misc/62611: bzip2 have problems on pentium 100 (pkg_add dont work)

[Colin Percival]

The following reply was made to PR misc/62611; it has been noted by GNATS.

From: Colin Percival <colin.percival at wadham.ox.ac.uk>
To: freebsd-gnats-submit at FreeBSD.org, torindel at wp.pl
Cc: kris at obsecurity.org
Subject: Re: misc/62611: bzip2 have problems on pentium 100 (pkg_add
  dont work)
Date: Mon, 16 Feb 2004 04:41:06 +0000

    Further to what Kris wrote, b(un)zip2 specifically performs
 horribly given insufficient memory -- it essentially performs
 random memory accesses (one per byte), so moving from RAM to
 swap will slow things down by a factor of about ten thousand.
    The difference between 4.9 and 5.x is probably due to the
 larger kernel; other user-space programs will be swapped out
 to accomodate bzip2, so the "free memory" is irrelevant in
 this case.
    I don't think anything can be done about this PR, except
 perhaps to document that 32MB RAM is a realistic minimum for
 running 5.x.
 
 Colin Percival