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fio: fix last block never being touched by random offsets
author
Peter Oberparleiter
<oberpar@linux.vnet.ibm.com>
Fri, 28 Feb 2014 17:09:13 +0000
(09:09 -0800)
committer
Jens Axboe
<axboe@fb.com>
Fri, 28 Feb 2014 17:09:13 +0000
(09:09 -0800)
Fix the available range for random offsets which never touched the last block.
Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
io_u.c
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diff --git
a/io_u.c
b/io_u.c
index 77557dfdca12748f1db2249c05efc93a21b09f4b..75b23eb47d9091c58d3df19b2f6def826d3c3836 100644
(file)
--- a/
io_u.c
+++ b/
io_u.c
@@
-104,7
+104,7
@@
static int __get_next_rand_offset(struct thread_data *td, struct fio_file *f,
dprint(FD_RANDOM, "off rand %llu\n", (unsigned long long) r);
- *b =
(lastb - 1)
* (r / ((uint64_t) rmax + 1.0));
+ *b =
lastb
* (r / ((uint64_t) rmax + 1.0));
} else {
uint64_t off = 0;