Subject: Re: 160GB IDE Drives under NetBSD?
To: NetBSD/i386 Discussion List <port-i386@NetBSD.ORG>
From: Greg A. Woods <woods@weird.com>
List: port-i386
Date: 03/23/2002 15:07:22
[ On Saturday, March 23, 2002 at 15:01:29 (+0100), Wojciech Puchar wrote: ]
> Subject: Re: 160GB IDE Drives under NetBSD?
>
> how big blocksize to you think is OK for large disks?
In terms of optimum performance that probably depends on what the basic
low-level read size of the disk is and how it allocates and uses buffers
in its onboard cache.
> i use 8192 (general default) and 1024/fragment
>
> will 16384/2048 make general filesystem I/O better?
Otherwise it depends on what you put on it and how you use it, now doesn't it :-)
> (and waste more space)
Which also depends on what you put on it too! :-)
I've been quite happy using "-b 16384 -f 2048" for squid filesystems,
but for source code, build products, etc., I'm happier with the default,
but I'd go up to 16k if I had to support a really large FS.
--
Greg A. Woods
+1 416 218-0098; <gwoods@acm.org>; <g.a.woods@ieee.org>; <woods@robohack.ca>
Planix, Inc. <woods@planix.com>; VE3TCP; Secrets of the Weird <woods@weird.com>