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authorIngo Molnar <mingo@elte.hu>2009-09-03 12:00:22 +0200
committerIngo Molnar <mingo@elte.hu>2009-09-03 15:45:49 +0200
commit6ddf259da76cab6555c2086386f8bcd10bbb86d2 (patch)
tree5f0b4a8eab0ffd31a72366e94ee7b7ba525066ee /tools/perf
parent0fbdea19e9394a5cb5f2f5081b028c50b558910a (diff)
downloadop-kernel-dev-6ddf259da76cab6555c2086386f8bcd10bbb86d2.zip
op-kernel-dev-6ddf259da76cab6555c2086386f8bcd10bbb86d2.tar.gz
perf trace: Sample timestamps as well
Before: perf-21082 [013] 0.000000: sched_wakeup_new: task perf:21083 [120] success=1 [015] perf-21082 [013] 0.000000: sched_migrate_task: task perf:21082 [120] from: 13 to: 15 perf-21082 [013] 0.000000: sched_process_fork: parent perf:21082 child perf:21083 true-21083 [015] 0.000000: sched_wakeup: task migration/15:33 [0] success=1 [015] perf-21082 [013] 0.000000: sched_switch: task perf:21082 [120] (S) ==> swapper:0 [140] true-21083 [015] 0.000000: sched_switch: task perf:21083 [120] (R) ==> migration/15:33 [0] true-21083 [011] 0.000000: sched_process_exit: task true:21083 [120] After: perf-21082 [013] 14674.797613: sched_wakeup_new: task perf:21083 [120] success=1 [015] perf-21082 [013] 14674.797506: sched_migrate_task: task perf:21082 [120] from: 13 to: 15 perf-21082 [013] 14674.797610: sched_process_fork: parent perf:21082 child perf:21083 true-21083 [015] 14674.797725: sched_wakeup: task migration/15:33 [0] success=1 [015] perf-21082 [013] 14674.797722: sched_switch: task perf:21082 [120] (S) ==> swapper:0 [140] true-21083 [015] 14674.797729: sched_switch: task perf:21083 [120] (R) ==> migration/15:33 [0] true-21083 [011] 14674.798159: sched_process_exit: task true:21083 [120] Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/builtin-record.c1
-rw-r--r--tools/perf/builtin-trace.c8
2 files changed, 8 insertions, 1 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index ff93f8e..99a12fe 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -404,6 +404,7 @@ static void create_counter(int counter, int cpu, pid_t pid)
attr->sample_type |= PERF_SAMPLE_CALLCHAIN;
if (raw_samples) {
+ attr->sample_type |= PERF_SAMPLE_TIME;
attr->sample_type |= PERF_SAMPLE_RAW;
attr->sample_type |= PERF_SAMPLE_CPU;
}
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index bbe4c44..d59bf8a 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -58,6 +58,7 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head)
struct dso *dso = NULL;
struct thread *thread;
u64 ip = event->ip.ip;
+ u64 timestamp = -1;
u32 cpu = -1;
u64 period = 1;
void *more_data = event->ip.__more_data;
@@ -65,6 +66,11 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head)
thread = threads__findnew(event->ip.pid, &threads, &last_match);
+ if (sample_type & PERF_SAMPLE_TIME) {
+ timestamp = *(u64 *)more_data;
+ more_data += sizeof(u64);
+ }
+
if (sample_type & PERF_SAMPLE_CPU) {
cpu = *(u32 *)more_data;
more_data += sizeof(u32);
@@ -127,7 +133,7 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head)
* field, although it should be the same than this perf
* event pid
*/
- print_event(cpu, raw->data, raw->size, 0, thread->comm);
+ print_event(cpu, raw->data, raw->size, timestamp, thread->comm);
}
total += period;
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