@@ -1274,11 +1274,15 @@ static void cpu_hotplug(int gem_fd)
assert_within_epsilon(val, ts[1] - ts[0], tolerance);
}
+static int target_num_interrupts(int i915)
+{
+ return min(gem_measure_ring_inflight(i915, I915_EXEC_DEFAULT, 0), 30);
+}
+
static void
test_interrupts(int gem_fd)
{
- const int target =
- gem_measure_ring_inflight(gem_fd, I915_EXEC_DEFAULT, 0);
+ const int target = target_num_interrupts(gem_fd);
const unsigned int test_duration_ms = 1000;
igt_spin_t *spin[target];
struct pollfd pfd;
@@ -1342,8 +1346,7 @@ test_interrupts(int gem_fd)
static void
test_interrupts_sync(int gem_fd)
{
- const int target =
- gem_measure_ring_inflight(gem_fd, I915_EXEC_DEFAULT, 0);
+ const int target = target_num_interrupts(gem_fd);
const unsigned int test_duration_ms = 1000;
igt_spin_t *spin[target];
struct pollfd pfd;
Limit the maximum number of interrupts in order to avoid overburdening older CPUs and GPUs. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> --- tests/perf_pmu.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-)