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authorDavid Vrabel <david.vrabel@csr.com>2008-12-08 11:18:47 -0500
committerDavid Vrabel <david.vrabel@csr.com>2008-12-08 11:18:47 -0500
commitc35fa3ea1ae8198bd65c2c6e59d9ebd68c115a59 (patch)
tree878768b69df25459b448aa890352342c4a3c6e2d /Documentation/tracers/mmiotrace.txt
parentdcc7461eef7341e84e2f7274f904ce01a43b2506 (diff)
parent218d11a8b071b23b76c484fd5f72a4fe3306801e (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.txt6
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 &
38Start X or whatever. 38Start 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
41Check for lost events. 41Check for lost events.
42 42
43 43
@@ -66,7 +66,7 @@ which action. It is recommended to place descriptive markers about what you
66do. 66do.
67 67
68Shut down mmiotrace (requires root privileges): 68Shut down mmiotrace (requires root privileges):
69$ echo none > /debug/tracing/current_tracer 69$ echo nop > /debug/tracing/current_tracer
70The 'cat' process exits. If it does not, kill it by issuing 'fg' command and 70The 'cat' process exits. If it does not, kill it by issuing 'fg' command and
71pressing ctrl+c. 71pressing ctrl+c.
72 72
@@ -81,7 +81,9 @@ are:
81$ cat /debug/tracing/trace_entries 81$ cat /debug/tracing/trace_entries
82gives you a number. Approximately double this number and write it back, for 82gives you a number. Approximately double this number and write it back, for
83instance: 83instance:
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
85Then start again from the top. 87Then start again from the top.
86 88
87If you are doing a trace for a driver project, e.g. Nouveau, you should also 89If you are doing a trace for a driver project, e.g. Nouveau, you should also