Hi all, I'm trying to find a solution for an "RT throttling" issue under relatively high load (20cps) on linux 3.10 and CPU Xeon E5-1650v2 (6cores). A similar jira ticket FS-8620 has a recommendation to set the clocksource to "hpet": echo hpet > /sys/devices/system/clocksource/clocksource0/current_clocksource I read somewhere that the default clocksource (TSC) is lighter in CPU usage because it only requires reading a register that is synchronized across all cores... Considering FreeSWITCH needs: -> Is HPET recommended over the default "TSC" clock? -> Does a change in clocksource have immediate effects or does it require an FS restart/reboot? -> Also, is it recommended to disable RT-throttling to resolve these types of issues? echo -1 >/proc/sys/kernel/sched_rt_runtime_us echo -1 >/proc/sys/kernel/sched_rt_period_us Thanks, François.