diff options
author | David Vrabel <david.vrabel@csr.com> | 2008-12-08 11:18:47 -0500 |
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committer | David Vrabel <david.vrabel@csr.com> | 2008-12-08 11:18:47 -0500 |
commit | c35fa3ea1ae8198bd65c2c6e59d9ebd68c115a59 (patch) | |
tree | 878768b69df25459b448aa890352342c4a3c6e2d /Documentation/tracers/mmiotrace.txt | |
parent | dcc7461eef7341e84e2f7274f904ce01a43b2506 (diff) | |
parent | 218d11a8b071b23b76c484fd5f72a4fe3306801e (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream
Diffstat (limited to 'Documentation/tracers/mmiotrace.txt')
-rw-r--r-- | Documentation/tracers/mmiotrace.txt | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/tracers/mmiotrace.txt b/Documentation/tracers/mmiotrace.txt index 5bbbe2096223..cde23b4a12a1 100644 --- a/Documentation/tracers/mmiotrace.txt +++ b/Documentation/tracers/mmiotrace.txt | |||
@@ -37,7 +37,7 @@ $ echo mmiotrace > /debug/tracing/current_tracer | |||
37 | $ cat /debug/tracing/trace_pipe > mydump.txt & | 37 | $ cat /debug/tracing/trace_pipe > mydump.txt & |
38 | Start X or whatever. | 38 | Start X or whatever. |
39 | $ echo "X is up" > /debug/tracing/trace_marker | 39 | $ echo "X is up" > /debug/tracing/trace_marker |
40 | $ echo none > /debug/tracing/current_tracer | 40 | $ echo nop > /debug/tracing/current_tracer |
41 | Check for lost events. | 41 | Check for lost events. |
42 | 42 | ||
43 | 43 | ||
@@ -66,7 +66,7 @@ which action. It is recommended to place descriptive markers about what you | |||
66 | do. | 66 | do. |
67 | 67 | ||
68 | Shut down mmiotrace (requires root privileges): | 68 | Shut down mmiotrace (requires root privileges): |
69 | $ echo none > /debug/tracing/current_tracer | 69 | $ echo nop > /debug/tracing/current_tracer |
70 | The 'cat' process exits. If it does not, kill it by issuing 'fg' command and | 70 | The 'cat' process exits. If it does not, kill it by issuing 'fg' command and |
71 | pressing ctrl+c. | 71 | pressing ctrl+c. |
72 | 72 | ||
@@ -81,7 +81,9 @@ are: | |||
81 | $ cat /debug/tracing/trace_entries | 81 | $ cat /debug/tracing/trace_entries |
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/trace_entries | 85 | $ echo 128000 > /debug/tracing/trace_entries |
86 | $ echo 1 > /debug/tracing/tracing_enabled | ||
85 | Then start again from the top. | 87 | Then start again from the top. |
86 | 88 | ||
87 | If you are doing a trace for a driver project, e.g. Nouveau, you should also | 89 | If you are doing a trace for a driver project, e.g. Nouveau, you should also |