Hi Stanislav Am Freitag, 18. April 2014, 20:12:41 schrieb Stanislav Meduna: > On 18.04.2014 18:09, Tim Sander wrote: > > Are you sure that this is not the cpu idle latency? > > Don't think so. However it is close to what I'd expect as an average > idle time (capped up by periodic ticks @ 250 Hz = 4 ms). Have you tried patching out the wfi in the idle loop? At least the i.mx35 does some strange l2cache dance due to an hw bug. Patching out this whole stuff helped a lot with latencys on an unloaded system. Best regards Tim -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
