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authorGeunSik Lim <leemgs1@gmail.com>2009-09-07 21:37:17 +0900
committerGreg Kroah-Hartman <gregkh@suse.de>2009-09-15 09:50:48 -0700
commit52ad51e7a93558a218cd00059bd69881a82eb2bb (patch)
tree21c0c144e5aba7b111e6956773f89a384466bc19 /Documentation/trace/events.txt
parent4a351471df352474956f1fdc7bc4e7cf6836503a (diff)
debugfs: Fix mount directory of debugfs by default in events.txt
We need common default directory of denbugfs for consistency. (debugfs's default directory is /sys/kernel/debug/ by debugfs.) Signed-off-by: GeunSik Lim <geunsik.lim@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation/trace/events.txt')
-rw-r--r--Documentation/trace/events.txt24
1 files changed, 12 insertions, 12 deletions
diff --git a/Documentation/trace/events.txt b/Documentation/trace/events.txt
index 2bcc8d4dea29..90e8b3383ba2 100644
--- a/Documentation/trace/events.txt
+++ b/Documentation/trace/events.txt
@@ -22,12 +22,12 @@ tracing information should be printed.
---------------------------------
The events which are available for tracing can be found in the file
-/debug/tracing/available_events.
+/sys/kernel/debug/tracing/available_events.
To enable a particular event, such as 'sched_wakeup', simply echo it
-to /debug/tracing/set_event. For example:
+to /sys/kernel/debug/tracing/set_event. For example:
- # echo sched_wakeup >> /debug/tracing/set_event
+ # echo sched_wakeup >> /sys/kernel/debug/tracing/set_event
[ Note: '>>' is necessary, otherwise it will firstly disable
all the events. ]
@@ -35,15 +35,15 @@ to /debug/tracing/set_event. For example:
To disable an event, echo the event name to the set_event file prefixed
with an exclamation point:
- # echo '!sched_wakeup' >> /debug/tracing/set_event
+ # echo '!sched_wakeup' >> /sys/kernel/debug/tracing/set_event
To disable all events, echo an empty line to the set_event file:
- # echo > /debug/tracing/set_event
+ # echo > /sys/kernel/debug/tracing/set_event
To enable all events, echo '*:*' or '*:' to the set_event file:
- # echo *:* > /debug/tracing/set_event
+ # echo *:* > /sys/kernel/debug/tracing/set_event
The events are organized into subsystems, such as ext4, irq, sched,
etc., and a full event name looks like this: <subsystem>:<event>. The
@@ -52,29 +52,29 @@ file. All of the events in a subsystem can be specified via the syntax
"<subsystem>:*"; for example, to enable all irq events, you can use the
command:
- # echo 'irq:*' > /debug/tracing/set_event
+ # echo 'irq:*' > /sys/kernel/debug/tracing/set_event
2.2 Via the 'enable' toggle
---------------------------
-The events available are also listed in /debug/tracing/events/ hierarchy
+The events available are also listed in /sys/kernel/debug/tracing/events/ hierarchy
of directories.
To enable event 'sched_wakeup':
- # echo 1 > /debug/tracing/events/sched/sched_wakeup/enable
+ # echo 1 > /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable
To disable it:
- # echo 0 > /debug/tracing/events/sched/sched_wakeup/enable
+ # echo 0 > /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable
To enable all events in sched subsystem:
- # echo 1 > /debug/tracing/events/sched/enable
+ # echo 1 > /sys/kernel/debug/tracing/events/sched/enable
To eanble all events:
- # echo 1 > /debug/tracing/events/enable
+ # echo 1 > /sys/kernel/debug/tracing/events/enable
When reading one of these enable files, there are four results: