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 2661 discussions
  Discussion Started by Replies Last post Created  
Site toooooooo slow
Picture of Annie Price Annie Price
9 Tue, Oct 9, 2012, 5:12 AM
Further slowdown and incompatability in move from 2.2. to 2.3
Picture of Richard van Iwaarden Richard van Iwaarden
16 Tue, Sep 25, 2012, 9:57 PM
Mac Mini Server
Picture of Conor Power Conor Power
5 Mon, Feb 6, 2012, 3:10 AM
Timeout problems when editing in Moodle 2.2.3
Picture of Gary Lebowitz Gary Lebowitz
8 Thu, Sep 27, 2012, 5:26 PM
Database server of Moodle 2.3.1 is a bottleneck
Picture of CP Lau CP Lau
14 Sun, Sep 16, 2012, 11:58 PM
Extra PHP memory limit options
Picture of Matthew Switlik Matthew Switlik
1 Wed, Oct 3, 2012, 4:44 AM
Delay between quiz question pages (how do I eliminate it?)
Picture of A Guy A Guy
5 Sun, Sep 30, 2012, 1:38 AM
Moodle Performance Test on JMeter
Picture of Elavarasan MS Elavarasan MS
0 Mon, Oct 1, 2012, 3:43 PM
php 100% high utilization
Picture of Sal Kaceli Sal Kaceli
8 Tue, Sep 25, 2012, 8:31 PM
Slowdown and incompatability in move from 2.2. to 2.3
Picture of Bill Steele Bill Steele
5 Sat, Sep 22, 2012, 11:21 AM
Slowdown after 1.9 -> 2.2 migration
Picture of Tamas Csillag Tamas Csillag
2 Thu, Sep 20, 2012, 9:37 PM
Allocating more bandwidth
Picture of curt bixel curt bixel
1 Fri, Sep 21, 2012, 8:02 PM
Intermittent performance problems
Picture of Simon Cole Simon Cole
4 Tue, Sep 18, 2012, 7:54 PM
Slow disk reads with Linux VMs, Moodle 1.9
Picture of Gregor Ronald Gregor Ronald
10 Thu, Sep 13, 2012, 5:11 AM
"MySQL server has gone away"
Picture of Dallen Farmer Dallen Farmer
8 Mon, Sep 17, 2012, 10:56 PM
slow site admin loading
Picture of Tod Anderson Tod Anderson
2 Wed, Sep 12, 2012, 1:28 AM
Slow page loading in Moodle 2.3.1? Try this:
Picture of Paul Nijbakker Paul Nijbakker
1 Fri, Sep 7, 2012, 2:56 PM
Hardware recommendations for my new moodle hosting
Picture of richa rathore richa rathore
6 Mon, Sep 3, 2012, 2:27 PM
no cachetype and rcache option in admin
Picture of CCManager DDeveloper CCManager DDeveloper
6 Sun, Jan 9, 2011, 9:24 PM
Separate MSSQL database server?
Picture of Richard Karel Richard Karel
2 Fri, Aug 31, 2012, 5:00 AM
Extremely slow SCORM module performance, pluginfile retrieval, but only on a specific course and courses derived from it
Picture of Mathew Gancarz Mathew Gancarz
15 Thu, Aug 16, 2012, 11:28 PM
Upgrading moodle performance - activities and resources deinstallation.
Picture of Marek Neuman Marek Neuman
2 Thu, Aug 30, 2012, 5:18 PM
moodle on shared hosting - keep killed
Picture of rendy kurniawan rendy kurniawan
1 Wed, Aug 29, 2012, 11:42 AM
Suhosin problem
Picture of Emma Richardson Emma Richardson
1 Wed, Aug 29, 2012, 4:54 AM
apache hang
Picture of boke xu boke xu
2 Tue, Aug 28, 2012, 12:18 PM
Moodle developer needed for tablet Moodle
Picture of Diana Muir Diana Muir
8 Thu, Aug 23, 2012, 9:54 PM
Advice
Picture of Gary Moncrieff Gary Moncrieff
2 Mon, Aug 20, 2012, 9:36 PM
Replication or Clustering
Picture of Troy Garrett Troy Garrett
3 Mon, Aug 6, 2012, 1:12 PM
cron.php leads to a very high cpu usage
Picture of hugo joe hugo joe
10 Wed, Jul 4, 2012, 7:02 PM
load user's picture very slow
Picture of Shwu-Fen Kuo Shwu-Fen Kuo
17 Fri, Aug 3, 2012, 11:30 AM
500 concurrent users on vitualization
Picture of Florin Cazanaru Florin Cazanaru
26 Thu, Jul 19, 2012, 9:57 PM
Moodle 2.2 on apache working with MS SQL db - problem with restoring the course
Picture of Jaroslaw Jozwik Jaroslaw Jozwik
4 Fri, Feb 3, 2012, 8:00 PM
The longer the day goes it seems to get slower
Picture of Mr. Marc Mr. Marc
20 Thu, Aug 2, 2012, 12:30 AM
Clustering test
Picture of Lawrence N Lawrence N
1 Sun, Jun 24, 2012, 1:28 PM
Error: Database connection failed after memory used up
Picture of hugo joe hugo joe
6 Mon, Jul 2, 2012, 8:27 AM
About eAccelerator Cached Scripts
Picture of red tiger red tiger
6 Tue, May 22, 2012, 10:26 AM
Browse list of users
Picture of Mei Ling Mei Ling
1 Fri, Jul 13, 2012, 5:18 PM
Moodle under-performance
Picture of Cathal O'Riordan Cathal O'Riordan
5 Tue, Jun 19, 2012, 11:07 PM
Easy quick performance boost for Moodle!
Picture of Grant Mucha Grant Mucha
3 Wed, Apr 11, 2012, 12:20 AM
Proposed architecture for Moodle 2.x
Picture of Cathal O'Riordan Cathal O'Riordan
16 Thu, Mar 1, 2012, 6:24 PM
Moodle Host Recomendations
Picture of Alan Reitzel Alan Reitzel
10 Fri, May 11, 2012, 7:58 AM
After upgrading from Moodle 2.2.2 to 2.2.3, the system slowed down
Picture of David Jiménez David Jiménez
1 Fri, May 25, 2012, 6:11 PM
Recommended Server Hardware: 600 users, Moodle 2.2
Picture of James Johnston James Johnston
1 Wed, Jun 20, 2012, 8:09 PM
Slow Moodle
Picture of Rob Monk Rob Monk
16 Tue, Feb 14, 2012, 9:54 AM
Performance and Stress Testing Questions
Picture of Wolf Ventir Wolf Ventir
9 Sat, Jun 9, 2012, 1:01 AM
Slow only for module courses
Picture of Igor Sant Ana Igor Sant Ana
1 Wed, Jun 20, 2012, 11:13 PM
Hosting in China for 3000 students
Picture of Ryan Schopp Ryan Schopp
7 Sat, Mar 10, 2012, 9:57 AM
Re: moodle system going down/getting stuck very often (II)
Picture of Sam McNeill Sam McNeill
5 Thu, May 31, 2012, 8:42 AM
Hardware Requirement for the moodle
Picture of manling ho manling ho
1 Wed, May 30, 2012, 11:19 PM
bluehost.com
Picture of Art Lader Art Lader
48 Sun, Nov 14, 2004, 3:47 AM
Unbarebly slow
Picture of Kevin Bayer Kevin Bayer
11 Sun, Jan 9, 2011, 6:24 AM
Hosting via Amazon Web Services and the new Elastic Bean Stalk for PHP 5.3
Picture of Chris Megahan Chris Megahan
6 Fri, Mar 23, 2012, 12:32 AM
resource caps hit with only one user
Picture of Mike Thon Mike Thon
4 Fri, Aug 19, 2011, 7:11 PM
mysql high CPU
Picture of Alan Dawson Alan Dawson
3 Tue, Sep 27, 2011, 11:22 PM
mdl_log table - how big's yours and how do you manage it?
Picture of Peter Roberts Peter Roberts
7 Tue, Apr 5, 2011, 9:42 PM
Mass storage device for MOODLE
Picture of K.James Mathai K.James Mathai
1 Wed, May 16, 2012, 7:31 PM
Possible hostings - Moodle 2.2.2
Picture of Leire Gómez Leire Gómez
1 Wed, May 16, 2012, 7:08 PM
Help!!
Picture of Jodi Le Masurier Jodi Le Masurier
10 Tue, May 15, 2012, 1:58 AM
CPU SERVER 97%
Picture of paco padilla paco padilla
8 Fri, May 11, 2012, 11:33 PM
MySQL queries monitor for Moodle
Picture of Alexander Holsteinson Alexander Holsteinson
0 Sat, May 5, 2012, 1:16 AM
dynamic multiple servers under load balancer in amazon
Picture of avi levi avi levi
1 Wed, May 2, 2012, 7:59 PM
strategies for reducing cost of common course query
Picture of David Ackerman David Ackerman
5 Tue, Apr 24, 2012, 7:32 AM
VMWare for Moodle 2.2
Picture of Tiffany Morgan Tiffany Morgan
6 Wed, Apr 25, 2012, 4:11 AM
dbperformance.php on innodb
Picture of Lael ... Lael ...
2 Mon, Feb 20, 2012, 12:14 PM
Slow loading Moodle Course for Admin
Picture of Jim Judges Jim Judges
4 Fri, Apr 20, 2012, 4:47 PM
UnixBench + Provider + Price + Type [Ideal for beginners]
Picture of Grant Mucha Grant Mucha
1 Thu, Apr 19, 2012, 2:08 AM
Helpful suggestions wanted for New Moodler!
Picture of Luis Martinez Luis Martinez
2 Sun, Apr 15, 2012, 9:12 AM
Is binary logging required for Moodle 2?
Picture of Stephen Overall Stephen Overall
1 Mon, Apr 16, 2012, 2:46 AM
Does Moodle 2.0 only run on a dedicated server with the best performance?
Picture of Joanna Tsai Joanna Tsai
2 Thu, Apr 12, 2012, 9:48 AM
Benchmarked EC2 / VPS / Dedicated
Picture of Grant Mucha Grant Mucha
4 Wed, Apr 11, 2012, 5:34 AM
Large Moodle Implementation
Picture of Christopher Medina Christopher Medina
3 Wed, Mar 7, 2012, 10:28 PM
Advice required for hosting with AWS
Picture of Jason De Donno Jason De Donno
10 Wed, Mar 28, 2012, 3:45 AM
Problems with cron after upgrading to 2.1.x -> 2.2.x
Picture of Tim Hunt Tim Hunt
3 Tue, Apr 3, 2012, 11:02 PM
System Requirements: Moodle for 100000+ Students and 10000 simultaneous users
Picture of Ted Celestin Ted Celestin
5 Fri, Feb 10, 2012, 1:29 AM
One server for 1000 concurrent user
Picture of Pham Kien Pham Kien
3 Fri, Mar 30, 2012, 11:12 PM
Caching and header expires in 1.9
Picture of james hill james hill
2 Mon, Mar 19, 2012, 1:21 AM
Dell PowerEdge T610 for 3000 users
Picture of Ryan Schopp Ryan Schopp
2 Mon, Mar 19, 2012, 5:38 AM
Latest server for Moodle 2.2+
Picture of Grant Mucha Grant Mucha
2 Fri, Mar 9, 2012, 1:24 AM
Moodle 2.0: Servre RAM momery showing full
Picture of dina patil dina patil
6 Fri, Mar 16, 2012, 1:31 PM
"500 Internal Server Error" at some intervals
Picture of atin kumar atin kumar
3 Wed, Mar 21, 2012, 2:21 PM
Preliminery observations for 100 concurrency test
Picture of rupesh patil rupesh patil
24 Fri, Jun 12, 2009, 5:37 PM
Moodle 2 on cloud ...
Picture of Saumil Trivedi Saumil Trivedi
3 Wed, Mar 7, 2012, 12:47 PM
Moodle slow for 2 users only
Picture of Frederic Nevers Frederic Nevers
6 Wed, Mar 14, 2012, 1:57 PM
A server that could deal with probably 350 users concurrently.
Picture of joshua sommermeyer joshua sommermeyer
1 Sat, Mar 10, 2012, 1:27 AM
new host, help
Picture of adam penner adam penner
11 Sun, Mar 4, 2012, 3:07 AM
Moodle on Amazon Web Services
Picture of Ian McNaught Ian McNaught
3 Wed, Jun 22, 2011, 6:26 PM
Moodle on load balancer and MNet
Picture of Uwe Böttcher Uwe Böttcher
6 Thu, Mar 1, 2012, 5:33 PM
Hardware/hosting for 1000 users accessing scorm
Picture of Shail Chopra Shail Chopra
6 Mon, Feb 13, 2012, 11:27 AM
performance testing with apache benchmark and logins
Picture of Cathal O'Riordan Cathal O'Riordan
4 Wed, Feb 22, 2012, 11:26 PM
Could Moodle support a shared nothing architecture?
Picture of Cathal O'Riordan Cathal O'Riordan
2 Wed, Feb 22, 2012, 7:44 PM
System Requirements: Moodle for 500 Students
Picture of Adrian Beck Adrian Beck
11 Tue, Sep 9, 2008, 4:21 PM
New for tuning: CFG->apachemaxmem for controlling memory footprint
Picture of Martín Langhoff Martín Langhoff
3 Thu, Apr 5, 2007, 3:56 PM
hosting
Picture of eda karacelebi eda karacelebi
5 Mon, Feb 13, 2012, 5:22 PM
Please recommend a suitable web provider.
Picture of red tiger red tiger
9 Sat, Feb 18, 2012, 6:35 PM
Anyway to monitor the health of my moodle hosting service?
Picture of Sam Mudle Sam Mudle
2 Sun, Feb 19, 2012, 12:45 AM
Cronjob and Moodle response
Picture of Guillaume Seraglini Guillaume Seraglini
2 Wed, Feb 15, 2012, 12:52 AM
Loading Moodle error 500 and 405
Picture of dina patil dina patil
1 Tue, Feb 14, 2012, 6:24 PM
Quiz - MySQL settings
Picture of Vyshnavi Ashish Vyshnavi Ashish
10 Mon, Feb 6, 2012, 12:03 PM
GoDaddy.com | Moodle 2.1.1 | File Size Increase
Picture of Aaron Czarnecki Aaron Czarnecki
2 Sun, Aug 21, 2011, 1:44 AM
How much concurrent users does moodle support?
Picture of Ming Jiang Ming Jiang
5 Wed, Feb 8, 2012, 7:44 AM