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* [LTP] [Patch 1/10]Patch to integrate kernbench to LTP to test sched_mc=2
@ 2009-06-30 14:57 Poornima Nayak
  2009-06-30 14:57 ` [LTP] [Patch 2/10]Makefile patch to integrate to LTP Poornima Nayak
                   ` (9 more replies)
  0 siblings, 10 replies; 14+ messages in thread
From: Poornima Nayak @ 2009-06-30 14:57 UTC (permalink / raw)
  To: ltp-list

[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 <mpnayak@linux.vnet.ibm.com>

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
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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 <kernbench@kolivas.org>
+# 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 <kernbench@kolivas.org>"
+				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 $VERSION by Con Kolivas <kernbench@kolivas.org>" ; exit ;;
+		 n) nruns=$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 <kernbench@kolivas.org>
+Mon Jun 18 18:59:24 2007
+
+License:
+GPL of course. Read COPYING included in this tarball.

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^ permalink raw reply	[flat|nested] 14+ messages in thread
end of thread, other threads:[~2009-06-30 16:10 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-06-30 14:57 [LTP] [Patch 1/10]Patch to integrate kernbench to LTP to test sched_mc=2 Poornima Nayak
2009-06-30 14:57 ` [LTP] [Patch 2/10]Makefile patch to integrate to LTP Poornima Nayak
2009-06-30 16:10   ` Subrata Modak
2009-06-30 14:57 ` [LTP] [Patch 3/10]Readme modified with pre-requisite for sched_mc=2 test Poornima Nayak
2009-06-30 16:10   ` Subrata Modak
2009-06-30 14:57 ` [LTP] [Patch 4/10]Reusable functions for consolidation test modified Poornima Nayak
2009-06-30 14:57 ` [LTP] [Patch 5/10]CPU consolidation testcase updated to handle exceptions Poornima Nayak
2009-06-30 14:57 ` [LTP] [Patch 6/10]sched domian " Poornima Nayak
2009-06-30 14:58 ` [LTP] [Patch 7/10]Fixes for sched_mc & sched_smt interface test Poornima Nayak
2009-06-30 14:58 ` [LTP] [Patch 8/10]New set of reusbale Library functions and fixes Poornima Nayak
2009-06-30 14:58 ` [LTP] [Patch 9/10]Master script modified to cover additional test scenarios Poornima Nayak
2009-06-30 14:58 ` [LTP] [Patch 10/10]Patch to add another command file in runtest Poornima Nayak
2009-06-30 16:10   ` Subrata Modak
2009-06-30 16:09 ` [LTP] [Patch 1/10]Patch to integrate kernbench to LTP to test sched_mc=2 Subrata Modak

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