Date: Wed, 19 Dec 2001 07:34:13 +0100 From: Gerhard Sittig <Gerhard.Sittig@gmx.net> To: "stable@freebsd.org" <stable@freebsd.org> Subject: Re: Waaaarg, we just blew out the kernel again.. Message-ID: <20011219073412.E1494@shell.gsinet.sittig.org> In-Reply-To: <Pine.WNT.4.43.0112191104290.1276-100000@den2>; from juha@saarinen.org on Wed, Dec 19, 2001 at 11:05:23AM %2B1300 References: <20011218225438.C1494@shell.gsinet.sittig.org> <Pine.WNT.4.43.0112191104290.1276-100000@den2>
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On Wed, Dec 19, 2001 at 11:05 +1300, Juha Saarinen wrote:
> On Tue, 18 Dec 2001, Gerhard Sittig wrote:
>
> > bzip2 has been around for a while and has been shipped since
> > 4.4-RELEASE. :) When I see the constant "who put another
> > three KB into the kernel and thus broke release?" against the
> > "9KB plus for the loader versus 40KB gain for the kernel"
> > switching to bzip2 should give some room to breath(sp?).
>
> Is there much difference in speed between the compression methods? That
> is, would bzip2 be an issue on older, low-spec machines?
I understand that the downside in using bzip2 is not speed but
memory consumption. But I'm not an expert in this. I only know
that the "b" in bzip is for "block oriented" and that's why you
see the decompressor "jump in chunks" and you definitely need a
larger buffer than for gzipped archives. Adding the special
needs of an install floppy (ramdisk) it could raise memory
requirements a little more. Unless you restrict yourself to
"moderate" parameters at compression time. That's probably
where the "we don't gain 40KB but some 15KB" stated in another
article comes from. As stated above that's my simple
understanding from using these programs and not from
fiddling with their internals.
virtually yours 82D1 9B9C 01DC 4FB4 D7B4 61BE 3F49 4F77 72DE DA76
Gerhard Sittig true | mail -s "get gpg key" Gerhard.Sittig@gmx.net
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