Re: Compression with CLIENT_COMPRESS protocol ?

[Fred Lindberg]

On Tue, 27 Apr 1999 18:06:54 +0200, BAUMEISTER Alexandre wrote:

>  Is  it  normal  ?  Is  there  a plan to optimize the CLIENT_COMPRESS
>  protocol  in order to have more rapid transfers ? Why not to use the
>  gzip algorithm (it's GNU isn't it ?) ?

I don't know how CLIENT_COMPRESS is implemented, but usually, network
bandwidth is NOT the bottle neck. Thus, the compression should be able
to work with a small window and be very fast, rather than compress
maximally. The gain is in the number of buffer reads required, etc.
This should be noticeable only with transfer of relatively large
volumes of data (large result sets).

When compressing files, gzip can take its time and work with a large
window.


-Sincerely, Fred

(Frederik Lindberg, Infectious Diseases, WashU, St. Louis, MO, USA)