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| author | Steven Rostedt (Red Hat) <rostedt@goodmis.org> | 2013-01-29 17:45:49 -0500 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-01-30 11:01:53 -0500 |
| commit | ad964704ba9326d027fc10fd0099b7c880e50172 (patch) | |
| tree | e08884c0f383e5b954233c323df67a3d726b6537 /include | |
| parent | 03274a3ffb449632970fdd35da72ea41cf8474da (diff) | |
| download | linux-stable-ad964704ba9326d027fc10fd0099b7c880e50172.tar.gz linux-stable-ad964704ba9326d027fc10fd0099b7c880e50172.tar.bz2 linux-stable-ad964704ba9326d027fc10fd0099b7c880e50172.zip | |
ring-buffer: Add stats field for amount read from trace ring buffer
Add a stat about the number of events read from the ring buffer:
# cat /debug/tracing/per_cpu/cpu0/stats
entries: 39869
overrun: 870512
commit overrun: 0
bytes: 1449912
oldest event ts: 6561.368690
now ts: 6565.246426
dropped events: 0
read events: 112 <-- Added
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ring_buffer.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h index 519777e3fa01..1342e69542f3 100644 --- a/include/linux/ring_buffer.h +++ b/include/linux/ring_buffer.h @@ -167,6 +167,7 @@ unsigned long ring_buffer_entries_cpu(struct ring_buffer *buffer, int cpu); unsigned long ring_buffer_overrun_cpu(struct ring_buffer *buffer, int cpu); unsigned long ring_buffer_commit_overrun_cpu(struct ring_buffer *buffer, int cpu); unsigned long ring_buffer_dropped_events_cpu(struct ring_buffer *buffer, int cpu); +unsigned long ring_buffer_read_events_cpu(struct ring_buffer *buffer, int cpu); u64 ring_buffer_time_stamp(struct ring_buffer *buffer, int cpu); void ring_buffer_normalize_time_stamp(struct ring_buffer *buffer, |