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  
Preferred method of converting MyISAM to InnoDB
Picture of HJWUCGA INC. HJWUCGA INC.
26 Thu, Sep 17, 2009, 1:12 AM
PHP Sticky Session Clustering
Picture of Ali Ghorbani Moghadam Ali Ghorbani Moghadam
11 Thu, Aug 26, 2010, 9:05 AM
InnoDB cash hit ratio, Moodle 1.9.3 Server hangs
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1 Fri, Nov 5, 2010, 10:41 PM
Some basic info needed for using Moodle
Picture of David Friedberg David Friedberg
2 Fri, Oct 29, 2010, 9:58 PM
Stats affecting server
Picture of Dave Cuttriss Dave Cuttriss
2 Mon, Oct 25, 2010, 10:51 PM
php quiz module deduplication for lower memory bandwidth
Picture of James Salsman James Salsman
11 Tue, Sep 21, 2010, 7:52 PM
Hardware requirements for 12000+ user moodle site
Picture of Nathsahib Narale Nathsahib Narale
4 Thu, Oct 28, 2010, 1:56 PM
basic questions about hosting and choose the company
Picture of alain madec alain madec
5 Mon, May 26, 2008, 9:38 AM
Rule of thumb for sizing Moodle servers
Picture of Gary Weinstein Gary Weinstein
8 Fri, Jan 25, 2008, 4:37 PM
Quizzes : performance on exams period, randomizing questions
Picture of Anthony James Anthony James
13 Thu, Oct 21, 2010, 12:19 AM
bitnami stack moodle on laptop i.p. occupied
Picture of ben reynolds ben reynolds
5 Sat, Oct 9, 2010, 10:41 PM
moodledata on separate server?
Picture of Susan Mangan Susan Mangan
4 Sat, Oct 16, 2010, 1:34 AM
Can you help me with a hardware reccomendation
Picture of Brad Hess Brad Hess
1 Thu, Oct 14, 2010, 9:19 PM
Adding extra hard drive memory & does Moodle automatically detect it?
Picture of Eric Hagley Eric Hagley
1 Fri, Oct 8, 2010, 1:21 PM
Performance problem in deploying Moodle using LAN based server
Picture of Mehwish Leghari Mehwish Leghari
7 Wed, Oct 6, 2010, 5:43 PM
Server Alert
Picture of Jon Fila Jon Fila
0 Thu, Oct 7, 2010, 10:11 PM
moodle on godaddy hosting - very slow, errors
Picture of marc helfano marc helfano
5 Fri, Sep 17, 2010, 2:42 AM
Moodle.org platform
Picture of Bob Puffer Bob Puffer
7 Tue, Oct 5, 2010, 5:26 AM
Deployment Question
Picture of Suzanne Bogovich Suzanne Bogovich
3 Tue, Oct 5, 2010, 3:22 AM
moodle is crawling
Picture of chandrika harathi chandrika harathi
2 Mon, Sep 27, 2010, 11:21 PM
Shopping for a new server
Picture of Eric Hagley Eric Hagley
14 Tue, May 20, 2008, 3:18 PM
A case of a very big moodle installation.
Picture of Cesar Sanchez Cesar Sanchez
10 Sat, Sep 25, 2010, 2:31 AM
MOODLE fail to load styles.php over wireless
Picture of chris john chris john
0 Thu, Sep 30, 2010, 5:12 PM
Bandwidth Requirements?
Picture of Alex Penfold Alex Penfold
3 Tue, Sep 28, 2010, 5:50 AM
Midnight performance, httpd spawns too many workers?
Picture of Robert Minvielle Robert Minvielle
1 Mon, Sep 27, 2010, 9:05 PM
Time Off In Logs
Picture of Kris Turner Kris Turner
1 Fri, Sep 24, 2010, 10:34 AM
Intel Atom D510 as Dedicated Server?
Picture of James Nolan James Nolan
0 Mon, Sep 20, 2010, 2:32 PM
Postgres cluster function
Picture of John Coughlin John Coughlin
5 Mon, Aug 16, 2010, 8:49 PM
Hosting Moodle: how to define for a quote?
Picture of Derek Chirnside Derek Chirnside
9 Fri, Aug 27, 2010, 5:55 AM
To virtualize or not?
Picture of catherine walker catherine walker
1 Thu, Sep 16, 2010, 6:53 AM
httpd2-prefork high cpu utilization
Picture of Aaron Kovacich Aaron Kovacich
2 Wed, Sep 15, 2010, 11:59 PM
Moodle Server with load balancing
Picture of Meganathan Ramasamy Meganathan Ramasamy
6 Sat, Sep 11, 2010, 12:35 AM
rearranging course categories is very slow
Picture of Tobias Marx Tobias Marx
26 Tue, Aug 21, 2007, 11:39 PM
Moodle performance using open_basedir
Picture of Jan Suchanek Jan Suchanek
4 Thu, Sep 2, 2010, 4:32 PM
Server Requirements for large Moodle Deployment up to 40k users with500 concurrent scalable to 4000 concurent
Picture of Steve Beitzell Steve Beitzell
3 Fri, Aug 27, 2010, 10:37 PM
javascript error in ie7 on the first page of the site
Picture of Irith Herman Irith Herman
0 Fri, Aug 27, 2010, 9:39 PM
Hosting Service that Supports Moodle?
Picture of Andy Rota Andy Rota
2 Thu, Aug 26, 2010, 2:34 AM
Server for Moodle and Mahara
Picture of Sulaiman H Permana Sulaiman H Permana
1 Wed, Aug 25, 2010, 5:03 PM
Load-balanced web servers and cron.php
Picture of David Webber David Webber
4 Mon, Aug 23, 2010, 10:28 AM
Upload speed requirement
Picture of Johannes Solymosi Johannes Solymosi
7 Sat, Aug 21, 2010, 10:53 PM
Server configuration requirement help
Picture of Shyam S Shyam S
4 Thu, Aug 5, 2010, 10:38 PM
KIOSK Based Moodle
Picture of Manu Sharma Manu Sharma
3 Thu, Aug 5, 2010, 1:23 PM
Communication time between modules and time of execution
Picture of Artur Zacniewski Artur Zacniewski
4 Wed, Jul 28, 2010, 1:01 PM
The standed hardware req help
Picture of Michael Melton Michael Melton
8 Fri, Jul 23, 2010, 12:40 AM
Moodle for Windows on a USB Stick
Picture of Brett Drinkwater Brett Drinkwater
37 Fri, May 12, 2006, 11:10 AM
Moodle performance very slow
Picture of Globe College Globe College
9 Fri, Jun 25, 2010, 5:45 PM
New Moodler User - Hardware Necessary
Picture of Megan Calhoun Megan Calhoun
4 Sat, Jul 10, 2010, 1:12 AM
Poor performance and connection timeouts (Media Temple)
Picture of T Strait T Strait
3 Mon, Jul 12, 2010, 9:23 PM
Windows Server 2008 and Moodle cluster
Picture of Lee Procter Lee Procter
3 Tue, Nov 17, 2009, 10:01 PM
Doubt about the best configuration of the server for Moodle
Picture of Vianei Mayolo Vianei Mayolo
3 Sat, Jun 26, 2010, 1:06 AM
Online users block - performance
Picture of Susana L. Susana L.
2 Wed, Jul 7, 2010, 8:27 PM
Ability to run Moodle Tracking on CD?
Picture of Lorrie Whitacre Lorrie Whitacre
3 Thu, Jul 1, 2010, 10:41 PM
Speed up moodle
Picture of Ashish Khatavkar Ashish Khatavkar
4 Fri, Jun 25, 2010, 10:04 PM
Problem zipping & unzipping on the server
Picture of Ted Max Ted Max
3 Fri, Jun 25, 2010, 5:23 PM
site logs
Picture of John Roughley John Roughley
1 Fri, Jun 11, 2010, 3:45 AM
Serious Performance hit on login & user profiles
Picture of Michael Hughes Michael Hughes
1 Fri, Jun 18, 2010, 9:38 PM
Sessions on memcached?
Picture of Dan Poltawski Dan Poltawski
4 Thu, Jun 17, 2010, 7:56 AM
PostgreSQL server issues
Picture of Worth Bishop Worth Bishop
3 Fri, Jan 29, 2010, 4:22 AM
Add Edit Course load problem
Picture of Ansley Higgins Ansley Higgins
1 Thu, Jun 10, 2010, 5:52 PM
XCache with Moodle
Picture of Ângelo Rigo Ângelo Rigo
8 Wed, Jun 18, 2008, 8:52 PM
noob question : How to increase the extra php memory ?
Picture of Mireille Raad Mireille Raad
0 Wed, Jun 9, 2010, 5:36 PM
Re: Delivery Status Notification (Failure)
Picture of danish haroon danish haroon
1 Mon, Apr 5, 2010, 1:27 AM
Which Linux?
Picture of Steve Squires Steve Squires
22 Thu, May 13, 2010, 3:31 PM
Moodle 2.0 performance
Picture of sam marshall sam marshall
9 Tue, May 11, 2010, 8:31 PM
High performance / High availability architecture for Moodle 2.0?
Picture of Judy Lo Judy Lo
4 Tue, Apr 20, 2010, 6:38 PM
Convert innoDB back to MyISAM
Picture of HJWUCGA INC. HJWUCGA INC.
16 Mon, Mar 29, 2010, 3:37 AM
Need help regarding high availability
Picture of Mamdouh Tawfik Mamdouh Tawfik
5 Fri, Apr 30, 2010, 9:11 PM
Participants in meta courses aggregate very slowly
Picture of Christian Zick Christian Zick
2 Tue, Apr 20, 2010, 4:16 PM
High CPU usage
Picture of José de Jesús José de Jesús
10 Wed, Apr 14, 2010, 2:10 PM
PHP Memory Limit for 1.9.8
Picture of Jon Witts Jon Witts
6 Thu, Apr 15, 2010, 9:24 PM
About replicating/mirroring Moodle Database
Picture of Ashraf Aziz Ashraf Aziz
1 Sun, Apr 18, 2010, 5:58 AM
Minium hardware requeriments for...
Picture of Tomas Perez Socava Tomas Perez Socava
8 Wed, Apr 14, 2010, 8:51 PM
VPS install
Picture of Lisandro Laura Lisandro Laura
4 Sat, Apr 10, 2010, 3:24 AM
Disabling HTTPs Security from within
Picture of josh squires josh squires
2 Sun, Jul 22, 2007, 1:01 AM
How to install eAccelerate on Ubuntu 8.04?
Picture of Roland Sherwood Roland Sherwood
8 Sun, Sep 20, 2009, 11:36 PM
Slow page load, Why? or somethig else?
Picture of hugo joe hugo joe
1 Mon, Mar 29, 2010, 10:34 PM
Move from Shared to VPS...good move?
Picture of Erlyn Baack Erlyn Baack
4 Thu, Aug 20, 2009, 2:13 AM
2 fast processors or 4 slower ones given SATA drives?
Picture of greg mushial greg mushial
8 Tue, Mar 23, 2010, 4:40 AM
Moodle 1.9.7 and Clustering
Picture of Noveck Gowandan Noveck Gowandan
0 Sat, Mar 27, 2010, 2:45 AM
Moodle initial load is very slow on my linux server
Picture of Richard Proudfoot Richard Proudfoot
2 Wed, Mar 24, 2010, 11:17 AM
Where to throw the new/extra memory (usefully)?
Picture of greg mushial greg mushial
7 Tue, Mar 23, 2010, 1:58 AM
Apache Memory Leak
Picture of Brant Peterson Brant Peterson
27 Fri, Feb 8, 2008, 8:49 PM
Moodle and Content Distribution Networks (CDNs)
Picture of corprew reed corprew reed
3 Tue, Mar 23, 2010, 5:10 AM
Large scale Moodle Host Questions
Picture of joe sumpter joe sumpter
20 Wed, Sep 16, 2009, 6:13 AM
What is the best isolation level for MySql using InnoDB
Picture of Piotr Kochanski Piotr Kochanski
1 Tue, Mar 16, 2010, 4:11 PM
How to fix admin page Fatal Error
Picture of Robin Watts Robin Watts
2 Mon, Mar 15, 2010, 4:02 AM
Advice installing Moodle on a VM
Picture of Jamie Sawyer Jamie Sawyer
11 Wed, Mar 3, 2010, 11:40 PM
eAccelerator error and cache type setup
Picture of Veronica Bendersky Veronica Bendersky
18 Tue, Mar 9, 2010, 10:05 PM
PHP 5.2.5 performance
Picture of Lionel Redelinghuys Lionel Redelinghuys
1 Wed, Mar 3, 2010, 3:42 PM
News instalation (20k registered users / 1k concurrent users)
Picture of Renato Jr Renato Jr
14 Thu, Nov 26, 2009, 3:57 AM
E-learning system for government ( need urgent help)
Picture of ruba ruba ruba ruba
6 Fri, Feb 19, 2010, 11:35 PM
Could not insert record info in database.
Picture of Neelima Ramesh Neelima Ramesh
1 Mon, Jan 4, 2010, 5:41 PM
Advice on New Moodle Setup...
Picture of Aidan Hammond Aidan Hammond
6 Fri, May 19, 2006, 6:24 PM
Automatically delete users who never login
Picture of chris engelsma chris engelsma
5 Thu, Jan 21, 2010, 1:20 AM
SELECT COUNT query really bringing down performance
Picture of Shimron Trammell Shimron Trammell
8 Wed, Jan 27, 2010, 1:39 AM
lighttd vs. apache
Picture of Maik Riecken Maik Riecken
5 Sat, Nov 3, 2007, 6:01 PM
Apache crashes due to PHP out of memory error
Picture of Mohan V Mohan V
13 Fri, May 15, 2009, 11:29 PM
How do I turn logging off?
Picture of Bill Parsons Bill Parsons
0 Thu, Feb 18, 2010, 1:37 AM
Cache type setting under performance
Picture of Doris Johnson Doris Johnson
0 Tue, Feb 16, 2010, 10:22 PM
Hosting - I'm so lost
Picture of Mark Augias Mark Augias
3 Tue, Feb 16, 2010, 7:09 AM