Reset the system to a vanilla state before we query how much RAM/swap
space is available for our testing.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
/* These are separate to allow easier testing when porting, see the comment at
* the bottom of intel_os.c. */
+void intel_purge_vm_caches(void);
uint64_t intel_get_avail_ram_mb(void);
uint64_t intel_get_total_ram_mb(void);
uint64_t intel_get_total_swap_mb(void);
return retval / (1024*1024);
}
+void
+intel_purge_vm_caches(void)
+{
+ int fd;
+
+ fd = open("/proc/sys/vm/drop_caches", O_RDWR);
+ if (fd < 0)
+ return;
+
+ write(fd, "3\n", 2);
+ close(fd);
+}
+
/*
* When testing a port to a new platform, create a standalone test binary
current_tiling_mode = I915_TILING_X;
igt_skip_on_simulation();
+ intel_purge_vm_caches();
fd = drm_open_any();
/* need slightly more than available memory */