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[I-G-T,CI,4/4] lib: Free all internal buffers before measuring available memory

Message ID 20171018215629.5328-4-chris@chris-wilson.co.uk (mailing list archive)
State New, archived
Headers show

Commit Message

Chris Wilson Oct. 18, 2017, 9:56 p.m. UTC 
Release the internal caches (by flushing the idle_worker) to maximise the
available memory for use by tests (and to reduce sporadic skipping when
on the cusp).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
---
 lib/intel_os.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/lib/intel_os.c b/lib/intel_os.c
index 6e0a46b3..a77566c1 100644
--- a/lib/intel_os.c
+++ b/lib/intel_os.c
@@ -297,7 +297,7 @@  void intel_purge_vm_caches(int drm_fd)
 {
 	int fd;
 
-	igt_drop_caches_set(drm_fd, DROP_SHRINK_ALL);
+	igt_drop_caches_set(drm_fd, DROP_SHRINK_ALL | DROP_IDLE | DROP_FREED);
 
 	fd = open("/proc/sys/vm/drop_caches", O_WRONLY);
 	if (fd >= 0) {