Messages in this thread | | | Date | Tue, 25 Aug 2009 16:12:15 +0800 | From | Zhaolei <> | Subject | [PATCH 0/3] ftrace: Add timer-source of walltime for ftrace |
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Hi,
I finished this patchset to enable ftrace display walltime.
We can get following output by using it: # cd /mnt/debugfs/tracing/ # cat trace_clock [local] global walltime # echo sched_switch > current_tracer # cat trace # tracer: sched_switch # # TASK-PID CPU# TIMESTAMP FUNCTION # | | | | | bash-3580 [000] 2916.188093: 3580:120:S + [000] 3580:120:S bash bash-3580 [000] 2916.188205: 3580:120:S + [000] 3580:120:S bash bash-3580 [000] 2916.188538: 3580:120:R + [000] 5:115:S events/0 bash-3580 [000] 2916.188599: 3580:120:R ==> [000] 5:115:R events/0 events/0-5 [000] 2916.188669: 5:115:S ==> [000] 3580:120:R bash ... # echo walltime > trace_clock # cat trace # tracer: sched_switch # # TASK-PID CPU# TIMESTAMP FUNCTION # | | | | | bash-3580 [000] 2009-08-24 18:03:16.500705: 3580:120:S + [000] 3580:120:S bash bash-3580 [000] 2009-08-24 18:03:16.500815: 3580:120:S + [000] 3580:120:S bash bash-3580 [000] 2009-08-24 18:03:16.500815: 3580:120:S + [000] 3580:120:S bash bash-3580 [000] 2009-08-24 18:03:16.500815: 3580:120:S ==> [000] 5:115:R events/0 events/0-5 [000] 2009-08-24 18:03:16.500815: 5:115:R + [000] 3578:120:S sshd ...
This patchset merged suggestion of Steven, Frederic and Kosaki-san on last RFC.
Thanks Zhaolei
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