[igt-dev] [PATCH igt 13/16] igt/gem_ctx_switch: Do a warmup pass over all contexts
Chris Wilson
chris at chris-wilson.co.uk
Tue Feb 20 08:45:17 UTC 2018
Ensure that we always use every context at least once before we start
running the stress-test.
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
tests/gem_ctx_switch.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/tests/gem_ctx_switch.c b/tests/gem_ctx_switch.c
index 4db902b1..e0ab3d18 100644
--- a/tests/gem_ctx_switch.c
+++ b/tests/gem_ctx_switch.c
@@ -101,6 +101,13 @@ static void single(int fd, uint32_t handle,
struct timespec start, now;
unsigned int count = 0;
+ /* Warmup */
+ for (int i = 0; i < ARRAY_SIZE(contexts); i++) {
+ execbuf.rsvd1 = contexts[i];
+ gem_execbuf(fd, &execbuf);
+ }
+ gem_sync(fd, handle);
+
clock_gettime(CLOCK_MONOTONIC, &start);
do {
igt_while_interruptible(flags & INTERRUPTIBLE) {
--
2.16.1
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