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author | Steven Rostedt <srostedt@redhat.com> | 2009-09-11 00:30:26 -0400 |
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committer | Steven Rostedt <rostedt@goodmis.org> | 2009-09-11 10:59:49 -0400 |
commit | 49ff590390a22c49e9063dcdec4cd5903127526b (patch) | |
tree | f30913673a9d89d2f67cdafeed03afe127511713 /include/video | |
parent | fc06b8520b3bf9aaeb2e27debe6719c215bd4916 (diff) |
tracing: add latency format to function_graph tracer
While debugging something with the function_graph tracer, I found the
need to see the preempt count of the traces. Unfortunately, since
the function graph tracer has its own output formatting, it does not
honor the latency-format option.
This patch makes the function_graph tracer honor the latency-format
option, but still keeps control of the output. But now we have the
same details that the latency-format supplies.
# tracer: function_graph
#
# _-----=> irqs-off
# / _----=> need-resched
# | / _---=> hardirq/softirq
# || / _--=> preempt-depth
# ||| /
# ||||
# CPU|||| DURATION FUNCTION CALLS
# | |||| | | | | | |
3) d..1 1.333 us | idle_cpu();
3) d.h1 | tick_check_idle() {
3) d.h1 0.550 us | tick_check_oneshot_broadcast();
3) d.h1 | tick_nohz_stop_idle() {
3) d.h1 | ktime_get() {
3) d.h1 | ktime_get_ts() {
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'include/video')
0 files changed, 0 insertions, 0 deletions