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(parent: af4617b) | patch
tracing: optimization of branch tracer
authorWitold Baryluk <baryluk@smp.if.uj.edu.pl>
Tue, 17 Mar 2009 20:15:44 +0000 (21:15 +0100)
committerSteven Rostedt <srostedt@redhat.com>
Wed, 18 Mar 2009 03:10:43 +0000 (23:10 -0400)
commit97e7e4f391cac2b00417b581b432533d245d4fd0
treed51d4776962f5838f4cb4cc804d2c94db185527dtree | snapshot
parentaf4617bdba34aa556272b34c3986b0a4d588f568commit | diff
tracing: optimization of branch tracer

Impact: better performance for if branch tracer

Use an array to count the hit and misses of a conditional instead
of using another conditional. This cuts down on saturation of branch
predictions and increases performance of modern pipelined architectures.

Signed-off-by: Witold Baryluk <baryluk@smp.if.uj.edu.pl>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
include/linux/compiler.h diff | blob | history
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