Messages in this thread |  | | | Subject | Re: [PATCH] perf_events: improve x86 event scheduling (v5) | | From | Peter Zijlstra <> | | Date | Mon, 18 Jan 2010 18:13:26 +0100 |
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On Mon, 2010-01-18 at 17:51 +0100, Frederic Weisbecker wrote:
> Right hw_perf_enable/disable have no action on breakpoint events. > These were somehow considered as software events until now. > > That raises the question: why perf_disable() only takes care > of hardware events? Very few software events can trigger > between perf_disable() and perf_enable() sections though. > > May be I should handle breakpoints there.
OK, so maybe I'm not understanding the breakpoint stuff correctly, why is it modeled as a software pmu? It has resource constraints like a hardware pmu.
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