diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-02-17 17:29:15 -0500 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-02-17 17:29:15 -0500 |
| commit | f8effd1a4a1833eac90261d78abacfaefe3d99e4 (patch) | |
| tree | 8ebecce9f6d5b0faf0efc3828b3b353561fd9341 /Documentation | |
| parent | 35010334aa007480a833401b80922299cb1a15ef (diff) | |
| parent | f9aa28adfc6a4b01268ebb6d88566cca8627905f (diff) | |
Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
doc: mmiotrace.txt, buffer size control change
trace: mmiotrace to the tracer menu in Kconfig
mmiotrace: count events lost due to not recording
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/tracers/mmiotrace.txt | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/Documentation/tracers/mmiotrace.txt b/Documentation/tracers/mmiotrace.txt index cde23b4a12a..5731c67abc5 100644 --- a/Documentation/tracers/mmiotrace.txt +++ b/Documentation/tracers/mmiotrace.txt | |||
| @@ -78,12 +78,10 @@ to view your kernel log and look for "mmiotrace has lost events" warning. If | |||
| 78 | events were lost, the trace is incomplete. You should enlarge the buffers and | 78 | events were lost, the trace is incomplete. You should enlarge the buffers and |
| 79 | try again. Buffers are enlarged by first seeing how large the current buffers | 79 | try again. Buffers are enlarged by first seeing how large the current buffers |
| 80 | are: | 80 | are: |
| 81 | $ cat /debug/tracing/trace_entries | 81 | $ cat /debug/tracing/buffer_size_kb |
| 82 | gives you a number. Approximately double this number and write it back, for | 82 | gives you a number. Approximately double this number and write it back, for |
| 83 | instance: | 83 | instance: |
| 84 | $ echo 0 > /debug/tracing/tracing_enabled | 84 | $ echo 128000 > /debug/tracing/buffer_size_kb |
| 85 | $ echo 128000 > /debug/tracing/trace_entries | ||
| 86 | $ echo 1 > /debug/tracing/tracing_enabled | ||
| 87 | Then start again from the top. | 85 | Then start again from the top. |
| 88 | 86 | ||
| 89 | If you are doing a trace for a driver project, e.g. Nouveau, you should also | 87 | If you are doing a trace for a driver project, e.g. Nouveau, you should also |