On Tue, 2009-06-30 at 20:27 +0530, Poornima Nayak wrote: > [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]> Thanks. > > 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. 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If this is what you want to do, use the GNU Library General > +Public License instead of this License. > diff -uprN ltp_orig/utils/benchmark/kernbench-0.42/kernbench > ltp_patched/utils/benchmark/kernbench-0.42/kernbench > --- ltp_orig/utils/benchmark/kernbench-0.42/kernbench 1970-01-01 > 05:30:00.000000000 +0530 > +++ ltp_patched/utils/benchmark/kernbench-0.42/kernbench 2009-06-30 > 15:05:39.000000000 +0530 > @@ -0,0 +1,233 @@ > +#!/bin/sh > +# kernbench by Con Kolivas <[email protected]> > +# based on a benchmark by Martin J. 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
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