Gentoo Archives: gentoo-user

From: Richard Fish <bigfish@××××××××××.org>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] usb1 performance out of usb2 external HD
Date: Mon, 16 Jan 2006 13:46:22
Message-Id: 7573e9640601160540q35c78777ja920a85578209f53@mail.gmail.com
In Reply to: [gentoo-user] usb1 performance out of usb2 external HD by Iain Buchanan
1 On 1/15/06, Iain Buchanan <iaindb@××××××××××××.au> wrote:
2 > Hi all,
3 > $ sudo hdparm -tT /dev/sdd
4 >
5 > /dev/sdd:
6 > Timing cached reads: 3640 MB in 2.00 seconds = 1820.28 MB/sec
7 > Timing buffered disk reads: 30 MB in 3.13 seconds = 9.60 MB/sec
8 >
9 > 9.6 is pretty slow! I should be able to get at least double that...
10
11 Please post the dmesg output from plugging in the drive. Also the
12 output of "zgrep USB /proc/config.gz | grep -v "^#" (or use grep &
13 /usr/src/linux/.config if you don't have /proc/config.gz).
14
15 > And as I've said, I know this port is usb 2.0.
16
17 Yes, true 1.1 speed would be about 1MB/sec.
18
19 -Richard
20
21 --
22 gentoo-user@g.o mailing list

Replies

Subject Author
Re: [gentoo-user] usb1 performance out of usb2 external HD Iain Buchanan <iaindb@××××××××××××.au>