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authorGeunsik Lim <[email protected]>2012-02-08 19:05:37 +0900
committerSteven Rostedt <[email protected]>2012-02-13 09:14:48 -0500
commitcdfb0d30e943f36c8a074a26c3d168a05bdbb372 (patch)
treecfabc4b116ad1601a2df8303c3e3a9974b0387df
parent1e42e83fde5537266c1d1e7fd8c010b3028d50fc (diff)
ftrace: Append wakeup_rt description of ftrace doc
Append and update the description about wakeup/wakeup_rt usage. Link: http://lkml.kernel.org/r/[email protected] Cc: Randy Dunlap <[email protected]> Signed-off-by: Geunsik Lim <[email protected]> Signed-off-by: Steven Rostedt <[email protected]>
-rw-r--r--Documentation/trace/ftrace.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt
index 1ebc24cf9a55..6f51fed45f2d 100644
--- a/Documentation/trace/ftrace.txt
+++ b/Documentation/trace/ftrace.txt
@@ -226,6 +226,13 @@ Here is the list of current tracers that may be configured.
Traces and records the max latency that it takes for
the highest priority task to get scheduled after
it has been woken up.
+ Traces all tasks as an average developer would expect.
+
+ "wakeup_rt"
+
+ Traces and records the max latency that it takes for just
+ RT tasks (as the current "wakeup" does). This is useful
+ for those interested in wake up timings of RT tasks.
"hw-branch-tracer"