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To: Sergei Mozhaisky <technix@ukr.net>
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   of "Wed, 19 Nov 2003 12:53:12 +0200." <E1AMPxQ-000EwV-00@storage.ukr.net> 
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Date: Wed, 19 Nov 2003 14:20:21 -0500
From: Stephan Uphoff <ups@stups.com>
cc: freebsd-fs@freebsd.org
Subject: Re: Compressed filesystem for FreeBSD 
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Sergei Mozhaisky wrote:
> Hello everyone.
> 
> I am searching for compressed filesystem for FreeBSD.
> 
> Why do I need compressed filesystem? I am developer of FreeBSD-based
> LiveCD, and the main problem of liveCD is loading speed - it's too
> slow, comparing with Knoppix or other Linux LiveCD.


Currently the f_iosize of a CD filesystem is set using the f_bsize. (normally 
2048)
This forces vnode_pager_generic_getpages() to use vnode_pager_input_smlfs().

Replacing the line:
	sbp->f_iosize = sbp->f_bsize;	/* XXX */
in cd9660_vfsops.c with:
	sbp->f_iosize = (sbp->f_bsize > PAGE_SIZE) ? sbp->f_bsize : PAGE_SIZE;

should be possible (Warning not tested!) and should help you with the loading 
speed.

	Stephan