Re: Low HDD tranfer rate with FreeBSD 5.3-Release

2005-05-18 Thread Hans Ottevanger
Amandeep wrote: [... dmesg snipped ...] A Eric Anderson wrote: Amandeep wrote: Hi all, I am using Tyan S2098 MB with 160GB Maxtor ATA Drive and the transfer rate is very low. FreeBSD 5.3-Release. Any ideas what is going on here. The transfer rate is about 15MB/s when I run #dd if=/dev/zero

Re: Low HDD tranfer rate with FreeBSD 5.3-Release

2005-05-18 Thread Jamie Heckford
On Tue, May 17, 2005 at 10:34:23PM +0200, Hans Ottevanger wrote: Amandeep wrote: [... dmesg snipped ...] A Eric Anderson wrote: Amandeep wrote: Hi all, I am using Tyan S2098 MB with 160GB Maxtor ATA Drive and the transfer rate is very low. FreeBSD 5.3-Release. Any ideas what

Re: Low HDD tranfer rate with FreeBSD 5.3-Release

2005-05-09 Thread John Von Essen
That sounds about right! You weren't expecting to get 100Mb/s were you?? -john On Mon, 9 May 2005, Amandeep wrote: Hi all, I am using Tyan S2098 MB with 160GB Maxtor ATA Drive and the transfer rate is very low. FreeBSD 5.3-Release. Any ideas what is going on here. The transfer rate is

Re: Low HDD tranfer rate with FreeBSD 5.3-Release

2005-05-09 Thread Erik Udo
But he is getting over 100 megabits per second! Anyway, i'm getting 50~60MB/s on my ad0: 194481MB Maxtor 6Y200P0/YAR41BW0 [395136/16/63] at ata0-master UDMA133 So i think 15MB/s is a little slow. John Von Essen wrote: That sounds about right! You weren't expecting to get 100Mb/s were you?? -john

Low HDD tranfer rate with FreeBSD 5.3-Release

2005-05-09 Thread Amandeep
Hi all, I am using Tyan S2098 MB with 160GB Maxtor ATA Drive and the transfer rate is very low. FreeBSD 5.3-Release. Any ideas what is going on here. The transfer rate is about 15MB/s when I run #dd if=/dev/zero of=/usr/junk bs=8192 then do #iostat 1

Re: Low HDD tranfer rate with FreeBSD 5.3-Release

2005-05-09 Thread Amandeep
Hi Eric, Shouldnt it be around 54MB/s for a regular IDE drive. Here is the output of dmesg and iostat Copyright (c) 1992-2004 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD

Re: Low HDD tranfer rate with FreeBSD 5.3-Release

2005-05-09 Thread Warner Losh
But he is getting over 100 megabits per second! ata100 is 100M*B*/s, not 100Mb/s. However, unless you are reading out of the cache of the drive, you'll get a much lower speed (on the order of 10-20MB/s I think from that generation of disks). Warner

Re: Low HDD tranfer rate with FreeBSD 5.3-Release

2005-05-09 Thread John Von Essen
Actually, using a variety of Maxtor drives, I don't think I have ever gotten anything better then 11.5 Megabytes/sec - and this was on boards with ATA-100. About a year ago I had several Tyan S2099's with a 40Gb Seagate, and was doing drive duplications with dd and a FreeBSD boot CD. Again, 11

Re: Low HDD tranfer rate with FreeBSD 5.3-Release

2005-05-09 Thread Eric Anderson
Eric Anderson wrote: Amandeep wrote: Hi all, I am using Tyan S2098 MB with 160GB Maxtor ATA Drive and the transfer rate is very low. FreeBSD 5.3-Release. Any ideas what is going on here. The transfer rate is about 15MB/s when I run #dd if=/dev/zero of=/usr/junk bs=8192 then do

Re: Low HDD tranfer rate with FreeBSD 5.3-Release

2005-05-09 Thread Eric Anderson
John Von Essen wrote: Actually, using a variety of Maxtor drives, I don't think I have ever gotten anything better then 11.5 Megabytes/sec - and this was on boards with ATA-100. About a year ago I had several Tyan S2099's with a 40Gb Seagate, and was doing drive duplications with dd and a FreeBSD

Re: Low HDD tranfer rate with FreeBSD 5.3-Release

2005-05-09 Thread Dan Nelson
In the last episode (May 09), Eric Anderson said: Eric Anderson wrote: Amandeep wrote: I am using Tyan S2098 MB with 160GB Maxtor ATA Drive and the transfer rate is very low. FreeBSD 5.3-Release. Any ideas what is going on here. The transfer rate is about 15MB/s when I run #dd

Re: Low HDD tranfer rate with FreeBSD 5.3-Release

2005-05-09 Thread Mike Tancsa
On Mon, 09 May 2005 11:26:39 -0700, in sentex.lists.freebsd.hackers you wrote: Hi Eric, Shouldnt it be around 54MB/s for a regular IDE drive. As I did a [releng5-865]# dd if=/dev/zero of=/tmp/test bs=8192 count=3 3+0 records in 3+0 records out 24576 bytes transferred in

Re: Low HDD tranfer rate with FreeBSD 5.3-Release

2005-05-09 Thread Mike Tancsa
On Mon, 9 May 2005 14:02:45 -0500, in sentex.lists.freebsd.hackers you wrote: Yes, try 64k instead of 8k, and also compare read speeds. If you have the time (could take an hour or so), try dd if=/dev/ad0 of=/dev/null bs=64k, run an iostat 60 in another window, let the dd run through the entire

Re: Low HDD tranfer rate with FreeBSD 5.3-Release

2005-05-09 Thread Peter Kieser
ad0: 78167MB Maxtor 4R080J0/RAMB1TU0 [158816/16/63] at ata0-master UDMA133 su-2.05b# dd if=/dev/zero of=/tmp/test bs=8192 count=3 3+0 records in 3+0 records out 24576 bytes transferred in 4.090394 secs (60082231 bytes/sec) ad0: 239372MB Maxtor 6B250R0/BAH41E00 [486344/16/63] at

Re: Low HDD tranfer rate with FreeBSD 5.3-Release

2005-05-09 Thread jason henson
Amandeep wrote: Hi all, I am using Tyan S2098 MB with 160GB Maxtor ATA Drive and the transfer rate is very low. FreeBSD 5.3-Release. Any ideas what is going on here. The transfer rate is about 15MB/s when I run #dd if=/dev/zero of=/usr/junk bs=8192 then do #iostat 1