[tip:perfcounters/core] perf record: Print out the number of events captured

tip-bot for Ingo Molnar
2009-06-02T22:51:00Z

Commit-ID: addc2785ce92ff05da8edf18317b6b4719e10d9f
Gitweb: http://git.kernel.org/tip/addc2785ce92ff05da8edf18317b6b4719e10d9f
Author: Ingo Molnar <mingo@elte.hu>
AuthorDate: Tue, 2 Jun 2009 23:43:11 +0200
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 2 Jun 2009 23:43:11 +0200

perf record: Print out the number of events captured

It makes sense to inform the user about how many events
perf record has written - so that the sufficiency of
profiling coverage and intensity can be determined at
a glance.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

---
Documentation/perf_counter/builtin-record.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/Documentation/perf_counter/builtin-record.c b/Documentation/perf_counter/builtin-record.c
index 2741b35..ec3b73a 100644
--- a/Documentation/perf_counter/builtin-record.c
+++ b/Documentation/perf_counter/builtin-record.c
@@ -467,6 +467,9 @@ static int __cmd_record(int argc, const char **argv)
ret = poll(event_array, nr_poll, 100);
}

+
+ fprintf(stderr, "[ perf record: Captured and wrote %ld events. ]\n", events);
+
return 0;
}