On Fri, Jul 15, 2005 at 06:58:24PM -0700, Jake Hamby wrote:

> I just did a quick performance test of bsdtar vs. gnutar, star, and Solaris 
> tar in extracting a large (704MB uncompressed) .tar.bz2 archive:

In the case of compressed files, especially bzip2, decompression time
dominates.  You should consider testing uncompressed files as well if
you want to help isolate tar from bzip2.  You could also determine
whether each tar's decompress-and-unpack option is faster or slower
than piping it the output of bzcat.  And you definitely need to
discard the first run, since some extra time is needed the first time
to read the file into memory from media (or you need to use a file
that's many times the size of memory, but that may be impossible).

I'm not saying your results are wrong, but quick and dirty benchmark
results can be misleading.

-- 
Keith M Wesolowski              "Sir, we're surrounded!" 
Solaris Kernel Team             "Excellent; we can attack in any direction!" 
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