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Diffstat (limited to 'poky/scripts/contrib/test_build_time.sh')
| -rwxr-xr-x | poky/scripts/contrib/test_build_time.sh | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/poky/scripts/contrib/test_build_time.sh b/poky/scripts/contrib/test_build_time.sh new file mode 100755 index 000000000..9e5725ae5 --- /dev/null +++ b/poky/scripts/contrib/test_build_time.sh @@ -0,0 +1,237 @@ +#!/bin/bash + +# Build performance regression test script +# +# Copyright 2011 Intel Corporation +# All rights reserved. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# +# +# DESCRIPTION +# This script is intended to be used in conjunction with "git bisect run" +# in order to find regressions in build time, however it can also be used +# independently. It cleans out the build output directories, runs a +# specified worker script (an example is test_build_time_worker.sh) under +# TIME(1), logs the results to TEST_LOGDIR (default /tmp) and returns a +# value telling "git bisect run" whether the build time is good (under +# the specified threshold) or bad (over it). There is also a tolerance +# option but it is not particularly useful as it only subtracts the +# tolerance from the given threshold and uses it as the actual threshold. +# +# It is also capable of taking a file listing git revision hashes to be +# test-applied to the repository in order to get past build failures that +# would otherwise cause certain revisions to have to be skipped; if a +# revision does not apply cleanly then the script assumes it does not +# need to be applied and ignores it. +# +# Please see the help output (syntax below) for some important setup +# instructions. +# +# AUTHORS +# Paul Eggleton <paul.eggleton@linux.intel.com> + + +syntax() { + echo "syntax: $0 <script> <time> <tolerance> [patchrevlist]" + echo "" + echo " script - worker script file (if in current dir, prefix with ./)" + echo " time - time threshold (in seconds, suffix m for minutes)" + echo " tolerance - tolerance (in seconds, suffix m for minutes or % for" + echo " percentage, can be 0)" + echo " patchrevlist - optional file listing revisions to apply as patches on top" + echo "" + echo "You must set TEST_BUILDDIR to point to a previously created build directory," + echo "however please note that this script will wipe out the TMPDIR defined in" + echo "TEST_BUILDDIR/conf/local.conf as part of its initial setup (as well as your" + echo "~/.ccache)" + echo "" + echo "To get rid of the sudo prompt, please add the following line to /etc/sudoers" + echo "(use 'visudo' to edit this; also it is assumed that the user you are running" + echo "as is a member of the 'wheel' group):" + echo "" + echo "%wheel ALL=(ALL) NOPASSWD: /sbin/sysctl -w vm.drop_caches=[1-3]" + echo "" + echo "Note: it is recommended that you disable crond and any other process that" + echo "may cause significant CPU or I/O usage during build performance tests." +} + +# Note - we exit with 250 here because that will tell git bisect run that +# something bad happened and stop +if [ "$1" = "" ] ; then + syntax + exit 250 +fi + +if [ "$2" = "" ] ; then + syntax + exit 250 +fi + +if [ "$3" = "" ] ; then + syntax + exit 250 +fi + +if ! [[ "$2" =~ ^[0-9][0-9m.]*$ ]] ; then + echo "'$2' is not a valid number for threshold" + exit 250 +fi + +if ! [[ "$3" =~ ^[0-9][0-9m.%]*$ ]] ; then + echo "'$3' is not a valid number for tolerance" + exit 250 +fi + +if [ "$TEST_BUILDDIR" = "" ] ; then + echo "Please set TEST_BUILDDIR to a previously created build directory" + exit 250 +fi + +if [ ! -d "$TEST_BUILDDIR" ] ; then + echo "TEST_BUILDDIR $TEST_BUILDDIR not found" + exit 250 +fi + +git diff --quiet +if [ $? != 0 ] ; then + echo "Working tree is dirty, cannot proceed" + exit 251 +fi + +if [ "$BB_ENV_EXTRAWHITE" != "" ] ; then + echo "WARNING: you are running after sourcing the build environment script, this is not recommended" +fi + +runscript=$1 +timethreshold=$2 +tolerance=$3 + +if [ "$4" != "" ] ; then + patchrevlist=`cat $4` +else + patchrevlist="" +fi + +if [[ timethreshold == *m* ]] ; then + timethreshold=`echo $timethreshold | sed s/m/*60/ | bc` +fi + +if [[ $tolerance == *m* ]] ; then + tolerance=`echo $tolerance | sed s/m/*60/ | bc` +elif [[ $tolerance == *%* ]] ; then + tolerance=`echo $tolerance | sed s/%//` + tolerance=`echo "scale = 2; (($tolerance * $timethreshold) / 100)" | bc` +fi + +tmpdir=`grep "^TMPDIR" $TEST_BUILDDIR/conf/local.conf | sed -e 's/TMPDIR[ \t]*=[ \t\?]*"//' -e 's/"//'` +if [ "x$tmpdir" = "x" ]; then + echo "Unable to determine TMPDIR from $TEST_BUILDDIR/conf/local.conf, bailing out" + exit 250 +fi +sstatedir=`grep "^SSTATE_DIR" $TEST_BUILDDIR/conf/local.conf | sed -e 's/SSTATE_DIR[ \t\?]*=[ \t]*"//' -e 's/"//'` +if [ "x$sstatedir" = "x" ]; then + echo "Unable to determine SSTATE_DIR from $TEST_BUILDDIR/conf/local.conf, bailing out" + exit 250 +fi + +if [ `expr length $tmpdir` -lt 4 ] ; then + echo "TMPDIR $tmpdir is less than 4 characters, bailing out" + exit 250 +fi + +if [ `expr length $sstatedir` -lt 4 ] ; then + echo "SSTATE_DIR $sstatedir is less than 4 characters, bailing out" + exit 250 +fi + +echo -n "About to wipe out TMPDIR $tmpdir, press Ctrl+C to break out... " +for i in 9 8 7 6 5 4 3 2 1 +do + echo -ne "\x08$i" + sleep 1 +done +echo + +pushd . > /dev/null + +rm -f pseudodone +echo "Removing TMPDIR $tmpdir..." +rm -rf $tmpdir +echo "Removing TMPDIR $tmpdir-*libc..." +rm -rf $tmpdir-*libc +echo "Removing SSTATE_DIR $sstatedir..." +rm -rf $sstatedir +echo "Removing ~/.ccache..." +rm -rf ~/.ccache + +echo "Syncing..." +sync +sync +echo "Dropping VM cache..." +#echo 3 > /proc/sys/vm/drop_caches +sudo /sbin/sysctl -w vm.drop_caches=3 > /dev/null + +if [ "$TEST_LOGDIR" = "" ] ; then + logdir="/tmp" +else + logdir="$TEST_LOGDIR" +fi +rev=`git rev-parse HEAD` +logfile="$logdir/timelog_$rev.log" +echo -n > $logfile + +gitroot=`git rev-parse --show-toplevel` +cd $gitroot +for patchrev in $patchrevlist ; do + echo "Applying $patchrev" + patchfile=`mktemp` + git show $patchrev > $patchfile + git apply --check $patchfile &> /dev/null + if [ $? != 0 ] ; then + echo " ... patch does not apply without errors, ignoring" + else + echo "Applied $patchrev" >> $logfile + git apply $patchfile &> /dev/null + fi + rm $patchfile +done + +sync +echo "Quiescing for 5s..." +sleep 5 + +echo "Running $runscript at $rev..." +timeoutfile=`mktemp` +/usr/bin/time -o $timeoutfile -f "%e\nreal\t%E\nuser\t%Us\nsys\t%Ss\nmaxm\t%Mk" $runscript 2>&1 | tee -a $logfile +exitstatus=$PIPESTATUS + +git reset --hard HEAD > /dev/null +popd > /dev/null + +timeresult=`head -n1 $timeoutfile` +cat $timeoutfile | tee -a $logfile +rm $timeoutfile + +if [ $exitstatus != 0 ] ; then + # Build failed, exit with 125 to tell git bisect run to skip this rev + echo "*** Build failed (exit code $exitstatus), skipping..." | tee -a $logfile + exit 125 +fi + +ret=`echo "scale = 2; $timeresult > $timethreshold - $tolerance" | bc` +echo "Returning $ret" | tee -a $logfile +exit $ret + |