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  
As close to 100% uptime as possible, failover server?
Picture of Brian Yanosik Brian Yanosik
3 Sun, Feb 9, 2014, 11:22 AM
AGILIZACION DEL SISTEMA DE MATRICULA
Picture of joseph smith joseph smith
0 Sat, Feb 8, 2014, 2:21 PM
Moodle Setup for 30 concurrent users
Picture of Vishal Mene Vishal Mene
3 Fri, Feb 7, 2014, 7:37 PM
Moodle on OpenShift
Picture of José Grimaldo José Grimaldo
4 Thu, Feb 6, 2014, 10:17 PM
Simultaneously Concurrent Users with Multiple Moodles
Picture of JC Dodo JC Dodo
1 Thu, Feb 6, 2014, 1:17 PM
How to run the database performance script in Moodle
Picture of Mari Cruz García Mari Cruz García
14 Tue, Feb 4, 2014, 5:58 PM
Simultaneously Concurrent Users
Picture of Freddie Batista Freddie Batista
5 Sat, Feb 1, 2014, 5:03 AM
Cron Runtime
Picture of Jordan White Jordan White
1 Thu, Jan 30, 2014, 8:19 AM
Moodle Mobile on Android
Picture of gerard van rooy gerard van rooy
5 Tue, Jan 28, 2014, 3:01 PM
Moodle 2 Slow Admin login
Picture of john jackson john jackson
3 Sun, Jan 26, 2014, 9:46 AM
Help Converting Log Entries to Concurrent Users / RAM Requirement
Picture of Matthew Terhune Matthew Terhune
1 Sat, Jan 25, 2014, 5:36 AM
Moodle site gradually slowed now essentially stopped
Picture of Patrick Hallermann Patrick Hallermann
12 Thu, Jan 23, 2014, 5:49 PM
Server Hardware - look OK?
Picture of Rob Boris Rob Boris
6 Thu, Jan 23, 2014, 2:31 AM
Moodle crashing after upgrade to 2.4.7
Picture of Michael Hughes Michael Hughes
10 Tue, Jan 21, 2014, 8:30 PM
Moodle Server Crashing
Picture of Graham Stone Graham Stone
10 Mon, Jan 20, 2014, 7:04 PM
la informatica
Picture of Richard Liranzo Feliz Richard Liranzo Feliz
1 Sun, Jan 19, 2014, 12:52 AM
Moodle on an iPad
Picture of Erin Nickel Erin Nickel
3 Sat, Jan 18, 2014, 4:14 AM
STandard Moodle Administrator
Picture of Alice Garrard Alice Garrard
3 Sat, Jan 18, 2014, 12:41 AM
Would this server be powerful enough?
Picture of Nathan Bellato Nathan Bellato
8 Mon, Jan 13, 2014, 12:17 PM
Server Clustering recommendations M2.6
Picture of Albert Ramsbottom Albert Ramsbottom
13 Wed, Jan 8, 2014, 5:36 PM
problems with apache with 6000 users
Picture of Eslam Gamie Eslam Gamie
3 Sun, Jan 5, 2014, 9:15 PM
$CFG->localcachedir set to TMPFS?
Picture of Jeff White Jeff White
4 Fri, Jan 3, 2014, 11:31 PM
Massive forum emissions solution ?
Picture of Valery Fremaux Valery Fremaux
6 Fri, Jan 3, 2014, 7:39 PM
MySQL connection issues
Picture of Tony Yarusso Tony Yarusso
7 Thu, Jan 2, 2014, 4:18 PM
slowness after the moodle site migration
Picture of Pradeep Fernando Pradeep Fernando
1 Thu, Jan 2, 2014, 11:08 AM
The worst scenario for a DB crash caused by innodb_flush_log_at_trx_commit=2
Picture of Toni Soto Toni Soto
8 Sun, Dec 29, 2013, 6:21 AM
our website loading very sowlly
Picture of praveen decode praveen decode
3 Fri, Dec 20, 2013, 8:40 PM
How many users I can host with this specs
Picture of Romeo Chiritoiu Romeo Chiritoiu
1 Fri, Dec 20, 2013, 1:00 AM
Adding APC Extension to PHP fpr Caching
Picture of Geoff Diggles Geoff Diggles
19 Wed, Dec 18, 2013, 9:19 PM
apt-get moodle ERROR 1045
Picture of Dan Baker Dan Baker
3 Wed, Dec 18, 2013, 12:44 PM
OPCode cache
Picture of Kevin Burton Kevin Burton
18 Tue, Dec 17, 2013, 1:09 AM
PHP accelerator rookie questions
Picture of Tom Moseley Tom Moseley
8 Wed, Dec 11, 2013, 6:18 PM
Opcache, Moodle 2.6, and zend
Picture of Rick Jerz Rick Jerz
4 Sun, Dec 8, 2013, 8:43 AM
Problem with large backup files
Picture of David Bolger David Bolger
2 Fri, Dec 6, 2013, 5:55 PM
How can I improve performance?
Picture of samuel h samuel h
1 Fri, Dec 6, 2013, 12:58 AM
moodle crashed while quiz
Picture of Martin Fernandes Martin Fernandes
12 Thu, Dec 5, 2013, 10:22 PM
SCORM will not resume
Picture of V Martin V Martin
3 Thu, Dec 5, 2013, 7:52 PM
Memcache and load balanced web servers
Picture of jonny fireblade jonny fireblade
9 Wed, Dec 4, 2013, 6:00 PM
Hardware Sizing with Cluster Service
Picture of Sanchai Leelahakiat Sanchai Leelahakiat
15 Wed, Dec 4, 2013, 2:00 PM
Several Slow courses in M2.5?
Picture of Chris Chapman Chris Chapman
3 Mon, Dec 2, 2013, 10:57 PM
video player windows phone in moodle 2.5
Picture of laww m laww m
2 Mon, Dec 2, 2013, 4:50 PM
Performance with Ajax
Picture of Daniel Lombardo Daniel Lombardo
0 Sat, Nov 30, 2013, 5:56 PM
Recommendation on VPS spec
Picture of Melissa Benson Melissa Benson
26 Thu, Nov 28, 2013, 1:31 AM
Help ,Hardware and performance for Moodle server"
Picture of alex simg alex simg
3 Thu, Nov 28, 2013, 12:42 AM
moodle 2.4.7 is very slow....help me please T_T
Picture of Johnny Stevens Johnny Stevens
9 Thu, Nov 21, 2013, 1:36 AM
Slow cache purge etc.
Picture of Rikard E Rikard E
6 Wed, Nov 20, 2013, 5:42 PM
dbsessions and max_allowed_packet
Picture of Ricardo Santos Ricardo Santos
3 Tue, Nov 19, 2013, 12:26 AM
Full Site Backups
Picture of Ken Task Ken Task
10 Sat, Nov 16, 2013, 12:59 AM
Moodle 2.5 performance testing at the OU
Picture of Tim Hunt Tim Hunt
17 Sat, Nov 16, 2013, 12:30 AM
Does this data point to where our bottleneck is.
Picture of Rob Monk Rob Monk
10 Fri, Nov 15, 2013, 8:38 AM
Hosting "Grade"
Picture of David Berghouse David Berghouse
4 Fri, Nov 15, 2013, 4:56 AM
Inconceivable loss of data
Picture of Albert Ramsbottom Albert Ramsbottom
3 Thu, Nov 14, 2013, 5:38 PM
Using igbinary serializer
Picture of Daniel Tran Daniel Tran
1 Fri, Oct 18, 2013, 11:43 PM
Is Moodle 2.5.2+ faster than 2.5.1+ ?
Picture of Rick Jerz Rick Jerz
0 Wed, Oct 16, 2013, 11:12 PM
Cron for two web servers
Picture of Albert Ramsbottom Albert Ramsbottom
11 Wed, Oct 16, 2013, 12:02 AM
Health Tool
Picture of Rory Peacock Rory Peacock
0 Mon, Oct 14, 2013, 9:14 PM
Significant slow down on login
Picture of david english david english
6 Thu, Oct 10, 2013, 9:27 PM
Jmeter again, different results
Picture of Albert Ramsbottom Albert Ramsbottom
1 Thu, Oct 10, 2013, 7:33 PM
Can I built moodle site with EasyPHP+windows server2003+moodle2.5.2
Picture of rui zeng rui zeng
0 Thu, Oct 10, 2013, 11:08 AM
Error when testing moodle using JMeter
Picture of Albert Ramsbottom Albert Ramsbottom
4 Mon, Oct 7, 2013, 8:43 PM
Question re using linux TOP and associating PID with process/task
Picture of Susan Mangan Susan Mangan
5 Sat, Oct 5, 2013, 2:57 AM
20+ language packs installed - bad for performance?
Picture of Judy Hsu Judy Hsu
1 Fri, Oct 4, 2013, 5:26 AM
Please help me configure mysql for large Moodle site.
Picture of Doctor J.W. Müller Doctor J.W. Müller
1 Thu, Oct 3, 2013, 10:59 PM
Hardware requirement for moodle
Picture of Mohan kumar Mohan kumar
8 Tue, Oct 1, 2013, 7:30 PM
Hardware for 1400 users
Picture of Tobias Ceglarek Tobias Ceglarek
1 Tue, Oct 1, 2013, 6:32 PM
Moodle performance in hosted environement
Picture of Alan Kmiecik Alan Kmiecik
0 Mon, Sep 30, 2013, 10:39 PM
play video in mobile not play
Picture of laww m laww m
0 Sun, Sep 29, 2013, 11:53 AM
Moodle 2.5.2 for Windows loading very slow
Picture of Pippo Pioppo Pippo Pioppo
0 Fri, Sep 27, 2013, 11:54 PM
Activated caching (memcached) produces segmentation faults
Picture of franz reitinger franz reitinger
4 Fri, Sep 27, 2013, 2:38 PM
Plugin Error
Picture of Freddie Batista Freddie Batista
0 Fri, Sep 27, 2013, 2:21 AM
Unofficial (?) preview of Moodle 2.6 performance
Picture of Justin Filip Justin Filip
0 Fri, Sep 27, 2013, 12:56 AM
System Locking up with more than a dozen users
Picture of Mark Hardwick Mark Hardwick
17 Thu, Sep 26, 2013, 8:22 AM
Major Performance Issues 2.4.3 (Need Help)
Picture of Rory Peacock Rory Peacock
1 Thu, Sep 26, 2013, 4:29 AM
Apache processes
Picture of Albert Ramsbottom Albert Ramsbottom
1 Wed, Sep 25, 2013, 3:26 PM
character encoding pound signs
Picture of dan attwood dan attwood
4 Wed, Sep 25, 2013, 12:01 AM
Error Reading Database Moodle 2.51
Picture of Kevin Miller Kevin Miller
1 Mon, Sep 23, 2013, 11:38 PM
Moodle 1.9 migrated site EXTREMELY SLOW
Picture of Doctor J.W. Müller Doctor J.W. Müller
3 Fri, Sep 20, 2013, 5:37 PM
Many php-cgi processes brings down moodle, more resources needed?
Picture of Paul L Paul L
7 Thu, Sep 19, 2013, 10:42 PM
How to (really) delete fake accounts?
Picture of David Dunn David Dunn
0 Thu, Sep 19, 2013, 3:28 PM
Too many moodle precesses
Picture of Ralph Ballier Ralph Ballier
1 Wed, Sep 18, 2013, 6:54 AM
Moodle 2.5.2 Site page loads for admin user
Picture of Daniel Mc Sweeney Daniel Mc Sweeney
2 Fri, Sep 13, 2013, 6:15 PM
Performance on Dreamhost VPS
Picture of Jorge Ballesteros Jorge Ballesteros
6 Thu, Sep 12, 2013, 5:41 PM
Issues installing APC on shared server
Picture of Shirley Berry Shirley Berry
8 Thu, Sep 12, 2013, 4:39 AM
What would you buy?
Picture of Eric Hagley Eric Hagley
21 Wed, Sep 11, 2013, 2:56 PM
Minimum Hardware
Picture of Claire Holland Claire Holland
4 Tue, Sep 10, 2013, 7:50 PM
3 options for Moodle database cluster
Picture of CP Lau CP Lau
13 Tue, Sep 10, 2013, 4:53 PM
Better location for moodledata directory?
Picture of hugo joe hugo joe
1 Tue, Sep 10, 2013, 4:37 PM
Server suddenly uses all memory resources.
Picture of Arnold Lamont Arnold Lamont
0 Mon, Sep 9, 2013, 5:01 PM
Super slow site
Picture of Eugene Voevodin Eugene Voevodin
0 Fri, Sep 6, 2013, 3:02 PM
2.4.5+ (Build: 20130712) - intermittent performance issues
Picture of Susan Mangan Susan Mangan
10 Thu, Sep 5, 2013, 3:24 AM
What makes the "Teaching with Moodle" MOOC course work so well?
Picture of Rick Jerz Rick Jerz
14 Mon, Sep 2, 2013, 11:43 PM
local mysql vs remote server
Picture of Yedidia Klein Yedidia Klein
1 Mon, Sep 2, 2013, 4:14 PM
Restoring courses is slow, php settings advice
Picture of Rick Jerz Rick Jerz
7 Fri, Aug 30, 2013, 8:02 PM
Hardware Architecture of Moodle (moodle.org) Site
Picture of Usman Asar Usman Asar
3 Fri, Aug 30, 2013, 1:58 AM
Moodle crash error
Picture of Vic Vicenzi Vic Vicenzi
7 Wed, Aug 28, 2013, 11:58 PM
My Moodle 2.5.1 is performing very slowly
Picture of Richard Solomon Richard Solomon
2 Sun, Aug 25, 2013, 12:06 AM
Moodle 2.5.1 running slow -- with troubleshooting details
Picture of Megan Hayes-Golding Megan Hayes-Golding
6 Fri, Aug 23, 2013, 12:01 AM
Moodle causing httpd service to hog CPU
Picture of Ash Roach Ash Roach
0 Thu, Aug 22, 2013, 10:41 PM
Changing session.save_path
Picture of m M m M
2 Wed, Aug 21, 2013, 10:27 PM
Moodle 2.4.5 vs 2.5.1 performance and MUC APC cache store
Picture of Justin Filip Justin Filip
5 Wed, Aug 21, 2013, 4:33 AM