On Wed, 2008-01-23 at 15:53 +0100, Luotao Fu wrote: > I was doing some tests on my mpc5200b Board to reproduce the high latency as > measured by wolfgang. > > I ran some tests with > while [ 1 ]; do ls /bin;done > as non-rt workload, as in Wolfgangs Scenario. >
Can you try enabling CRITICAL_PREEMPT_TIMING only, and not latency tracing .. You won't get a trace, but you will get some indication of the start/stop points of the latency if it's preempt latency, and a measurement of the longest latency.. Daniel -- 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/
