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 4.54) id 1EyO4v-0003c4-H7 for garchives@archives.gentoo.org; Mon, 16 Jan 2006 06:42:57 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.13.5/8.13.5) with SMTP id k0G6f4WA024202; Mon, 16 Jan 2006 06:41:04 GMT Received: from mail.netspace.net.au (cumulus.netspace.net.au [203.10.110.72]) by robin.gentoo.org (8.13.5/8.13.5) with ESMTP id k0G6d73C025955 for ; Mon, 16 Jan 2006 06:39:08 GMT Received: from orpheus (unknown [150.101.6.82]) by mail.netspace.net.au (Postfix) with ESMTP id 7586D7D8D2 for ; Mon, 16 Jan 2006 17:39:04 +1100 (EST) Subject: [gentoo-user] usb1 performance out of usb2 external HD From: Iain Buchanan To: gentoo-user@lists.gentoo.org Content-Type: text/plain Date: Mon, 16 Jan 2006 16:08:58 +0930 Message-Id: <1137393538.17254.12.camel@orpheus> 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 X-Mailer: Evolution 2.4.2.1 Content-Transfer-Encoding: 7bit X-Archives-Salt: cc5dfb3b-d2b6-42df-9fd3-787b4fdffe5b X-Archives-Hash: bf60bd3020835aff02f5bcdadef33659 Hi all, I have a 2.5in usb HD and 2 external usb2 cases. I've been getting pretty average performance with a 7200 rpm drive in both cases, but I just thought this was the way it is. However, I just did a test: $ time cp /usr/portage/distfiles/OOo_2.0.1_LinuxIntel_install.tar.gz /mnt/usb-storage/device-0/partition-5/ real 1m20.903s which is pretty slow. I copied the same file in winblows (without changing usb ports or anything) and it copies in about 15 seconds. I noticed I had uhci-hcd loaded (the usb 1 module?) so I unloaded it, and my keyboard stopped working!!! So using the laptop keyboard, I replugged the HD (now without uhci-hcd) and it still goes slow... $ sudo hdparm -tT /dev/sdd /dev/sdd: Timing cached reads: 3640 MB in 2.00 seconds = 1820.28 MB/sec Timing buffered disk reads: 30 MB in 3.13 seconds = 9.60 MB/sec 9.6 is pretty slow! I should be able to get at least double that... And as I've said, I know this port is usb 2.0. Any hints? thanks, -- Iain Buchanan IN MY OPINION anyone interested in improving himself should not rule out becoming pure energy. -- Jack Handley, The New Mexican, 1988. -- gentoo-user@gentoo.org mailing list