Re: Reiser4 und LZO compression

[Nigel Cunningham]

Hi.

On Mon, 2006-08-28 at 22:15 +0400, Edward Shishkin wrote:
> Stefan Traby wrote:
> > On Mon, Aug 28, 2006 at 10:06:46AM -0700, Hans Reiser wrote:
> > 
> > 
> >>Hmm.  LZO is the best compression algorithm for the task as measured by
> >>the objectives of good compression effectiveness while still having very
> >>low CPU usage (the best of those written and GPL'd, there is a slightly
> >>better one which is proprietary and uses more CPU, LZRW if I remember
> >>right.  The gzip code base uses too much CPU, though I think Edward made
> > 
> > 
> > I don't think that LZO beats LZF in both speed and compression ratio.
> > 
> > LZF is also available under GPL (dual-licensed BSD) and was choosen in favor
> > of LZO for the next generation suspend-to-disk code of the Linux kernel.
> > 
> > see: http://www.goof.com/pcg/marc/liblzf.html
> > 
> 
> thanks for the info, we will compare them

For Suspend2, we ended up converting the LZF support to a cryptoapi
plugin. Is there any chance that you could use cryptoapi modules? We
could then have a hope of sharing the support.

Regards,

Nigel

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