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Implement kmem cache alignment argument

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This commit is contained in:
Brian Behlendorf
2009-01-26 09:02:04 -08:00
parent e4f3ea278e
commit 48e0606a52
3 changed files with 135 additions and 80 deletions
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module/splat/splat-kmem.c
+37 -11
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@@ -47,11 +47,11 @@
#define SPLAT_KMEM_TEST4_DESC "Memory allocation test (vmem_zalloc)"
#define SPLAT_KMEM_TEST5_ID 0x0105
#define SPLAT_KMEM_TEST5_NAME "kmem_cache1"
#define SPLAT_KMEM_TEST5_NAME "kmem_small"
#define SPLAT_KMEM_TEST5_DESC "Slab ctor/dtor test (small)"
#define SPLAT_KMEM_TEST6_ID 0x0106
#define SPLAT_KMEM_TEST6_NAME "kmem_cache2"
#define SPLAT_KMEM_TEST6_NAME "kmem_large"
#define SPLAT_KMEM_TEST6_DESC "Slab ctor/dtor test (large)"
#define SPLAT_KMEM_TEST7_ID 0x0107
@@ -62,6 +62,10 @@
#define SPLAT_KMEM_TEST8_NAME "kmem_lock"
#define SPLAT_KMEM_TEST8_DESC "Slab locking test"
#define SPLAT_KMEM_TEST9_ID 0x0109
#define SPLAT_KMEM_TEST9_NAME "kmem_align"
#define SPLAT_KMEM_TEST9_DESC "Slab alignment test"
#define SPLAT_KMEM_ALLOC_COUNT 10
#define SPLAT_VMEM_ALLOC_COUNT 10
@@ -250,6 +254,7 @@ typedef struct kmem_cache_priv {
spinlock_t kcp_lock;
wait_queue_head_t kcp_waitq;
int kcp_size;
int kcp_align;
int kcp_count;
int kcp_threads;
int kcp_alloc;
@@ -289,8 +294,8 @@ splat_kmem_cache_test_destructor(void *ptr, void *priv)
}
static int
splat_kmem_cache_size_test(struct file *file, void *arg,
char *name, int size, int flags)
splat_kmem_cache_test(struct file *file, void *arg, char *name,
int size, int align, int flags)
{
kmem_cache_t *cache = NULL;
kmem_cache_data_t *kcd = NULL;
@@ -300,10 +305,12 @@ splat_kmem_cache_size_test(struct file *file, void *arg,
kcp.kcp_magic = SPLAT_KMEM_TEST_MAGIC;
kcp.kcp_file = file;
kcp.kcp_size = size;
kcp.kcp_align = align;
kcp.kcp_count = 0;
kcp.kcp_rc = 0;
cache = kmem_cache_create(SPLAT_KMEM_CACHE_NAME, kcp.kcp_size, 0,
cache = kmem_cache_create(SPLAT_KMEM_CACHE_NAME,
kcp.kcp_size, kcp.kcp_align,
splat_kmem_cache_test_constructor,
splat_kmem_cache_test_destructor,
NULL, &kcp, NULL, flags);
@@ -373,15 +380,15 @@ splat_kmem_test5(struct file *file, void *arg)
char *name = SPLAT_KMEM_TEST5_NAME;
int rc;
rc = splat_kmem_cache_size_test(file, arg, name, 128, 0);
rc = splat_kmem_cache_test(file, arg, name, 128, 0, 0);
if (rc)
return rc;
rc = splat_kmem_cache_size_test(file, arg, name, 128, KMC_KMEM);
rc = splat_kmem_cache_test(file, arg, name, 128, 0, KMC_KMEM);
if (rc)
return rc;
return splat_kmem_cache_size_test(file, arg, name, 128, KMC_VMEM);
return splat_kmem_cache_test(file, arg, name, 128, 0, KMC_VMEM);
}
/* Validate large object cache behavior for dynamic/kmem/vmem caches */
@@ -391,15 +398,15 @@ splat_kmem_test6(struct file *file, void *arg)
char *name = SPLAT_KMEM_TEST6_NAME;
int rc;
rc = splat_kmem_cache_size_test(file, arg, name, 128 * 1024, 0);
rc = splat_kmem_cache_test(file, arg, name, 128*1024, 0, 0);
if (rc)
return rc;
rc = splat_kmem_cache_size_test(file, arg, name, 128 * 1024, KMC_KMEM);
rc = splat_kmem_cache_test(file, arg, name, 128*1024, 0, KMC_KMEM);
if (rc)
return rc;
return splat_kmem_cache_size_test(file, arg, name, 128 * 1028, KMC_VMEM);
return splat_kmem_cache_test(file, arg, name, 128*1028, 0, KMC_VMEM);
}
static void
@@ -675,6 +682,22 @@ splat_kmem_test8(struct file *file, void *arg)
return rc;
}
/* Validate object alignment cache behavior for caches */
static int
splat_kmem_test9(struct file *file, void *arg)
{
char *name = SPLAT_KMEM_TEST9_NAME;
int i, rc;
for (i = 8; i <= PAGE_SIZE; i *= 2) {
rc = splat_kmem_cache_test(file, arg, name, 157, i, 0);
if (rc)
return rc;
}
return rc;
}
splat_subsystem_t *
splat_kmem_init(void)
{
@@ -708,6 +731,8 @@ splat_kmem_init(void)
SPLAT_KMEM_TEST7_ID, splat_kmem_test7);
SPLAT_TEST_INIT(sub, SPLAT_KMEM_TEST8_NAME, SPLAT_KMEM_TEST8_DESC,
SPLAT_KMEM_TEST8_ID, splat_kmem_test8);
SPLAT_TEST_INIT(sub, SPLAT_KMEM_TEST9_NAME, SPLAT_KMEM_TEST9_DESC,
SPLAT_KMEM_TEST9_ID, splat_kmem_test9);
return sub;
}
@@ -716,6 +741,7 @@ void
splat_kmem_fini(splat_subsystem_t *sub)
{
ASSERT(sub);
SPLAT_TEST_FINI(sub, SPLAT_KMEM_TEST9_ID);
SPLAT_TEST_FINI(sub, SPLAT_KMEM_TEST8_ID);
SPLAT_TEST_FINI(sub, SPLAT_KMEM_TEST7_ID);
SPLAT_TEST_FINI(sub, SPLAT_KMEM_TEST6_ID);