Flexible I/O Tester development
 help / color / mirror / Atom feed
From: Bruce Cran <bruce@cran.org.uk>
To: "Jens Axboe" <axboe@kernel.dk>,
	"Sébastien Bouchex Bellomié" <sbouchex@infovista.com>,
	"fio@vger.kernel.org" <fio@vger.kernel.org>,
	bcran@fusionio.com
Subject: Re: ioengine=sync issue on Windows
Date: Tue, 01 Apr 2014 21:11:00 -0600	[thread overview]
Message-ID: <533B7FC4.70700@cran.org.uk> (raw)
In-Reply-To: <53208C60.8090708@kernel.dk>


On 3/12/2014 10:33 AM, Jens Axboe wrote:
> On 03/12/2014 09:41 AM, Sébastien Bouchex Bellomié wrote:
>>
>> fio: pid=5144, err=5/file:backend.c:768, func=full resid, 
>> error=Input/output error
>>
>> random_read: (groupid=0, jobs=1): err= 5 (file:backend.c:768, 
>> func=full resid, error=Input/output error): pid=5144: Wed Mar 12 
>> 16:36:45 2014
> Bruce, do you know why that is?
>

It appears to be because after seeking, there's 92 bytes before a space 
in the file (i.e. it's a sparse file), and instead of filling the buffer 
with 0's read() is for some reason returning 0.

-- 
Bruce


  parent reply	other threads:[~2014-04-02  3:11 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-12 15:41 ioengine=sync issue on Windows Sébastien Bouchex Bellomié
2014-03-12 16:33 ` Jens Axboe
2014-03-12 17:48   ` Bruce Cran
2014-03-12 18:02   ` Bruce Cran
2014-03-12 19:11     ` Jens Axboe
2014-03-12 19:24       ` Bruce Cran
2014-03-12 19:30         ` Jens Axboe
2014-03-12 19:36           ` Bruce Cran
2014-03-12 19:38             ` Jens Axboe
2014-03-12 19:41               ` Jens Axboe
2014-03-12 19:44                 ` Bruce Cran
2014-04-02  3:11   ` Bruce Cran [this message]
2014-04-03 22:42     ` Bruce Cran
2014-04-04  1:57       ` Jens Axboe
2014-04-04  2:14         ` Bruce Cran
2014-04-04  2:17           ` Jens Axboe
2014-04-04  2:26             ` Bruce Cran
2014-04-04  2:35               ` Jens Axboe
2014-04-04  3:12                 ` Bruce Cran
2014-04-04  3:28                   ` Jens Axboe
2014-04-28 22:04                     ` Bruce Cran

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=533B7FC4.70700@cran.org.uk \
    --to=bruce@cran.org.uk \
    --cc=axboe@kernel.dk \
    --cc=bcran@fusionio.com \
    --cc=fio@vger.kernel.org \
    --cc=sbouchex@infovista.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox