Subject: Re: New IDE controller.
To: Richard Rauch <rauch@rice.edu>
From: Wojciech Puchar <wojtek@chylonia.3miasto.net>
List: port-i386
Date: 03/05/2002 08:15:52
>
> Version 1.01 ------Sequential Output------ --Sequential Input- --Random-
> -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
> Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
> hermes 300M 10718 24 10369 6 5119 3 24210 76 26282 11 83.2 0
it's quite slow writes anyway...
> ------Sequential Create------ --------Random Create--------
> -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
> files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
> 16 367 38 +++++ +++ 1937 19 514 53 953 99 1093 41
> hermes,300M,10718,24,10369,6,5119,3,24210,76,26282,11,83.2,0,16,367,38,+++++,+++,1937,19,514,53,953,99,1093,41
>
> I thought that the seeks should be better than that, but my (completely
> different disk/controller/etc.) Gateway2000 machine gets about 70
> seeks/sec, so maybe the seeks aren't so bad. It's certainly 10 times what
> I was getting. (Note that the files are 300MB, so that may affect
> seeks...)
>
> Subjectively, the drive is *much* nicer than the old one. X starts up in
> a couple of seconds, isntead of taking a minute, for example.
>
>
> I don't know if I'll keep the Maxtor controller or not. It lets my drive
> do UDMA 5, I think (the VIA motherboard controller only supports UDMA 2),
> but I'm not sure how much real-world differnce that makes. It feels a
> little faster on the Maxtor controller, but not vastly better.
>
>
> ``I probably don't know what I'm talking about.'' --rauch@math.rice.edu
>
----------------------------------------------------------------------
Instead of asking why a piece of software is using "1970s technology,"
start asking why software is ignoring 30 years of accumulated wisdom.