Comments on: mod_deflate gzip compression http/1.1 vs. 1.0

By: Mikhailov Anatoly

Mikhailov Anatoly — Wed, 17 Dec 2008 04:16:27 +0000

Mod_deflate in apache2 is pretty much the same as mod_gzip in apache1.3, and mod_deflate is included with the apache2 source package. Both modules allow compressing of the apache server on the fly

http://railsgeek.com/2008/12/16/apache2-httpd-improving-performance-mod_deflate-gzip

By: Tim Novinger

Tim Novinger — Tue, 16 Dec 2008 15:08:43 +0000

THANK YOU!

I’ve been trying all morning to try and get mod_gzip working on 10.5.6 Leopard Server with no luck. However once I found your post and tossed the following code into my vhosts file (located in /private/etc/apache2/sites/virtual_host_global.conf) it finally worked.

AddOutputFilterByType DEFLATE text/html text/plain text/css
AddOutputFilterByType DEFLATE text/javascript application/x-javascript
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4.0[678] no-gzip
BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
DeflateFilterNote Input input_info
DeflateFilterNote Output output_info
DeflateFilterNote Ratio ratio_info

// Tim

By: deckard

deckard — Wed, 19 Dec 2007 05:17:51 +0000

Those few lines of log were produced from the following:
DeflateFilterNote Input input_info
DeflateFilterNote Output output_info
DeflateFilterNote Ratio ratio_info
LogFormat ‘”%r” %{output_info}n/%{input_info}n (%{ratio_info}n%%)’ deflate
CustomLog /var/www/mysizzite.com/shared/log/myapp_deflate_log deflate

Which was added to httpd-vhosts.conf to debug mod_deflate. The HTTP response codes for the above would have all been 200 so… not very exciting to include that. By default Apache doesn’t log mod_deflate activity, which is why you have to add it yourself. And there’s not much point in adding other logging info when that’s all being saved in the regular ‘combined’ log files.

By: niq

niq — Wed, 19 Dec 2007 00:01:08 +0000

Hehe.

Where’s that log sample coming from? Apache’s logs normally include the HTTP response code, which would’ve made it much clearer what was going on.