From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists.gentoo.org ([140.105.134.102] helo=robin.gentoo.org) by nuthatch.gentoo.org with esmtp (Exim 4.62) (envelope-from ) id 1Gok4q-0002kz-GD for garchives@archives.gentoo.org; Mon, 27 Nov 2006 17:15:32 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.13.8/8.13.8) with SMTP id kARH7QUe019815; Mon, 27 Nov 2006 17:07:26 GMT Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.168]) by robin.gentoo.org (8.13.8/8.13.8) with ESMTP id kARH1qeC006342 for ; Mon, 27 Nov 2006 17:01:52 GMT Received: by ug-out-1314.google.com with SMTP id z38so1182876ugc for ; Mon, 27 Nov 2006 09:01:52 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:sender:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references:x-google-sender-auth; b=SluwKXV7aOhEuWa1GPylQQCVgMfybUr54wDjOi9mZ8eWNwtm7vVWaYbY6U5sOE2vBRWbjF6mDNZoX412OFs0bq2F/Mvk9Ml9e/wdv4LMUKAJ/mTcvU1XNUbMFKBZrL/YUUvB47/lWSFPY2kZTAYGtRtn7VtgIyDWI0U9DtdN4LI= Received: by 10.82.106.14 with SMTP id e14mr1534343buc.1164646910866; Mon, 27 Nov 2006 09:01:50 -0800 (PST) Received: by 10.82.106.2 with HTTP; Mon, 27 Nov 2006 09:01:50 -0800 (PST) Message-ID: <7573e9640611270901t1c347c2xd6eaaf6360392bd7@mail.gmail.com> Date: Mon, 27 Nov 2006 10:01:50 -0700 From: "Richard Fish" Sender: richard.j.fish@gmail.com To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Hard Disk going a lot slower now... In-Reply-To: <456A499B.4060108@comcast.net> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <4569A5ED.5000301@comcast.net> <7573e9640611261143k3c7eeb47s6f913762bc57c84d@mail.gmail.com> <456A499B.4060108@comcast.net> X-Google-Sender-Auth: 86ce53106bc44417 X-Archives-Salt: b303a3bf-7d4c-4b67-a895-76516297283a X-Archives-Hash: 2d4e4224ba7ddbde8645d0c18ad83184 On 11/26/06, Chris Walters wrote: > Well, in Gentoo, the results of "hdparm -t /dev/sda" were around 65 MB / > second. dmesg shows the drive in UDMA/133 mode, and I didn't bother > with lspci. In Windows, however, the benchmarks are quite different - > around 4300-4600 KB / second. At least I know the problem is not with > the drive. Well one thing to keep in mind here is that disk throughput is not constant everywhere. That 65MB/s is on low-numbered cylinders, typically near the outside edge of the drive, where the linear velocity is highest. That same drive may only give 20-30MB/s on the inside cylinders. What are you using to benchmark the drive under windows? Is it measuring raw disk throughput, or through the NTFS filesystem? -Richard -- gentoo-user@gentoo.org mailing list