Re: [Xen-devel] [PATCH 1/3] Improve xen_disk batching behaviour

[Anthony PERARD <anthony.perard@xxxxxxxxxx>]

On Fri, Nov 02, 2018 at 10:00:59AM +0000, 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 batching I/O requests via blk_io_plug()/
> blk_io_unplug() in an amount proportional to the number which were
> already in flight at the time we started reading the ring.
> 
> Signed-off-by: Tim Smith <tim.smith@xxxxxxxxxx>

Acked-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>

-- 
Anthony PERARD

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