Messages in this thread | | | Date | Thu, 22 Jan 2009 10:29:42 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH 1/5] trace: do not disable wake up tracer on output of trace |
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* Ingo Molnar <mingo@elte.hu> wrote:
> auto-disabling latency tracing while the trace is being output is > essential. Measurement should never impact the workload that is being > measured.
On the other hand - the latencies caused by tracing output itself should be quite low, correct? If not then that needs fixing too. So i've picked up your change - lets see how useful the result is.
But "if it hurts, disable tracing before reading the tracing result" method you expressed is really not acceptable.
Ingo
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