| commit | 38b200d67636a30cb8dc1508137908e7a649b5c9 | [log] [tgz] |
|---|---|---|
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | Tue Jun 23 20:13:11 2009 +0200 |
| committer | Ingo Molnar <mingo@elte.hu> | Thu Jun 25 21:39:07 2009 +0200 |
| tree | 74f88d57a7f55075d4cd0b46690ff4b319dca642 | |
| parent | 194002b274e9169a04beb1b23dcc132159bb566c [diff] |
perf_counter: Add PERF_EVENT_READ Provide a read() like event which can be used to log the counter value at specific sites such as child->parent folding on exit. In order to be useful, we log the counter parent ID, not the actual counter ID, since userspace can only relate parent IDs to perf_counter_attr constructs. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>