diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-04-02 11:12:01 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-04-06 09:30:45 +0200 |
| commit | c457810ab4a825161aec6ef71b581e1bc8febd1a (patch) | |
| tree | eccb22f8c868c4d8807657658027261eb97ed37f /include/linux | |
| parent | 8a057d84912f36e53f970c4d177cb4bb6b2f9e08 (diff) | |
perf_counter: per event wakeups
By request, provide a way to request a wakeup every 'n' events instead
of every page of output.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Orig-LKML-Reference: <20090402091319.323309784@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/perf_counter.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h index 06a6fba9f53..5428ba120d7 100644 --- a/include/linux/perf_counter.h +++ b/include/linux/perf_counter.h @@ -145,7 +145,7 @@ struct perf_counter_hw_event { __reserved_1 : 53; __u32 extra_config_len; - __u32 __reserved_4; + __u32 wakeup_events; /* wakeup every n events */ __u64 __reserved_2; __u64 __reserved_3; @@ -321,6 +321,7 @@ struct perf_mmap_data { int nr_pages; atomic_t wakeup; atomic_t head; + atomic_t events; struct perf_counter_mmap_page *user_page; void *data_pages[0]; }; |