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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-06-24 15:12:48 -0400
committerIngo Molnar <mingo@elte.hu>2009-06-25 15:39:08 -0400
commit649c48a9e7fafcc72bfcc99471d9dea98d789d59 (patch)
tree0e1e17e3c4f23d5238d650df87e16567f0e6bfb7 /tools/perf
parente6e18ec79b023d5fe84226cef533cf0e3770ce93 (diff)
perf-report: Add modes for inherited stats and no-samples
Now that we can collect per task statistics, add modes that make use of that facility. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/builtin-record.c19
1 files changed, 17 insertions, 2 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index f4f0240d2302..798a56d890e5 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -41,6 +41,8 @@ static int force = 0;
41static int append_file = 0; 41static int append_file = 0;
42static int call_graph = 0; 42static int call_graph = 0;
43static int verbose = 0; 43static int verbose = 0;
44static int inherit_stat = 0;
45static int no_samples = 0;
44 46
45static long samples; 47static long samples;
46static struct timeval last_read; 48static struct timeval last_read;
@@ -393,6 +395,12 @@ static void create_counter(int counter, int cpu, pid_t pid)
393 attr->sample_freq = freq; 395 attr->sample_freq = freq;
394 } 396 }
395 397
398 if (no_samples)
399 attr->sample_freq = 0;
400
401 if (inherit_stat)
402 attr->inherit_stat = 1;
403
396 if (call_graph) 404 if (call_graph)
397 attr->sample_type |= PERF_SAMPLE_CALLCHAIN; 405 attr->sample_type |= PERF_SAMPLE_CALLCHAIN;
398 406
@@ -571,7 +579,7 @@ static int __cmd_record(int argc, const char **argv)
571 } 579 }
572 } 580 }
573 581
574 while (!done) { 582 for (;;) {
575 int hits = samples; 583 int hits = samples;
576 584
577 for (i = 0; i < nr_cpu; i++) { 585 for (i = 0; i < nr_cpu; i++) {
@@ -579,8 +587,11 @@ static int __cmd_record(int argc, const char **argv)
579 mmap_read(&mmap_array[i][counter]); 587 mmap_read(&mmap_array[i][counter]);
580 } 588 }
581 589
582 if (hits == samples) 590 if (hits == samples) {
591 if (done)
592 break;
583 ret = poll(event_array, nr_poll, 100); 593 ret = poll(event_array, nr_poll, 100);
594 }
584 } 595 }
585 596
586 /* 597 /*
@@ -629,6 +640,10 @@ static const struct option options[] = {
629 "do call-graph (stack chain/backtrace) recording"), 640 "do call-graph (stack chain/backtrace) recording"),
630 OPT_BOOLEAN('v', "verbose", &verbose, 641 OPT_BOOLEAN('v', "verbose", &verbose,
631 "be more verbose (show counter open errors, etc)"), 642 "be more verbose (show counter open errors, etc)"),
643 OPT_BOOLEAN('s', "stat", &inherit_stat,
644 "per thread counts"),
645 OPT_BOOLEAN('n', "no-samples", &no_samples,
646 "don't sample"),
632 OPT_END() 647 OPT_END()
633}; 648};
634 649