Messages in this thread | | | Date | Sat, 8 Sep 2012 15:06:50 +0200 | From | Frederic Weisbecker <> | Subject | Re: [PATCH 1/7] perf: Enable function tracing for perf core |
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On Sat, Sep 08, 2012 at 07:55:16AM -0400, Steven Rostedt wrote: > According to Steven R. there is no reason left to not support > function tracing for the perf core. This makes it easier to debug > perf. > > Don't remove -pg for the x86 and generic perf core.
Actually, perf can use function tracing. A good reason for disabling function tracing in perf is to avoid the overhead of recursive function tracing, even though we are protected against tracing re-entrancy, this still result in some overhead.
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