> -Original Message-
> From: Jens Axboe [mailto:ax...@kernel.dk]
> Sent: Tuesday, May 06, 2014 7:47 PM
> To: Desai, Kashyap
> Cc: linux-scsi@vger.kernel.org
> Subject: Re: How to get more sequential IO merged at elevator
>
> On 05/06/2014 04:06 AM, Desai, Kashyap wr
> -Original Message-
> From: Jens Axboe [mailto:ax...@kernel.dk]
> Sent: Tuesday, May 06, 2014 7:47 PM
> To: Desai, Kashyap
> Cc: linux-scsi@vger.kernel.org
> Subject: Re: How to get more sequential IO merged at elevator
>
> On 05/06/2014 04:06 AM, Desai, Kashyap wr
On 05/06/2014 04:06 AM, Desai, Kashyap wrote:
> I got some clue on what was going on while doing 4K sequential read using fio.
>
> If I use ioengine in fio script as "libaio", I see " do_io_submit" call
> plug/unplug the queue before submitting the IO.
> It means after every IO, we expect to send
I got some clue on what was going on while doing 4K sequential read using fio.
If I use ioengine in fio script as "libaio", I see " do_io_submit" call
plug/unplug the queue before submitting the IO.
It means after every IO, we expect to send IO immediately to the next layer. If
at all there are
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