What are some basic Apache performance optimizations?
here
For example, my MediaWiki page cut about 200ms off the ping of a page that needed to query the database after enabling PHP APC–as compared to no caching. Some of the Apache modules installed include:
-cloudflare_module
-deflate_module; installed by default, but I have not configured anything, so I'm not sure if it's actually sending compressed output
-expires_module; installed, and I tried to configure via /etc/apache2/sites-available/domain.com with "access plus 7 days" configuration, but it doesn't seem to have made an appreciable difference
-include_module
-rewrite_module
Suggestions for whatever modules and performance tweaks you always do would be very welcome--thanks!
6 Replies
@hoopycat:
Since you're running Ubuntu 12.04, you can use PHP-FPM to move PHP processing out of Apache. This is generally a very good idea. Thanks. I'm giving it a shot, but I've misconfigured something. I've tried referring to the guides at
sudo apt-get install libapache2-mod-fastcgi php5-fpm php5
sudo a2enmod actions fastcgi alias
sudo service apache2 restart
sudo nano /etc/apache2/sites-available/dryang.org
inserted this between
Action php5-fcgi /php5-fcgi
Alias /php5-fcgi /usr/lib/cgi-bin/php5-fcgi
FastCgiExternalServer /usr/lib/cgi-bin/php5-fcgi -host 127.0.0.1:9000 -pass-header Authorization
Alternatively, I've also tried:
FastCgiExternalServer /srv/www/dryang.org/public_html/php5.external -host 127.0.0.1:9000
AddHandler php5-fcgi .php
Action php5-fcgi /usr/lib/cgi-bin/php5.external
Alias /usr/lib/cgi-bin/ /srv/www/dryang.org/public_html/
However, with either one, I still get "Server API: Apache 2.0 Handler." Can anyone pick out what mistake I've made? apache2ctl -M lists fastcgi_module (shared), so it seems that it's enabled, just not configured to be used.
ps aux shows that things are loaded up:
root 28362 0.0 0.7 77060 3928 ? Ss 16:07 0:00 php-fpm: master process (/etc/php5/fpm/php-fpm.conf)
www-data 28363 0.0 0.6 77060 3120 ? S 16:07 0:00 php-fpm: pool www
www-data 28364 0.0 0.6 77060 3120 ? S 16:07 0:00 php-fpm: pool www
www-data 28365 0.0 0.6 77060 3120 ? S 16:07 0:00 php-fpm: pool www
www-data 28366 0.0 0.6 77060 3120 ? S 16:07 0:00 php-fpm: pool www
www-data 28528 0.0 0.7 31456 4044 ? S 16:34 0:00 /usr/sbin/fcgi-pm -k start
/var/log/php5-fpm.log shows:
[22-Jul-2012 16:08:00] NOTICE: fpm is running, pid 28362
[22-Jul-2012 16:08:00] NOTICE: ready to handle connections
Edit: Success! Thanks to heckman in IRC for pointing out that I needed to disable mod_php:
sudo a2dismod php5
Using the "Alternatively, I've also tried" lines and restarting Apache results in: Server API: FPM/FastCGI.
@A-KO:
Caching. Why load dynamic modules when the content you are generating is staying static? This should vastly improve page load times and reduce i/o, memory, and CPU footprints. Yep, I'd love to implement additional caching, but I don't know which direction to turn to. Is there a specific implementation or guide that you can suggest?
Thank you for your help!
If you need a drop in apache replacement I recommend Litespeed
Otherwise ngnx or lighttpd are other good options.
@yaz:
Edit: Success! Thanks to heckman in IRC for pointing out that I needed to disable mod_php:
sudo a2dismod php5Using the "Alternatively, I've also tried" lines and restarting Apache results in: Server API: FPM/FastCGI.
Thank you for your help!
****Hi
Can you tell me how you disabled mod_php? I tried Googling and I found a website that explained how to do it, but when I tried their instructions, it did not work. I also noticed it is in a different language, so I may have to use someone's****
@empoweringmedia:
If you start getting any decent amount of traffic usually apache starts to fall apart.
Define "decent".
With a properly configured LAMP stack, Apache does ok.