Presentation of Yannick Warnier in the Chamilo Users Day in Madrid 2013 where he explains how to optimize the configuration of Chamilo LMS to prepare this LMS for a Massive Open Online Course.

2. Chamilo LMS &
MOOC-specific optimizations
by Yannick Warnier
President
Chamilo Association
Chamiluda Madrid 2013

3. The Chamilo project

4. Community
6,700,000 users
Empleo
Educational
platform
+300 personas
alrededor del mundo
Association
Partners
Trademark, R&D, events
4 companies / 2 universities
Software (libre)
Adaptable / without license costs

5. MOOC

6. Massively
Open
Online
Course

7. Required attributes
* easy to use
* not many pages to get to the content
* auto-evaluation
* participation with others

8. Suggested attributes
* optimized
* secure (HTTPS: 10-20% extra load)
* measured

9. How massive could it be?

10. Chamilo Free Campus

11. Chamilo Free Campus
260,000 users
15,000 courses
177 countries in 2013

12. Chamilo Free Campus
260,000 users REGISTERED
700 simultaneous users top
Different courses
Not MOOC

13. Community
From the evolution, it is bound to happen to us...
Chamilo (4y)
Dokeos (9y)

14. Some real cases...
●
●
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University San Ignacio de Loyola, Peru
● 3,500 simultaneous users → OK for MOOC
Instituto Cultural Peruano – Norte Americano
● 612,000 users registered → not really MOOC
Académie d'Aix-Marseilles, France
● 230 schools, differt portals→not really MOOC
Ministry of Education – National exam – Peru
● 9500 users taking an exam at the same time
● Not really MOOC (but technically MOOC)

15. The MOOC's issues
●
High number of simultaneous students in course
Requires:
●
Ease of use (no need for support)
●
Automated processes (no need for coaching)
●
High efficiency (no need for extraordinary hardware)

16. Ease of use
●
Chamilo LMS excels in
●
Fewer steps to get to content
●
Registering to platform → registering to course
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Automated redirection to course
●
Hide unused tools
●
Courses' introduction
●
Introduction per tool
●
Guided learning paths

17. Automated processes (1)
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Learning paths w/ prerequisites
●
●
Drives students in established path
Exams (without free answer)
●
●
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Automated evaluation
Immediate feedback
Surveys

18. Automated processes (2)
●
Gradebook
●
Build learning objects
●
Certificates
●
Programmed announcements
●
Prepared links of interest
●
Course agenda

19. Other advantages of Chamilo
●
Documents tools
●
Courses description
●
Customizable presentation
●
Light/Fast
●
Boostable

20. Efficiency & boosts
●
14MB per loaded page (average)
●
Reduce media sizes (png, jpg, videos)
●
Zip transfers (zlib)
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Use APC or Zend OpCode
●
●
Much more efficient with very high # of users
Remove “online users” option
●
Or use optimization.html to put it in cache
●
Optimize SQL queries (or remove them)
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Use fixed values (PHP)

21. More efficiency boosts
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●
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Remove code for documents total size
Use your/one language as default (hack into
end of global.inc.php)
7KB weight (300KB first load → Expires,
Headers)
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Header unset Set-Cookie
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ExpiresByType image/jpg "access plus 1 day"
Header set Cache-Control "max-age=86400"
MySQL indexes and/or tables in memory

22. Chamilo LMS ideal for MOOCs
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1500 simultaneous users, with little optimization
●
4GB RAM
●
3 cores (3GHz)

23. Contact
Yannick Warnier
President – Chamilo Association
Manager - BeezNest
@ywarnier
@chamilonoticias
Contacto: info@chamilo.org