From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.12] helo=sc8-sf-mx2.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1Bhib5-00065z-1I for user-mode-linux-devel@lists.sourceforge.net; Mon, 05 Jul 2004 22:34:27 -0700 Received: from letters.cs.ucsb.edu ([128.111.41.13]) by sc8-sf-mx2.sourceforge.net with esmtp (Exim 4.34) id 1Bhib4-0004Nt-Mg for user-mode-linux-devel@lists.sourceforge.net; Mon, 05 Jul 2004 22:34:26 -0700 Message-ID: <40EA39DC.5030409@cs.ucsb.edu> From: "Lamia M.Youseff" MIME-Version: 1.0 Subject: Re: Please upgrade! (was: Re: [uml-devel] does O_DIRECT hinder greatly file reading performance but not writing??) References: <40E51FF0.3020801@cs.ucsb.edu> <200407032128.40746.blaisorblade_spam@yahoo.it> Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: user-mode-linux-devel-admin@lists.sourceforge.net Errors-To: user-mode-linux-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: The user-mode Linux development list List-Post: List-Help: List-Subscribe: , List-Archive: Date: Mon, 05 Jul 2004 22:34:20 -0700 To: BlaisorBlade Cc: user-mode-linux-devel@lists.sourceforge.net Hello All, Hi BlaisorBlade,
I upgraded to 2.4.24-1um, but the same error still persist on the um..i.e. the disk reads takes so long when used with the O_DIRECT flag !!
Anybody has any explanation for that??

Thank you,
Lamia Youseff

BlaisorBlade wrote:

Alle 10:42, venerdì 2 luglio 2004, Lamia M.Youseff ha scritto:

I am running UML 2.4.19 on top of kernel 2.4.25.  I have time output like
that (average of 20 runs)

Well, could you try upgrading it to 2.4.24-1um and retesting? That UML is old, 
buggy, and outdated.

-- 
..........................................................
: Lamia M.Youseff          :  lyouseff@cs.ucsb.edu       :
: Ph.D student             :  www.cs.ucsb.edu/~lyouseff  :
: University of California,:                             :
: Santa Barbara (UCSB)     :                             :
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: "There are no impossible dreams; there is just our     :
: limited perception of what is possible"                :
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