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Date: Mon, 29 Sep 2014 08:41:11 +0100
From: Sitsofe Wheeler <sitsofe@gmail.com>
Subject: Re: [Question] How to perform stride access?
Message-ID: <20140929074038.GA12377@sucs.org>
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To: Jens Axboe <axboe@kernel.dk>
Cc: Akira Hayakawa <ruby.wktk@gmail.com>, Andrey Kuzmin <andrey.v.kuzmin@gmail.com>, "fio@vger.kernel.org" <fio@vger.kernel.org>
List-ID: <fio@vger.kernel.org>

(Resending because list rejected HTML part)

On 28 September 2014 23:13, Jens Axboe <axboe@kernel.dk> wrote:

> On 09/28/2014 01:44 PM, Sitsofe Wheeler wrote:
> > The patch fixes
> > fio --bs=4k --rw=write:4k --filename=/dev/shm/1M --name=go --io_limit=2M
> > but not
> > fio --bs=512k --rw=write --filename=/dev/shm/1M --name=go --number_io=4
>
> number_ios=x is implemented as a cap, not a forced "must complete this
> amount of ios to be done".

Ah I see. Now I look again the HOWTO even says it doesn't extend the number
of I/Os - I should have read more carefully!

> > or
> > fio --bs=4k --rw=write --filename=/dev/shm/1M --name=go --zoneskip=4k
> --zonesize=4k --io_limit=2M
>
> That one is a bit more tricky. Oh, try the attached (keep the previous
> applied).

Latest patch fixes zone skipping for me too. Akira are things better for
you too?

-- 
Sitsofe | http://sucs.org/~sits/