Messages in this thread | | | Date | Fri, 8 Jul 2005 11:53:46 +0100 (WEST) | Subject | Re: realtime-preempt-2.6.12-final-V0.7.51-11 glitches [no more] | From | "Rui Nuno Capela" <> |
| |
> * Rui Nuno Capela <rncbc@rncbc.org> wrote: > >> OTOH, I'll take this chance to show you something that is annoying me >> for quite some time. Just look to the attached chart where I've marked >> the spot with an arrow and a question mark. Its just one example of a >> strange behavior/phenomenon while running the jack_test4.2 test on >> PREEMPT_RT kernels: the CPU usage, which stays normally around 50%, >> suddenly jumps to 60% steady, starting at random points in time but >> always some time after the test has been started. Note that this >> randomness surely adds to the the slight differences found on the >> above results. > > how long does this condition persist?
On all of my extensive tests, it persists on all of the remaining jack_test4 time span, doesn't matter how long it is.
I'll look later into your profiling and tracing instructions. Many thanks for the directions.
Seeya. -- rncbc aka Rui Nuno Capela rncbc@rncbc.org
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |