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.


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DiscussionStarted byRepliesLast post
Deploying Moodle 3.3 on an IIS cluster. Picture of Joseph Cape Joseph Cape 3 Usman Asar
Sat, 22 Jul 2017, 11:14 AM
JMeter trouble Picture of Bernat Martinez Bernat Martinez 2 Bernat Martinez
Fri, 21 Jul 2017, 12:06 AM
cannot purge standard log in Moodle 3.1 although set keep standard log only for 5 days Picture of William Chan William Chan 2 Jeff White
Thu, 20 Jul 2017, 10:21 PM
MySQL server has gone away when trying to delete course Picture of Mateusz Szuter Mateusz Szuter 7 Mateusz Szuter
Tue, 18 Jul 2017, 2:40 PM
System Hangs a lot after installing Moodle Picture of Grzegorz Szorc Grzegorz Szorc 4 Stefan Adam
Tue, 18 Jul 2017, 5:08 AM
Is Moodle using the MySQL sys schema? Picture of Sergey Kinash Sergey Kinash 2 Sergey Kinash
Mon, 17 Jul 2017, 4:22 AM
Getting Inconsistent data from multi-node memcached cluster AWS Elasticache Picture of priye ranjan priye ranjan 1 Howard Miller
Sun, 16 Jul 2017, 10:05 PM
Moodle file picker not working Picture of Taj Des Taj Des 15 Francisco Nieto
Fri, 14 Jul 2017, 8:09 AM
Scorm Packages Upload and Duplicate Issue Picture of Muhammad Ammar` Ijaz Muhammad Ammar` Ijaz 2 Muhammad Ammar` Ijaz
Tue, 11 Jul 2017, 9:17 PM
Hardware in large scal Picture of wahid Anwar wahid Anwar 6 Howard Miller
Tue, 11 Jul 2017, 1:44 PM
CPU overloaded Picture of Bernat Martinez Bernat Martinez 7 Muhammad Umer khan
Thu, 6 Jul 2017, 6:00 PM
MySQL Performance for Moodle Picture of Jonathan V Jonathan V 10 Tavi Al
Tue, 4 Jul 2017, 10:30 PM
Moodle Running So Slow Picture of christian orvin christian orvin 3 Howard Miller
Tue, 4 Jul 2017, 2:07 PM
quiz - advise needed Picture of jhon grenn jhon grenn 6 jhon grenn
Wed, 28 Jun 2017, 2:54 PM
Jmeter Regular Expression Extractor for "sesskey" Picture of Arabinda P Arabinda P 3 Tim Hunt
Wed, 28 Jun 2017, 12:24 AM
Is 371ms within an acceptable range for time to download the dashboard on a new installation? Picture of Corey Brett Corey Brett 2 Mathew Gancarz
Tue, 27 Jun 2017, 10:50 PM
Configuring PHP-FPM for performance Picture of Heiko Schach Heiko Schach 5 Corey Brett
Mon, 26 Jun 2017, 7:50 PM
Quiz timer starts before first page loads (Moodle 2.7.19) Picture of Simon Cheng Simon Cheng 2 Mary Cooch
Sat, 24 Jun 2017, 6:28 PM
Email problem? System slow to create users or complete tests Picture of Stuart Ridout Stuart Ridout 1 Jamie Kramer
Wed, 21 Jun 2017, 9:46 PM
New Moodle 3.3 service super slow Picture of Jason Menard Jason Menard 2 Jeff White
Wed, 21 Jun 2017, 2:47 AM
Clustered file system for Moodledata Picture of Jeff White Jeff White 0 Jeff White
Wed, 21 Jun 2017, 2:31 AM
[Moodle BenchMark] Need Beta-tester Picture of Mickaël PANNEQUIN Mickaël PANNEQUIN 56 James Steerpike
Mon, 19 Jun 2017, 12:58 AM
how do you handle long tasks ? Picture of Julien Boulen Julien Boulen 7 Tim Hunt
Fri, 16 Jun 2017, 4:05 AM
Caching the moodledata directory Picture of Roland Chapin Roland Chapin 3 Jeff White
Fri, 16 Jun 2017, 1:48 AM
How does using the Mobile App affect server performance? Picture of James Steerpike James Steerpike 1 Howard Miller
Thu, 15 Jun 2017, 5:35 AM
Moodle Installation in Rural Area Picture of Dave Jackson Dave Jackson 3 James Steerpike
Mon, 12 Jun 2017, 4:32 PM
Could not handle 60 requests at a time for online quiz Picture of Santhosh Chandra Santhosh Chandra 2 Usman Asar
Sun, 11 Jun 2017, 2:07 AM
Server Hardware Requirement for 300 User Ady Aditya Gautam 14 James Steerpike
Sat, 10 Jun 2017, 12:36 PM
Postgresql performance slow Picture of David Vishloff David Vishloff 0 David Vishloff
Sat, 10 Jun 2017, 4:05 AM
I AM TERRIFIED : MOODLE IS VERY SLOW ! Picture of fleu risseur fleu risseur 33 Marcel Matschke
Thu, 1 Jun 2017, 5:38 AM
Performance stuck in 250 Concurrent request / second Picture of Pupil Senpro Pupil Senpro 7 Abbie Abbey
Tue, 30 May 2017, 2:16 PM
Errors in apache2 log - is this normal? Picture of Conor Bradley Conor Bradley 2 Conor Bradley
Thu, 25 May 2017, 10:05 PM
bar code login Picture of Mahir M Hameed Mahir M Hameed 2 AL Rachels
Wed, 17 May 2017, 10:29 PM
All admin features causing 504 timeouts Picture of r j r j 1 r j
Wed, 10 May 2017, 10:11 PM
Dev server performance tips (Windows) Picture of Ole Frank Jensen Ole Frank Jensen 7 Ole Frank Jensen
Wed, 10 May 2017, 3:17 PM
Moodle session driver always write to mdl_sessions despite your setting (Memcached, File) no me Alfie Punnoose 0 Alfie Punnoose
Fri, 5 May 2017, 1:29 PM
MySQL Full Unicode Support - SLOW!! Picture of Howard Miller Howard Miller 16 Howard Miller
Fri, 28 Apr 2017, 8:52 PM
Moodle 3.2.2 on Shared Hosting Picture of Fred Cole Fred Cole 8 Rick Jerz
Fri, 28 Apr 2017, 12:07 AM
A moodle setup for 2K simultaneous users taking quiz Picture of Mahir M Hameed Mahir M Hameed 13 John Papworth
Wed, 26 Apr 2017, 5:38 PM
"Slow" render Times not under 1.2 sek Picture of Marcel Matschke Marcel Matschke 13 Marcel Matschke
Sat, 22 Apr 2017, 2:52 AM
basic performance tuning Picture of Fabienne Neveu Fabienne Neveu 7 Fabienne Neveu
Thu, 20 Apr 2017, 7:59 PM
Moodle on AWS load balancing Architecture Picture of Steve Pollock Steve Pollock 1 Howard Miller
Wed, 19 Apr 2017, 7:09 PM
Failover moodle server Picture of dwi sudibyo dwi sudibyo 4 dwi sudibyo
Fri, 14 Apr 2017, 1:16 PM
Courses for 6000 students Picture of Lorenzzo Mollinar Lorenzzo Mollinar 1 Usman Asar
Tue, 11 Apr 2017, 11:14 PM
Moodle not accessible after purging cache! Picture of Anirudh Phadke Anirudh Phadke 2 Anirudh Phadke
Tue, 11 Apr 2017, 7:19 PM
Moodle not detecting the hardware devices? Picture of Simon Casey Simon Casey 1 Howard Miller
Sat, 8 Apr 2017, 4:21 PM
Configuring Server for 9000 users Picture of Luca Viggiani Luca Viggiani 3 Howard Miller
Fri, 7 Apr 2017, 6:13 PM
500 Internal Server Errors on saving pages Picture of Conrad Murray Conrad Murray 1 Howard Miller
Thu, 30 Mar 2017, 6:14 PM
Assignment Submission Taking over 5 minutes Picture of Brandon Stocks Brandon Stocks 2 Brandon Stocks
Wed, 29 Mar 2017, 1:47 AM
"what hardware do I need for 500 user?" Picture of othman nezzaghy othman nezzaghy 5 Howard Miller
Thu, 23 Mar 2017, 5:22 PM
handling static contents with apache mod_cache_disk Picture of Julien Boulen Julien Boulen 0 Julien Boulen
Mon, 20 Mar 2017, 11:52 PM
Cron task making httpd irresponsive? Picture of Luca Bösch Luca Bösch 5 Paul Verrall
Mon, 20 Mar 2017, 5:41 PM
Moodle 3.2 - Memcached Session Handling PHP 7.0.9 Picture of Jeff White Jeff White 1 Mikhail Janowski
Fri, 17 Mar 2017, 5:10 PM
Moodle grader report editing extremely slow Picture of Debbie Unterseher Debbie Unterseher 18 Debbie Unterseher
Tue, 14 Mar 2017, 4:31 AM
Central Moodle instance sync to local instance - updated Picture of Paa Kwesi Paa Kwesi 14 Paa Kwesi
Mon, 13 Mar 2017, 7:00 PM
Hardware issues with Moodle Picture of Nduka S Okoye Nduka S Okoye 2 Howard Miller
Sun, 12 Mar 2017, 3:34 AM
Moodle For 10000 concurrency especially for Quiz Picture of Shyam Jadala Shyam Jadala 12 Shyam Jadala
Tue, 7 Mar 2017, 7:15 PM
Slow writing speed to Postgres Database Picture of Acs Gabor Acs Gabor 2 Acs Gabor
Wed, 1 Mar 2017, 8:07 PM
pluginfile.php performance and session locking Picture of Dominique LALOT Dominique LALOT 2 Dominique LALOT
Fri, 24 Feb 2017, 4:44 PM
Moodle Performance Issues (Load Balancer / Cluster) (Willing to Pay for Help) Picture of Amber Lynn Amber Lynn 14 Jorge Dávila López
Fri, 24 Feb 2017, 7:00 AM
Extreamly slow self-enrollment Picture of Marjan Milošević Marjan Milošević 1 Marjan Milošević
Fri, 24 Feb 2017, 5:38 AM
Proposal: Reduce session lock contention with opt-in READ_ONLY_SESSION Picture of Adam Eijdenberg Adam Eijdenberg 3 Tim Hunt
Wed, 22 Feb 2017, 6:35 AM
Problem of performance Picture of mimi nom mimi nom 4 mimi nom
Tue, 21 Feb 2017, 4:11 PM
Student Profile Data (Default) Not Updating Picture of Troy Fennell Troy Fennell 6 Troy Fennell
Sun, 19 Feb 2017, 11:06 AM
Event Monitoring Performance Picture of Michael Hughes Michael Hughes 10 dirk meyer
Thu, 16 Feb 2017, 9:28 PM
Can moodle serve huge numbers of users? Picture of Ahmed Ibrahim Ahmed Ibrahim 9 Dan Marsden
Wed, 15 Feb 2017, 4:44 AM
MongoDB: Invalid Plugin Picture of Douglas Rosa Douglas Rosa 2 Douglas Rosa
Thu, 9 Feb 2017, 10:23 PM
Network Latency and AWS Picture of Clarissa S Clarissa S 3 Howard Miller
Thu, 9 Feb 2017, 6:21 PM
JSON error when uploading a file Picture of David Bates David Bates 5 James McLean
Thu, 2 Feb 2017, 8:17 AM
moodle 3.x and bluehost shared hosting incompatibility? Picture of spyros zoup spyros zoup 16 Dan Rosenthal
Mon, 30 Jan 2017, 9:08 PM
Advice on moodle installation Picture of Mark Hamptom Mark Hamptom 2 Mathew Gancarz
Thu, 26 Jan 2017, 11:48 PM
Moodle 2.8.6 site running extremely slow Picture of Mark Baldwin Mark Baldwin 5 Dan Marsden
Mon, 23 Jan 2017, 7:10 AM
moodle 3.1: 10x slower than 3.0.2 Picture of Martin Alexander Martin Alexander 10 Juan Gabriel Edu Labs
Sat, 21 Jan 2017, 12:38 AM
mdl_cache_flags slow in LnP Picture of Charu Khamitkar Charu Khamitkar 2 Tomasz Muras
Wed, 18 Jan 2017, 4:13 PM
How to sync local installation of Moodle and installation on a server onine Picture of Paa Kwesi Paa Kwesi 4 Paa Kwesi
Tue, 17 Jan 2017, 11:07 PM
quiz for 150 students Picture of ziv izackov ziv izackov 9 ziv izackov
Mon, 16 Jan 2017, 11:34 PM
Performance Tuning and Load Testing Picture of Indresh Vishwakarma Indresh Vishwakarma 18 Ricardo Caiado
Fri, 13 Jan 2017, 11:48 PM
Web Server + Database selection/preferences (Apache, MySQL?MariaDB, Nginx, PostgreSQL) Picture of Jerry Lau Jerry Lau 6 Ricardo Caiado
Fri, 13 Jan 2017, 11:47 PM
How to increse apache 2 and mysql performance and howmany users can give exam at a time in my server Picture of lalit thakur lalit thakur 5 Ricardo Caiado
Fri, 13 Jan 2017, 11:44 PM
HTTPS redirect loop through CloudFlare services Picture of Omer Magill Omer Magill 1 Omer Magill
Tue, 10 Jan 2017, 8:05 AM
Server crash during chat wtih 2 other persons Moodle 2.4.3 Picture of Gary Lebowitz Gary Lebowitz 11 Emma Richardson
Fri, 6 Jan 2017, 9:01 PM
Software Version Vs. performance Question Picture of Mr. Marc Mr. Marc 2 Mr. Marc
Fri, 6 Jan 2017, 8:45 AM
Question about Redis Cluster Failover Picture of Jeff White Jeff White 0 Jeff White
Fri, 6 Jan 2017, 3:41 AM
MySQL CPU - Moodle Picture of A J A J 14 Howard Miller
Wed, 4 Jan 2017, 1:04 AM
memcached usage in clustered environment - replication questions Picture of Niels Hendriks Niels Hendriks 2 Niels Hendriks
Sun, 1 Jan 2017, 11:57 PM
Table partion in moodle Picture of vysakh b vysakh b 5 vysakh b
Wed, 28 Dec 2016, 8:38 PM
Sometimes, Moodle does not response (Internal Server Error) Picture of Huy Lam Huy Lam 1 Howard Miller
Sat, 24 Dec 2016, 7:45 PM
General Question about Moodle Implementation Picture of Alexander Canaan Alexander Canaan 3 Howard Miller
Fri, 23 Dec 2016, 7:08 PM
Moodle 2.9.4 Poor Performance as Admin user Picture of Gus Hagelberg Gus Hagelberg 8 Andreas Panagiotopoulos
Wed, 21 Dec 2016, 2:58 PM
Moodle on AWS - SSL Picture of Stefan Van De Velde Stefan Van De Velde 1 Jeff White
Fri, 16 Dec 2016, 11:17 PM
Problem with course restore Picture of Marian Kočenda Marian Kočenda 2 Jeff White
Fri, 16 Dec 2016, 10:43 PM
Moodle slow query Picture of Laboratorio Computacion Laboratorio Computacion 0 Laboratorio Computacion
Tue, 13 Dec 2016, 12:23 AM
how to design moodle server for 40,000 users Picture of com cen com cen 2 com cen
Mon, 12 Dec 2016, 11:21 PM
Long Loading Time After Login (TTFB) Picture of Uchendu Nwachukwu Uchendu Nwachukwu 5 Uchendu Nwachukwu
Mon, 12 Dec 2016, 8:42 PM
Problem at my Server Picture of Ali Arekat Ali Arekat 5 Emma Richardson
Thu, 8 Dec 2016, 4:05 AM
Maintaining large Log table Picture of Richard Flurey Richard Flurey 6 Zabelle Motte
Fri, 2 Dec 2016, 3:08 PM
Load testing - quiz Picture of Syed Ali Syed Ali 1 Howard Miller
Thu, 1 Dec 2016, 7:06 AM
Are Some Moodle installation in a local area network Picture of ari mardian ari mardian 8 Yani Sidi
Thu, 1 Dec 2016, 12:26 AM
Jmeter moodle 2.8 test Picture of Rama Gundabhat Rama Gundabhat 1 Ken Task
Wed, 30 Nov 2016, 11:13 PM
Problems with architecture You either love it or you hate it Albert Ramsbottom 10 Albert Ramsbottom
Wed, 30 Nov 2016, 5:44 PM
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