diff options
| author | Jason Baron <jbaron@redhat.com> | 2009-02-26 10:11:05 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-26 18:43:50 +0100 |
| commit | af39241b90a345556b8884adff87096afe71b050 (patch) | |
| tree | a913e3f15b1fb91555b5cb5899270274ce4c2c46 /kernel/trace/events.c | |
| parent | 8656e7a2fa6afcd8682990f804a2a9674568738f (diff) | |
| download | blackbird-op-linux-af39241b90a345556b8884adff87096afe71b050.tar.gz blackbird-op-linux-af39241b90a345556b8884adff87096afe71b050.zip | |
tracing, genirq: add irq enter and exit trace events
Impact: add new tracepoints
Add them to the generic IRQ code, that way every architecture
gets these new tracepoints, not just x86.
Using Steve's new 'TRACE_FORMAT', I can get function graph
trace as follows using the original two IRQ tracepoints:
3) | handle_IRQ_event() {
3) | /* (irq_handler_entry) irq=28 handler=eth0 */
3) | e1000_intr_msi() {
3) 2.460 us | __napi_schedule();
3) 9.416 us | }
3) | /* (irq_handler_exit) irq=28 handler=eth0 return=handled */
3) + 22.935 us | }
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Mathieu Desnoyers <compudj@krystal.dyndns.org>
Cc: "Frank Ch. Eigler" <fche@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/events.c')
| -rw-r--r-- | kernel/trace/events.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/trace/events.c b/kernel/trace/events.c index 38c89eef99ee..3c75623893cc 100644 --- a/kernel/trace/events.c +++ b/kernel/trace/events.c @@ -6,8 +6,10 @@ /* trace/<type>.h here */ #include <trace/sched.h> +#include <trace/irq.h> #include "trace_events.h" /* trace/<type>_event_types.h here */ #include <trace/sched_event_types.h> +#include <trace/irq_event_types.h> |
