diff options
| author | Vijay Bellur <vijay@gluster.com> | 2010-11-09 05:14:22 +0000 |
|---|---|---|
| committer | Anand V. Avati <avati@dev.gluster.com> | 2010-11-09 03:07:03 -0800 |
| commit | 667c5e22467cbecd371bfc052e7f65b6b6b41e2d (patch) | |
| tree | 5add02895cf2ccc29c99da0f567485fc5a3b5bfa | |
| parent | 16eb9f73a5a7699d5c51d8139b4f1bc77ee3deda (diff) | |
libglusterfs: Memory accounting changes
This patch disables memory accounting by default and provides better
alignemnt for faster fetch.
Signed-off-by: Vijay Bellur <vijay@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
BUG: 2068 (performance enhancements)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2068
| -rw-r--r-- | libglusterfs/src/mem-pool.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/libglusterfs/src/mem-pool.c b/libglusterfs/src/mem-pool.c index 17d2e0dd2f1..76b62902317 100644 --- a/libglusterfs/src/mem-pool.c +++ b/libglusterfs/src/mem-pool.c @@ -29,15 +29,15 @@ #define mem_pool_ptr2chunkhead(ptr) ((ptr) - GF_MEM_POOL_PAD_BOUNDARY) #define is_mem_chunk_in_use(ptr) (*ptr == 1) -#define GF_MEM_HEADER_SIZE (4 + sizeof (size_t) + sizeof (xlator_t *) + 4) -#define GF_MEM_TRAILER_SIZE 4 +#define GF_MEM_HEADER_SIZE (4 + sizeof (size_t) + sizeof (xlator_t *) + 4 + 8) +#define GF_MEM_TRAILER_SIZE 8 #define GF_MEM_HEADER_MAGIC 0xCAFEBABE #define GF_MEM_TRAILER_MAGIC 0xBAADF00D #define GLUSTERFS_ENV_MEM_ACCT_STR "GLUSTERFS_DISABLE_MEM_ACCT" -static int gf_mem_acct_enable = 1; +static int gf_mem_acct_enable = 0; int gf_mem_acct_is_enabled () @@ -110,6 +110,7 @@ gf_mem_set_acct_info (xlator_t *xl, char **alloc_ptr, ptr += sizeof (xlator_t *); *(uint32_t *)(ptr) = GF_MEM_HEADER_MAGIC; ptr = ptr + 4; + ptr = ptr + 8; //padding *(uint32_t *) (ptr + size) = GF_MEM_TRAILER_MAGIC; *alloc_ptr = (void *)ptr; @@ -174,10 +175,12 @@ __gf_realloc (void *ptr, size_t size) xlator_t *xl = NULL; uint32_t type = 0; + if (!gf_mem_acct_enable) + return realloc (ptr, size); tot_size = size + GF_MEM_HEADER_SIZE + GF_MEM_TRAILER_SIZE; - orig_ptr = (char *)ptr - 4; + orig_ptr = (char *)ptr - 8 - 4; GF_ASSERT (*(uint32_t *)orig_ptr == GF_MEM_HEADER_MAGIC); @@ -256,8 +259,7 @@ __gf_free (void *free_ptr) if (!free_ptr) return; - - ptr = (char *)free_ptr - 4; + ptr = (char *)free_ptr - 8 - 4; if (GF_MEM_HEADER_MAGIC != *(uint32_t *)ptr) { //Possible corruption, assert here |