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Factor in kernel object overhead when checking available memory for tests

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson
2014-05-28 09:01:56 +01:00
parent e4ba3b75e6
commit 321273ff76
5 changed files with 49 additions and 17 deletions
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tests/eviction_common.c
+12 -13
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@@ -101,13 +101,12 @@ static int minor_evictions(int fd, struct igt_eviction_test_ops *ops,
}
static int major_evictions(int fd, struct igt_eviction_test_ops *ops,
int surface_size, int nr_surfaces)
int surface_size, int nr_surfaces)
{
int n, m, loop;
uint32_t *bo;
igt_require((uint64_t)nr_surfaces * surface_size / (1024 * 1024)
< intel_get_total_ram_mb() * 9 / 10);
igt_require(intel_check_memory(nr_surfaces, surface_size, CHECK_RAM));
bo = malloc(nr_surfaces*sizeof(*bo));
igt_assert(bo);
@@ -128,19 +127,20 @@ static int major_evictions(int fd, struct igt_eviction_test_ops *ops,
}
static int swapping_evictions(int fd, struct igt_eviction_test_ops *ops,
int surface_size,
int working_surfaces,
int trash_surfaces)
int surface_size,
int working_surfaces,
int trash_surfaces)
{
uint32_t *bo;
int i, n, pass;
igt_require((uint64_t)working_surfaces * surface_size / (1024 * 1024)
< intel_get_total_ram_mb() * 9 / 10);
igt_require(intel_check_memory(working_surfaces, surface_size, CHECK_RAM));
if (trash_surfaces < working_surfaces)
trash_surfaces = working_surfaces;
igt_require(intel_check_memory(trash_surfaces, surface_size, CHECK_RAM | CHECK_SWAP));
bo = malloc(trash_surfaces*sizeof(*bo));
igt_assert(bo);
@@ -173,19 +173,18 @@ static int forking_evictions(int fd, struct igt_eviction_test_ops *ops,
int num_threads = sysconf(_SC_NPROCESSORS_ONLN);
int bo_count;
igt_require((uint64_t)working_surfaces * surface_size / (1024 * 1024)
< intel_get_total_ram_mb() * 9 / 10);
igt_require(intel_check_memory(working_surfaces, surface_size, CHECK_RAM));
if (flags & FORKING_EVICTIONS_SWAPPING) {
igt_require(intel_get_total_ram_mb() / 4
< intel_get_total_swap_mb());
bo_count = trash_surfaces;
if (bo_count < working_surfaces)
bo_count = working_surfaces;
} else
bo_count = working_surfaces;
igt_require(intel_check_memory(bo_count, surface_size, CHECK_RAM | CHECK_SWAP));
bo = malloc(bo_count*sizeof(*bo));
igt_assert(bo);