This document discusses improving Drupal performance. It covers optimizing caching at the database, PHP, and web server levels. Specific techniques mentioned include using memcache, APC, query caching, optimizing modules, aggregate CSS/JS, load balancing, and profiling with Devel. Examples are given of performance improvements made for websites with millions of users through strategies like removing redundant code and blocks. The conclusion emphasizes the importance of analysis, contribution to the community, training, and knowledge sharing for continual performance enhancements.

1. DrupalCamps 2012
Drupal
it all comes down to performance
Janis Janovskis
@PASSIVUS
http://passivemanagement.net

2. Drupal
it all comes down to performance
?

3. Drupal
it all comes down to performance
WHY?
WHERE?
HOW?
:)

4. Drupal
it all comes down to performance
Database level – wt … is cache?
✔ cache_block
✔ cache_bootstrap
✔ cache_field
✔ cache_form
✔ cache_.....

5. Drupal
it all comes down to performance
Database → cache_your_???();
✔ cache_set
✔ cache_get
✔ ctools_include('object-cache');
✔ ctools_object_cache_set('my_module', $id,
$object);
✔ ctools_include('object-cache');
✔ ctools_object_cache_clear('my_module', $id);

6. Drupal
it all comes down to performance
Database → caching();
✔ Query caching – query_cache_type=1
✔ table caching – memcache
✔ noSQL
➔ MongoDB
➔ CouchDB
➔ Reddis
➔ ….

7. Drupal
it all comes down to performance
PHP
✔ APC
✔ XCACHE
✔ Remove redundant modules(code)
✔ Profiling (Xhprof)

8. Drupal
it all comes down to performance
PHP - Modules
✔ entity_cache
✔ boost (best on shared environments)
✔ block_cache_alter
✔ memcache api integration
✔ apc integration
✔ elysia cron (better cron job management)
✔ ajax blocks

9. Drupal
it all comes down to performance
Filesystem - backend
✔ File size limitations (file field configuration
✔ aggregate css
✔ aggregate js
✔ remove redundant css/js
✔ cdn

10. Drupal
it all comes down to performance
Files –> front end();
✔ Build in css/js architecture (“clearfix”)
✔ Built in js framework (jQuery, + jQuery UI(D7
✔ Image preloads
ADMIN CONTENT
MODULE
THEME THEME

11. Drupal
it all comes down to performance
Performance → Web servers();
✔ Load balancing
✔ Apache mod_proxy
✔ Ningx vs Apache
✔ Varnish proxy caching

12. Drupal
it all comes down to performance
TESTING YOUR BUILT
✔ DrupalWebTestCase
✔ devel module → query information
✔ views statistics
✔ performance tests(jmeter)

13. Drupal
it all comes down to performance
www.bounty.com
✔ ~1.5 milj. users
✔ Affiliate marketing solutions
✔ Embed community
✔ “Crapped” (not fresh) backend
✔ Almost no documentation
✔ Offline db integration

15. Drupal
it all comes down to performance
Architecture
APACHE1 MEMCACHE1
LOAD
BALANCER FILE SERVER MYSQL
MYSQL
MYSQL
MYSQL
APACHE2 MEMCACHE1

16. Drupal
it all comes down to performance
Bounty → Improvements();
✔ No panels
✔ Block instances
✔ By, by boot :)
✔ Education – tutoring
✔ Micro-sites
✔ Code improvements(Documentation)
✔ Removing redundancies (profile module)

18. Drupal
it all comes down to performance
www.savethechildren.org.uk
✔ 25 editors
✔ UI friendly configuration
➔ Panels
➔ Context
➔ Views
➔ Pages

19. Drupal
it all comes down to performance
Architecture
varnish1 apache1 memcache1
MYSQL
LOAD files
BALANCER MYSQL
MYSQL
varnish1 apache2 memcache2

20. Drupal
it all comes down to performance
Save the Children → improvements();
✔ Memcache
✔ Profiling with xhprof, devel
✔ Contributing to community
✔ Education
✔ … I am still on this role …..

21. Drupal
it all comes down to performance
Improvements → personal();
✔ Analysing
✔ Contributing
✔ Training
✔ Sharing

22. Drupal
it all comes down to performance
Thanks
http://passivemanagement.net
janis.janovskis@passivemanagement.net
@PASSIVUS