diff options
| -rwxr-xr-x | common/scripts/is-cpu-isolated.sh | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/common/scripts/is-cpu-isolated.sh b/common/scripts/is-cpu-isolated.sh index ac93ae4..51610b9 100755 --- a/common/scripts/is-cpu-isolated.sh +++ b/common/scripts/is-cpu-isolated.sh @@ -211,21 +211,19 @@ isolate_cpu() { # Quiesce CPU: i.e. migrate timers/hrtimers away echo 1 > /dev/cpuset/dplane/$CPUSET_PREFIX"quiesce" - stress -q --cpu $ISOL_CPU --timeout $STRESS_DURATION & - # Restart $ISOL_CPU to migrate all tasks to CPU0 # Commented-out: as we should get good numbers without this HACK #echo 0 > /sys/devices/system/cpu/cpu$ISOL_CPU/online #echo 1 > /sys/devices/system/cpu/cpu$ISOL_CPU/online - # Try to move all processes in top set to the cplane set. - for pid in `ps h -C stress -o pid`; do - echo $pid > /dev/cpuset/dplane/tasks 2>/dev/null - if [ $? != 0 ]; then - isdebug echo -n "dplane: Cannot move PID $pid: " - isdebug echo "$(cat /proc/$pid/status | grep ^Name | cut -f2)" - fi - done + # Move shell to isolated CPU + echo $$ > /dev/cpuset/dplane/tasks + + # Start single cpu bound stress thread + stress -q --cpu 1 --timeout $STRESS_DURATION & + + # Move shell back to control plane CPU + echo $$ > /dev/cpuset/cplane/tasks } # routine to get CPU isolation time |