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 Performance documentation. The complete documentation is at MoodleDocs.

Many of the questions have already been answered. Please make use of the 'Using Moodle' advanced search facility and the Google custom search to find them.

If your questions still remain unanswered, post them here. Please include as much background information as possible about your hardware, the operating system, the web server, the database server, the PHP scripting framework, etc. If your machine is virtualized, also mention the host hardware, the operating system, the virtualization technology used and the resources assigned to the virtual machine. If you use a hosting service, mention either the hosting provider and the package or the resources as advertised.

For general advice on how to ask questions, refer Moodle.org forums help. Also please observe our Moodle.org forums Code of Conduct.

Best wishes,
your moderator Howard.


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DiscussionStarted byRepliesLast post
How to perform SQL MDF File Repair task? Picture of john marshall john marshall 4 Recover Data
Sat, Apr 19, 2014, 4:39 PM
Will this configuration handle 20K users? Picture of German Acevedo German Acevedo 4 Usman Asar
Sat, Apr 19, 2014, 3:20 AM
mdl_events Table QED Marc Hermon 1 Howard Miller
Wed, Apr 16, 2014, 4:42 PM
Moodle Apache service stopped Picture of krishna T krishna T 2 Howard Miller
Wed, Apr 16, 2014, 4:41 PM
Moodle site gradually slowed now essentially stopped Picture of Patrick Hallermann Patrick Hallermann 11 Marc Hermon
Wed, Apr 16, 2014, 4:44 AM
Implement moodle vs nginx or apache Picture of Toan Tran Toan Tran 1 Bartosz Cisek
Mon, Apr 14, 2014, 6:17 PM
Database overload everyday at 1.00pm - err Picture of Seth Mengal Seth Mengal 8 james mergenthaler
Fri, Apr 11, 2014, 11:34 PM
Apache perfomance issue Picture of Saurabh Makol Saurabh Makol 1 james mergenthaler
Fri, Apr 11, 2014, 11:29 PM
Moodle Connection Time Out Issue Picture of N B N B 1 james mergenthaler
Fri, Apr 11, 2014, 11:16 PM
HELP ! Admin rights deleting from users FreddieDiazBatista.com Freddie Batista 4 james mergenthaler
Fri, Apr 11, 2014, 11:12 PM
jMeter and Quizzes Picture of Jason Cameron Jason Cameron 3 Jason Cameron
Fri, Apr 11, 2014, 12:29 AM
Some Tips on Getting nginx+php-fpm working Picture of Kory Prince Kory Prince 11 Francisco Azcunaga
Thu, Apr 10, 2014, 2:12 PM
jmeter with ldap Picture of Mark Sharp Mark Sharp 1 Jason Cameron
Thu, Apr 10, 2014, 10:17 AM
suggestion on specs Picture of awais tahir awais tahir 2 Usman Asar
Wed, Apr 9, 2014, 1:09 AM
Set Up Memcached and Memcache for Windows 2008 and IIS Picture of Paul L Paul L 3 Paul L
Tue, Apr 8, 2014, 10:39 PM
How to simulate user do quiz multi choice use Jmeter ! Picture of Tran The A n Tran The A n 4 Tim Hunt
Fri, Apr 4, 2014, 8:37 PM
How to configure MongoDB caching? Picture of Paul L Paul L 12 Paul L
Fri, Apr 4, 2014, 2:47 AM
Cache setting: Event invalidation Picture of Ron Meske Ron Meske 2 jason everling
Fri, Apr 4, 2014, 12:09 AM
Design Constraints of Moodle Picture of Bertie Corrie Bertie Corrie 3 Bertie Corrie
Wed, Apr 2, 2014, 8:12 PM
What would you buy? Picture of Eric Hagley Eric Hagley 21 jason everling
Thu, Mar 27, 2014, 2:07 AM
eAccelerator Picture of Brad Fisher Brad Fisher 3 jason everling
Thu, Mar 27, 2014, 1:04 AM
MUC performance information in a Windows 2008-IIS7 server My picture Aaricia Thorgalson (aka Mari Cruz García) 0 Aaricia Thorgalson (aka Mari Cruz García)
Tue, Mar 25, 2014, 7:43 PM
Memcache user sessions You either love it or you hate it Albert Ramsbottom 9 Adam Durana
Wed, Mar 12, 2014, 12:39 AM
Slow cache purge etc. Picture of Rikard E Rikard E 6 Rikard E
Wed, Mar 5, 2014, 3:49 PM
Load balanced webservers failing Picture of Ellio Mourinho Ellio Mourinho 7 Albert Ramsbottom
Tue, Feb 25, 2014, 12:24 AM
Login page is not loading Picture of Rich Markovitz Rich Markovitz 1 Emma Richardson
Mon, Feb 24, 2014, 11:38 AM
hardware software sizing Picture of Tobias Olausson Tobias Olausson 6 Tobias Olausson
Fri, Feb 21, 2014, 8:00 PM
Moodle slow on firefox Picture of Mira El-koussa Mira El-koussa 2 Guillermo Madero
Thu, Feb 20, 2014, 2:21 AM
best architecture for a large installation Picture of Fouzi Sukhilala Fouzi Sukhilala 13 Albert Ramsbottom
Wed, Feb 19, 2014, 8:36 PM
Moodle 2.5 performance testing at the OU Tim at Lone Pine Koala Sanctuary Tim Hunt 17 Tim Hunt
Wed, Feb 19, 2014, 5:09 PM
Moodle 2.6 cluster + NFS v4 Picture of sTIC ASIC Team A sTIC ASIC Team A 4 Matteo Scaramuccia
Wed, Feb 19, 2014, 4:54 AM
Are my cache stores and instances configured correctly? Picture of Paul L Paul L 5 Paul L
Wed, Feb 19, 2014, 2:17 AM
Amazon AWS You either love it or you hate it Albert Ramsbottom 6 Albert Ramsbottom
Tue, Feb 18, 2014, 8:16 PM
Idea for Moodle performance metrics Picture of Tomasz Muras Tomasz Muras 8 David Monllaó
Mon, Feb 17, 2014, 12:59 PM
Server Clustering recommendations M2.6 You either love it or you hate it Albert Ramsbottom 13 J S
Sun, Feb 16, 2014, 4:50 AM
Moodle 2.5 Templates Picture of Chase Brown Chase Brown 0 Chase Brown
Sat, Feb 15, 2014, 6:30 AM
Moodle arquitecture - AWS Picture of Julian Agudelo Julian Agudelo 9 Albert Ramsbottom
Wed, Feb 12, 2014, 7:34 PM
As close to 100% uptime as possible, failover server? Picture of Brian Yanosik Brian Yanosik 3 Albert Ramsbottom
Tue, Feb 11, 2014, 5:57 PM
Moodle Setup for 30 concurrent users Picture of Vishal Mene Vishal Mene 3 Vishal Mene
Tue, Feb 11, 2014, 5:03 PM
How to run the database performance script in Moodle My picture Aaricia Thorgalson (aka Mari Cruz García) 14 Ken Task
Tue, Feb 11, 2014, 2:56 AM
dbsessions and max_allowed_packet Picture of Ricardo Santos Ricardo Santos 3 Miryam Moreno Pacheco
Mon, Feb 10, 2014, 11:16 PM
Browsers Picture of sheila jagannathan sheila jagannathan 5 Pam Redpath
Sun, Feb 9, 2014, 10:29 AM
AGILIZACION DEL SISTEMA DE MATRICULA Picture of joseph smith joseph smith 0 joseph smith
Sat, Feb 8, 2014, 2:21 PM
Simultaneously Concurrent Users with Multiple Moodles Picture of JW Bright JW Bright 1 Howard Miller
Fri, Feb 7, 2014, 5:42 PM
Moodle on OpenShift Picture of José Grimaldo José Grimaldo 4 José Grimaldo
Fri, Feb 7, 2014, 12:57 AM
STandard Moodle Administrator Picture of alice garrard alice garrard 3 jason everling
Thu, Feb 6, 2014, 6:37 AM
Server Hardware - look OK? Picture of Rob Boris Rob Boris 6 Howard Miller
Wed, Feb 5, 2014, 5:59 PM
Simultaneously Concurrent Users FreddieDiazBatista.com Freddie Batista 5 J S
Mon, Feb 3, 2014, 3:08 AM
Moodle crashing after upgrade to 2.4.7 Picture of Michael Hughes Michael Hughes 10 Dan Poltawski
Thu, Jan 30, 2014, 1:02 PM
Cron Runtime Picture of Jordan White Jordan White 1 Ken Task
Thu, Jan 30, 2014, 9:46 AM
Moodle Mobile on Android Picture of gerard van rooy gerard van rooy 5 Howard Miller
Thu, Jan 30, 2014, 2:50 AM
MySQL server has gone away At work Ângelo Rigo 7 Jesse O'Brien
Mon, Jan 27, 2014, 11:21 PM
Moodle 2 Slow Admin login Picture of john jackson john jackson 3 Valery Fremaux
Sun, Jan 26, 2014, 9:15 PM
Moodle Server Crashing Picture of Graham Stone Graham Stone 10 Ken Task
Sun, Jan 26, 2014, 5:58 AM
Help Converting Log Entries to Concurrent Users / RAM Requirement Picture of Matthew Terhune Matthew Terhune 1 J S
Sat, Jan 25, 2014, 9:00 AM
la informatica Picture of Richard Liranzo Feliz Richard Liranzo Feliz 1 German Valero
Sun, Jan 19, 2014, 8:33 AM
Moodle on an iPad Picture of Erin Nickel Erin Nickel 3 ben reynolds
Sun, Jan 19, 2014, 12:10 AM
Would this server be powerful enough? Picture of Nathan Bellato Nathan Bellato 8 Howard Miller
Tue, Jan 14, 2014, 7:58 PM
MySQL connection issues Picture of Tony Yarusso Tony Yarusso 7 Tony Yarusso
Sat, Jan 11, 2014, 7:28 AM
Hardware Sizing with Cluster Service Picture of Sanchai Leelahakiat Sanchai Leelahakiat 15 Albert Ramsbottom
Wed, Jan 8, 2014, 6:47 PM
Adding APC Extension to PHP fpr Caching Picture of Geoff Diggles Geoff Diggles 19 Simon Allison
Tue, Jan 7, 2014, 4:57 PM
Massive forum emissions solution ? Picture of Valery Fremaux Valery Fremaux 4 Tim Hunt
Mon, Jan 6, 2014, 4:53 PM
3 options for Moodle database cluster Picture of CP Lau CP Lau 13 CP Lau
Mon, Jan 6, 2014, 11:00 AM
problems with apache with 6000 users Picture of Eslam Gamie Eslam Gamie 3 Ken Task
Mon, Jan 6, 2014, 2:19 AM
$CFG->localcachedir set to TMPFS? Picture of Jeff White Jeff White 4 Andrea Bicciolo
Sat, Jan 4, 2014, 2:53 AM
The worst scenario for a DB crash caused by innodb_flush_log_at_trx_commit=2 Picture of Toni Soto Toni Soto 8 jason everling
Fri, Jan 3, 2014, 3:30 AM
slowness after the moodle site migration Picture of Pradeep Fernando Pradeep Fernando 1 Howard Miller
Thu, Jan 2, 2014, 8:02 PM
OPCode cache Picture of Kevin Burton Kevin Burton 12 Mark Hayes
Fri, Dec 27, 2013, 11:14 AM
our website loading very sowlly Picture of praveen decode praveen decode 3 Usman Asar
Thu, Dec 26, 2013, 5:52 AM
How many users I can host with this specs Picture of Romeo Chiritoiu Romeo Chiritoiu 1 jason everling
Fri, Dec 20, 2013, 9:10 AM
apt-get moodle ERROR 1045 Picture of Dan Baker Dan Baker 3 Dan Baker
Thu, Dec 19, 2013, 10:01 AM
moodle crashed while quiz Picture of Martin Fernandes Martin Fernandes 12 Emma Richardson
Thu, Dec 12, 2013, 8:36 PM
SCORM will not resume Picture of V Martin V Martin 3 Usman Asar
Thu, Dec 12, 2013, 11:48 AM
PHP accelerator rookie questions Picture of Tom Moseley Tom Moseley 8 Tom Moseley
Thu, Dec 12, 2013, 1:40 AM
Opcache, Moodle 2.6, and zend Picture of Rick Jerz Rick Jerz 4 Rick Jerz
Tue, Dec 10, 2013, 9:09 PM
Inconceivable loss of data You either love it or you hate it Albert Ramsbottom 3 Dan Marsden
Mon, Dec 9, 2013, 2:33 PM
Recommendation on VPS spec Picture of Melissa Benson Melissa Benson 26 Visvanath Ratnaweera
Sun, Dec 8, 2013, 10:30 PM
Problem with large backup files Picture of David Bolger David Bolger 2 Visvanath Ratnaweera
Sat, Dec 7, 2013, 6:17 AM
How can I improve performance? Picture of samuel h samuel h 1 Howard Miller
Fri, Dec 6, 2013, 3:12 AM
Moodle set up for 60 concurrent quiz users Picture of Jeff Baldmann Jeff Baldmann 14 jason everling
Fri, Dec 6, 2013, 2:37 AM
Memcache and load balanced web servers Picture of jonny fireblade jonny fireblade 8 Howard Miller
Wed, Dec 4, 2013, 10:37 PM
Several Slow courses in M2.5? Picture of Chris Chapman Chris Chapman 3 Howard Miller
Tue, Dec 3, 2013, 5:46 PM
video player windows phone in moodle 2.5 Picture of laww m laww m 2 laww m
Tue, Dec 3, 2013, 10:38 AM
Performance with Ajax Picture of Daniel Lombardo Daniel Lombardo 0 Daniel Lombardo
Sat, Nov 30, 2013, 5:56 PM
Recommended Load Balancing algorithms for moodle Picture of m M m M 7 Anna Jonna Ármannsdóttir
Fri, Nov 29, 2013, 6:57 AM
Moodle 2.4 session data in memcached Picture of Robert Zakrocki Robert Zakrocki 3 Anna Jonna Ármannsdóttir
Fri, Nov 29, 2013, 5:44 AM
Help ,Hardware and performance for Moodle server" Picture of alex simg alex simg 3 Usman Asar
Thu, Nov 28, 2013, 10:45 AM
Moodle 2.4 much slower than 2.3 on Windows Server Picture of Benjamin St.Germain Benjamin St.Germain 22 Paul L
Thu, Nov 28, 2013, 2:16 AM
What makes the "Teaching with Moodle" MOOC course work so well? Picture of Rick Jerz Rick Jerz 14 Anna Jonna Ármannsdóttir
Thu, Nov 28, 2013, 1:08 AM
moodle 2.4.7 is very slow....help me please T_T Picture of Johnny Stevens Johnny Stevens 9 samuel h
Wed, Nov 27, 2013, 6:12 PM
Does this data point to where our bottleneck is. Picture of Rob Monk Rob Monk 10 Simon Brock
Wed, Nov 27, 2013, 7:02 AM
Moodle and Wordpress Server farm/cluster Picture of Paul Garratt Paul Garratt 4 Albert Ramsbottom
Tue, Nov 19, 2013, 8:43 PM
Full Site Backups Picture of Ken Task Ken Task 10 Albert Ramsbottom
Tue, Nov 19, 2013, 7:51 PM
Hosting "Grade" Picture of David Berghouse David Berghouse 4 Howard Miller
Tue, Nov 19, 2013, 6:05 PM
Using igbinary serializer Picture of Daniel Tran Daniel Tran 1 Adam Durana
Sat, Nov 16, 2013, 12:08 AM
Cron for two web servers You either love it or you hate it Albert Ramsbottom 11 Guillermo Madero
Fri, Oct 18, 2013, 9:40 PM
Is Moodle 2.5.2+ faster than 2.5.1+ ? Picture of Rick Jerz Rick Jerz 0 Rick Jerz
Wed, Oct 16, 2013, 11:24 PM
Moodle 2.5.2 Site page loads for admin user Daniel McSweeney Daniel Mc Sweeney 2 Haakon Meland Eriksen
Wed, Oct 16, 2013, 8:47 PM
Health Tool Picture of Rory Peacock Rory Peacock 0 Rory Peacock
Mon, Oct 14, 2013, 9:14 PM
Significant slow down on login Picture of david english david english 6 Visvanath Ratnaweera
Mon, Oct 14, 2013, 6:22 PM
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