On 9/7/21 10:10 PM, Andrzej Jakowski wrote:
> This patch allows to flexibly assign IO threads to fileset. When
> you specify:
>
> t/io_uring -n 5 /dev/dev1 dev/dev2
>
> First file/device will get 3 IO threads and second file/device
> remaining 2 IO threads. When there is more files then IO threads,
> IO thread may get assigned multiple files/devices.
>
> Signed-off-by: Andrzej Jakowski <andrzej.jakowski@xxxxxxxxx>
> ---
> t/io_uring.c | 51 ++++++++++++++++++++++++++++++++++-----------------
> 1 file changed, 34 insertions(+), 17 deletions(-)
>
> diff --git a/t/io_uring.c b/t/io_uring.c
> index 28c76b0..6a06799 100644
> --- a/t/io_uring.c
> +++ b/t/io_uring.c
> @@ -556,7 +556,8 @@ int main(int argc, char *argv[])
> {
> struct submitter *s;
> unsigned long done, calls, reap;
> - int err, i, j, flags, fd, opt;
> + int err, i, j, flags, fd, opt, threads_per_f, threads_rem = 0, nfiles;
> + struct file f;
> char *fdepths;
> void *ret;
>
> @@ -613,37 +614,53 @@ int main(int argc, char *argv[])
>
> j = 0;
> i = optind;
> + nfiles = argc - i;
> + threads_per_f = nthreads / nfiles;
Can nfiles be zero?
--
Jens Axboe
