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From: dth@ncc1701.cistron.net (Danny ter Haar)
To: linux-kernel@vger.kernel.org
Subject: harddisk speed: 2.4.24 20+% faster then 2.6.3
Date: Fri, 27 Feb 2004 00:04:29 +0000 (UTC)	[thread overview]
Message-ID: <c1m1id$u31$1@news.cistron.nl> (raw)

I've been checking, rechecking but cannot explain
why a "vannilla" debian install kernel (sid-testing install
cdrom) is faster then "Feisty Dunnart" on the same hardware.

hardware: Mini-itx with 1Ghz via-C3
200GB udma harddisk.

2.4.24:  
 Timing buffered disk reads:  150 MB in  3.01 seconds =  49.83 MB/sec

2.6.3 (vanilla):
 Timing buffered disk reads:  102 MB in  3.05 seconds =  33.40 MB/sec

2.6.3-mm4:
 Timing buffered disk reads:  108 MB in  3.00 seconds =  35.95 MB/sec

Bonnie tests confirm this!

hdparm & bonnie & kern.log for comparison put at: http://dth.net/c3/

Anyone any idea *why* ?

Mayby i'm overlooking something (it's kind of late on this
side of the pond) but still...

Open for feedback.

Danny

-- 
 /"\                        | Dying is to be avoided because
 \ /  ASCII RIBBON CAMPAIGN | it can ruin your whole career 
  X   against HTML MAIL     | 
 / \  and POSTINGS          | - Bob Hope


             reply	other threads:[~2004-02-27  0:06 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-02-27  0:04 Danny ter Haar [this message]
2004-02-27 20:04 ` Paul
2004-02-27 20:32   ` Danny ter Haar

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