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Subject[tip:perf/urgent] perf tests: Compensate lower sample freq with longer test loop
Commit-ID:  3fe2130523b2e098085eb4d38cd5b737a97cbee6
Gitweb: http://git.kernel.org/tip/3fe2130523b2e098085eb4d38cd5b737a97cbee6
Author: Adrian Hunter <adrian.hunter@intel.com>
AuthorDate: Tue, 12 Nov 2013 11:45:21 -0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 12 Nov 2013 13:00:37 -0300

perf tests: Compensate lower sample freq with longer test loop

Doesn't work for me:

./perf test -v 19
19: Test software clock events have valid period values :
--- start ---
mmap size 528384B
mmap size 528384B
All (0) samples have period value of 1!
---- end ----
Test software clock events have valid period values: FAILED!

Compensate the lower freq introduced in 67c1e4a53b17 with a longer loop,

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/5281D3B8.2030104@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/tests/sw-clock.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/tests/sw-clock.c b/tools/perf/tests/sw-clock.c
index 93a7139..6664a7c 100644
--- a/tools/perf/tests/sw-clock.c
+++ b/tools/perf/tests/sw-clock.c
@@ -9,7 +9,7 @@
#include "util/cpumap.h"
#include "util/thread_map.h"

-#define NR_LOOPS 1000000
+#define NR_LOOPS 10000000

/*
* This test will open software clock events (cpu-clock, task-clock)

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