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 1Eydes-00034o-EF for garchives@archives.gentoo.org; Mon, 16 Jan 2006 23:21:06 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.13.5/8.13.5) with SMTP id k0GNJ4gt028915; Mon, 16 Jan 2006 23:19:04 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 k0GNH4qx028370 for ; Mon, 16 Jan 2006 23:17:05 GMT Received: from orpheus (unknown [150.101.6.82]) by mail.netspace.net.au (Postfix) with ESMTP id 55D9A7C72E for ; Tue, 17 Jan 2006 10:17:01 +1100 (EST) Subject: Re: [gentoo-user] usb1 performance out of usb2 external HD From: Iain Buchanan To: gentoo-user@lists.gentoo.org In-Reply-To: <7573e9640601160621i367dfcc6l8296dc8c01cf1f4d@mail.gmail.com> References: <1137393538.17254.12.camel@orpheus> <7573e9640601160540q35c78777ja920a85578209f53@mail.gmail.com> <1137420487.14296.5.camel@orpheus> <7573e9640601160621i367dfcc6l8296dc8c01cf1f4d@mail.gmail.com> Content-Type: text/plain Date: Tue, 17 Jan 2006 08:46:55 +0930 Message-Id: <1137453415.20207.6.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: a83dba83-26ba-4531-a2cf-031d985dfb1f X-Archives-Hash: 217b8bbf9578b350278d8f7cff498db2 On Mon, 2006-01-16 at 07:21 -0700, Richard Fish wrote: > On 1/16/06, Iain Buchanan wrote: > > On Mon, 2006-01-16 at 06:40 -0700, Richard Fish wrote: > > > On 1/15/06, Iain Buchanan wrote: > > > > > > > > 9.6 is pretty slow! I should be able to get at least double that... > > > > actually, I should be able to get 4x that... > > No, you won't. The max I've ever seen any USB drive run at is about > 30MB/sec, even when the same drive installed internally will run at > 65MB/sec. My best 2.5" case and drive will pump about 25MB/sec. well, I was estimating, and I am expecting about 30+MB/s given a friend gets the same with the same drive. > Ok, I've never used one of these combination devices. I'm a little > concerned, because the maximum throughput of most media readers is > about 10MB/sec...so hoping this is not a limitation of the chipset. nope, windows does the transfer in about 10/15 seconds, (I can time it exactly if you're interested) making the speed (conservatively) about 7Mbytes/sec. > > relevant dmesg: > > Looks normal... > > > sdd: sdd1 sdd2 sdd3 sdd4 < sdd5 sdd6 sdd7 sdd8 sdd9 sdd10 sdd11 > > > Damn, and I thought I made a lot of volumes.... ;-> yeah, its the way it has to be unfortunately. This will eventually become my internal HD, so I need it to dual boot, plus I added a few more partitions for linux (/ /boot /usr /home) plus a couple for windows - one for play and one for work... anyway. > > $ zgrep USB /proc/config.gz | grep -v "^#" > I think you need to turn on some of the options under USB Mass Storage > support. Particularly > > CONFIG_USB_STORAGE_FREECOM=y > > but I don't think there is any harm in turning all of them on...it is > very likely that one of these will give you the best performance. ok I'll try, thanks. -- Iain Buchanan Superior ability breeds superior ambition. -- Spock, "Space Seed", stardate 3141.9 -- gentoo-user@gentoo.org mailing list