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 2672 discussions
  Discussion Started by Replies Last post Created  
Error: Database connection failed
Picture of Chad Outten Chad Outten
6 Sat, Mar 1, 2008, 12:13 PM
CSS often fails on IE6/7 (but not FF)
Picture of Shaun Daubney Shaun Daubney
0 Tue, Jul 1, 2008, 8:29 PM
site loading slowly and sometime I get database connection failed
Picture of Mr. Shortcut Mr. Shortcut
30 Sat, May 5, 2007, 12:44 AM
hosting options
Picture of Jennifer Claro Jennifer Claro
17 Mon, Jun 16, 2008, 3:43 PM
Hardware Specs
Picture of Rahim Virani Rahim Virani
5 Fri, Jan 19, 2007, 9:36 AM
Scaleablity of Moodle
Picture of Theo Stone Theo Stone
14 Sun, Jan 25, 2004, 3:46 AM
High Availability Moodle
Picture of Howard Miller Howard Miller
3 Mon, Jun 2, 2008, 5:10 PM
SWF File loading is too slow
Picture of Abbas Shaikh Abbas Shaikh
2 Wed, Jun 4, 2008, 1:40 PM
Moodle Bloat.
Picture of Peter Vitez Peter Vitez
6 Mon, Jun 16, 2008, 3:52 PM
Moving to Moodle - Looking For Advice on Server Setup
Picture of Simon Boddy Simon Boddy
4 Tue, Jun 17, 2008, 8:55 PM
SUSE Linux with XEN and Moodle
Picture of dan Krajewski dan Krajewski
4 Wed, Jun 4, 2008, 12:49 AM
Performance of modle
Picture of Jader Menezes Jader Menezes
1 Fri, Jun 6, 2008, 11:34 PM
Vista testers needed please
Picture of Darrel Tenter Darrel Tenter
3 Wed, Jun 11, 2008, 11:45 PM
Worried about the performance of our moodle server !
Picture of Steve Audus Steve Audus
3 Sat, Jun 7, 2008, 5:12 AM
Moodle hosting cost and time
Picture of Scott Karren Scott Karren
7 Thu, May 22, 2008, 1:19 AM
Scaling a Local Education Authority System?
Picture of Edward Pryce Edward Pryce
4 Thu, May 22, 2008, 7:27 PM
Multiple Moodle sites on a server cluster
Picture of Manfred Deller Manfred Deller
4 Thu, May 15, 2008, 6:54 PM
Slow Moodle in Virtual Environment
Picture of Andrew Eickstead Andrew Eickstead
1 Fri, May 16, 2008, 4:03 AM
Hardware & Software to run Moodle
Picture of Steve Hill Steve Hill
5 Tue, May 13, 2008, 8:36 PM
Cron.php really slow
Picture of Rob Hudson Rob Hudson
0 Wed, May 14, 2008, 8:10 PM
'normal' and 'good' load times?
Picture of Lael ... Lael ...
13 Thu, Apr 24, 2008, 7:18 PM
Moodle in the Cloud
Picture of Wilfred Wright Wilfred Wright
1 Fri, Apr 11, 2008, 10:07 PM
Mirroring moodle between two servers
Picture of Phil Hopfner Phil Hopfner
5 Wed, May 7, 2008, 11:54 AM
specing servers and DMZ
Picture of Matthew Hargraves Matthew Hargraves
1 Thu, May 1, 2008, 10:28 PM
Need specs for a Small Rollout.
Picture of Greg Ashauer Greg Ashauer
4 Fri, Apr 25, 2008, 5:19 AM
Damn Small Linux
Picture of M Y M Y
4 Sun, Feb 5, 2006, 11:41 PM
Testing Moodle capacity
Picture of Rey Ong Rey Ong
6 Fri, Apr 25, 2008, 9:51 AM
about the installation of moodle
Picture of vlodia cannon vlodia cannon
3 Sun, Nov 4, 2007, 2:20 AM
Database Connection - beginner`s questions
Picture of Márcio Vilaça Márcio Vilaça
4 Fri, May 2, 2008, 9:39 PM
Virtual client/server testing
Picture of M Adeel M Adeel
1 Thu, Apr 24, 2008, 11:44 PM
Planning new server hardware; and deciding between WAMP & LAMP
Picture of Bob Majors Bob Majors
17 Tue, Jan 15, 2008, 7:52 AM
Modify error:Database connection failed
Picture of Jacques Guiffo Jacques Guiffo
2 Tue, Apr 29, 2008, 3:08 PM
WHM & server transfer of Moodle sites
Picture of jobe jobe jobe jobe
0 Tue, Apr 22, 2008, 3:27 PM
Live CD
Picture of Miles Berry Miles Berry
11 Mon, Aug 1, 2005, 3:16 PM
How Moodle handles multiple users
Picture of Tristan Deane Tristan Deane
1 Thu, Apr 17, 2008, 11:37 PM
1.9 - Statistics running all day
Picture of Mark Schumann Mark Schumann
0 Tue, Apr 15, 2008, 8:36 AM
A Giant Query of 1.8 +
Picture of Jai Gupta Jai Gupta
16 Mon, Jun 11, 2007, 7:28 PM
Moodle on a NAS ie DS207+
Picture of Hans B0s Hans B0s
2 Sun, Apr 13, 2008, 3:37 AM
Read-Only Moodle, tuning for speed?
Picture of David Scotson David Scotson
0 Tue, Apr 8, 2008, 10:05 PM
Long load time for moodle on server
Picture of Omer Simanovsky Omer Simanovsky
1 Mon, Apr 7, 2008, 1:03 PM
Connection timed out
Picture of tony deprato tony deprato
1 Sat, Apr 5, 2008, 3:04 PM
MyISAM to InnoDB
Picture of Martin Dougiamas Martin Dougiamas
20 Thu, Sep 23, 2004, 8:56 PM
Moodle site management tool
Picture of Simon Britton Simon Britton
3 Wed, Mar 26, 2008, 2:47 AM
RHEL 5 Server - Setup/Configuration Advice
Picture of Anthony Borrow Anthony Borrow
8 Mon, Jan 14, 2008, 4:37 AM
Moodle Hacked?
Picture of Lance Hinds Lance Hinds
5 Tue, Mar 18, 2008, 8:22 PM
New Apple Hardware New Install
Picture of Karl Kaemingk Karl Kaemingk
8 Fri, Feb 1, 2008, 3:32 AM
log # of concurrent users
Picture of Andrew O'Brien Andrew O'Brien
2 Thu, Mar 13, 2008, 10:13 AM
Suggestion for Enterprise architecture for environment
Picture of HJWUCGA INC. HJWUCGA INC.
3 Sun, Mar 2, 2008, 6:26 AM
Performance Problem in Moodle 1.9
Picture of Haris Siempos Haris Siempos
6 Tue, Feb 26, 2008, 4:07 AM
How to config Chat demon in a cluster?
Picture of Israel Forés Israel Forés
0 Mon, Mar 3, 2008, 7:41 PM
Server Host options for School District?
Picture of Melissa Benson Melissa Benson
18 Sat, Feb 2, 2008, 1:53 AM
clone moodle installation
Picture of Ruban Jayathas Ruban Jayathas
2 Tue, Feb 26, 2008, 12:49 AM
Slowness, DB errors, and admin question
Picture of Jon Skulski Jon Skulski
4 Wed, Feb 27, 2008, 5:13 AM
Quick quesion about enable performance info option in Server -> Debugging -> Performance info"
Picture of Wen Hao Chuang Wen Hao Chuang
1 Sat, Feb 23, 2008, 9:29 AM
Eaccelerator - Very high load - blank pages -URGENT
Picture of Amer Hamade Amer Hamade
4 Wed, Feb 20, 2008, 6:24 PM
eAccelerator not being detected by Moodle?
Picture of Charlie Owen Charlie Owen
5 Mon, Dec 10, 2007, 5:28 PM
apache crashing
Picture of vivin v vivin v
11 Wed, Feb 6, 2008, 8:15 PM
High RAM usage
Picture of Kyle Brown Kyle Brown
11 Thu, Feb 14, 2008, 4:55 AM
Has anyone successfully implemented MDL-10995 accesslib.php patch in Moodle 182 ?
Picture of Richard Kiely Richard Kiely
2 Fri, Feb 15, 2008, 2:26 AM
Synchronising 'moodledata' across load-balanced Moodle servers
Picture of Adrian Barker Adrian Barker
4 Mon, Dec 17, 2007, 11:02 PM
MOODLE muito Lento na minha CPU.
Picture of Bruno Santos Bruno Santos
1 Wed, Feb 13, 2008, 2:22 AM
1.8 or 1.9? MySQL or PostgreSQL?
Picture of Sergei Yegorov Sergei Yegorov
11 Thu, Feb 7, 2008, 8:53 PM
any lighttpd experience
Picture of Howard Miller Howard Miller
6 Wed, Feb 13, 2008, 6:23 PM
Moodle running in virtual server environment?
Picture of Steve Reed Steve Reed
5 Sat, Feb 9, 2008, 7:01 AM
Comments on planned server hardware
Picture of Jerico Tolentino Jerico Tolentino
16 Fri, Jan 25, 2008, 5:15 PM
Final Specification Help
Picture of Karl Kaemingk Karl Kaemingk
2 Tue, Feb 5, 2008, 4:46 AM
CRITICAL PROBLEM WITH MOODLE HOSTING!!!!
Picture of Carlos Morales Socorro Carlos Morales Socorro
29 Fri, Nov 30, 2007, 3:28 AM
Moodledata at differennt server
Picture of Mokrim Hassan Mokrim Hassan
1 Thu, Jan 31, 2008, 4:28 PM
Is our bandwidth used when users view embedded items?
Picture of Patrick G Patrick G
4 Wed, Jan 30, 2008, 4:40 AM
Hosting Moodle on own computer
Picture of Fred Frazelle Fred Frazelle
1 Tue, Jan 29, 2008, 2:59 PM
Optmize Database Automatically Using Cron jobs for Unix Users
Picture of D3SI Boy D3SI Boy
3 Mon, Jan 28, 2008, 8:17 PM
CSS not being found on external access
Picture of Steve Blakemore Steve Blakemore
1 Wed, Jan 9, 2008, 10:25 PM
Would moodledata on separate server work/help?
Picture of Adam Johnston Adam Johnston
5 Fri, Jul 22, 2005, 9:24 AM
Can you help me?
Picture of David Atzet David Atzet
2 Tue, Jan 8, 2008, 6:17 AM
Can I put moodle into a CD and work it perfectly?
Picture of Asier Suarez Asier Suarez
13 Wed, Apr 5, 2006, 3:14 PM
Still Can't Get Mysql Working Right After Upgrade
Picture of Hurstel Howard Hurstel Howard
0 Wed, Jan 9, 2008, 8:30 AM
Editing difficulties
Picture of David Dreyer David Dreyer
0 Tue, Jan 1, 2008, 4:04 AM
mysql seems to lock whole db
Picture of Matt Gibson Matt Gibson
9 Wed, Nov 28, 2007, 10:07 PM
MySQL database (moodle) and SQL-user permitions, need help!!
Picture of Saso Skocir Saso Skocir
0 Thu, Dec 20, 2007, 7:48 AM
Disk capacity for media rich system
Picture of John Williams John Williams
5 Mon, Dec 10, 2007, 11:41 PM
Verifying cache_text
Picture of Shirley Villanes Shirley Villanes
0 Tue, Dec 18, 2007, 9:51 AM
php_extension mbstring is recommended to be installed/enabled
Picture of Simon Scholey Simon Scholey
19 Fri, Feb 17, 2006, 7:43 AM
Apache Memory Problem in EasyPHP 1.8
Picture of Vassilis Nikolopoulos Vassilis Nikolopoulos
6 Mon, Dec 10, 2007, 8:08 AM
Slow loading of only some lessons
Picture of Dave Cuttriss Dave Cuttriss
7 Wed, Aug 29, 2007, 11:17 PM
Slow Moodle
Picture of Wayne Lee Wayne Lee
8 Thu, Dec 6, 2007, 8:10 PM
New server - software spec
Picture of Hugh Morrow Hugh Morrow
5 Thu, Dec 6, 2007, 11:24 AM
RAID 10 or RAID 5?
Picture of Matt Gibson Matt Gibson
2 Wed, Dec 5, 2007, 6:59 PM
Moodle sudden freeze on IE 6.0 and 7.0
Picture of Vassilis Nikolopoulos Vassilis Nikolopoulos
2 Fri, Nov 30, 2007, 8:15 AM
Win 2k3/IIS6 - CPU Spike
Picture of Todd Bryant Todd Bryant
2 Wed, Dec 5, 2007, 3:50 AM
Moodle Loads Too Long
Picture of Clarence Carino Clarence Carino
9 Sat, Oct 27, 2007, 8:47 PM
HTTP Regression Tester
Picture of Jordan Zebor Jordan Zebor
1 Sat, Aug 18, 2007, 6:04 AM
How to limit CPU usage on server?
Picture of Steven Day Steven Day
9 Fri, Nov 12, 2004, 4:14 PM
Index on user.username
Picture of Peter Brunswick Peter Brunswick
1 Thu, Nov 22, 2007, 1:27 AM
Celeron D Server
Picture of Ruban Jayathas Ruban Jayathas
1 Thu, Nov 29, 2007, 2:33 PM
Apache tuning for Moodle
Picture of Howard Miller Howard Miller
4 Wed, Nov 21, 2007, 4:18 PM
Setup New Moodle Server
Picture of Sean Li Sean Li
1 Thu, Aug 30, 2007, 10:50 PM
Server Requirement to serve 25,000 users
Picture of Alvyn Lim Alvyn Lim
3 Wed, Nov 21, 2007, 10:39 AM
If you have trouble with performance...
Picture of Maik Riecken Maik Riecken
0 Sun, Nov 18, 2007, 3:41 AM
Uploading PowerPoint documents
Picture of Bridget Derham Bridget Derham
1 Wed, Nov 14, 2007, 9:53 PM
Moodle/MYSQL Performance...
Picture of Jeffrey Peninger Jeffrey Peninger
1 Tue, Nov 6, 2007, 9:16 PM