perf report: Add front-entry cache for lookups
authorIngo Molnar <mingo@elte.hu>
Wed, 3 Jun 2009 17:59:24 +0000 (19:59 +0200)
committerIngo Molnar <mingo@elte.hu>
Wed, 3 Jun 2009 18:03:32 +0000 (20:03 +0200)
commiteed4dcd443da7a46131ef37c7a389b444905960e
treef9dfab55e3f14c956ec1d4e3f85487d3258962ef
parent44db76c8553c328f4ae02481d77bb3a88ca17645
perf report: Add front-entry cache for lookups

Before:

 Performance counter stats for './perf report -i perf.data.big':

     12453988058  instructions

 Performance counter stats for './perf report -i perf.data.big':

     12379566017  instructions

0.60% reduction.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Documentation/perf_counter/builtin-report.c