[PATCH V3 2/4] selftests: amd-pstate: Trigger tbench benchmark and test cpus

Meng Li
2022-09-14T06:12:10Z

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@amd.com>
---
tools/testing/selftests/amd-pstate/Makefile | 10 +-
tools/testing/selftests/amd-pstate/run.sh | 243 +++++++++++++-
tools/testing/selftests/amd-pstate/tbench.sh | 334 +++++++++++++++++++
3 files changed, 577 insertions(+), 10 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 715e9d01484f..dea61e4443fc 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=$(uname -m 2>/dev/null | sed -e 's/i.86/x86/' -e 's/x86_64/x86/')
@@ -16,9 +17,98 @@ VENDOR=$(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/$1/scaling_governor
+}
+
+backup_governor()
+{
+ policies=$(ls $CPUFREQROOT| grep "policy[0-9].*")
+ for policy in $policies; do
+ cur_gov=$(find_current_governor $policy)
+ echo "$policy $cur_gov" >> $OUTFILE.backup_governor.log
+ done
+
+ printf "Governor $cur_gov backup done.\n"
+}
+
+restore_governor()
+{
+ i=0;
+
+ policies=$(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
+ echo $governor > $CPUFREQROOT/$policy/scaling_governor
+ done
+
+ printf "Governor restored to $governor.\n"
+}
+
+# $1: governor
+switch_governor()
+{
+ policies=$(ls $CPUFREQROOT| grep "policy[0-9].*")
+ for policy in $policies; do
+ filepath=$CPUFREQROOT/$policy/scaling_available_governors
+
+ # Exit if cpu isn't managed by cpufreq core
+ if [ ! -f $filepath ]; then
+ return;
+ fi
+
+ echo $1 > $CPUFREQROOT/$policy/scaling_governor
+ done
+
+ printf "Switched governor to $1.\n"
+}

# All amd-pstate tests
amd_pstate_all()
@@ -27,8 +117,19 @@ 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 +138,27 @@ 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 +166,26 @@ 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
;;
@@ -66,6 +193,32 @@ parse_arguments()
done
}

+command_perf()
+{
+ if ! command -v perf > /dev/null; then
+ echo $msg please install perf. >&2
+ exit $ksft_skip
+ fi
+}
+
+command_tbench()
+{
+ if ! command -v tbench > /dev/null; then
+ if apt policy dbench > /dev/null 2>&1; then
+ printf "Install dbench, please wait a moment ...\n"
+ sudo apt install dbench > /dev/null 2>&1
+ elif yum list available | grep dbench > /dev/null 2>&1; then
+ printf "Install dbench, please wait a moment ...\n"
+ sudo yum install dbench > /dev/null 2>&1
+ fi
+ fi
+
+ if ! command -v tbench > /dev/null; then
+ echo $msg please install tbench. >&2
+ exit $ksft_skip
+ fi
+}
+
prerequisite()
{
if ! echo "$ARCH" | grep -q x86; then
@@ -80,11 +233,29 @@ 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 # Please set X86_AMD_PSTATE enabled."
- 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 # Please set X86_AMD_PSTATE enabled 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."
+ echo "$0 # Current comparative test is for $FUNC."
+ exit $ksft_skip
+ ;;
+ esac
fi

msg="Skip all tests:"
@@ -92,10 +263,51 @@ prerequisite()
echo $msg please run this as root >&2
exit $ksft_skip
fi
+
+ case "$FUNC" in
+ "all")
+ command_perf
+ command_tbench
+ ;;
+
+ "tbench")
+ command_perf
+ command_tbench
+ ;;
+ esac
+
+ 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
@@ -105,6 +317,10 @@ do_test()
amd_pstate_basic
;;

+ "tbench")
+ amd_pstate_tbench
+ ;;
+
*)
echo "Invalid [-f] function type"
helpme
@@ -117,7 +333,15 @@ 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
;;

*)
@@ -128,6 +352,7 @@ 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..fd6e28139035
--- /dev/null
+++ b/tools/testing/selftests/amd-pstate/tbench.sh
@@ -0,0 +1,334 @@
+#!/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_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
+
+}
+
+# $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"
+ 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
+
+ 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
+
+ backup_governor
+ for governor in ${tbench_governors[*]} ; do
+ printf "\nSpecified governor is $governor\n\n"
+ 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
+}
--
2.34.1