Hardware and performance

Issues related to computer hardware and Moodle's performance under load.

Documentation: Performance and Performance FAQ
Forum moderator: Howard Miller

Read this first!

This forum is for discussing issues related to computer hardware for Moodle, as well as comparing notes on Moodle's performance under load. Advice on finding an internet hosting service also belongs here.

Before posting your question here please read the documentation Performance and and Performance FAQ.

Many of the questions have already been answered. Please make use of the Advanced forum search and the Google custom search to find them.

If your questions still remain unanswered, post them here. Include as much background information as possible about your hardware - operating system, web server, database server, PHP scripting framework, etc. If your machine is virtualized, also mention the host hardware, operating system, virtualization technology used and resources assigned to the virtual machine. If you use a hosting service, mention either the hosting provider and the package or resources as advertised.

For general advice on how to ask questions, refer to the Moodle.org forums help. Also please observe our site policy.

Best wishes,
your moderator Howard.

Showing 100 of 2652 discussions
  Discussion Started by Replies Last post Created  
Survey for Moodle system administrators
Picture of Visvanath Ratnaweera Visvanath Ratnaweera
0 Sat, Jan 21, 2012, 4:18 PM
How to monitor Windows-based servers?
Picture of Azhar Ghani Azhar Ghani
1 Sat, Jan 14, 2012, 3:31 PM
Student System Requirements
Picture of Clare Marsh Clare Marsh
3 Sat, Jan 14, 2012, 12:12 AM
Time out for grade export to excel
Picture of Bas Brands Bas Brands
1 Tue, Jan 10, 2012, 11:19 PM
Scalability
Picture of Anthony McKenna Anthony McKenna
10 Tue, Nov 15, 2011, 2:52 AM
Moodle 2.0 - Mysterious Speed-up?
Picture of Thom Stricklin Thom Stricklin
3 Wed, Jan 11, 2012, 2:49 AM
moodle system going down/getting stuck very often
Picture of thulasi raman thulasi raman
5 Tue, Dec 13, 2011, 2:26 PM
Moodle causing memory problems and crashing server
Picture of Leon Philpot Leon Philpot
6 Wed, Jan 4, 2012, 5:22 AM
Update on PHP-accelerators
Picture of Visvanath Ratnaweera Visvanath Ratnaweera
6 Wed, Feb 16, 2011, 8:02 PM
Server Timeout??
Picture of Dustin Peet Dustin Peet
1 Sat, Dec 17, 2011, 3:46 AM
Is there a limit on the number of activities in a course? (Is 600 too many?)
Picture of Peter Ruthven-Stuart Peter Ruthven-Stuart
2 Mon, Dec 12, 2011, 11:44 AM
Slow queries when showing results
Picture of Tarjei Huse Tarjei Huse
2 Mon, Apr 12, 2010, 9:03 PM
Problems with server
Picture of J S H J S H
4 Tue, Nov 29, 2011, 4:07 AM
Migrating 10000 students from Blackboard to Moodle?
Picture of Frederik Questier Frederik Questier
26 Mon, Jun 16, 2003, 5:25 PM
Number of concurrent users supported
Picture of Ani Shrotri Ani Shrotri
6 Tue, Nov 29, 2011, 5:50 PM
performances on average web hosting
Picture of fabrizio montanari fabrizio montanari
4 Mon, Nov 21, 2011, 11:39 PM
PHP-APC
Picture of Josu Lazkano Josu Lazkano
5 Wed, Nov 16, 2011, 7:50 PM
Apache2 Memory Usage
Picture of Emma Richardson Emma Richardson
10 Fri, Oct 28, 2011, 3:22 AM
Performance slow in moodle 1.9
Picture of dhileep s dhileep s
3 Tue, Nov 15, 2011, 2:05 PM
MoodleDoc about Apache recommended settings up-to-date ?
Picture of Philippe Siwinski Philippe Siwinski
4 Sat, Nov 5, 2011, 12:14 PM
Any possibility of SCORM data loss on peak usage?
Picture of Natarajan M Natarajan M
7 Mon, Oct 31, 2011, 5:39 PM
PHP accelerator
Picture of Josu Lazkano Josu Lazkano
3 Thu, Nov 10, 2011, 3:30 PM
Moodle 2.1.1 is CRASHING my server
Picture of Matt Morris Matt Morris
5 Sat, Sep 10, 2011, 10:50 PM
Slow Moodle Performance with Upgrades to 2.1.1
Picture of Tadge O'Brien Tadge O'Brien
9 Tue, Oct 18, 2011, 8:52 PM
Moodle 2.03 Load Time
Picture of David Macara David Macara
1 Thu, Oct 27, 2011, 8:54 AM
New installation: 40000 users
Picture of chandrika harathi chandrika harathi
9 Thu, Sep 29, 2011, 10:16 PM
UK Based VPS Recommendations
Picture of Phil Nichols Phil Nichols
0 Wed, Oct 19, 2011, 4:41 PM
Web server Performance
Picture of Mudasir Irfan Ali Kharal Mudasir Irfan Ali Kharal
2 Tue, Oct 18, 2011, 2:06 PM
Two servers for one moodle installation
Picture of Stefan Raffeiner Stefan Raffeiner
2 Tue, Aug 23, 2011, 10:10 PM
Req: Advice on Regional Moodle Content Providers?
Picture of Greg Taylor Greg Taylor
2 Sat, Oct 15, 2011, 3:39 AM
Comparing one server for all versus two server instalation
Picture of Ângelo Rigo Ângelo Rigo
2 Fri, Oct 14, 2011, 5:12 AM
HUGE number of users
Picture of Smith Man Smith Man
2 Thu, Oct 13, 2011, 5:34 PM
Template losing structure
Picture of Arnold Chiringa Arnold Chiringa
3 Sat, Oct 8, 2011, 10:55 PM
Moodle going through a Echolife router
Picture of Rodrigo Hernandez Rodrigo Hernandez
1 Fri, Oct 7, 2011, 7:31 AM
Recommended hardware to Moodle
Picture of Jenő Duchon Jenő Duchon
6 Wed, Oct 5, 2011, 7:10 PM
Advice sought regarding Moodle configuration and performance issues
Picture of Graeme Boxwell Graeme Boxwell
2 Mon, Sep 12, 2011, 3:27 PM
perfparse.pl updated to support Moodle 2.x
Picture of Dan Poltawski Dan Poltawski
0 Fri, Sep 30, 2011, 9:46 PM
Quick Question: cURL Cache
Picture of Jason Cameron Jason Cameron
0 Tue, Sep 27, 2011, 10:35 PM
2.1.1 /MySq - Database problem
Picture of Vernellia Randall Vernellia Randall
2 Tue, Sep 27, 2011, 7:23 AM
Is this server sufficient?
Picture of Andrew Scanlon Andrew Scanlon
2 Thu, Sep 22, 2011, 10:57 PM
Advice requested for running Moodle 1.6 w MySQL Cluster
Picture of kevin metcalf kevin metcalf
7 Fri, Apr 25, 2008, 8:38 AM
Windows server problems
Picture of Mark Smith Mark Smith
6 Wed, Sep 21, 2011, 11:58 PM
Performance tuning Moodle on Windows/IIS with Output Caching
Picture of Luis de Vasconcelos Luis de Vasconcelos
0 Thu, Sep 22, 2011, 11:42 PM
Remote and local access
Picture of Nick Garrod Nick Garrod
3 Sat, Sep 10, 2011, 6:32 PM
How to avoid DB overload?
Picture of David Dunn David Dunn
1 Sat, Sep 17, 2011, 5:05 AM
How many concurrent users can moodle handle without compromising on performance?
Picture of Gaurav Kumar Gaurav Kumar
2 Fri, Sep 16, 2011, 3:14 AM
Hardware requirement for moodle
Picture of Azmat Ullah Azmat Ullah
0 Thu, Sep 15, 2011, 7:10 PM
Moodle 2.1.1 Updated Courses
Picture of Jim Cook Jim Cook
2 Thu, Sep 15, 2011, 3:46 AM
Database size / performance - Moodle 2.0.2
Picture of Class Virtual Class Virtual
0 Wed, Sep 14, 2011, 10:52 PM
Taking the VM Moodle online - how?
Picture of Guido Gautsch Guido Gautsch
2 Tue, Sep 13, 2011, 9:57 PM
Moodle 2.1+ Server Requirement?
Picture of Ya Borin Ya Borin
1 Tue, Sep 13, 2011, 10:17 AM
150 DB queries per lesson page - normal?
Picture of Michael Cohn Michael Cohn
1 Mon, Sep 12, 2011, 4:07 PM
Moodle new install slow - FIXED - useful - help?
Picture of jan Brogger jan Brogger
3 Fri, Jan 25, 2008, 5:44 PM
I want to run moodle for 150 people...
Picture of hadyn ranson hadyn ranson
2 Sat, Sep 3, 2011, 1:13 AM
Moodle performance testing: 1.9 vs. 2.0
Picture of Ruslan Kabalin Ruslan Kabalin
25 Wed, Nov 10, 2010, 11:27 PM
Slow Response – Download / Upload
Picture of Mark Hardwick Mark Hardwick
6 Mon, Aug 29, 2011, 2:02 AM
how to add the theme of moodle 2.0+ to moodle 2.1+
Picture of yin bai yin bai
2 Sun, Aug 28, 2011, 2:37 PM
moodle 2.0.3 linux cluster
Picture of marco polo marco polo
3 Mon, Aug 29, 2011, 3:54 PM
php-speedy - any use in a LAMP environment and Moodle?
Picture of Frankie Kam Frankie Kam
1 Sun, Aug 28, 2011, 12:29 AM
Requerimientos Hardware
Picture of Luis Guachamín Luis Guachamín
1 Tue, Aug 23, 2011, 10:02 PM
Moodle 2 pluginfile.php performance
Picture of Ben Graham Ben Graham
16 Wed, Aug 24, 2011, 11:22 PM
Software compliance with AD 2008/ Exchange 2010
Picture of Al Bay Al Bay
1 Thu, Aug 25, 2011, 11:32 PM
Server tweaks
Picture of Richard Cackett Richard Cackett
6 Fri, Jun 24, 2011, 5:21 PM
How many users can access to this server?
Picture of baris yuce baris yuce
1 Wed, Aug 17, 2011, 8:20 PM
Storage Space
Picture of Robin Hopz Robin Hopz
1 Fri, Aug 19, 2011, 7:08 AM
Hosting for Moodle 1.9.x, 100 - 3000 users: Advice on specification and pricing
Picture of Simon S Simon S
4 Sun, Aug 14, 2011, 4:14 AM
Move database to new server (?SAN?)
Picture of steve farrow steve farrow
0 Fri, Aug 12, 2011, 5:01 PM
File Size in the Moodle Web Server
Picture of Brian zhang Brian zhang
1 Thu, Aug 11, 2011, 6:07 PM
Hostgator vs Siteground vs Keytomoodle, Any opinion?
Picture of Jack Qadan Jack Qadan
3 Mon, Jun 13, 2011, 10:33 PM
Moodle on Amazon cloud ELB
Picture of Paul Walsh Paul Walsh
2 Wed, Aug 10, 2011, 1:04 AM
Creating a list of meaningful metrics to observe performance
Picture of Jerry McAllister Jerry McAllister
3 Fri, Aug 5, 2011, 4:12 AM
Problem Submitting Quiz
Picture of azam db azam db
1 Tue, Jul 26, 2011, 4:49 PM
"file picker" problem and no pics
Picture of abs tr4kt abs tr4kt
2 Fri, Aug 5, 2011, 5:01 AM
Performance testing for framework cost only
Picture of David Ackerman David Ackerman
3 Fri, Jul 29, 2011, 6:41 AM
Assignment Submissions Slow Down
Picture of Anthony Borrow Anthony Borrow
6 Fri, Apr 7, 2006, 1:06 AM
Problem with Module Auth is not readable, check ...
Picture of marcos2 silva2 marcos2 silva2
0 Wed, Jul 27, 2011, 7:40 AM
Nginx (fronteend) + Apache2 (backend) + Moodle
Picture of Ricardo Caiado Ricardo Caiado
16 Fri, Aug 27, 2010, 10:05 PM
many users can not login at the same time
Picture of sara mdht sara mdht
2 Mon, Jul 18, 2011, 5:54 PM
VPS Hosting for Moodle 1.9.x: Specification and Pricing Help
Picture of Mehzeb Chowdhury Mehzeb Chowdhury
3 Wed, Jun 29, 2011, 4:23 AM
How many moodle installs on single server?
Picture of Marius S Marius S
1 Sat, Jul 9, 2011, 9:02 PM
Upload to Moodle
Picture of Sinziana Oncioiu Sinziana Oncioiu
1 Tue, Jun 28, 2011, 11:03 PM
Hosting Issues
Picture of Laura Crane Laura Crane
3 Sat, Jun 25, 2011, 7:42 PM
mysql gradebook performance poor
Picture of John McNamara John McNamara
3 Mon, Jun 20, 2011, 9:10 PM
Teaching via satellite with Moodle and Moodle video server
Picture of Gianfranco Picozzi Gianfranco Picozzi
0 Mon, Jun 20, 2011, 5:32 PM
Reducing size of MySQL ibdata1 file
Picture of John Wells John Wells
1 Fri, Jun 17, 2011, 2:40 PM
Missing File Extensions
Picture of Bryan Smith Bryan Smith
3 Mon, Sep 13, 2010, 9:04 PM
php register long arrays
Picture of Heather P Heather P
0 Mon, Jun 13, 2011, 4:57 PM
Using Virtual Machine for Performance Testing Moodle
Picture of Poornima Muthuraj Poornima Muthuraj
3 Tue, May 31, 2011, 3:13 PM
Adding new Moodle Server with load balancing
Picture of Meganathan Ramasamy Meganathan Ramasamy
1 Tue, May 31, 2011, 3:56 AM
Need recommendations for my.cnf configuration to support >=500 simultaneous Moodle accesses
Picture of Pranata Ari Pranata Ari
8 Mon, May 23, 2011, 3:00 PM
Memory error
Picture of dhileep s dhileep s
1 Wed, May 18, 2011, 12:12 PM
APC PHP Accelerator in Moodle 1.9
Picture of Norman Drescher Norman Drescher
1 Mon, May 23, 2011, 5:27 PM
Moodle Scalability Challenge (WISP setup)
Picture of Lee Mears Lee Mears
14 Sat, May 16, 2009, 11:06 PM
Two Moodle Web Servers... HELP!
Picture of Kris Turner Kris Turner
20 Sat, Sep 18, 2010, 4:43 AM
Response time issues - strace analysis help needed
Picture of Chris Martel Chris Martel
7 Wed, Apr 6, 2011, 10:22 PM
Receive automatic phone call when site is not available
Picture of Micky Fokken Micky Fokken
1 Tue, May 17, 2011, 1:05 AM
Buying an in-house server
Picture of Ben Archer Ben Archer
5 Thu, May 12, 2011, 7:08 AM
Installation of Language Lab on Moodle
Picture of CL Winans CL Winans
0 Sat, May 14, 2011, 1:53 AM
Moodle logs to determine concurrent users
Picture of Lev Abramov Lev Abramov
2 Fri, May 13, 2011, 3:28 AM
moodle on two different severs
Picture of james aco james aco
1 Thu, May 12, 2011, 4:36 PM