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igt/gem_fence_thrash: Reduce memory usage

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On android platforms with 1Gb RAM gem_fence_thrash was failing
with an out of memory error.
This patch causes gem_close() to be called when a handle is
no longer required rather than relying on the cleanup when
the fd is closed. This greatly improves the memory footprint
of the test allowing it to run on 1Mb systems.

Also fixed a leak of the 'threads' variable.

v2: Simplified as per Chris Wilson's suggestion.

Signed-off-by: Derek Morton <derek.j.morton@intel.com>
[ickle: fix mmap leak from bo_copy()]
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Derek Morton 2015-06-23 17:06:01 +01:00 committed by Chris Wilson
parent 154192a680
commit 471ebbed53
1 changed files with 8 additions and 3 deletions
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11
tests/gem_fence_thrash.c
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@ -62,8 +62,8 @@ struct test {
static void *
bo_create (int fd, int tiling)
{
uint32_t handle;
void *ptr;
int handle;
handle = gem_create(fd, OBJECT_SIZE);
@ -78,8 +78,8 @@ bo_create (int fd, int tiling)
ptr = gem_mmap(fd, handle, OBJECT_SIZE, PROT_READ | PROT_WRITE);
igt_assert(ptr);
/* XXX: mmap_gtt pulls the bo into the GTT read domain. */
gem_sync(fd, handle);
gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
gem_close(fd, handle);
return ptr;
}
@ -100,6 +100,9 @@ bo_copy (void *_arg)
sched_yield ();
}
munmap(a, OBJECT_SIZE);
munmap(b, OBJECT_SIZE);
return NULL;
}
@ -188,6 +191,8 @@ static int run_test(int threads_per_fence, void *f, int tiling,
for (n = 0; n < num_threads; n++)
pthread_join (threads[n], NULL);
free(threads);
} else {
void *(*func)(void *) = f;
igt_assert(func(&t) == (void *)0);