From: Tomohiro Kusumi <tkusumi@xxxxxxxxxx>
Using this macro (originally for hash in Linux kernel) for rand seed
instead of hard-coded value should make sense. rdma ioengine uses
this for the seed as well.
Signed-off-by: Tomohiro Kusumi <tkusumi@xxxxxxxxxx>
---
init.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/init.c b/init.c
index 6af6c45..eef5150 100644
--- a/init.c
+++ b/init.c
@@ -26,6 +26,7 @@
#include "idletime.h"
#include "filelock.h"
#include "steadystate.h"
+#include "hash.h"
#include "oslib/getopt.h"
#include "oslib/strcasestr.h"
@@ -1083,11 +1084,11 @@ static int setup_random_seeds(struct thread_data *td)
seed = td->o.rand_seed;
for (i = 0; i < 4; i++)
- seed *= 0x9e370001UL;
+ seed *= GOLDEN_RATIO_PRIME;
for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
td->rand_seeds[i] = seed * td->thread_number + i;
- seed *= 0x9e370001UL;
+ seed *= GOLDEN_RATIO_PRIME;
}
td_fill_rand_seeds(td);
--
2.9.3
--
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