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Diffstat (limited to 'disk-io-stress-switcher/disk-io-stress-switcher.sh')
| -rwxr-xr-x | disk-io-stress-switcher/disk-io-stress-switcher.sh | 435 |
1 files changed, 435 insertions, 0 deletions
diff --git a/disk-io-stress-switcher/disk-io-stress-switcher.sh b/disk-io-stress-switcher/disk-io-stress-switcher.sh new file mode 100755 index 0000000..df97f1e --- /dev/null +++ b/disk-io-stress-switcher/disk-io-stress-switcher.sh @@ -0,0 +1,435 @@ +# Copyright (C) 2012, Linaro Limited. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# as published by the Free Software Foundation; either version 2 +# of the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +# +# Author: Amit Pundir <amit.pundir@linaro.org> +# Modified-by: Naresh Kamboju <naresh.kamboju@linaro.org> +# + +usage() +{ + echo "" + echo "usage: $0 [<option> <argument>] .." + echo "" + echo "Options: -f <operating frequency> [big/little; Default: big]" + echo " -c <operate on this cpu> [this option can be specified multiple times]" + echo " -d <take this cpu offline>" + echo " -e <bring this cpu online>" + echo " -s <periodic switching interval in msec> [Default: 50]" + echo " -r <random switching seed> [Default: 100]" + echo " -l <random switching seed limit> [Default: 1000]" + echo " -n <threads to be executed on specific cpus>" + echo " -S single-sync Sequential half transition (e.g.: big->barrier->little->barrier)" + echo "" + echo "Example of periodic switching: $0 -f big -c 0 -c 1 ... -c $large_cpu_number -s 50" + echo "Example of random switching: $0 -f big -c 0 -c 1 ... -c $large_cpu_number -r 100 -l 1000" + echo "Example of periodic switching while spawning threads on cpu0 and cpu3: $0 -f big -c 0 -c 1 ... -c $large_cpu_number -n 0 ... $large_cpu_number -s 50" + echo "Example of simultaneous thread while spawning threads on all cpus: $0 -f big -c 0 -n 0 ... $large_cpu_number -s 100 -S" + exit 1 +} + +IO_STATUS=0; +SWITCHER_STATUS=0; + +total_no_of_cpu=`ls /sys/devices/system/cpu/cpu*/online | wc -l` +large_cpu_number=$((total_no_of_cpu-1)) + +TASKSET=affinity_tools + +CPU_FAST= +CPU_SLOW= + +#ARM +IMPLEMENTER=0x41 +#A7 +PART_SLOW=0xc07 +#A15 +PART_FAST=0xc0f +eachslow= +eachfast= +EACH_CPU= + +get_no_of_cpus () +{ + cpu=0 + while [ $cpu -lt $total_no_of_cpu ]; + do + $TASKSET -part $cpu,$IMPLEMENTER,$PART_SLOW >/dev/null + if [ $? == 0 ] ; then + eachslow=" -c " + CPU_SLOW=$CPU_SLOW$eachslow$cpu + fi + $TASKSET -part $cpu,$IMPLEMENTER,$PART_FAST >/dev/null + if [ $? == 0 ] ; then + eachfast=" -c " + CPU_FAST=$CPU_FAST$eachfast$cpu + fi + cpu=$((cpu+1)) + done + EACH_CPU="$CPU_SLOW$CPU_FAST" +} + +switch() +{ + if [ "$FREQ" -eq 0 ]; then + boot_a15 + else if [ "$FREQ" -eq 1 ]; then + boot_a7 + else + echo "Error: Unknown Operating frequency. Has to be set to either \"big\" or \"little\"" + usage + fi + fi +} + +boot_a15() +{ + echo "" + echo "Switching to big mode if not already in." + boot-a15.sh -c $CPU_NUM + ERR_CODE=$? + if [ $ERR_CODE -ne 0 ]; then + echo "boot-a15 failed. Abort!!" + exit 1 + fi +} + +boot_a7() +{ + echo "" + echo "Switching to little mode if not already in." + boot-a7.sh -c $CPU_NUM + ERR_CODE=$? + if [ $ERR_CODE -ne 0 ]; then + echo "boot-a7 failed. Abort!!" + exit 1 + fi +} + +disable_cpu() +{ + echo "" + echo "Taking CPU$DISABLE_CPU offline .." + STATUS=`cat /sys/devices/system/cpu/cpu$DISABLE_CPU/online` + if [ $STATUS -eq 1 ]; then + echo 0 > /sys/devices/system/cpu/cpu$DISABLE_CPU/online + else + echo "CPU$DISABLE_CPU already in offline mode." + fi +} + +enable_cpu() +{ + echo "" + echo "Bringing CPU$ENABLE_CPU online .." + STATUS=`cat /sys/devices/system/cpu/cpu$ENABLE_CPU/online` + if [ $STATUS -eq 0 ]; then + echo 1 > /sys/devices/system/cpu/cpu$ENABLE_CPU/online + else + echo "CPU$ENABLE_CPU already in online mode." + fi +} + +run_iozone() +{ + echo "" + echo "Running iozone -a -i 0 -i 2 -s 16m -V teststring" + iozone -a -i 0 -i 2 -s 16m -V teststring + ERR_CODE=$? + if [ $ERR_CODE -ne 0 ]; then + echo "iozone failed. Abort!!" + IO_STATUS=$ERR_CODE; + return 1 + else + echo "Iozone finished successfully" + return 0 + fi +} + +run_periodic_switcher() +{ + echo "" + echo "Starting bigLITTLE periodic switcher in the background" + if [ -z "$THREAD_CPU0" ]; then + bl-agitator -s $INTR & + BL_AGITATOR_PID=$! + else + echo "spawning thread(s) on specified cpu(s)" + echo "bl-agitator -n $EACH_CPU -s $INTR &" + bl-agitator -n $EACH_CPU -s $INTR & + BL_AGITATOR_PID=$! + fi + ERR_CODE=$? + if [ $ERR_CODE -ne 0 ]; then + echo "bigLITTLE periodic switcher failed. Abort!!" + SWITCHER_STATUS=$ERR_CODE; + return 1 + else + return 0 + fi +} + +run_random_switcher() +{ + echo "" + echo "Starting bigLITTLE random switcher in the background" + if [ -z "$THREAD_CPU0" ]; then + bl-agitator -r $SEED -l $LIMIT & + BL_AGITATOR_PID=$! + else + echo "spawning thread(s) on specified cpu(s)" + echo "bl-agitator -n $EACH_CPU -r $SEED -l $LIMIT &" + bl-agitator -n $EACH_CPU -r $SEED -l $LIMIT & + BL_AGITATOR_PID=$! + fi + ERR_CODE=$? + if [ $ERR_CODE -ne 0 ]; then + echo "bigLITTLE random switcher failed. Abort!!" + SWITCHER_STATUS=$ERR_CODE; + return 1 + else + return 0 + fi +} + + +simultaneous_thread_switcher() +{ + echo "" + echo "Starting bigLITTLE simultaneous thread switcher in the background" + if [ -z "$THREAD_CPU0" ]; then + bl-agitator -s $INTR & + BL_AGITATOR_PID=$! + else + echo "spawning thread(s) on specified cpu(s)" + echo "bl-agitator -n $EACH_CPU -s $INTR -S &" + bl-agitator -n $EACH_CPU -s $INTR -S & + BL_AGITATOR_PID=$! + fi + ERR_CODE=$? + if [ $ERR_CODE -ne 0 ]; then + echo "bigLITTLE simultaneous thread switcher failed. Abort!!" + SWITCHER_STATUS=$ERR_CODE; + return 1 + else + return 0 + fi +} + +kill_switcher() +{ + echo "" + ANDROID_MOD_PATH=/system/modules + UBUNTU_MOD_PATH=/lib/modules + if [ -d $ANDROID_MOD_PATH ]; then + PID_BL_CHECK=`ps | grep "$BL_AGITATOR_PID" | grep "bl-agitator" | awk '{print $2}'` + else if [ -d $UBUNTU_MOD_PATH ]; then + PID_BL_CHECK=`ps ax | grep "$BL_AGITATOR_PID" | grep "bl-agitator" | awk '{print $1}'` + else + echo "ERROR: Unexpected Environment " + exit 1 + fi + fi + echo "Kill bigLITTLE switcher BL_AGITATOR_PID $BL_AGITATOR_PID" + echo "PID_BL_CHECK= $PID_BL_CHECK" + + if [ -z "$PID_BL_CHECK" ]; then + echo "bigLITTLE switcher not running. Report Error!!" + exit 1 + else + # done with bl-agitator. Kill the process + echo "sending SIGTERM BL_AGITATOR_PID $BL_AGITATOR_PID" + kill $BL_AGITATOR_PID + if [ -d $ANDROID_MOD_PATH ]; then + PID_BL_CHECK_AGAIN=`ps | grep "$BL_AGITATOR_PID" | grep "bl-agitator" | awk '{print $2}'` + else if [ -d $UBUNTU_MOD_PATH ]; then + PID_BL_CHECK_AGAIN=`ps ax | grep "$BL_AGITATOR_PID" | grep "bl-agitator" | awk '{print $1}'` + else + echo "ERROR: Unexpected Environment " + exit 1 + fi + fi + if [ -n "$PID_BL_CHECK_AGAIN" ]; then + #if the above kill is not successfull. kill forcefully + echo "sending SIGKILL BL_AGITATOR_PID $BL_AGITATOR_PID" + kill -9 $BL_AGITATOR_PID > /dev/null 2>&1 + fi + fi +} + +if [ -z "$1" ]; then + usage +fi + +get_no_of_cpus + +while [ "$1" ]; do + case "$1" in + -f|--frequency) + if [ -z "$2" ]; then + echo "Error: Specify the operating frequency [big/little]" + usage + fi + if [ "$2" = "big" ]; then + FREQ=0; + shift; + else if [ "$2" = "little" ]; then + FREQ=1; + shift; + else + echo "Error: Operating frequency has to be set to either \"big\" or \"little\"" + usage + fi + fi + ;; + -c|--cpu-num) + if [ -z "$2" ]; then + echo "Error: Specify the CPU core (0-$large_cpu_number) to be switched to the desired frequency" + usage + fi + if [ $(echo "$2" | grep -E "^[0-$large_cpu_number]+$") ]; then + CPU_NUM=$2; + if [ -z "$FREQ" ]; then + echo "Error: Specify the operating frequency [big/little]" + usage + fi + switch + shift; + else + usage + fi + ;; + -s|--periodic-switching) + if [ -z "$RANDOM_SWITCH" ]; then + PERIODIC_SWITCH=y; + if [ "$2" -gt 0 ]; then + INTR=$2; + else + INTR=50; + fi + else + echo "Invalid option (-s) !!" + echo "Can't do random and periodic switchings simultaneously" + echo "Set to Random switching mode" + fi + shift; + ;; + -r|--random-switching) + if [ -z "$PERIODIC_SWITCH" ]; then + RANDOM_SWITCH=y; + if [ "$2" -gt 0 ]; then + SEED=$2; + else + SEED=100; + fi + else + echo "Invalid option (-r) !!" + echo "Can't do random and periodic switchings simultaneously" + echo "Set to Periodic switching mode" + fi + shift; + ;; + -l|--seed-limit) + if [ -z "$PERIODIC_SWITCH" ]; then + if [ -z "$SEED" ]; then + echo "Error: Specify the Seed for the random switcher [-r 100]" + usage + fi + if [ "$2" -gt 0 ]; then + LIMIT=$2; + else + LIMIT=1000; + fi + else + echo "Invalid option (-l) !!" + echo "Can't do random and periodic switchings simultaneously" + echo "Set to Periodic switching mode" + fi + shift; + ;; + -n|--thread-switching) + if [ $(echo "$2" | grep -E "^[0-$large_cpu_number]+$") ]; then + THREAD_CPU0="-c $2"; + shift; + else + echo "Error: Must specify at least one CPU on which thread has to be spawned" + usage + fi + shift; + ;; + -S|--simultaneous_thread_switching) + if [ -z "$RANDOM_SWITCH" ]; then + SIMULTANEOUS_THREAD_SWITCH=y; + else + echo "Invalid option (-S) !!" + echo "Can't do random and simultaneous thread switching at a time" + echo "Set to Random switching mode" + fi + ;; + -h | --help | *) + usage + ;; + esac + shift; +done + +if [ -z "$FREQ" ]; then + echo "Error: Frequency has to be set to either \"big\" or \"little\"" + usage +else if [ -z "$CPU_NUM" ]; then + echo "Error: Specify the number of CPU core (0-$large_cpu_number) to be switched to the desired frequency" + usage +fi +fi + +if [ "$PERIODIC_SWITCH" = "y" ]; then + if [ "$SIMULTANEOUS_THREAD_SWITCH" = "y" ]; then + echo "" + else + run_periodic_switcher + fi +fi + +if [ "$RANDOM_SWITCH" = "y" ]; then + if [ -z "$LIMIT" ]; then + echo "Error: Specify the Seed Limit for the random switcher [-l 1000]" + usage + fi + run_random_switcher +fi + +if [ "$SIMULTANEOUS_THREAD_SWITCH" = "y" ]; then + simultaneous_thread_switcher + cluster-status.sh $BL_AGITATOR_PID & +fi + +run_iozone + +if ([ "$PERIODIC_SWITCH" = "y" ] || [ "$RANDOM_SWITCH" = "y" ] || [ "$SIMULTANEOUS_THREAD_SWITCH" = "y" ]); then + kill_switcher +fi + +if ([ $IO_STATUS -ne 0 ] || [ $SWITCHER_STATUS -ne 0 ]); then + echo "Test failed. Abort!!" + exit 1 +fi + +KERNEL_ERR=`dmesg | grep "Unable to handle kernel "` +if ([ -n "$KERNEL_ERR" ]); then + echo "Kernel OOPS detected. Abort!!" + exit 1 +fi + +exit 0 |