HI Stephen,
Mod_Gzip works well, however there are problems. For example, some
browsers choke on gzipped .css and .js files and reported problems with
SSL. Which is why most mod_gzip configurations exclude these file types
from compression.
Also another consideration is how the compression algorithm
handles dynamic output from CGI's.
A good solution would handle both static (e.g., flat files) and
dynamic output (e.g., cgi's) quickly/transparently.
I'm interested to hear what experiences others have had ...
Nige
> Hi,
>
> Does anyone have experience with automatic compression with the
> output of mod_perl/CGI programs to speed up end-user performance?
>
> As far as I can tell, I have two main options: Apache::Compress
> and mod_gzip (see below).
>
> * Does anyone have recommendations on Apache::Compress vs mod_gzip?
> * In a two-server proxy configuration where the mod_perl server
> serves up dynamic content, does the compression need to be on
> the proxy server? mod_perl server? both? either?
> * If the compression needs to be on the proxy server, would
> that make the mod_gzip option the only viable one?
>
> I am leaning toward mod_gzip because once I learn how to configure
> and use it, I can use it on servers that don't have mod_perl
> installed. Any catches to this?
>
> Stephen
> _____________________
>
> OPTION 1: Apache::Filter + Apache::Compress
>
> I see in the mod_perl guide that it recommends Apache::Filter
> and Apache::Gzip for content compression.
>
> http://perl.apache.org/docs/1.0/guide/modules.html#Apache__Gzip___Auto_compr
> ess_web_files_with_Gzip
>
> I searched CPAN at http://search.cpan.org and could not find
> Apache::Gzip, but rather found Apache::Compress.
>
> http://search.cpan.org/author/KWILLIAMS/Apache-Filter/Filter.pm
> http://search.cpan.org/author/KWILLIAMS/Apache-Compress/Compress.pm
>
> It seems that this supercedes the prior solution.
>
> http://search.cpan.org/author/ANDK/Apache-GzipChain/GzipChain.pm
>
> It also seems that Apache::Compress builds on Apache::Gzip (which
> Ken Williams mentions is in the Apache Eagle book but not on CPAN),
> Apache::GzipChain, and other work, so it seems like that is the
> current state-of-the-art mod_perl solution.
>
> OPTION 2: mod_gzip
>
> The mod_gzip project seems to do much the same thing, but it does not
> require mod_perl to do it.
>
> http://sourceforge.net/projects/mod-gzip/
>
>
>
--
Nigel Hamilton
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