From: Jens Axboe <axboe@kernel.dk>
To: jiahua@gmail.com
Cc: fio@vger.kernel.org
Subject: Re: How to control the number of random I/O's acrossing the whole file/device?
Date: Thu, 08 Aug 2013 14:54:33 -0600 [thread overview]
Message-ID: <52040589.2050803@kernel.dk> (raw)
In-Reply-To: <CA+S_sg4ROD-+qdBKz9VMwMcOn4OrpOTBh9sF=gQEbfT54HZCXw@mail.gmail.com>
On 08/07/2013 12:57 PM, Jiahua wrote:
> Sorry to bother you again! Can anyone shed some light here? Or can you
> give a pointer into the code where I should look at to implement the
> feature I want?
>
> Thanks,
> Jiahua
>
> On Tue, Aug 6, 2013 at 4:19 PM, Jiahua <jiahua@gmail.com> wrote:
>> Hi all,
>>
>> What I want is to touch a file/device randomly but up to a given
>> number of times. I tried the "size=" option but it also limits the
>> file size. Is there a way to do that instead of time_based, which is
>> approximate to my requirement?
Not sure what you as asking here. size= will generally specify the
region that fio will operate on. If you want to touch it multiple times,
you could do time_based and/or loops. The region will still be governed
by size= (or default to the existing total size of the file/device, if
not given).
--
Jens Axboe
next prev parent reply other threads:[~2013-08-08 20:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-06 23:19 How to control the number of random I/O's acrossing the whole file/device? Jiahua
2013-08-07 18:57 ` Jiahua
2013-08-08 20:54 ` Jens Axboe [this message]
2013-08-09 18:19 ` Jiahua
2013-08-09 18:51 ` Jens Axboe
2013-08-13 5:23 ` Jiahua
2013-08-13 14:41 ` Jens Axboe
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