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| author | Jiri Olsa <jolsa@redhat.com> | 2011-06-03 16:58:50 +0200 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2011-06-14 22:48:49 -0400 |
| commit | 199abfab40389963b397c2982222e68ea782b2cf (patch) | |
| tree | 4b3707a3c8266f151ed1cd72be286ccc7dc16b81 /kernel/trace/trace_events.c | |
| parent | f56e7f8efb4ec200364f690a9902713410e24d47 (diff) | |
| download | lwn-199abfab40389963b397c2982222e68ea782b2cf.tar.gz lwn-199abfab40389963b397c2982222e68ea782b2cf.zip | |
tracing, function_graph: Remove lock-depth from latency trace
The lock_depth was removed in commit
e6e1e25 tracing: Remove lock_depth from event entry
Removing the lock_depth info from function_graph latency header.
With following commands:
# echo function_graph > ./current_tracer
# echo 1 > options/latency-format
# cat trace
This is what it looked like before:
# tracer: function_graph
#
# function_graph latency trace v1.1.5 on 3.0.0-rc1-tip+
# --------------------------------------------------------------------
# latency: 0 us, #59756/311298, CPU#0 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:2)
# -----------------
# | task: -0 (uid:0 nice:0 policy:0 rt_prio:0)
# -----------------
#
# _-----=> irqs-off
# / _----=> need-resched
# | / _---=> hardirq/softirq
# || / _--=> preempt-depth
# ||| / _-=> lock-depth
# |||| /
# CPU||||| DURATION FUNCTION CALLS
# | ||||| | | | | | |
0) .... 0.068 us | } /* __rcu_read_unlock */
...
This is what it looks like now:
# tracer: function_graph
#
# function_graph latency trace v1.1.5 on 3.0.0-rc1-tip+
# --------------------------------------------------------------------
# latency: 0 us, #59747/1744610, CPU#0 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:2)
# -----------------
# | task: -0 (uid:0 nice:0 policy:0 rt_prio:0)
# -----------------
#
# _-----=> irqs-off
# / _----=> need-resched
# | / _---=> hardirq/softirq
# || / _--=> preempt-depth
# ||| /
# CPU|||| DURATION FUNCTION CALLS
# | |||| | | | | | |
0) ..s. 1.641 us | } /* __rcu_process_callbacks */
...
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1307113131-10045-5-git-send-email-jolsa@redhat.com
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_events.c')
0 files changed, 0 insertions, 0 deletions