* Andrew Morton <[EMAIL PROTECTED]> wrote: > > i've attached an updated version of trace-it.c, which will turn this > > off itself, using a sysctl. I also made WAKEUP_TIMING default-off. > > ok. http://userweb.kernel.org/~akpm/to-ingo.txt is the trace of > > taskset -c 0 ./jakubs-test-app > > while the system was doing the 150,000 context switches/sec. > > It isn't very interesting.
this shows an idle CPU#7: you should taskset -c 0 trace-it too - it only traces the current CPU by default. (there's the /proc/sys/kernel/trace_all_cpus flag to trace all cpus, but in this case we really want the trace of CPU#0) Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/