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authorJason Baron <jbaron@redhat.com>2009-02-26 10:11:05 -0500
committerIngo Molnar <mingo@elte.hu>2009-02-26 18:43:50 +0100
commitaf39241b90a345556b8884adff87096afe71b050 (patch)
treea913e3f15b1fb91555b5cb5899270274ce4c2c46 /kernel/trace
parent8656e7a2fa6afcd8682990f804a2a9674568738f (diff)
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')
-rw-r--r--kernel/trace/events.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/trace/events.c b/kernel/trace/events.c
index 38c89eef99e..3c75623893c 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>