smalloc: enlarge pool size

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/smalloc.c b/smalloc.c
index ac5754d..3dd1b49 100644
--- a/smalloc.c
+++ b/smalloc.c
@@ -20,7 +20,7 @@
 #define SMALLOC_BPI	(sizeof(unsigned int) * 8)
 #define SMALLOC_BPL	(SMALLOC_BPB * SMALLOC_BPI)
 
-#define INITIAL_SIZE	1024*1024	/* new pool size */
+#define INITIAL_SIZE	8192*1024	/* new pool size */
 #define MAX_POOLS	128		/* maximum number of pools to setup */
 
 #define SMALLOC_PRE_RED		0xdeadbeefU