linux-kernel - Re: fadvise+sync_file_range Vs O

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Message-ID: <4612A8C5.1080103@cfl.rr.com>
Date:	Tue, 03 Apr 2007 15:19:33 -0400
From:	Phillip Susi <psusi@....rr.com>
To:	Ameya Mitragotri <ameya.mitragotri@...il.com>
CC:	linux-kernel@...r.kernel.org, suparna@...ibm.com, pbadari@...il.com
Subject: Re: fadvise+sync_file_range Vs O_DIRECT

Ameya Mitragotri wrote:
> Hello,
> I am doing some benchmarking on writes to the hdd from a simple
> application (attached).
> Im benchmarking the writes using the following
> - write with O_DIRECT
> - write with fadvise + O_SYNC
> - write with fadvise + sync_file_range

Did you use overlapped aio with O_DIRECT or just send down one request 
at a time?

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