[Patch 1/10]Patch to integrate kernbench to LTP to test sched_mc=2 To verify CPU consolidation when sched_mc=2 we need kernbench. Hence integrating it in LTP.
Signed-off-by: poornima nayak <[email protected]> diff -uprN ltp_orig/utils/benchmark/kernbench-0.42/COPYING ltp_patched/utils/benchmark/kernbench-0.42/COPYING --- ltp_orig/utils/benchmark/kernbench-0.42/COPYING 1970-01-01 05:30:00.000000000 +0530 +++ ltp_patched/utils/benchmark/kernbench-0.42/COPYING 2009-06-30 15:05:39.000000000 +0530 @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. 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Bligh +trap 'echo "ABORTING";exit' 1 2 15 + +VERSION=0.42 + +num_runs=5 +single_runs=0 +half_runs=1 +opti_runs=1 +max_runs=1 +fast_run=0 + +while getopts vsHOMn:o:hf i +do + case $i in + h) echo "kernbench v$VERSION by Con Kolivas <[email protected]>" + echo "Usage:" + echo "kernbench [-n runs] [-o jobs] [-s] [-H] [-O] [-M] [-h] [-v]" + echo "n : number of times to perform benchmark (default 5)" + echo "o : number of jobs for optimal run (default 4 * cpu)" + echo "s : perform single threaded runs (default don't)" + echo "H : don't perform half load runs (default do)" + echo "O : don't perform optimal load runs (default do)" + echo "M : don't perform maximal load runs (default do)" + echo "f : fast run" + echo "h : print this help" + echo "v : print version number" + exit ;; + v) echo "kernbench Version $VERSION by Con Kolivas <[email protected]>" ; exit ;; + n) nruns=$OPTARG ;; + o) optijobs=$OPTARG ;; + s) single_runs=1 ;; + H) half_runs=0 ;; + O) opti_runs=0 ;; + M) max_runs=0 ;; + f) fast_run=1 ;; + esac +done + +if [[ ! -f include/linux/kernel.h ]] ; then + echo "No kernel source found; exiting" + exit +fi + +for i in time awk yes date +do + iname=`which $i` + if [[ ! -a $iname ]] ; then + echo "$i not found in path, please install it; exiting" + exit + fi +done + +time=`which time` + +if [[ $nruns -gt 0 ]] ; then + num_runs=$nruns +elif [[ $fast_run -eq 1 ]]; then + echo "Dropping to 3 runs for fast run" + num_runs=3 +fi + +if (($num_runs < 1)) ; then + echo "Nothing to do; exiting" + exit +fi + +if (($num_runs > 10)) ; then + echo "Are you crazy? trimming number of runs to 10" + num_runs=10 +fi + +if [[ ! -d /proc ]] ; then + echo "Can't find proc filesystem; exiting" + exit +fi + +mem=`awk '/MemTotal/ {print $2}' /proc/meminfo` +if [[ $mem -lt 4000000 && $max_runs -gt 0 ]] ; then + echo Less than 4Gb ram detected! + echo Maximal loads will not measure cpu throughput and may cause a swapstorm! + echo If you did not plan this, -M flag is recommended to bypass maximal load. +fi + +(( single_runs *= $num_runs )) +(( half_runs *= $num_runs )) +(( opti_runs *= $num_runs )) +(( max_runs *= $num_runs )) + +cpus=`grep -c ^processor /proc/cpuinfo` +echo $cpus cpus found +echo Cleaning source tree... +make clean > /dev/null 2>&1 + +if [[ $fast_run -eq 0 ]] ; then + echo Caching kernel source in ram... + for i in `find -type f` + do + cat $i > /dev/null + done +fi + +if [[ ! -f .config ]] ; then + echo No old config found, using defconfig + echo Making mrproper + make mrproper > /dev/null 2>&1 + echo Making defconfig... + make defconfig > /dev/null 2>&1 +else + echo Making oldconfig... + yes "" | make oldconfig > /dev/null 2>&1 +fi + +halfjobs=$(( $cpus / 2 )) +optijobs=${optijobs:=$(( $cpus * 4 ))} + +if [[ $halfjobs -lt 2 ]] ; then + echo "Half load is no greater than single; disabling" + half_runs=0 +elif [[ $halfjobs -eq 2 ]] ; then + echo "Half load is 2 jobs, changing to 3 as a kernel compile won't guarantee 2 jobs" + halfjobs=3 +fi + +echo Kernel `uname -r` +echo Performing $num_runs runs of +if [[ $single_runs -gt 0 ]] ; then + echo make +fi +if [[ $half_runs -gt 0 ]] ; then + echo make -j $halfjobs +fi +if [[ $opti_runs -gt 0 ]] ; then + echo make -j $optijobs +fi +if [[ $max_runs -gt 0 ]] ; then + echo make -j +fi +echo + +echo All data logged to kernbench.log + +if [[ $fast_run -eq 0 ]] ; then + echo Warmup run... + make -j $optijobs > /dev/null 2>&1 +fi + +date >> kernbench.log +uname -r >> kernbench.log + +add_data_point() +{ + echo $@ | awk '{printf "%.6f %.6f %d", $1 + $2, $1 * $1 + $3, $4 + 1}' +} + +show_statistics() +{ + case $3 in + 0) + echo "No data" + ;; + 1) + echo $1 + ;; + *) + avg=`echo $1 $3 | awk '{print $1 / $2}'` + var=`echo $1 $2 $3 | awk '{print ($2 - ($1 * $1) / $3) / ($3 - 1)}'` + sdev=`echo $var | awk '{print $1^0.5}'` + echo "$avg ($sdev)" + ;; + esac +} + +do_log() +{ + echo "Average $runname Run (std deviation):" > templog + echo Elapsed Time `show_statistics $temp_elapsed` >> templog + echo User Time `show_statistics $temp_user` >> templog + echo System Time `show_statistics $temp_sys` >> templog + echo Percent CPU `show_statistics $temp_percent` >> templog + echo Context Switches `show_statistics $temp_ctx` >> templog + echo Sleeps `show_statistics $temp_sleeps` >> templog + echo >> templog + cat templog + cat templog >> kernbench.log +} + +do_runs() +{ + temp_elapsed="a" + for (( i=1 ; i <= temp_runs ; i++ )) + do + echo $runname run number $i... + make clean > /dev/null 2>&1 + sync + if [[ $fast_run -eq 0 ]] ; then + sleep 5 + fi + $time -f "%e %U %S %P %c %w" -o timelog make -j $tempjobs > /dev/null 2>&1 + read elapsed_time user_time sys_time percent ctx sleeps <timelog + temp_elapsed=`add_data_point $elapsed_time $temp_elapsed` + temp_user=`add_data_point $user_time $temp_user` + temp_sys=`add_data_point $sys_time $temp_sys` + temp_percent=`add_data_point $percent $temp_percent` + temp_ctx=`add_data_point $ctx $temp_ctx` + temp_sleeps=`add_data_point $sleeps $temp_sleeps` + done + if [[ $temp_runs -ne 0 ]] ; then + do_log + fi +} + +temp_runs=$single_runs +tempjobs=1 +runname="Single threaded" +do_runs + +temp_runs=$half_runs +tempjobs=$halfjobs +runname="Half load -j $halfjobs" +do_runs + +temp_runs=$opti_runs +tempjobs=$optijobs +runname="Optimal load -j $optijobs" +do_runs + +temp_runs=$max_runs +tempjobs="" +runname="Maximal load -j" +do_runs diff -uprN ltp_orig/utils/benchmark/kernbench-0.42/Makefile ltp_patched/utils/benchmark/kernbench-0.42/Makefile --- ltp_orig/utils/benchmark/kernbench-0.42/Makefile 1970-01-01 05:30:00.000000000 +0530 +++ ltp_patched/utils/benchmark/kernbench-0.42/Makefile 2009-06-30 15:05:39.000000000 +0530 @@ -0,0 +1,8 @@ +all: + +install: + chmod ugo+x kernbench + +configure: + +clean: diff -uprN ltp_orig/utils/benchmark/kernbench-0.42/README ltp_patched/utils/benchmark/kernbench-0.42/README --- ltp_orig/utils/benchmark/kernbench-0.42/README 1970-01-01 05:30:00.000000000 +0530 +++ ltp_patched/utils/benchmark/kernbench-0.42/README 2009-06-30 15:05:39.000000000 +0530 @@ -0,0 +1,81 @@ +Kernbench v0.42 + + +What is this? + +This is a cpu throughput benchmark originally devised and used by Martin J. +Bligh. It is designed to compare kernels on the same machine, or to compare +hardware. To compare hardware you need to be running the same architecture +machines (eg i386), the same userspace binaries and run kernbench on the same +kernel source tree. + +It runs a kernel at various numbers of concurrent jobs: 1/2 number of cpus, +optimal (default is 4xnumber of cpus) and maximal job count. Optionally it can +also run single threaded. It then prints out a number of useful statistics +for the average of each group of runs and logs them to kernbench.log + +You need more than 2Gb of ram for this to be a true throughput benchmark or +else you will get swapstorms. + +Ideally it should be run in single user mode on a non-journalled filesystem. +To compare results it should always be run in the same kernel tree. + + +How do I use it? + +You need a kernel tree (any 2.6 will do) and the applications 'time', 'awk', +'date' and 'yes' installed. 'time' is different to the builtin time used by +BASH and has more information desired for this benchmark. + +Simply cd into the kernel tree directory and type + +/path/to/kernbench + + +Options + +kernbench [-n runs] [-o jobs] [-s] [-H] [-O] [-M] [-h] [-v] +n : number of times to perform benchmark (default 5) +o : number of jobs for optimal run (default 4 * cpu) +s : perform single threaded runs (default don't) +H : don't perform half load runs (default do) +O : don't perform optimal load runs (default do) +M : don't perform maximal load runs (default do) +f : fast run +h : print this help +v : print version number + + +Changelog: +v0.42 Fixed incorrect counting of cpus (thanks Flynn Marquardt) + Changed -j to at least 4GB ram. + +v0.41 Fixed make oldconfig + +v0.40 Made all runs use the oldconfig if it exists. Changed to only do one + warmup run before all the benchmarks. Added logging to kernbench.log + Cleaned up the code substantially to reuse code where possible. + Added standard deviation statistics courtesy of Peter Williams + +v0.30 Added fast run option which bypasses caching, warmup and tree + preparation and drops number of runs to 3. Modified half loads to + detect -j2 and change to -j3. Added syncs. Improved warnings and + messages. + +v0.20 Change to average of runs, add options to choose which runs to perform + remove single threaded run from defaults, do warmup run, lots more + sanity checks, drop meaningless runs, add a few warnings, remove fudge + factor from no. of jobs. + +v0.11 First public release + + +Thanks: M. Bligh for ideas. Others for help with magic incantations to get + BASH to work. + + +Con Kolivas <[email protected]> +Mon Jun 18 18:59:24 2007 + +License: +GPL of course. Read COPYING included in this tarball. ------------------------------------------------------------------------------ _______________________________________________ Ltp-list mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ltp-list
