diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-05-24 16:14:32 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-05-24 16:43:31 +0100 |
| commit | dab6b6b62dce6baf041ea5387af197626737c8a2 (patch) | |
| tree | 3316a75a9e781c88d028d3bec05dd68b58474010 /tests/kms_cursor_legacy.c | |
| parent | 2da624e28ce7485a1c67e7650355b5273d88d690 (diff) | |
igt/kms_cursor_legacy: Add uncontended cursor updates
Looking at the uncontended cases reveals a major contention cliff.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'tests/kms_cursor_legacy.c')
| -rw-r--r-- | tests/kms_cursor_legacy.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/tests/kms_cursor_legacy.c b/tests/kms_cursor_legacy.c index 84c74e3e..aff3ff55 100644 --- a/tests/kms_cursor_legacy.c +++ b/tests/kms_cursor_legacy.c @@ -43,7 +43,8 @@ hars_petruska_f54_1_random (void) #undef rol } -static void stress(struct data *data, unsigned mode, int timeout) +static void stress(struct data *data, + int num_children, unsigned mode, int timeout) { drmModeRes *r; struct drm_mode_cursor arg; @@ -63,7 +64,7 @@ static void stress(struct data *data, unsigned mode, int timeout) drmIoctl(data->fd, DRM_IOCTL_MODE_CURSOR, &arg); arg.flags = mode; - igt_fork(child, sysconf(_SC_NPROCESSORS_ONLN)) { + igt_fork(child, num_children) { struct sched_param rt = {.sched_priority = 99 }; cpu_set_t allowed; unsigned long count = 0; @@ -91,6 +92,7 @@ static void stress(struct data *data, unsigned mode, int timeout) igt_main { + const int ncpus = sysconf(_SC_NPROCESSORS_ONLN); struct data data = { .fd = -1 }; igt_skip_on_simulation(); @@ -100,10 +102,15 @@ igt_main kmstest_set_vt_graphics_mode(); } - igt_subtest("stress-bo") - stress(&data, DRM_MODE_CURSOR_BO, 20); - igt_subtest("stress-move") - stress(&data, DRM_MODE_CURSOR_MOVE, 20); + igt_subtest("single-bo") + stress(&data, 1, DRM_MODE_CURSOR_BO, 20); + igt_subtest("single-move") + stress(&data, 1, DRM_MODE_CURSOR_MOVE, 20); + + igt_subtest("forked-bo") + stress(&data, ncpus, DRM_MODE_CURSOR_BO, 20); + igt_subtest("forked-move") + stress(&data, ncpus, DRM_MODE_CURSOR_MOVE, 20); igt_fixture { } |