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Diffstat (limited to 'Documentation/trace/kprobetrace.txt')
| -rw-r--r-- | Documentation/trace/kprobetrace.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt index 5e59e854e71b..3de751747164 100644 --- a/Documentation/trace/kprobetrace.txt +++ b/Documentation/trace/kprobetrace.txt | |||
| @@ -70,6 +70,14 @@ filter: | |||
| 70 | names and field names for describing filters. | 70 | names and field names for describing filters. |
| 71 | 71 | ||
| 72 | 72 | ||
| 73 | Event Profiling | ||
| 74 | --------------- | ||
| 75 | You can check the total number of probe hits and probe miss-hits via | ||
| 76 | /sys/kernel/debug/tracing/kprobe_profile. | ||
| 77 | The first column is event name, the second is the number of probe hits, | ||
| 78 | the third is the number of probe miss-hits. | ||
| 79 | |||
| 80 | |||
| 73 | Usage examples | 81 | Usage examples |
| 74 | -------------- | 82 | -------------- |
| 75 | To add a probe as a new event, write a new definition to kprobe_events | 83 | To add a probe as a new event, write a new definition to kprobe_events |