RT bandwidth causing gaps in the test

Posted Feb 4, 2011 3:36 UTC (Fri) by nevets (subscriber, #11875)
Parent article: Using KernelShark to analyze the real-time scheduler

An interesting note:

Those gaps you see in the last test run are caused by the RT bandwidth kicking in. If I perform the following:

  # echo -1 > /proc/sys/kernel/sched_rt_runtime_us

Those gaps disappear.