diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-09-29 09:17:43 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-09-29 15:22:30 +0100 |
| commit | 09f8cb1a3758fa9868a07b83a3d3db2973d795cc (patch) | |
| tree | e7fdbd504523a205b0d70c3d80eb9ef01fdab4f4 /tests/gem_sync.c | |
| parent | 182b1941d8e221f1f5625c53f74b09bef7d8837a (diff) | |
igt/gem_sync: Sync before starting the clock
Hide the initial setup cost of a new batch by performing it before we
start the clock for measuring the execute-wait latency.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'tests/gem_sync.c')
| -rw-r--r-- | tests/gem_sync.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tests/gem_sync.c b/tests/gem_sync.c index 8ed9760d..c9e2f014 100644 --- a/tests/gem_sync.c +++ b/tests/gem_sync.c @@ -138,6 +138,7 @@ sync_ring(int fd, unsigned ring, int num_children, int timeout) execbuf.buffer_count = 1; execbuf.flags = engines[child % num_engines]; gem_execbuf(fd, &execbuf); + gem_sync(fd, object.handle); start = gettime(); cycles = 0; @@ -553,6 +554,7 @@ sync_all(int fd, int num_children, int timeout) execbuf.buffers_ptr = to_user_pointer(&object); execbuf.buffer_count = 1; gem_execbuf(fd, &execbuf); + gem_sync(fd, object.handle); start = gettime(); cycles = 0; @@ -773,6 +775,7 @@ preempt(int fd, unsigned ring, int num_children, int timeout) execbuf.flags = engines[child % num_engines]; execbuf.rsvd1 = ctx[1]; gem_execbuf(fd, &execbuf); + gem_sync(fd, object.handle); start = gettime(); cycles = 0; |