lkml.org 
[lkml]   [2018]   [Jul]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [RFC] scsi: switch to scsi-mq by default
On Tue, Jul 3, 2018 at 2:54 PM, Johannes Thumshirn <jthumshirn@suse.de> wrote:
> It has been more than one year since we tried to change the default
> from legacy to multi queue in SCSI. Back then we had to retract the
> change because of performance issues with rotating disks.
>
> In the meantime there have been a substantial amount of performance
> improvements, thus we can re-enable scsi-mq without a significant
> performance penalty.
>
> Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
> ---
> drivers/scsi/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
> index 35c909bbf8ba..bd115bab162e 100644
> --- a/drivers/scsi/Kconfig
> +++ b/drivers/scsi/Kconfig
> @@ -49,6 +49,7 @@ config SCSI_NETLINK
>
> config SCSI_MQ_DEFAULT
> bool "SCSI: use blk-mq I/O path by default"
> + default y
> depends on SCSI
> ---help---
> This option enables the new blk-mq based I/O path for SCSI
> --
> 2.16.4
>

Reviewed-by: Ming Lei <ming.lei@redhat.com>


thanks,
Ming Lei

\
 
 \ /
  Last update: 2018-07-03 09:00    [W:0.047 / U:0.508 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site