Re: [Xenomai-core] native syscalls
Steven Seeger wrote: Can xenomai preempt its own system calls? We ran latency with our app. We had a thread waiting on a cond, and when we signaled that cond, the latency jumped from ~70us to almost 400us even though latency runs a higher priority thread than the thread that we wake up. Is there interrupt disabling that accounts for this? Here are the results as taken by Mark S. As I told you in a voluntarily detailed private mail, only the traces made by the I-pipe tracer are of any interest for us. -- Gilles. ___ Xenomai-core mailing list Xenomai-core@gna.org https://mail.gna.org/listinfo/xenomai-core
Re: [Xenomai-core] geode gx1 latencies
Mark Saiia wrote: Gilles and list, I have tested out your latest patch with 2.4maint, 2.627.19. It appears to work fine, no crashes related to 3dnow and no floating point issues. However, we are observing rather high latencies. This is without the hack described in the above thread. /proc/xenomai/timer shows clockdev as tsc. At around 2.5 minutes , I did an ls in a while loop over a telnet connection in order to raise cpu usage to 22%. Appended are the latency results. The latency results do not tell us much. Please send us traces made by the I-pipe tracer. -- Gilles. ___ Xenomai-core mailing list Xenomai-core@gna.org https://mail.gna.org/listinfo/xenomai-core
