Robert Haas wrote:
>
> Compression is
> generally bad for performance, though there are certainly exceptions.
> What it is good for is saving disk space, and that is why people use
> it.
>
I don't think disk space is still the primary reason for using compression;
shoot.. I can buy a terabyte drive for $150 on newegg and 1.5TB drives are out. I think the primary reason has been
slowlymoving towards performance. Fast
downloads, compressed web sites or simply reading/writing less to/from disk are
very common use cases for compression; all increase performance. Basically,
compression comonly offers faster data delivery. As long as you utilize a fast
compressor, like lzo or zlib "NOT level 9", its a performance win.
--
Andrew Chernow
eSilo, LLC
every bit counts
http://www.esilo.com/