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

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