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authorArjan van de Ven <arjan@linux.intel.com>2009-09-12 07:52:47 +0200
committerIngo Molnar <mingo@elte.hu>2009-09-19 11:42:10 +0200
commit393b2ad8c757ba3ccd2a99ca5bbcd6db4d3fa53d (patch)
tree8972e2e9647c814e71be74d37adb85b18e9c6732 /include/linux/perf_counter.h
parent929bf0d0156562ce631728b6fa53d68004d456d2 (diff)
perf: Add a timestamp to fork events
perf timechart needs to know when a process forked, in order to be able to visualize properly when tasks start. This patch adds a time field to the event structure, and fills it in appropriately. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20090912130341.51ad2de2@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/perf_counter.h')
-rw-r--r--include/linux/perf_counter.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
index c7375f97aa19..bd341007c4fc 100644
--- a/include/linux/perf_counter.h
+++ b/include/linux/perf_counter.h
@@ -336,6 +336,7 @@ enum perf_event_type {
* struct perf_event_header header;
* u32 pid, ppid;
* u32 tid, ptid;
+ * u64 time;
* };
*/
PERF_EVENT_EXIT = 4,
@@ -356,6 +357,7 @@ enum perf_event_type {
* struct perf_event_header header;
* u32 pid, ppid;
* u32 tid, ptid;
+ * { u64 time; } && PERF_SAMPLE_TIME
* };
*/
PERF_EVENT_FORK = 7,