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From: Bruce Cran <bruce@cran.org.uk>
To: Greg Sullivan <greg.sullivan@sullivang.net>
Cc: fio@vger.kernel.org
Subject: Re: Test files being created twice as large as requested (Win7)
Date: Fri, 17 Aug 2012 13:26:37 +0100	[thread overview]
Message-ID: <502E387D.9030901@cran.org.uk> (raw)
In-Reply-To: <CAHaS=QxT7Prz4jw8b5rZ-D3gTmejFp3D6ZA6DxcigHpEcVAJbw@mail.gmail.com>

On 16/08/2012 04:34, Greg Sullivan wrote:
> fio seems to be creating test files that are twice as large as
> requested.

The problem is that posix_fallocate isn't resetting the file pointer, so 
writes start at the end of the file.
I'll look over the Windows code to make sure there aren't any similar 
problems and create a new build.

-- 
Bruce Cran

  parent reply	other threads:[~2012-08-17 12:26 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-16  3:34 Test files being created twice as large as requested (Win7) Greg Sullivan
2012-08-17  6:28 ` Jens Axboe
2012-08-17 11:24   ` Greg Sullivan
2012-08-17 11:29     ` Jens Axboe
2012-08-17 12:26 ` Bruce Cran [this message]
2012-08-17 12:33   ` Greg Sullivan
2012-08-17 12:45     ` Bruce Cran
2012-08-17 13:36 ` Bruce Cran

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