Messages in this thread | | | Subject | Re: 2.6.24-rc8-rt1: Strange latencies on mpc5200 powerpc | From | Daniel Walker <> | Date | Wed, 23 Jan 2008 07:50:19 -0800 |
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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
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