tests/gem_*_blits: reduce buffer count to not trash swap

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 7 insertions, 0 deletions

diff --git a/tests/gem_linear_blits.c b/tests/gem_linear_blits.c
index ae188ff8..14cf4f4b 100644
--- a/tests/gem_linear_blits.c
+++ b/tests/gem_linear_blits.c
@@ -248,6 +248,13 @@ int main(int argc, char **argv)
 		count = atoi(argv[1]);
 	if (count == 0)
 		count = 3 * gem_aperture_size(fd) / (1024*1024) / 2;
+
+	if (count > intel_get_total_ram_mb() * 9 / 10) {
+		count = intel_get_total_ram_mb() * 9 / 10;
+		fprintf(stderr, "not enough RAM to run test, reducing buffer count\n");
+		return 77;
+	}
+
 	printf("Using %d 1MiB buffers\n", count);
 
 	handle = malloc(sizeof(uint32_t)*count*2);