Messages in this thread | | | Subject | Re: [PATCH 1/4] tracing: Use the perf recursion protection from trace event | From | Peter Zijlstra <> | Date | Sun, 22 Nov 2009 17:50:45 +0100 |
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On Sun, 2009-11-22 at 17:37 +0100, Frederic Weisbecker wrote:
> That's cleaner but adds an unnecessary overhead in the trace event > path. We already disable the interrupts there. That's why I preferred > to let the caller decide.
The trace path is already far from optimal, so I'd rather penalize that than the regular swcounter path.
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