Re: [PATCH V2 2/4] selftests: amd-pstate: Trigger tbench benchmark and test cpus
From: Nathan Fontenot
Date: Mon Aug 08 2022 - 09:45:23 EST
On 8/4/22 09:27, Limonciello, Mario wrote:
> On 8/4/2022 00:44, Meng Li wrote:
>> Add tbench.sh trigger the tbench testing and monitor the cpu desire
>> performance, frequency, load, power consumption and throughput etc.
>>
>> Signed-off-by: Meng Li <li.meng@xxxxxxx>
>> ---
>> tools/testing/selftests/amd-pstate/Makefile | 10 +-
>> tools/testing/selftests/amd-pstate/run.sh | 217 ++++++++++-
>> tools/testing/selftests/amd-pstate/tbench.sh | 358 +++++++++++++++++++
>> 3 files changed, 576 insertions(+), 9 deletions(-)
>> create mode 100755 tools/testing/selftests/amd-pstate/tbench.sh
>>
>> diff --git a/tools/testing/selftests/amd-pstate/Makefile b/tools/testing/selftests/amd-pstate/Makefile
>> index 6f4c7b01e3bb..cac8dedb7226 100644
>> --- a/tools/testing/selftests/amd-pstate/Makefile
>> +++ b/tools/testing/selftests/amd-pstate/Makefile
>> @@ -4,7 +4,15 @@
>> # No binaries, but make sure arg-less "make" doesn't trigger "run_tests"
>> all:
>> +uname_M := $(shell uname -m 2>/dev/null || echo not)
>> +ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
>> +
>> +ifeq (x86,$(ARCH))
>> +TEST_GEN_FILES += ../../../power/x86/amd_pstate_tracer/amd_pstate_trace.py
>> +TEST_GEN_FILES += ../../../power/x86/intel_pstate_tracer/intel_pstate_tracer.py
>> +endif
>> +
>> TEST_PROGS := run.sh
>> -TEST_FILES := basic.sh
>> +TEST_FILES := basic.sh tbench.sh
>> include ../lib.mk
>> diff --git a/tools/testing/selftests/amd-pstate/run.sh b/tools/testing/selftests/amd-pstate/run.sh
>> index dfacbec063c0..aa264e96a6e6 100755
>> --- a/tools/testing/selftests/amd-pstate/run.sh
>> +++ b/tools/testing/selftests/amd-pstate/run.sh
>> @@ -9,6 +9,7 @@ else
>> fi
>> source basic.sh
>> +source tbench.sh
>> # amd-pstate-ut only run on x86/x86_64 AMD systems.
>> ARCH=$(uname -m 2>/dev/null | sed -e 's/i.86/x86/' -e 's/x86_64/x86/')
>> @@ -16,9 +17,107 @@ VENDOR=$(cat /proc/cpuinfo | grep -m 1 'vendor_id' | awk '{print $NF}')
>> FUNC=all
>> OUTFILE=selftest
>> +OUTFILE_TBENCH="$OUTFILE.tbench"
>> +
>> +SYSFS=
>> +CPUROOT=
>> +CPUFREQROOT=
>> +MAKE_CPUS=
>> +
>> +TIME_LIMIT=100
>> +PROCESS_NUM=128
>> +LOOP_TIMES=3
>> +TRACER_INTERVAL=10
>> +CURRENT_TEST=amd-pstate
>> +COMPARATIVE_TEST=
>> # Kselftest framework requirement - SKIP code is 4.
>> ksft_skip=4
>> +all_scaling_names=("acpi-cpufreq" "amd-pstate")
>> +
>> +# Get current cpufreq scaling driver name
>> +scaling_name()
>> +{
>> + if [ "$COMPARATIVE_TEST" = "" ]; then
>> + echo "$CURRENT_TEST"
>> + else
>> + echo "$COMPARATIVE_TEST"
>> + fi
>> +}
>> +
>> +# Counts CPUs with cpufreq directories
>> +count_cpus()
>> +{
>> + count=0;
>> +
>> + for cpu in `ls $CPUROOT | grep "cpu[0-9].*"`; do
>> + if [ -d $CPUROOT/$cpu/cpufreq ]; then
>> + let count=count+1;
>> + fi
>> + done
>> +
>> + echo $count;
>> +}
>> +
>> +# $1: policy
>> +find_current_governor()
>> +{
>> + cat $CPUFREQROOT/$1/scaling_governor
>> +}
>> +
>> +# $1: policy
>> +backup_governor()
>> +{
>> + local cur_gov=$(find_current_governor $1)
>> +
>> + printf "Governor backup done for $1: $cur_gov\n"
>> + echo "$1 $cur_gov" >> $OUTFILE.backup_governor.log
>> +}
>> +
>> +restore_governor()
>> +{
>> + i=0;
>> +
>> + policies=$(awk '{print $1}' $OUTFILE.backup_governor.log)
>> + for policy in $policies; do
>> + let i++;
>> + governor=$(sed -n ''$i'p' $OUTFILE.backup_governor.log | awk '{print $2}')
>> +
>> + # switch governor
>> + _switch_governor $policy $governor
>> + printf "Governor restored for $policy to $governor\n"
>> + done
>> +}
>> +
>> +# $1: policy, $2: governor
>> +_switch_governor()
>> +{
>> + echo $2 > $CPUFREQROOT/$1/scaling_governor
>> +}
>> +
>> +for_each_policy()
>> +{
>> + policies=$(ls $CPUFREQROOT| grep "policy[0-9].*")
>> + for policy in $policies; do
>> + $@ $policy
>> + done
>> +}
>> +
>> +# $1: governor, $2: policy
>> +switch_governor()
>> +{
>> + local filepath=$CPUFREQROOT/$2/scaling_available_governors
>> +
>> + # Exit if cpu isn't managed by cpufreq core
>> + if [ ! -f $filepath ]; then
>> + return;
>> + fi
>> +
>> + # switch governor
>> + _switch_governor $2 $1
>> +
>> + printf "Switched governor for $2 to $1\n"
>> +}
>> # All amd-pstate tests
>> amd_pstate_all()
>> @@ -27,8 +126,19 @@ amd_pstate_all()
>> printf "***** Running AMD P-state Sanity Tests *****\n"
>> printf "=============================================\n\n"
>> + count=$(count_cpus)
>> + if [ $count = 0 ]; then
>> + printf "No cpu is managed by cpufreq core, exiting\n"
>> + exit;
>> + else
>> + printf "AMD P-state manages: $count CPUs\n"
>> + fi
>> +
>> # unit test for amd-pstate kernel driver
>> amd_pstate_basic
>> +
>> + # tbench
>> + amd_pstate_tbench
>> }
>> helpme()
>> @@ -37,21 +147,27 @@ helpme()
>> [-h <help>]
>> [-o <output-file-for-dump>]
>> [-c <all: All testing,
>> - basic: Basic testing.>]
>> + basic: Basic testing,
>> + tbench: Tbench testing.>]
>> + [-t <tbench time limit>]
>> + [-p <tbench process number>]
>> + [-l <loop times for tbench>]
>> + [-i <amd tracer interval>]
>> + [-m <comparative test: acpi-cpufreq>]
>> \n"
>> exit 2
>> }
>> parse_arguments()
>> {
>> - while getopts ho:c: arg
>> + while getopts ho:c:t:p:l:i:m: arg
>> do
>> case $arg in
>> h) # --help
>> helpme
>> ;;
>> - c) # --func_type (Function to perform: basic (default: all))
>> + c) # --func_type (Function to perform: basic, tbench (default: all))
>> FUNC=$OPTARG
>> ;;
>> @@ -59,6 +175,26 @@ parse_arguments()
>> OUTFILE=$OPTARG
>> ;;
>> + t) # --tbench-time-limit
>> + TIME_LIMIT=$OPTARG
>> + ;;
>> +
>> + p) # --tbench-process-number
>> + PROCESS_NUM=$OPTARG
>> + ;;
>> +
>> + l) # --tbench-loop-times
>> + LOOP_TIMES=$OPTARG
>> + ;;
>> +
>> + i) # --amd-tracer-interval
>> + TRACER_INTERVAL=$OPTARG
>> + ;;
>> +
>> + m) # --comparative-test
>> + COMPARATIVE_TEST=$OPTARG
>> + ;;
>> +
>> *)
>> helpme
>> ;;
>> @@ -80,10 +216,28 @@ prerequisite()
>> fi
>> scaling_driver=$(cat /sys/devices/system/cpu/cpufreq/policy0/scaling_driver)
>> - if [ "$scaling_driver" != "amd-pstate" ]; then
>> - echo "$0 # Skipped: Test can only run on amd-pstate driver."
>> - echo "$0 # Current cpufreq scaling drvier is $scaling_driver."
>> - exit $ksft_skip
>> + if [ "$COMPARATIVE_TEST" = "" ]; then
>> + if [ "$scaling_driver" != "$CURRENT_TEST" ]; then
>> + echo "$0 # Skipped: Test can only run on $CURRENT_TEST driver or run comparative test."
>> + echo "$0 # Current cpufreq scaling drvier is $scaling_driver."
>> + exit $ksft_skip
>> + fi
>> + else
>> + case "$FUNC" in
>> + "tbench")
>> + if [ "$scaling_driver" != "$COMPARATIVE_TEST" ]; then
>> + echo "$0 # Skipped: Comparison test can only run on $COMPARATIVE_TEST driver."
>> + echo "$0 # Current cpufreq scaling drvier is $scaling_driver."
>> + exit $ksft_skip
>> + fi
>> + ;;
>> +
>> + *)
>> + echo "$0 # Skipped: Comparison test are only for tbench or gitsource."
>> + echo "$0 # Current comparative test is for $FUNC."
>> + exit $ksft_skip
>> + ;;
>> + esac
>> fi
>> msg="Skip all tests:"
>> @@ -91,10 +245,44 @@ prerequisite()
>> echo $msg please run this as root >&2
>> exit $ksft_skip
>> fi
>> +
>> + if [ ! -f perf ] ; then
>> + echo $msg please build perf under directory tools/perf and copy it to directory amd-pstate. >&2
>> + exit $ksft_skip
>> + fi
>> +
>> + SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'`
>> +
>> + if [ ! -d "$SYSFS" ]; then
>> + echo $msg sysfs is not mounted >&2
>> + exit 2
>> + fi
>> +
>> + CPUROOT=$SYSFS/devices/system/cpu
>> + CPUFREQROOT="$CPUROOT/cpufreq"
>> +
>> + if ! ls $CPUROOT/cpu* > /dev/null 2>&1; then
>> + echo $msg cpus not available in sysfs >&2
>> + exit 2
>> + fi
>> +
>> + if ! ls $CPUROOT/cpufreq > /dev/null 2>&1; then
>> + echo $msg cpufreq directory not available in sysfs >&2
>> + exit 2
>> + fi
>> }
>> do_test()
>> {
>> + # Check if CPUs are managed by cpufreq or not
>> + count=$(count_cpus)
>> + MAKE_CPUS=$((count*2))
>> +
>> + if [ $count = 0 ]; then
>> + echo "No cpu is managed by cpufreq core, exiting"
>> + exit 2;
>> + fi
>> +
>> case "$FUNC" in
>> "all")
>> amd_pstate_all
>> @@ -104,6 +292,10 @@ do_test()
>> amd_pstate_basic
>> ;;
>> + "tbench")
>> + amd_pstate_tbench
>> + ;;
>> +
>> *)
>> echo "Invalid [-f] function type"
>> helpme
>> @@ -116,7 +308,15 @@ pre_clear_dumps()
>> {
>> case "$FUNC" in
>> "all")
>> - rm -rf $OUTFILE*
>> + rm -rf $OUTFILE.log
>> + rm -rf $OUTFILE.backup_governor.log
>> + rm -rf *.png
>> + ;;
>> +
>> + "tbench")
>> + rm -rf $OUTFILE.log
>> + rm -rf $OUTFILE.backup_governor.log
>> + rm -rf tbench_*.png
>> ;;
>> *)
>> @@ -127,6 +327,7 @@ pre_clear_dumps()
>> post_clear_dumps()
>> {
>> rm -rf $OUTFILE.log
>> + rm -rf $OUTFILE.backup_governor.log
>> }
>> # Parse arguments
>> diff --git a/tools/testing/selftests/amd-pstate/tbench.sh b/tools/testing/selftests/amd-pstate/tbench.sh
>> new file mode 100755
>> index 000000000000..161b78fc12d7
>> --- /dev/null
>> +++ b/tools/testing/selftests/amd-pstate/tbench.sh
>> @@ -0,0 +1,358 @@
>> +#!/bin/sh
>> +# SPDX-License-Identifier: GPL-2.0
>> +
>> +# Testing and monitor the cpu frequency and performance when
>> +# this script trigger tbench test.
>> +
>> +# protect against multiple inclusion
>> +if [ $FILE_TBENCH ]; then
>> + return 0
>> +else
>> + FILE_TBENCH=DONE
>> +fi
>> +
>> +tbench_name="dbench-4.0"
>> +tbench_tar="$tbench_name.tar.gz"
>> +tbench_url="https://ftp.samba.org/pub/pub/tridge/dbench/dbench-4.0.tar.gz";
>
> Since you already store tbench_name and tbench_tar, perhaps you should just encode them into tbench_url rather than hardcoding again.
>
>> +tbench_governors=("ondemand" "schedutil")
>> +
>> +# $1: governor, $2: round, $3: des-perf, $4: freq, $5: load, $6: performance, $7: energy, $8: performance per watt
>> +store_csv_tbench()
>> +{
>> + echo "$1, $2, $3, $4, $5, $6, $7, $8" | tee -a $OUTFILE_TBENCH.csv > /dev/null 2>&1
>> +}
>> +
>> +# clear some special lines
>> +clear_csv_tbench()
>> +{
>> + if [ -f $OUTFILE_TBENCH.csv ]; then
>> + sed -i '/Comprison(%)/d' $OUTFILE_TBENCH.csv
>> + sed -i "/$(scaling_name)/d" $OUTFILE_TBENCH.csv
>> + fi
>> +}
>> +
>> +# find string $1 in file csv and get the number of lines
>> +get_lines_csv_tbench()
>> +{
>> + if [ -f $OUTFILE_TBENCH.csv ]; then
>> + return `grep -c "$1" $OUTFILE_TBENCH.csv`
>> + else
>> + return 0
>> + fi
>> +}
>> +
>> +pre_clear_tbench()
>> +{
>> + post_clear_tbench
>> + rm -rf tbench_*.png
>> + clear_csv_tbench
>> +}
>> +
>> +post_clear_tbench()
>> +{
>> + rm -rf results/tracer-tbench*
>> + rm -rf $OUTFILE_TBENCH*.log
>> + rm -rf $OUTFILE_TBENCH*.result
>> +
>> +}
>> +
>> +install_tbench()
>> +{
>> + if [ ! -d $tbench_name ]; then
>
> tbench is also available in the repositories for common major distros.
> What about before falling to downloading and compiling it you first try to grab package from apt/yum?
>
> Something similar to this:
>
> if apt policy tbench 2>&1 1>/dev/null;
> sudo apt install tbench
> elif yum list available | grep tbench 2>&1 1>/dev/null;
> sudo yum install tbench
> else
> #do existing/install with wget/curl.
> fi
>
It may be worth adding a check to see if tbench (and the perf tools) are already installed.
-Nathan
>> + printf "Download tbench, please wait a moment ...\n\n"
>> + wget -O $tbench_tar $tbench_url > /dev/null 2>&1
>> +
>> + printf "Tar tbench ...\n\n"
>> + tar -xzf $tbench_tar
>> +
>> + printf "Compile and install tbench ...\n\n"
>> + cd $tbench_name
>> + ./autogen.sh
>> + ./configure > /dev/null 2>&1
>> + make > /dev/null 2>&1
>> + make install > /dev/null 2>&1
>> + cd ..
>> + fi
>> +}
>> +
>> +# $1: governor, $2: loop
>> +run_tbench()
>> +{
>> + echo "Launching amd pstate tracer for $1 #$2 tracer_interval: $TRACER_INTERVAL"
>> + ./amd_pstate_trace.py -n tracer-tbench-$1-$2 -i $TRACER_INTERVAL > /dev/null 2>&1 &
>> +
>> + printf "Test tbench for $1 #$2 time_limit: $TIME_LIMIT procs_num: $PROCESS_NUM\n"
>> + cd $tbench_name
>> + ./tbench_srv > /dev/null 2>&1 &
>> + ./../perf stat -a --per-socket -I 1000 -e power/energy-pkg/ ./tbench -t $TIME_LIMIT $PROCESS_NUM > ../$OUTFILE_TBENCH-perf-$1-$2.log 2>&1
>> + cd ..
>> +
>> + pid=`pidof tbench_srv`
>> + kill $pid
>> +
>> + for job in `jobs -p`
>> + do
>> + echo "Waiting for job id $job"
>> + wait $job
>> + done
>> +}
>> +
>> +# $1: governor, $2: loop
>> +parse_tbench()
>> +{
>> + awk '{print $5}' results/tracer-tbench-$1-$2/cpu.csv | sed -e '1d' | sed s/,// > $OUTFILE_TBENCH-des-perf-$1-$2.log
>> + avg_des_perf=$(awk 'BEGIN {i=0; sum=0};{i++; sum += $1};END {print sum/i}' $OUTFILE_TBENCH-des-perf-$1-$2.log)
>> + printf "Tbench-$1-#$2 avg des perf: $avg_des_perf\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + awk '{print $7}' results/tracer-tbench-$1-$2/cpu.csv | sed -e '1d' | sed s/,// > $OUTFILE_TBENCH-freq-$1-$2.log
>> + avg_freq=$(awk 'BEGIN {i=0; sum=0};{i++; sum += $1};END {print sum/i}' $OUTFILE_TBENCH-freq-$1-$2.log)
>> + printf "Tbench-$1-#$2 avg freq: $avg_freq\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + awk '{print $11}' results/tracer-tbench-$1-$2/cpu.csv | sed -e '1d' | sed s/,// > $OUTFILE_TBENCH-load-$1-$2.log
>> + avg_load=$(awk 'BEGIN {i=0; sum=0};{i++; sum += $1};END {print sum/i}' $OUTFILE_TBENCH-load-$1-$2.log)
>> + printf "Tbench-$1-#$2 avg load: $avg_load\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + grep Throughput $OUTFILE_TBENCH-perf-$1-$2.log | awk '{print $2}' > $OUTFILE_TBENCH-throughput-$1-$2.log
>> + tp_sum=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum}' $OUTFILE_TBENCH-throughput-$1-$2.log)
>> + printf "Tbench-$1-#$2 throughput(MB/s): $tp_sum\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + grep Joules $OUTFILE_TBENCH-perf-$1-$2.log | awk '{print $4}' > $OUTFILE_TBENCH-energy-$1-$2.log
>> + en_sum=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum}' $OUTFILE_TBENCH-energy-$1-$2.log)
>> + printf "Tbench-$1-#$2 power consumption(J): $en_sum\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + # Permance is throughput per second, denoted T/t, where T is throught rendered in t seconds.
>> + # It is well known that P=E/t, where P is power measured in watts(W), E is energy measured in joules(J),
>> + # and t is time measured in seconds(s). This means that performance per watt becomes
>> + # T/t T/t T
>> + # --- = --- = ---
>> + # P E/t E
>> + # with unit given by MB per joule.
>> + ppw=`echo "scale=4;($TIME_LIMIT-1)*$tp_sum/$en_sum" | bc | awk '{printf "%.4f", $0}'`
>> + printf "Tbench-$1-#$2 performance per watt(MB/J): $ppw\n" | tee -a $OUTFILE_TBENCH.result
>> + printf "\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + driver_name=`echo $(scaling_name)`
>> + store_csv_tbench "$driver_name-$1" $2 $avg_des_perf $avg_freq $avg_load $tp_sum $en_sum $ppw
>> +}
>> +
>> +# $1: governor
>> +loop_tbench()
>> +{
>> + printf "\nTbench total test times is $LOOP_TIMES for $1\n\n"
>> + for i in `seq 1 $LOOP_TIMES`
>> + do
>> + run_tbench $1 $i
>> + parse_tbench $1 $i
>> + done
>> +}
>> +
>> +# $1: governor
>> +gather_tbench()
>> +{
>> + printf "Tbench test result for $1 (loops:$LOOP_TIMES)" | tee -a $OUTFILE_TBENCH.result
>> + printf "\n--------------------------------------------------\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + grep "Tbench-$1-#" $OUTFILE_TBENCH.result | grep "avg des perf:" | awk '{print $NF}' > $OUTFILE_TBENCH-des-perf-$1.log
>> + avg_des_perf=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum/'$LOOP_TIMES'}' $OUTFILE_TBENCH-des-perf-$1.log)
>> + printf "Tbench-$1 avg des perf: $avg_des_perf\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + grep "Tbench-$1-#" $OUTFILE_TBENCH.result | grep "avg freq:" | awk '{print $NF}' > $OUTFILE_TBENCH-freq-$1.log
>> + avg_freq=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum/'$LOOP_TIMES'}' $OUTFILE_TBENCH-freq-$1.log)
>> + printf "Tbench-$1 avg freq: $avg_freq\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + grep "Tbench-$1-#" $OUTFILE_TBENCH.result | grep "avg load:" | awk '{print $NF}' > $OUTFILE_TBENCH-load-$1.log
>> + avg_load=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum/'$LOOP_TIMES'}' $OUTFILE_TBENCH-load-$1.log)
>> + printf "Tbench-$1 avg load: $avg_load\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + grep "Tbench-$1-#" $OUTFILE_TBENCH.result | grep "throughput(MB/s):" | awk '{print $NF}' > $OUTFILE_TBENCH-throughput-$1.log
>> + tp_sum=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum}' $OUTFILE_TBENCH-throughput-$1.log)
>> + printf "Tbench-$1 total throughput(MB/s): $tp_sum\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + avg_tp=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum/'$LOOP_TIMES'}' $OUTFILE_TBENCH-throughput-$1.log)
>> + printf "Tbench-$1 avg throughput(MB/s): $avg_tp\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + grep "Tbench-$1-#" $OUTFILE_TBENCH.result | grep "power consumption(J):" | awk '{print $NF}' > $OUTFILE_TBENCH-energy-$1.log
>> + en_sum=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum}' $OUTFILE_TBENCH-energy-$1.log)
>> + printf "Tbench-$1 total power consumption(J): $en_sum\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + avg_en=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum/'$LOOP_TIMES'}' $OUTFILE_TBENCH-energy-$1.log)
>> + printf "Tbench-$1 avg power consumption(J): $avg_en\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + # Permance is throughput per second, denoted T/t, where T is throught rendered in t seconds.
>> + # It is well known that P=E/t, where P is power measured in watts(W), E is energy measured in joules(J),
>> + # and t is time measured in seconds(s). This means that performance per watt becomes
>> + # T/t T/t T
>> + # --- = --- = ---
>> + # P E/t E
>> + # with unit given by MB per joule.
>> + ppw=`echo "scale=4;($TIME_LIMIT-1)*$avg_tp/$avg_en" | bc | awk '{printf "%.4f", $0}'`
>> + printf "Tbench-$1 performance per watt(MB/J): $ppw\n" | tee -a $OUTFILE_TBENCH.result
>> + printf "\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + driver_name=`echo $(scaling_name)`
>> + store_csv_tbench "$driver_name-$1" "Average" $avg_des_perf $avg_freq $avg_load $avg_tp $avg_en $ppw
>> +}
>> +
>> +# $1: base scaling_driver $2: base governor $3: comparative scaling_driver $4: comparative governor
>> +__calc_comp_tbench()
>> +{
>> + base=`grep "$1-$2" $OUTFILE_TBENCH.csv | grep "Average"`
>> + comp=`grep "$3-$4" $OUTFILE_TBENCH.csv | grep "Average"`
>> +
>> + if [ -n "$base" -a -n "$comp" ]; then
>> + printf "\n==================================================\n" | tee -a $OUTFILE_TBENCH.result
>> + printf "Tbench comparison $1-$2 VS $3-$4" | tee -a $OUTFILE_TBENCH.result
>> + printf "\n==================================================\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + # get the base values
>> + des_perf_base=`echo "$base" | awk '{print $3}' | sed s/,//`
>> + freq_base=`echo "$base" | awk '{print $4}' | sed s/,//`
>> + load_base=`echo "$base" | awk '{print $5}' | sed s/,//`
>> + perf_base=`echo "$base" | awk '{print $6}' | sed s/,//`
>> + energy_base=`echo "$base" | awk '{print $7}' | sed s/,//`
>> + ppw_base=`echo "$base" | awk '{print $8}' | sed s/,//`
>> +
>> + # get the comparative values
>> + des_perf_comp=`echo "$comp" | awk '{print $3}' | sed s/,//`
>> + freq_comp=`echo "$comp" | awk '{print $4}' | sed s/,//`
>> + load_comp=`echo "$comp" | awk '{print $5}' | sed s/,//`
>> + perf_comp=`echo "$comp" | awk '{print $6}' | sed s/,//`
>> + energy_comp=`echo "$comp" | awk '{print $7}' | sed s/,//`
>> + ppw_comp=`echo "$comp" | awk '{print $8}' | sed s/,//`
>> +
>> + # compare the base and comp values
>> + des_perf_drop=`echo "scale=4;($des_perf_comp-$des_perf_base)*100/$des_perf_base" | bc | awk '{printf "%.4f", $0}'`
>> + printf "Tbench-$1 des perf base: $des_perf_base comprison: $des_perf_comp percent: $des_perf_drop\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + freq_drop=`echo "scale=4;($freq_comp-$freq_base)*100/$freq_base" | bc | awk '{printf "%.4f", $0}'`
>> + printf "Tbench-$1 freq base: $freq_base comprison: $freq_comp percent: $freq_drop\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + load_drop=`echo "scale=4;($load_comp-$load_base)*100/$load_base" | bc | awk '{printf "%.4f", $0}'`
>> + printf "Tbench-$1 load base: $load_base comprison: $load_comp percent: $load_drop\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + perf_drop=`echo "scale=4;($perf_comp-$perf_base)*100/$perf_base" | bc | awk '{printf "%.4f", $0}'`
>> + printf "Tbench-$1 perf base: $perf_base comprison: $perf_comp percent: $perf_drop\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + energy_drop=`echo "scale=4;($energy_comp-$energy_base)*100/$energy_base" | bc | awk '{printf "%.4f", $0}'`
>> + printf "Tbench-$1 energy base: $energy_base comprison: $energy_comp percent: $energy_drop\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + ppw_drop=`echo "scale=4;($ppw_comp-$ppw_base)*100/$ppw_base" | bc | awk '{printf "%.4f", $0}'`
>> + printf "Tbench-$1 performance per watt base: $ppw_base comprison: $ppw_comp percent: $ppw_drop\n" | tee -a $OUTFILE_TBENCH.result
>> + printf "\n" | tee -a $OUTFILE_TBENCH.result
>> +
>> + store_csv_tbench "$1-$2 VS $3-$4" "Comprison(%)" "$des_perf_drop" "$freq_drop" "$load_drop" "$perf_drop" "$energy_drop" "$ppw_drop"
>> + fi
>> +}
>> +
>> +# calculate the comparison(%)
>> +calc_comp_tbench()
>> +{
>> + # acpi-cpufreq-ondemand VS acpi-cpufreq-schedutil
>> + __calc_comp_tbench ${all_scaling_names[0]} ${tbench_governors[0]} ${all_scaling_names[0]} ${tbench_governors[1]}
>> +
>> + # amd-pstate-ondemand VS amd-pstate-schedutil
>> + __calc_comp_tbench ${all_scaling_names[1]} ${tbench_governors[0]} ${all_scaling_names[1]} ${tbench_governors[1]}
>> +
>> + # acpi-cpufreq-ondemand VS amd-pstate-ondemand
>> + __calc_comp_tbench ${all_scaling_names[0]} ${tbench_governors[0]} ${all_scaling_names[1]} ${tbench_governors[0]}
>> +
>> + # acpi-cpufreq-schedutil VS amd-pstate-schedutil
>> + __calc_comp_tbench ${all_scaling_names[0]} ${tbench_governors[1]} ${all_scaling_names[1]} ${tbench_governors[1]}
>> +}
>> +
>> +# $1: file_name, $2: title, $3: ylable, $4: column
>> +plot_png_tbench()
>> +{
>> + # all_scaling_names[1] all_scaling_names[0] flag
>> + # amd-pstate acpi-cpufreq
>> + # N N 0
>> + # N Y 1
>> + # Y N 2
>> + # Y Y 3
>> + ret=`grep -c "${all_scaling_names[1]}" $OUTFILE_TBENCH.csv`
>> + if [ $ret -eq 0 ]; then
>> + ret=`grep -c "${all_scaling_names[0]}" $OUTFILE_TBENCH.csv`
>> + if [ $ret -eq 0 ]; then
>> + flag=0
>> + else
>> + flag=1
>> + fi
>> + else
>> + ret=`grep -c "${all_scaling_names[0]}" $OUTFILE_TBENCH.csv`
>> + if [ $ret -eq 0 ]; then
>> + flag=2
>> + else
>> + flag=3
>> + fi
>> + fi
>> +
>> + gnuplot << EOF
>> + set term png
>> + set output "$1"
>> +
>> + set title "$2"
>> + set xlabel "Test Cycles (round)"
>> + set ylabel "$3"
>> +
>> + set grid
>> + set style data histogram
>> + set style fill solid 0.5 border
>> + set boxwidth 0.8
>> +
>> + if ($flag == 1) {
>> + plot \
>> + "<(sed -n -e 's/,//g' -e '/${all_scaling_names[0]}-${tbench_governors[0]}/p' $OUTFILE_TBENCH.csv)" using $4:xtic(2) title "${all_scaling_names[0]}-${tbench_governors[0]}", \
>> + "<(sed -n -e 's/,//g' -e '/${all_scaling_names[0]}-${tbench_governors[1]}/p' $OUTFILE_TBENCH.csv)" using $4:xtic(2) title "${all_scaling_names[0]}-${tbench_governors[1]}"
>> + } else {
>> + if ($flag == 2) {
>> + plot \
>> + "<(sed -n -e 's/,//g' -e '/${all_scaling_names[1]}-${tbench_governors[0]}/p' $OUTFILE_TBENCH.csv)" using $4:xtic(2) title "${all_scaling_names[1]}-${tbench_governors[0]}", \
>> + "<(sed -n -e 's/,//g' -e '/${all_scaling_names[1]}-${tbench_governors[1]}/p' $OUTFILE_TBENCH.csv)" using $4:xtic(2) title "${all_scaling_names[1]}-${tbench_governors[1]}"
>> + } else {
>> + if ($flag == 3 ) {
>> + plot \
>> + "<(sed -n -e 's/,//g' -e '/${all_scaling_names[0]}-${tbench_governors[0]}/p' $OUTFILE_TBENCH.csv)" using $4:xtic(2) title "${all_scaling_names[0]}-${tbench_governors[0]}", \
>> + "<(sed -n -e 's/,//g' -e '/${all_scaling_names[0]}-${tbench_governors[1]}/p' $OUTFILE_TBENCH.csv)" using $4:xtic(2) title "${all_scaling_names[0]}-${tbench_governors[1]}", \
>> + "<(sed -n -e 's/,//g' -e '/${all_scaling_names[1]}-${tbench_governors[0]}/p' $OUTFILE_TBENCH.csv)" using $4:xtic(2) title "${all_scaling_names[1]}-${tbench_governors[0]}", \
>> + "<(sed -n -e 's/,//g' -e '/${all_scaling_names[1]}-${tbench_governors[1]}/p' $OUTFILE_TBENCH.csv)" using $4:xtic(2) title "${all_scaling_names[1]}-${tbench_governors[1]}"
>> + }
>> + }
>> + }
>> + quit
>> +EOF
>> +}
>> +
>> +amd_pstate_tbench()
>> +{
>> + printf "\n---------------------------------------------\n"
>> + printf "*** Running tbench ***"
>> + printf "\n---------------------------------------------\n"
>> +
>> + pre_clear_tbench
>> +
>> + install_tbench
>> +
>> + get_lines_csv_tbench "Governor"
>> + if [ $? -eq 0 ]; then
>> + # add titles and unit for csv file
>> + store_csv_tbench "Governor" "Round" "Des-perf" "Freq" "Load" "Performance" "Energy" "Performance Per Watt"
>> + store_csv_tbench "Unit" "" "" "GHz" "" "MB/s" "J" "MB/J"
>> + fi
>> +
>> + for_each_policy backup_governor
>> + for governor in ${tbench_governors[*]} ; do
>> + printf "\nSpecified governor is $governor\n\n"
>> + for_each_policy switch_governor $governor
>> + loop_tbench $governor
>> + gather_tbench $governor
>> + done
>> + restore_governor
>> +
>> + plot_png_tbench "tbench_perfromance.png" "Tbench Benchmark Performance" "Performance" 6
>> + plot_png_tbench "tbench_energy.png" "Tbench Benchmark Energy" "Energy (J)" 7
>> + plot_png_tbench "tbench_ppw.png" "Tbench Benchmark Performance Per Watt" "Performance Per Watt (MB/J)" 8
>> +
>> + calc_comp_tbench
>> +
>> + post_clear_tbench
>> +}
>