diff options
Diffstat (limited to 'lib/intel_os.c')
| -rw-r--r-- | lib/intel_os.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/intel_os.c b/lib/intel_os.c index 83368c29..64d87e36 100644 --- a/lib/intel_os.c +++ b/lib/intel_os.c @@ -185,6 +185,27 @@ intel_get_total_swap_mb(void) return retval / (1024*1024); } +/** + * intel_check_memory: + * @count: number of surfaces that will be created + * @size: the size in bytes of each surface + * @mode: a bitfield declaring whether the test will be run in RAM or in SWAP + * + * Computes the total amount of memory required to allocate @count surfaces, + * each of @size bytes, and includes an estimate for kernel overhead. It then + * queries the kernel for the avilable amount of memory on the system (either + * RAM and/or SWAP depending upon @mode) and determines whether there is + * sufficient to run the test. + * + * Most tests should check that there is enough RAM to hold their working set. + * The rare swap thrashing tests should check that there is enough RAM + SWAP + * for their tests. oom-killer tests should only run if this reports that + * there is not enought RAM + SWAP! + * + * Returns: + * Whether the estimated amount of memory required for the objects + * fits in the available memory on the system. + */ bool intel_check_memory(uint32_t count, uint32_t size, unsigned mode) { /* rough estimate of how many bytes the kernel requires to track each object */ |