From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Mon, 8 Mar 2010 12:51:20 +0000 (+0100)
Subject: perf: Provide better condition for event rotation
X-Git-Tag: v2.6.34-rc2~19^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d4944a06666054707d23e11888e480af239e5abf;p=pandora-kernel.git

perf: Provide better condition for event rotation

Try to avoid useless rotation and PMU disables.

[ Could be improved by keeping a nr_runnable count to better account
  for the < PERF_STAT_INACTIVE counters ]

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: paulus@samba.org
Cc: eranian@google.com
Cc: robert.richter@amd.com
Cc: fweisbec@gmail.com
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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