[igt-dev] [PATCH i-g-t 1/3] tests/perf: Use poll oa period minimum of 5 ms

[Umesh Nerlige Ramappa]

The cpu overhead measured in these tests is based on heurisitcs
determined for the default 5 ms hrtimer in the driver over a span of
several platforms. Limit tests to use a poll oa period >= 5ms.

Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa at intel.com>
---
 tests/perf.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/perf.c b/tests/perf.c
index 152d48a7..ca12090a 100644
--- a/tests/perf.c
+++ b/tests/perf.c
@@ -4972,7 +4972,7 @@ igt_main
 			      40 * 1000 * 1000 /* default 40ms hrtimer */);
 		test_blocking(500 * 1000 /* 500us oa period */,
 			      true /* set_kernel_hrtimer */,
-			      2 * 1000 * 1000 /* default 2ms hrtimer */);
+			      5 * 1000 * 1000 /* default 2ms hrtimer */);
 	}
 
 	igt_describe("Test polled read with default hrtimer frequency");
@@ -4991,7 +4991,7 @@ igt_main
 			     40 * 1000 * 1000 /* default 40ms hrtimer */);
 		test_polling(500 * 1000 /* 500us oa period */,
 			     true /* set_kernel_hrtimer */,
-			     2 * 1000 * 1000 /* default 2ms hrtimer */);
+			     5 * 1000 * 1000 /* default 2ms hrtimer */);
 	}
 
 	igt_describe("Test polled read with buffer size smaller than available data");
-- 
2.20.1