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.


DiscussionStarted byRepliesLast post
Moodle 1.9 Very Slow When Creating New Courses 3 Ken Wilson
Multiple installations vs One installation 1 Michael Penney
Our Moodle Site Slow Over Internet 10 Jamie Robe
Tool to estimate server's maximum concurrent users 3 Visvanath Ratnaweera
memory_limit - server error 5 John Rodkey
porting Linux Moodle to Windows Moodle 10 Ken Wilson
New roll out for approx 250 concurrent users 4 Eric Novikoff
Many unauthenticated user, writing to net after using show processlist command 6 Tariq Adel Al Ammadi
Dual Dual Xeon's or Dual Quad Harpertowns 1 Sojiro Sato
Worried about the performance of our moodle server ! Continued... 2 Myles Carrick
Moodle and pgpool 7 Penny Leach
SCORM responsiveness - too slow. 2 Todd Thornton
OSX server performance issues 7 Marty Sharpe
Removing Old Records 0 Carl Keller
Error: Database connection failed 6 Rob Hudson
CSS often fails on IE6/7 (but not FF) 0 Shaun Daubney
site loading slowly and sometime I get database connection failed 30 Đặng Quang Hùng
hosting options 17 Gary Benner
Hardware Specs 5 Sumit Batra
Scaleablity of Moodle 14 Vipen Mahajan
High Availability Moodle 3 Valery Fremaux
SWF File loading is too slow 2 E. L. Cooper
Moodle Bloat. 6 Martin Dougiamas
Moving to Moodle - Looking For Advice on Server Setup 4 Simon Boddy
SUSE Linux with XEN and Moodle 4 Visvanath Ratnaweera
Performance of modle 1 Visvanath Ratnaweera
Vista testers needed please 3 Visvanath Ratnaweera
Worried about the performance of our moodle server ! 3 Steve Audus
Moodle hosting cost and time 7 Scott Karren
Scaling a Local Education Authority System? 4 Dan Poltawski
Multiple Moodle sites on a server cluster 4 Valery Fremaux
Slow Moodle in Virtual Environment 1 Jonathan Moore
Hardware & Software to run Moodle 5 Steve Hill
Cron.php really slow 0 Rob Hudson
'normal' and 'good' load times? 13 Lael ...
Moodle in the Cloud 1 Rene Folse
Mirroring moodle between two servers 5 Jonathan Moore
specing servers and DMZ 1 Visvanath Ratnaweera
Need specs for a Small Rollout. 4 Visvanath Ratnaweera
Damn Small Linux 4 Visvanath Ratnaweera
Testing Moodle capacity 6 Ixbalanque Millan
about the installation of moodle 3 Myles Carrick
Database Connection - beginner`s questions 4 Myles Carrick
Virtual client/server testing 1 Visvanath Ratnaweera
Planning new server hardware; and deciding between WAMP & LAMP 17 Visvanath Ratnaweera
Modify error:Database connection failed 2 Jacques Guiffo
WHM & server transfer of Moodle sites 0 jobe jobe
Live CD 11 Max De Mendizábal
How Moodle handles multiple users 1 Tim Hunt
1.9 - Statistics running all day 0 Mark Schumann
A Giant Query of 1.8 + 16 Dean Thayer
Moodle on a NAS ie DS207+ 2 Hans B.
Read-Only Moodle, tuning for speed? 0 David Scotson
Long load time for moodle on server 1 Myles Carrick
Connection timed out 1 Norbert Berger
MyISAM to InnoDB 20 Ken Wilson
Moodle site management tool 3 Dan Poltawski
RHEL 5 Server - Setup/Configuration Advice 8 Anthony Borrow
Moodle Hacked? 5 Matt Gibson
New Apple Hardware New Install 8 Dan Trockman
log # of concurrent users 2 Maik Riecken
Suggestion for Enterprise architecture for environment 3 Chris Potter
Performance Problem in Moodle 1.9 6 Matt Gibson
How to config Chat demon in a cluster? 0 Israel Forés
Server Host options for School District? 18 Dan Trockman
clone moodle installation 2 Visvanath Ratnaweera
Slowness, DB errors, and admin question 4 Samuli Karevaara
Quick quesion about enable performance info option in Server -> Debugging -> Performance info" 1 Iñaki Arenaza
Eaccelerator - Very high load - blank pages -URGENT 4 Amer Hamade
eAccelerator not being detected by Moodle? 5 Gary Anderson
apache crashing 11 Mark Hilliard
High RAM usage 11 Greg Hayden
Has anyone successfully implemented MDL-10995 accesslib.php patch in Moodle 182 ? 2 Richard Kiely
Synchronising 'moodledata' across load-balanced Moodle servers 4 Martin Dougiamas
MOODLE muito Lento na minha CPU. 1 Wilker Melo
1.8 or 1.9? MySQL or PostgreSQL? 11 Sergei Yegorov
any lighttpd experience 6 Howard Miller
Moodle running in virtual server environment? 5 Greg Hayden
Comments on planned server hardware 16 Alex DePena
Final Specification Help 2 Mark Hilliard
CRITICAL PROBLEM WITH MOODLE HOSTING!!!! 29 Steve Hyndman
Moodledata at differennt server 1 Samuli Karevaara
Is our bandwidth used when users view embedded items? 4 Steve Hyndman
Hosting Moodle on own computer 1 Greg Hayden
Optmize Database Automatically Using Cron jobs for Unix Users 3 Martín Langhoff
CSS not being found on external access 1 Paul Holden
Would moodledata on separate server work/help? 5 Ralph Patterson
Can you help me? 2 David Atzet
Can I put moodle into a CD and work it perfectly? 13 Tomas A. Ramirez Andujar
Still Can't Get Mysql Working Right After Upgrade 0 Hurstel Howard
Editing difficulties 0 David Dreyer
mysql seems to lock whole db 9 Matt Gibson
MySQL database (moodle) and SQL-user permitions, need help!! 0 Saso Skocir
Disk capacity for media rich system 5 Matt Gibson
Verifying cache_text 0 Shirley Villanes
php_extension mbstring is recommended to be installed/enabled 19 kiran solanki
Apache Memory Problem in EasyPHP 1.8 6 Mark Hilliard
Slow loading of only some lessons 7 JR Renna
Slow Moodle 8 Wayne Lee
New server - software spec 0 Mark Hilliard