commit 9ee318a7825929bc3734110b83ae8e20e53d9de3
author Peter Zijlstra <a.p.zijlstra@chello.nl> Thu Apr 09 10:53:44 2009 +0200
committer Ingo Molnar <mingo@elte.hu> Thu Apr 09 11:50:43 2009 +0200
tree 4823b4e82bb99971559d3569c7f4d710ac7f232d
parent b3828ebb3901adfe989d8d4157ed28247aeec132

perf_counter: optimize mmap/comm tracking

Impact: performance optimization

The mmap/comm tracking code does quite a lot of work before it discovers
there's no interest in it, avoid that by keeping a counter.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
LKML-Reference: <20090409085524.427173196@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>