Date: Tue, 5 Mar 2002 15:29:59 -0800 (PST) From: Julian Elischer <julian@elischer.org> To: Lars Eggert <larse@ISI.EDU> Cc: Zhihui Zhang <zzhang@cs.binghamton.edu>, "Rogier R. Mulhuijzen" <drwilco@drwilco.net>, freebsd-hackers@FreeBSD.ORG Subject: Re: A weird disk behaviour Message-ID: <Pine.BSF.4.21.0203051529100.26829-100000@InterJet.elischer.org> In-Reply-To: <3C85542B.5060100@isi.edu>
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On Tue, 5 Mar 2002, Lars Eggert wrote: > Zhihui Zhang wrote: > > Several times slower! The point is that writing less data performs > > worse. So I call it weird. > > Huh? You originally said: > > > (1) Write each block fully and sequentially, ie. 8192 bytes. > > > > (2) I still write these blocks sequentially, but for each block I only > > write part of it. > ... > > I find out the the performance of (2) is several times better than the > > performance of (1). Can anyone explain to me why this is the case? > > If (2) is better than (1), then writing *less* data is faster. Which is > it, now? > Um yeah that is what all my suggestions were based on.. > Lars > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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