DragonFly kernel List (threaded) for 2004-08
Re: ideas 3
:On Wed, Aug 11, 2004 at 05:11:23PM +0200, Erik P. Skaalerud wrote:
:> I think he's talking about the new package system when its used, also
:> compression of our iso-images.
:For the ISO image IMO the compression/decompression time vs. time saving
:is too bad. It took me ages on a P4 to compress the image :)
Well, I dunno. bzip2 is now fairly ubiquitous in the world of UNIX,
and it does produce ~17% better compressed ISOs. While I don't think
it is a good general choice due to its lack of flexibility in cpu
consumption (1), it may be a good choice for ISO distribution. bzip2 -9
produces a 70MB file while gzip -9 produces an 82MB file.
I will consider it for the next release.
note 1: bzip2 takes 22 seconds to decompress the ISO on my AMD64 box
where gzip takes only 3, and while bzip2 -9 and gzip -9 compression
times are about the same at ~50-60 seconds, bzip2 -2 also takes ~50-60
seconds while gzip -2 only takes 11. So gzip is far more cpu efficient
in general terms.