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r: 119416
b: refs/heads/master
c: fb91ee6
h: refs/heads/master
v: v3
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Pekka Paalanen authored and Ingo Molnar committed Nov 23, 2008
1 parent 973c84a commit 5603e93
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: 7ee1768ddb3075ae3a0801cc2d0ea4195530a7db
refs/heads/master: fb91ee6cf5b8be5360acec577458e29ec7e97e5e
6 changes: 4 additions & 2 deletions trunk/Documentation/tracers/mmiotrace.txt
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Expand Up @@ -37,7 +37,7 @@ $ echo mmiotrace > /debug/tracing/current_tracer
$ cat /debug/tracing/trace_pipe > mydump.txt &
Start X or whatever.
$ echo "X is up" > /debug/tracing/trace_marker
$ echo none > /debug/tracing/current_tracer
$ echo nop > /debug/tracing/current_tracer
Check for lost events.


Expand Down Expand Up @@ -66,7 +66,7 @@ which action. It is recommended to place descriptive markers about what you
do.

Shut down mmiotrace (requires root privileges):
$ echo none > /debug/tracing/current_tracer
$ echo nop > /debug/tracing/current_tracer
The 'cat' process exits. If it does not, kill it by issuing 'fg' command and
pressing ctrl+c.

Expand All @@ -81,7 +81,9 @@ are:
$ cat /debug/tracing/trace_entries
gives you a number. Approximately double this number and write it back, for
instance:
$ echo 0 > /debug/tracing/tracing_enabled
$ echo 128000 > /debug/tracing/trace_entries
$ echo 1 > /debug/tracing/tracing_enabled
Then start again from the top.

If you are doing a trace for a driver project, e.g. Nouveau, you should also
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