You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
102 lines
1.7 KiB
102 lines
1.7 KiB
4 months ago
|
#!/bin/bash
|
||
|
|
# SPDX-License-Identifier: GPL-2.0
|
||
|
|
|
||
|
|
# Kselftest framework requirement - SKIP code is 4.
|
||
|
|
ksft_skip=4
|
||
|
|
|
||
|
|
stress_fork()
|
||
|
|
{
|
||
|
|
while true ; do
|
||
|
|
/usr/bin/true
|
||
|
|
sleep 0.01
|
||
|
|
done
|
||
|
|
}
|
||
|
|
|
||
|
|
stress_subsys()
|
||
|
|
{
|
||
|
|
local verb=+
|
||
|
|
while true ; do
|
||
|
|
echo $verb$subsys_ctrl >$sysfs/cgroup.subtree_control
|
||
|
|
[ $verb = "+" ] && verb=- || verb=+
|
||
|
|
# incommensurable period with other stresses
|
||
|
|
sleep 0.011
|
||
|
|
done
|
||
|
|
}
|
||
|
|
|
||
|
|
init_and_check()
|
||
|
|
{
|
||
|
|
sysfs=`mount -t cgroup2 | head -1 | awk '{ print $3 }'`
|
||
|
|
if [ ! -d "$sysfs" ]; then
|
||
|
|
echo "Skipping: cgroup2 is not mounted" >&2
|
||
|
|
exit $ksft_skip
|
||
|
|
fi
|
||
|
|
|
||
|
|
if ! echo +$subsys_ctrl >$sysfs/cgroup.subtree_control ; then
|
||
|
|
echo "Skipping: cannot enable $subsys_ctrl in $sysfs" >&2
|
||
|
|
exit $ksft_skip
|
||
|
|
fi
|
||
|
|
|
||
|
|
if ! echo -$subsys_ctrl >$sysfs/cgroup.subtree_control ; then
|
||
|
|
echo "Skipping: cannot disable $subsys_ctrl in $sysfs" >&2
|
||
|
|
exit $ksft_skip
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
declare -a stresses
|
||
|
|
declare -a stress_pids
|
||
|
|
duration=5
|
||
|
|
rc=0
|
||
|
|
subsys_ctrl=cpuset
|
||
|
|
sysfs=
|
||
|
|
|
||
|
|
while getopts c:d:hs: opt; do
|
||
|
|
case $opt in
|
||
|
|
c)
|
||
|
|
subsys_ctrl=$OPTARG
|
||
|
|
;;
|
||
|
|
d)
|
||
|
|
duration=$OPTARG
|
||
|
|
;;
|
||
|
|
h)
|
||
|
|
echo "Usage $0 [ -s stress ] ... [ -d duration ] [-c controller] cmd args .."
|
||
|
|
echo -e "\t default duration $duration seconds"
|
||
|
|
echo -e "\t default controller $subsys_ctrl"
|
||
|
|
exit
|
||
|
|
;;
|
||
|
|
s)
|
||
|
|
func=stress_$OPTARG
|
||
|
|
if [ "x$(type -t $func)" != "xfunction" ] ; then
|
||
|
|
echo "Unknown stress $OPTARG"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
stresses+=($func)
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
shift $((OPTIND - 1))
|
||
|
|
|
||
|
|
init_and_check
|
||
|
|
|
||
|
|
for s in ${stresses[*]} ; do
|
||
|
|
$s &
|
||
|
|
stress_pids+=($!)
|
||
|
|
done
|
||
|
|
|
||
|
|
|
||
|
|
time=0
|
||
|
|
start=$(date +%s)
|
||
|
|
|
||
|
|
while [ $time -lt $duration ] ; do
|
||
|
|
$*
|
||
|
|
rc=$?
|
||
|
|
[ $rc -eq 0 ] || break
|
||
|
|
time=$(($(date +%s) - $start))
|
||
|
|
done
|
||
|
|
|
||
|
|
for pid in ${stress_pids[*]} ; do
|
||
|
|
kill -SIGTERM $pid
|
||
|
|
wait $pid
|
||
|
|
done
|
||
|
|
|
||
|
|
exit $rc
|