[PATCH i-g-t] tests/gem_exec_nop: Improved test run time

[Derek Morton <derek.j.morton@intel.com>]

Reduced the Sleep period to 200mS and reduced the repetition count to 7
to decrease the test run time significantly.

Also fixed a non ascii character that messed up the results table formatting.

Signed-off-by: Derek Morton <derek.j.morton@intel.com>
---
 tests/gem_exec_nop.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tests/gem_exec_nop.c b/tests/gem_exec_nop.c
index a287d08..5028145 100644
--- a/tests/gem_exec_nop.c
+++ b/tests/gem_exec_nop.c
@@ -133,7 +133,7 @@ static void loop(int fd, uint32_t handle, unsigned ring_id, const char *ring_nam
 	gem_sync(fd, handle);
 
 	for (count = 1; count <= SLOW_QUICK(1<<17, 1<<4); count <<= 1) {
-		const int reps = 13;
+		const int reps = 7;
 		igt_stats_t stats;
 		int n;
 
@@ -142,7 +142,7 @@ static void loop(int fd, uint32_t handle, unsigned ring_id, const char *ring_nam
 		for (n = 0; n < reps; n++) {
 			struct timespec start, end;
 			int loops = count;
-			sleep(1); /* wait for the hw to go back to sleep */
+			usleep(200000); /* wait 200mS for the hw to go back to sleep */
 			clock_gettime(CLOCK_MONOTONIC, &start);
 			while (loops--)
 				do_ioctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf);
@@ -151,7 +151,7 @@ static void loop(int fd, uint32_t handle, unsigned ring_id, const char *ring_nam
 			igt_stats_push(&stats, elapsed(&start, &end, count));
 		}
 
-		igt_info("Time to exec x %d:		%7.3fµs (ring=%s)\n",
+		igt_info("Time to exec x %d:		%7.3fuS (ring=%s)\n",
 			 count, igt_stats_get_trimean(&stats)/1000, ring_name);
 		fflush(stdout);
 
-- 
1.9.1

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