On Fri, Nov 02, 2018 at 10:00:59AM +, Tim Smith wrote:
> When I/O consists of many small requests, performance is improved by
> batching them together in a single io_submit() call. When there are
> relatively few requests, the extra overhead is not worth it. This
> introduces a check to start b
> -Original Message-
> From: Tim Smith [mailto:tim.sm...@citrix.com]
> Sent: 02 November 2018 10:01
> To: xen-de...@lists.xenproject.org; qemu-devel@nongnu.org; qemu-
> bl...@nongnu.org
> Cc: Anthony Perard ; Kevin Wolf
> ; Paul Durrant ; Stefano
> Stabellini ; Max Reitz
> Subject: [PATCH
When I/O consists of many small requests, performance is improved by
batching them together in a single io_submit() call. When there are
relatively few requests, the extra overhead is not worth it. This
introduces a check to start batching I/O requests via blk_io_plug()/
blk_io_unplug() in an amoun
When I/O consists of many small requests, performance is improved by
batching them together in a single io_submit() call. When there are
relatively few requests, the extra overhead is not worth it. This
introduces a check to start batching I/O requests via blk_io_plug()/
blk_io_unplug() in an amoun
Hi Tim,
I'll reply here for the series (since there are no cover-letter).
Thanks, the patches looks good. There are just details that needs to be
fixed.
When resubmitting the patches, could you CC the relevant maintainers,
with the help of the script get_maintainer.pl, and add a cover-letter as
> -Original Message-
> From: Qemu-devel [mailto:qemu-devel-
> bounces+paul.durrant=citrix@nongnu.org] On Behalf Of Tim Smith
> Sent: 07 September 2018 11:21
> To: qemu-devel@nongnu.org
> Subject: [Qemu-devel] [PATCH 1/3] Improve xen_disk batching behaviour
>
&
When I/O consists of many small requests, performance is improved by
batching them together in a single io_submit() call. When there are
relatively few requests, the extra overhead is not worth it. This
introduces a check to start batching I/O requests via blk_io_plug()/
blk_io_unplug() in an amoun
