X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=smalloc.c;h=4cd8298eaa004d7a56d861aefcb1373ae7fd7001;hp=ac5754d5f496119a342180eeae58bb4a229e4cf0;hb=3a8600b4ae9027d02aca7eb1990e5cda4e9f423a;hpb=86375e3446fdeb6c4dd1406cc0e4c456af954a2c

diff --git a/smalloc.c b/smalloc.c
index ac5754d5..4cd8298e 100644
--- a/smalloc.c
+++ b/smalloc.c
@@ -10,9 +10,11 @@
 #include <unistd.h>
 #include <sys/types.h>
 #include <limits.h>
+#include <fcntl.h>
 
 #include "mutex.h"
 #include "arch/arch.h"
+#include "os/os.h"
 
 #define SMALLOC_REDZONE		/* define to detect memory corruption */
 
@@ -20,7 +22,7 @@
 #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
@@ -176,7 +178,7 @@ static int find_next_zero(int word, int start)
 
 static int add_pool(struct pool *pool, unsigned int alloc_size)
 {
-	int fd, bitmap_blocks;
+	int fd, bitmap_blocks, ret;
 	char file[] = "/tmp/.fio_smalloc.XXXXXX";
 	void *ptr;
 
@@ -196,10 +198,18 @@ static int add_pool(struct pool *pool, unsigned int alloc_size)
 	bitmap_blocks = alloc_size / SMALLOC_BPL;
 	alloc_size += bitmap_blocks * sizeof(unsigned int);
 	pool->mmap_size = alloc_size;
-	
+
 	pool->nr_blocks = bitmap_blocks;
 	pool->free_blocks = bitmap_blocks * SMALLOC_BPB;
 
+#ifdef FIO_HAVE_FALLOCATE
+	ret = posix_fallocate(fd, 0, alloc_size);
+	if (ret > 0) {
+		fprintf(stderr, "posix_fallocate pool file failed: %s\n", strerror(ret));
+		goto out_unlink;
+	}
+#endif
+
 	if (ftruncate(fd, alloc_size) < 0)
 		goto out_unlink;