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a1fc70f
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Fix off-by-one bug in CPU split mask handling
author
Jens Axboe
<axboe@fb.com>
Fri, 28 Feb 2014 16:35:40 +0000
(08:35 -0800)
committer
Jens Axboe
<axboe@fb.com>
Fri, 28 Feb 2014 16:35:40 +0000
(08:35 -0800)
The thread number is not zero based, it starts from 1.
Signed-off-by: Jens Axboe <axboe@fb.com>
backend.c
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diff --git
a/backend.c
b/backend.c
index 12c76d8545ef53a02b95223ca8d53237b3175ef4..72d9d6d2d6d1d47efe7360e8c4519a7e65c4e99c 100644
(file)
--- a/
backend.c
+++ b/
backend.c
@@
-1279,7
+1279,7
@@
static void *thread_main(void *data)
*/
if (o->cpumask_set) {
if (o->cpus_allowed_policy == FIO_CPUS_SPLIT) {
- ret = fio_cpus_split(&o->cpumask, td->thread_number);
+ ret = fio_cpus_split(&o->cpumask, td->thread_number
- 1
);
if (!ret) {
log_err("fio: no CPUs set\n");
log_err("fio: Try increasing number of available CPUs\n");