From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Thu, 5 Mar 2009 00:49:22 +0000 (+0100)
Subject: tracing/function-graph-tracer: use the more lightweight local clock
X-Git-Tag: v2.6.30-rc1~2^2~65^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0012693ad4f636c720fed3802027f9427962f540;p=pandora-kernel.git

tracing/function-graph-tracer: use the more lightweight local clock

Impact: decrease hangs risks with the graph tracer on slow systems

Since the function graph tracer can spend too much time on timer
interrupts, it's better now to use the more lightweight local
clock. Anyway, the function graph traces are more reliable on a
per cpu trace.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <49af243d.06e9300a.53ad.ffff840c@mx.google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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