[lkml]   [2009]   [Jun]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [tip:perfcounters/core] perf_counter: x86: Fix call-chain support to use NMI-safe methods
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.

 \ /
  Last update: 2009-06-15 20:55    [W:0.129 / U:24.036 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site