On Fri, 6 Apr 2007 11:08:22 +0200 Ingo Molnar <[EMAIL PROTECTED]> wrote:
> * Andrew Morton <[EMAIL PROTECTED]> wrote: > > > > getting a good trace of it is easy: pick up the latest -rt kernel > > > from: > > > > > > http://redhat.com/~mingo/realtime-preempt/ > > > > > > enable EVENT_TRACING in that kernel, run the workload and do: > > > > > > scripts/trace-it > to-ingo.txt > > > > > > and send me the output. > > > > Did that - no output was generated. config at > > http://userweb.kernel.org/~akpm/config-akpm2.txt > > sorry, i forgot to mention that you should turn off > CONFIG_WAKEUP_TIMING. > > 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. - 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/
