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Date: Tue, 09 Dec 2003 15:27:25 -0800
From: Tim Kientzle <kientzle@acm.org>
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Subject: Re: cvs commit: src/sys/i386/conf GENERIC src/sys/alpha/confGENERIC
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David O'Brien wrote:
> On Mon, Dec 08, 2003 at 11:00:20PM -0800, Sean Chittenden wrote:
> 
>> ... Moving from gzip to bzip2 for the base files reduces the
>>current size of the base files by about 13-22%.
> 
> I've been trying to move us to bzip2 for the base distribution files
> since 4.6 (2 years now).  RE has blocked it before ...

Two observations:
  1) bunzip2 requires almost 4MB of memory,
     compared to gunzip's 600KB.
  2) bunzip2 is about 10x slower than gunzip on my system.
     (Decompressing the openoffice tarball: 42s vs. 4s)

Switching to bzip2 format could significantly slow
installs and/or boost minimum memory requirements.

Has anyone built a set of bzip2 install CDs and measured
the time hit and/or memory requirements?

Tim