script will check out other commits,
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# build the tree and run `ninja install`. Don't have important
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# work there.
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#
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# 2) run the script. Set $COMMITS to the list of commit sha's to test.
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# Environment variables:
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# COMMITS: list of git references to test.
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# PATCH: if set, after checking out each commit, run `git cherry-pick $PATCH`
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# before building.
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# PREPARE_CMD: if set, invoke $PREPARE_CMD after checking out commit. Can be used
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# to patch the sources.
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# PERF: if set, run performance test via perf. Set for example, `PERF="perf stat -r 10 -B"`
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# When setting `PERF`, you probably also want to set GLIB_PERFORMANCE_FACTOR,
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# which depends on the test (run the test in verbose mode to find a suitable factor).
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# STRIP: if set to 1, call `strip` on the library and binary before running.
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# Arguments: arguments are directly passed to performance. For example try "-s 1".
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#
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# Example:
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#
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# # once:
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# git clean -fdx
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# meson build -Dprefix=/tmp/glib/ -Db_lto=true --buildtype release -Ddebug=true
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#
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# # test:
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# COMMIT_END=my-test-branch
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# COMMIT_START="$(git merge-base origin/main "$COMMIT_END")"
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# PERF="" PATCH="" COMMITS=" $COMMIT_START $COMMIT_END " /tmp/performance-run.sh -s 5
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# PERF="" PATCH="" COMMITS=" $COMMIT_START $( git log --reverse --pretty=%H "$COMMIT_START..$COMMIT_END" ) " /tmp/performance-run.sh -s 5
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#
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# GLIB_PERFORMANCE_FACTOR=17.06 PERF='perf stat -r 3 -B' PATCH="" COMMITS=" $COMMIT_START $COMMIT_END " /tmp/performance-run.sh -s 1 property-get
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set -e
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usage() {
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sed -n '4,/^$/ s/^#\( \(.*\)\|\)$/\2/p' "$0"
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}
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if [ "$#" -eq 1 ] && [ "$1" == "-h" ] ; then
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usage
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exit 0
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fi
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die() {
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printf "%s\n" "$*"
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exit 1
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}
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die_with_last_cmd() {
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cat /tmp/glib-performance-last-cmd || :
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die "$@"
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}
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read -ra COMMITS_V -d '' <<<"$COMMITS" || :
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[ "${#COMMITS_V[@]}" -gt 0 ] || die "Must set \$COMMITS"
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COMMITS_SHA=()
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for commit in "${COMMITS_V[@]}" ; do
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c="$(git rev-parse --verify "$commit^{commit}")" || die "invalid git reference \"$commit\""
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COMMITS_SHA+=( "$c" )
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done
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_list_commits() {
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local PREFIX="$1"
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local idx
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local I
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I=0
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for idx in "${!COMMITS_V[@]}" ; do
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I=$((I+1))
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echo "${PREFIX}[$I] $(git log -n1 --oneline "${COMMITS_SHA[$idx]}") (${COMMITS_V[$idx]})"
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done
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}
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cat << EOF
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Testing commits:
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$(_list_commits " ")
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\$ meson build -Dprefix=/tmp/glib/ -Db_lto=true --buildtype release -Ddebug=true
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\$ PATCH=$(printf '%q' "$PATCH") \\
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PREPARE_CMD=$(printf '%q' "$PREPARE_CMD") \\
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PERF=$(printf '%q' "$PERF") \\
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GLIB_PERFORMANCE_FACTOR=$(printf '%q' "$GLIB_PERFORMANCE_FACTOR") \\
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STRIP=$(printf '%q' "$STRIP") \\
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COMMITS=$(printf '%q' "$COMMITS") \\
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$0$(printf ' %q' "$@")
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EOF
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_get_timing() {
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local LINE_NUM="$1"
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local LINE_PREFIX="$2"
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local FILE="$3"
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sed -n "$LINE_NUM s/^$LINE_PREFIX: //p" "$FILE"
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}
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_perc() {
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awk -v n1="$1" -v n2="$2" 'BEGIN { printf("%+0.3g%\n", (n2 - n1) / n1 * 100.0); }'
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}
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_cmd() {
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# printf ' $' ; printf ' %s' "$@" ; printf '\n'
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"$@"
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}
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I=0
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for idx in "${!COMMITS_V[@]}" ; do
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commit="${COMMITS_V[$idx]}"
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commit_sha="${COMMITS_SHA[$idx]}"
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I=$((I+1))
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echo -n ">>> [$I] test [ $(git log -n1 --oneline "$commit") ]"
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git checkout -f "$commit_sha" &> /tmp/glib-performance-last-cmd || (echo ...; die_with_last_cmd "Failure to checkout \"$commit\"")
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touch glib/gdataset.c gobject/gobject.c gobject/tests/performance/performance.c
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if [ "$PATCH" != "" ] ; then
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read -ra PATCH_ARR -d '' <<<"$PATCH" || :
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for p in "${PATCH_ARR[@]}" ; do
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git cherry-pick "$p" &> /tmp/glib-performance-last-cmd || (echo ...; die_with_last_cmd "Failure to cherry-pick \"$PATCH\"")
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done
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fi
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if [ "$PREPARE_CMD" != "" ] ; then
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I="$I" COMMIT="$commit" "$PREPARE_CMD" &> /tmp/glib-performance-last-cmd || (echo ...; die_with_last_cmd "\$PREPARE_CMD failed")
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fi
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echo " commit $(git rev-parse --verify HEAD) > /tmp/glib-performance-output.$I"
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( ninja -C build || ninja -C build ) &> /tmp/glib-performance-last-cmd || die_with_last_cmd "Failure to build with \`ninja -C build\`"
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ninja -C build install &> /tmp/glib-performance-last-cmd || die_with_last_cmd "FAilure to install with \`ninja -C build install\`"
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if [ "$STRIP" = 1 ] ; then
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strip ./build/gobject/libgobject-2.0.so ./build/glib/libglib-2.0.so.0 ./build/gobject/tests/performance/performance
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fi
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# ls -lad -L \
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# ./build/gobject/libgobject-2.0.so \
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# ./build/glib/libglib-2.0.so \
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# ./build/gobject/tests/performance/performance
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# ldd ./build/gobject/tests/performance/performance
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(
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if [ -z "$PERF" ] ; then
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TESTRUN="$I" TESTCOMMIT="$commit" ./build/gobject/tests/performance/performance "$@"
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else
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TESTRUN="$I" TESTCOMMIT="$commit" $PERF ./build/gobject/tests/performance/performance "$@"
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fi
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) |& tee "/tmp/glib-performance-output.$I" || :
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[ "${PIPESTATUS[0]}" -eq 0 ] || die "Performance test failed"
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done
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merge_output() {
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(
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declare -A RES
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LINE_NUM=0
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OLD_IFS="$IFS"
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while IFS=$'\n' read -r LINE ; do
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LINE="${LINE:1}"
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LINE_NUM=$((LINE_NUM+1))
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line_regex='^([a-zA-Z0-9].*): +([0-9.]+)$'
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if [[ "$LINE" =~ $line_regex ]] ; then
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LINE_PREFIX="${BASH_REMATCH[1]}"
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T1="${BASH_REMATCH[2]}"
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echo -n "$LINE_PREFIX: $T1"
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RES["$LINE_PREFIX"]="${RES[$LINE_PREFIX]} $T1"
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for J in $(seq 2 "${#COMMITS_V[@]}") ; do
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T="$(_get_timing "$LINE_NUM" "$LINE_PREFIX" "/tmp/glib-performance-output.$J")"
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echo -n " $T ($(_perc "$T1" "$T"))"
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RES["$LINE_PREFIX"]="${RES[$LINE_PREFIX]} $T"
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done
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echo
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continue
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fi
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if [ -n "$PERF" ] ; then
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if [[ "$LINE" == *"seconds time elapsed"* ]] ; then
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echo "[1] $LINE"
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for J in $(seq 2 "${#COMMITS_V[@]}") ; do
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echo "[$J] $(sed -n "$LINE_NUM s/seconds time elapsed/\\0/p" "/tmp/glib-performance-output.$J")"
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done
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continue
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fi
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fi
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echo "$LINE"
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done < <( sed 's/^/x/' "/tmp/glib-performance-output.1" )
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IFS="$OLD_IFS"
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if [ -n "$PERF" ] ; then
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for LINE_PREFIX in "${!RES[@]}"; do
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# The values are interleaved. To cumbersome to process in bash.
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read -ra T -d '' <<<"${RES[$LINE_PREFIX]}" || :
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read -ra T_SORTED -d '' < <(printf '%s\n' "${T[@]}" | awk -v C="${#COMMITS_V[@]}" '{ print (1 + (NR-1) % C) " " $0 }' | sort -n -s | sed 's/^[0-9]\+ *//' ) || :
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NGROUP="$(( "${#T_SORTED[@]}" / "${#COMMITS_V[@]}" ))"
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echo -n "$LINE_PREFIX: "
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SEP=''
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for J in $(seq 0 "${#T_SORTED[@]}") ; do
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echo -n "$SEP${T_SORTED[$J]}"
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if [ $(( (J+1) % NGROUP )) = 0 ]; then
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echo -n " ; "
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SEP=''
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else
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SEP=" , "
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fi
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done
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echo
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done
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fi
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) | tee "/tmp/glib-performance-output.all"
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}
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echo ">>> combined result > /tmp/glib-performance-output.all"
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merge_output
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