Antwort: Re: [Mod_gzip] Mod Gzip

[mod_gzip@lists.over.net]

Hi Terry,


> My site (funtrivia.com) gets fairly heavy traffic
> (11 million+ pageviews/month) and the bandwidth
> costs have been quickly rising.
> I have the compression running site-wide now (all
> html, all cgi, php, cfml pages) and the server
> load has not risen much at all.

Then you seem to have a nice powerful machine.

Christian Kruse, who made the recent mod_gzip
releases, runs mod_gzip on a site with similar
traffic (20 million hits and more than 60 GB gzip
compressed volume per month), which is hosted on
a dual 1GHz processor PC machine with BSD linux.
This one would not have been able to use mod_gzip
had Christian not done a lot of things to reduce
the CPU load, like
a) using the mod_gzip negotiation feature where-
   ever possible (which is a main reason why the
   1.3.26.1a release of mod_gzip now has its own
   caching and refreshing mechanism) and
b) run a caching Squid 2.5 as a front end to the
   compressing Apache (this one understands the
   negotiational nature of compressed content).
But then, the machine mentioned here had other CPU
intensive tasks, like a slow web forum and a slow
search engine ...

> Are there any notable downsides that I am yet to
> discover?

Make yourself familiar with the "Vary:" topic:
     http://www.schroepl.net/projekte/mod_gzip/cache.htm
and with the fact that not every browser will
tell you the truth about what it is able to
handle correctly:
     http://www.schroepl.net/projekte/mod_gzip/browser.htmBesides these,
you are going to experience what
you already do: Savings. ;-)


Regards, Michael