What | Removed | Added |
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Attachment #872947 is obsolete | 1 |
Created attachment 873455 [details]
test 02 debug scripts, scheduling latency with ftrace
The full context switch trace showed that I made a mistake in my approach. The
scheduling latency reported by the test01 scripts is not real. Measuring
scheduling latency between the sched/sched_waking and raw_syscalls/sys_exit
tracepoints is a simplification that cannot be applied to qemu processes that
spend a long time in kernel mode (running the code executed by the vCPU) after
being worked up. I have started the test02 scripts on both openqaworker21 and
openqaworker24.