Messages in this thread |  | | | Subject | Re: [tip:perfcounters/core] perf_counter: x86: Fix call-chain support to use NMI-safe methods | | From | Peter Zijlstra <> | | Date | Mon, 15 Jun 2009 20:51:57 +0200 |
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On Mon, 2009-06-15 at 14:48 -0400, Mathieu Desnoyers wrote: > we should not care that much about the performance hit of > saving/restoring the cr2 register at each nmi entry/exit.
But we do, perf counters very much cares about nmi performance.
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