X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=fio.c;h=1aba82ded2aed00396f9b76e9926000de8347f54;hp=f699951dcf58697f87922be056bfe99191e82f96;hb=fc6bd43c62196441607e6c36ec66bd0e16f9e4ef;hpb=df9c26b10275a631e83e7cc92d5f7384998b2c49

diff --git a/fio.c b/fio.c
index f699951d..1aba82de 100644
--- a/fio.c
+++ b/fio.c
@@ -733,7 +733,7 @@ static int init_io_u(struct thread_data *td)
 {
 	struct io_u *io_u;
 	unsigned int max_bs;
-	int i, max_units;
+	int cl_align, i, max_units;
 	char *p;
 
 	max_units = td->o.iodepth;
@@ -761,10 +761,20 @@ static int init_io_u(struct thread_data *td)
 	else
 		p = td->orig_buffer;
 
+	cl_align = os_cache_line_size();
+
 	for (i = 0; i < max_units; i++) {
+		void *ptr;
+
 		if (td->terminate)
 			return 1;
-		io_u = malloc(sizeof(*io_u));
+
+		if (posix_memalign(&ptr, cl_align, sizeof(*io_u))) {
+			log_err("fio: posix_memalign=%s\n", strerror(errno));
+			break;
+		}
+
+		io_u = ptr;
 		memset(io_u, 0, sizeof(*io_u));
 		INIT_FLIST_HEAD(&io_u->list);
 
@@ -876,6 +886,11 @@ static void reset_io_counters(struct thread_data *td)
 	 */
 	if (td->o.time_based || td->o.loops)
 		td->nr_done_files = 0;
+
+	/*
+	 * Set the same seed to get repeatable runs
+	 */
+	td_fill_rand_seeds(td);
 }
 
 void reset_all_stats(struct thread_data *td)