C++ (Cpp) splat_kmem_cache_test 예제들

예제 #1

파일: splat-kmem.c 프로젝트: tuxoko/spl

/*
 * Validate object alignment cache behavior for caches
 */
static int
splat_kmem_test7(struct file *file, void *arg)
{
	char *name = SPLAT_KMEM_TEST7_NAME;
	int max_size = (SPL_KMEM_CACHE_MAX_SIZE * 1024 * 1024) / 2;
	int i, rc;

	for (i = SPL_KMEM_CACHE_ALIGN; i <= PAGE_SIZE; i *= 2) {
		uint32_t size;

		get_random_bytes((void *)&size, sizeof (uint32_t));
		size = MAX(size % (max_size + 1), 32);

		rc = splat_kmem_cache_test(file, arg, name, size, i, 0);
		if (rc)
			return rc;

		rc = splat_kmem_cache_test(file, arg, name, size, i,
		    KMC_OFFSLAB);
		if (rc)
			return rc;
	}

	return rc;
}

예제 #2

파일: splat-kmem.c 프로젝트: dechamps/spl

/* Validate large object cache behavior for dynamic/kmem/vmem caches */
static int
splat_kmem_test6(struct file *file, void *arg)
{
	char *name = SPLAT_KMEM_TEST6_NAME;
	int rc;

	rc = splat_kmem_cache_test(file, arg, name, 256*1024, 0, 0);
	if (rc)
		return rc;

	rc = splat_kmem_cache_test(file, arg, name, 64*1024, 0, KMC_KMEM);
	if (rc)
		return rc;

	return splat_kmem_cache_test(file, arg, name, 1024*1024, 0, KMC_VMEM);
}

예제 #3

파일: splat-kmem.c 프로젝트: ClusterHQ/spl

/*
 * Validate object alignment cache behavior for caches
 */
static int
splat_kmem_test7(struct file *file, void *arg)
{
	char *name = SPLAT_KMEM_TEST7_NAME;
	int i, rc;

	for (i = SPL_KMEM_CACHE_ALIGN; i <= PAGE_SIZE; i *= 2) {
		rc = splat_kmem_cache_test(file, arg, name, 157, i, 0);
		if (rc)
			return rc;

		rc = splat_kmem_cache_test(file, arg, name, 157, i,
		    KMC_OFFSLAB);
		if (rc)
			return rc;
	}

	return rc;
}

예제 #4

파일: splat-kmem.c 프로젝트: ClusterHQ/spl

/*
 * Validate large object cache behavior for dynamic/kmem/vmem caches
 */
static int
splat_kmem_test6(struct file *file, void *arg)
{
	char *name = SPLAT_KMEM_TEST6_NAME;
	int rc;

	/* On slab (default + kmem + vmem) */
	rc = splat_kmem_cache_test(file, arg, name, 256*1024, 0, 0);
	if (rc)
		return rc;

	rc = splat_kmem_cache_test(file, arg, name, 64*1024, 0, KMC_KMEM);
	if (rc)
		return rc;

	rc = splat_kmem_cache_test(file, arg, name, 1024*1024, 0, KMC_VMEM);
	if (rc)
		return rc;

	/* Off slab (default + kmem + vmem) */
	rc = splat_kmem_cache_test(file, arg, name, 256*1024, 0, KMC_OFFSLAB);
	if (rc)
		return rc;

	rc = splat_kmem_cache_test(file, arg, name, 64*1024, 0,
	    KMC_KMEM | KMC_OFFSLAB);
	if (rc)
		return rc;

	rc = splat_kmem_cache_test(file, arg, name, 1024*1024, 0,
	    KMC_VMEM | KMC_OFFSLAB);

	return rc;
}

예제 #5

파일: splat-kmem.c 프로젝트: tuxoko/spl

/*
 * Validate large object cache behavior for dynamic/kmem/vmem caches
 */
static int
splat_kmem_test6(struct file *file, void *arg)
{
	char *name = SPLAT_KMEM_TEST6_NAME;
	int i, max_size, rc = 0;

	/* Randomly pick large object sizes and alignments. */
	for (i = 0; i < 100; i++) {
		int size, align, flags = 0;
		uint32_t rnd;

		/* Evenly distribute tests over all value cache types */
		get_random_bytes((void *)&rnd, sizeof (uint32_t));
		switch (rnd & 0x03) {
		default:
		case 0x00:
			flags = 0;
			max_size = (SPL_KMEM_CACHE_MAX_SIZE * 1024 * 1024) / 2;
			break;
		case 0x01:
			flags = KMC_KMEM;
			max_size = (SPL_MAX_ORDER_NR_PAGES - 2) * PAGE_SIZE;
			break;
		case 0x02:
			flags = KMC_VMEM;
			max_size = (SPL_KMEM_CACHE_MAX_SIZE * 1024 * 1024) / 2;
			break;
		case 0x03:
			flags = KMC_SLAB;
			max_size = SPL_MAX_KMEM_ORDER_NR_PAGES * PAGE_SIZE;
			break;
		}

		/* The following flags are set with a 1/10 chance */
		flags |= ((((rnd >> 8) % 10) == 0) ? KMC_OFFSLAB : 0);
		flags |= ((((rnd >> 16) % 10) == 0) ? KMC_NOEMERGENCY : 0);

		/* PAGE_SIZE - max_size */
		get_random_bytes((void *)&rnd, sizeof (uint32_t));
		size = MAX(rnd % (max_size + 1), PAGE_SIZE),

		/* 2^N where (3 <= N <= PAGE_SHIFT) */
		get_random_bytes((void *)&rnd, sizeof (uint32_t));
		align = (1 << MAX(3, rnd % (PAGE_SHIFT + 1)));

		rc = splat_kmem_cache_test(file, arg, name, size, align, flags);
		if (rc)
			return (rc);
	}

	return (rc);
}