diff options
| author | Joel Fernandes <joelaf@google.com> | 2017-10-10 15:51:37 -0700 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2017-10-10 18:58:43 -0400 |
| commit | d59158162e032917a428704160a2063a02405ec6 (patch) | |
| tree | 8caf4e79a232898372d6010a1a4a6b553c2950e4 /scripts | |
| parent | aaecaa0b5f31794f1711247da4b5883a6ff98163 (diff) | |
| download | op-kernel-dev-d59158162e032917a428704160a2063a02405ec6.zip op-kernel-dev-d59158162e032917a428704160a2063a02405ec6.tar.gz | |
tracing: Add support for preempt and irq enable/disable events
Preempt and irq trace events can be used for tracing the start and
end of an atomic section which can be used by a trace viewer like
systrace to graphically view the start and end of an atomic section and
correlate them with latencies and scheduling issues.
This also serves as a prelude to using synthetic events or probes to
rewrite the preempt and irqsoff tracers, along with numerous benefits of
using trace events features for these events.
Link: http://lkml.kernel.org/r/20171006005432.14244-3-joelaf@google.com
Link: http://lkml.kernel.org/r/20171010225137.17370-1-joelaf@google.com
Cc: Peter Zilstra <peterz@infradead.org>
Cc: kernel-team@android.com
Signed-off-by: Joel Fernandes <joelaf@google.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions
