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
Performance issues when updating a record in Moodle 3.0.3 Picture of Luiz Peralba Luiz Peralba 0 Luiz Peralba
Fri, Sep 30, 2016, 4:03 AM
some page content speed is slow Picture of Anderson Hsu Anderson Hsu 4 Anderson Hsu
Thu, Sep 29, 2016, 10:02 PM
Specific areas of Moodle slow, others perform fine Picture of David Nelson David Nelson 3 David Nelson
Thu, Sep 29, 2016, 8:00 AM
SCORM editing activity slow Picture of Tom Kleintjens Tom Kleintjens 0 Tom Kleintjens
Wed, Sep 28, 2016, 11:00 PM
Hardware requirements Picture of Farhad Arshad Farhad Arshad 13 Farhad Arshad
Tue, Sep 27, 2016, 5:27 AM
performance problems solved in 3.1 Picture of Dominique LALOT Dominique LALOT 4 Dominique LALOT
Mon, Sep 26, 2016, 8:31 PM
Moving from Windows to Solaris Picture of Pedro Martins De Torre Pedro Martins De Torre 8 Howard Miller
Sat, Sep 24, 2016, 5:54 PM
How to recover Moodle from server crash? Picture of Allie Justice Allie Justice 1 Howard Miller
Fri, Sep 23, 2016, 6:26 AM
Local Moodle Website - System Configuration Picture of Dhananjay Sharma Dhananjay Sharma 19 Usman Asar
Sun, Sep 18, 2016, 5:07 AM
Splitting out to have the database in its own server Picture of Tammy Moore Tammy Moore 8 Howard Miller
Sun, Sep 18, 2016, 4:08 AM
My Moodle Site is very slow ?? Picture of Phương Nguyễn Phương Nguyễn 1 Visvanath Ratnaweera
Sat, Sep 17, 2016, 1:18 PM
Moodle on Bluehost? Picture of rockerz g rockerz g 13 Rick Jerz
Tue, Sep 13, 2016, 10:32 PM
Moodle running of Amazon EFS Picture of Christos Savva Christos Savva 2 Christos Savva
Tue, Sep 13, 2016, 2:47 PM
moodle connect speed Picture of Anderson Hsu Anderson Hsu 6 Anderson Hsu
Tue, Sep 13, 2016, 10:11 AM
Advice : AWS Capacity Planning for 20,000 concurrent users Picture of Sid Mad Sid Mad 13 Albert Ramsbottom
Mon, Sep 12, 2016, 11:09 PM
100 active users limit with 4vCPU Picture of Matej Zerovnik Matej Zerovnik 19 Howard Miller
Mon, Sep 12, 2016, 6:48 PM
Event Monitoring Fixed? Picture of Mark Chaney Mark Chaney 0 Mark Chaney
Wed, Sep 7, 2016, 10:49 PM
[Moodle BenchMark] Disappointing score (1945) for a two VM setup, 12 CPU and 112 GB RAM in total Picture of Daniel Tillman Daniel Tillman 5 Grant Mucha
Tue, Aug 30, 2016, 11:26 PM
[Moodle BenchMark] Need Beta-tester Picture of Mickaël PANNEQUIN Mickaël PANNEQUIN 53 Grant Mucha
Tue, Aug 30, 2016, 2:08 PM
What's the requirement specifications of a host needed to uplood moodle 3.1 with 3000 users Picture of Ahmed Samy Ahmed Samy 0 Ahmed Samy
Sun, Aug 28, 2016, 12:40 AM
Global Search with thousands of documents Picture of William Mair William Mair 0 William Mair
Fri, Aug 26, 2016, 8:25 PM
Cron Job questions Picture of Melissa Benson Melissa Benson 15 Paul L
Thu, Aug 25, 2016, 10:13 PM
System-wide performance Picture of John D. Black John D. Black 2 Visvanath Ratnaweera
Sat, Aug 20, 2016, 2:00 PM
Purge / flush memcached_store command line Mike Wilson Mike Wilson 4 Mike Wilson
Wed, Aug 17, 2016, 11:13 PM
optimizing mysql: tmpdir on tmpfs rui Rui Ruas 2 Tomasz Muras
Sat, Aug 13, 2016, 4:50 PM
Partitioning scheme for Ubuntu Server Picture of Ryan B Ryan B 8 Howard Miller
Sat, Aug 13, 2016, 3:08 PM
Server Overload Picture of vansh gulati vansh gulati 3 Visvanath Ratnaweera
Thu, Aug 11, 2016, 6:31 PM
MySQL database halts on course management load Picture of Ulrik McArdle Ulrik McArdle 5 Ulrik McArdle
Thu, Aug 11, 2016, 6:12 PM
Has Moodle become thrifty? Picture of Visvanath Ratnaweera Visvanath Ratnaweera 23 Visvanath Ratnaweera
Mon, Aug 8, 2016, 2:49 PM
hardware and software needs for a powerfull moodle server Picture of Gonzalo Pacheco Alvarez Gonzalo Pacheco Alvarez 4 Visvanath Ratnaweera
Mon, Aug 8, 2016, 2:27 AM
MySQL Database Master/slave replication and other thoughts Picture of Michael Hughes Michael Hughes 15 lital l
Tue, Aug 2, 2016, 4:58 PM
Adding quiz on course error she Sheryl Villaroman 0 Sheryl Villaroman
Tue, Aug 2, 2016, 8:55 AM
Apache best MPM: Prefork, Worker or Event Picture of Naaman Fallouh Naaman Fallouh 6 Visvanath Ratnaweera
Thu, Jul 28, 2016, 8:09 PM
To host or not to host a moodle site Picture of Teresa Fryer Teresa Fryer 24 Visvanath Ratnaweera
Thu, Jul 28, 2016, 12:52 PM
Performance Tip ... shared ... Picture of Ken Task Ken Task 1 Howard Miller
Sun, Jul 17, 2016, 6:56 PM
Moodle 2 is VERY SLOW - Staff are not happy! Picture of Michael Dean Michael Dean 21 Chris Taylor
Thu, Jul 14, 2016, 10:03 PM
I AM TERRIFIED : MOODLE IS VERY SLOW ! Picture of fleu risseur fleu risseur 24 Albert Ramsbottom
Thu, Jul 14, 2016, 9:35 PM
Event Monitoring Performance Picture of Michael Hughes Michael Hughes 9 Mark Chaney
Thu, Jul 14, 2016, 5:17 PM
my platform works very slow Picture of tasos dimopoulos tasos dimopoulos 3 Howard Miller
Thu, Jul 14, 2016, 5:30 AM
Debugging Debug report.... C'est Moi.... Steve Ambro v3.1 2 Steve Ambro v3.1
Mon, Jul 11, 2016, 8:16 PM
Redundant Moodle Application Picture of Matt Polaniecki Matt Polaniecki 4 Albert Ramsbottom
Mon, Jul 11, 2016, 7:11 PM
Load Testing Picture of Graham Stone Graham Stone 5 Michael Hughes
Tue, Jun 28, 2016, 6:18 PM
Suggestion on buying used server for home use Picture of snehasis pradhan snehasis pradhan 1 Howard Miller
Mon, Jun 27, 2016, 5:03 PM
increase session_data cache size for LMS users me Billy Zwiener 0 Billy Zwiener
Sat, Jun 25, 2016, 12:47 AM
Moodle for a school with around 3000 students Picture of sushumna rao sushumna rao 6 Howard Miller
Mon, Jun 20, 2016, 8:33 PM
Problems to load the Administration Section Picture of Fabian Belledi Fabian Belledi 3 Emma Richardson
Fri, Jun 17, 2016, 8:28 PM
moodle 3.1: 10x slower than 3.0.2 Picture of Martin Alexander Martin Alexander 9 Mark Pearson
Fri, Jun 10, 2016, 12:15 AM
"Memcache" cache store what data is cached? Picture of Thorsten Bieser Thorsten Bieser 4 Thorsten Bieser
Thu, Jun 9, 2016, 8:51 PM
PHP5 32bit vs 64bit performance on windows 64 bit server Picture of Paul L Paul L 4 Paul L
Thu, Jun 9, 2016, 12:56 AM
'smallest moodle 2.3 server' Picture of George Varghese George Varghese 6 George Varghese
Wed, Jun 8, 2016, 1:58 PM
Can jMeter Testing of a Moodle - LDAP Authentication Picture of Ken Task Ken Task 3 Ken Task
Wed, Jun 8, 2016, 4:19 AM
Strange NFS problem in rare case of deleting/creating same file Picture of sam marshall sam marshall 6 Albert Ramsbottom
Thu, May 26, 2016, 6:49 PM
Session Partition full and File store path not exist Picture of R Ali R Ali 4 Just H
Sun, May 22, 2016, 7:12 PM
Opcache errors in Windows Event Viewer - how to prevent? Picture of Perry Way Perry Way 7 Usman Asar
Thu, May 19, 2016, 1:21 AM
Help with weird PHP-FPM nginx behavior Picture of Jorge Villalon Jorge Villalon 2 Jorge Villalon
Tue, May 17, 2016, 7:41 PM
Opcache question from NON technical user. M2.73 Picture of Dom F Dom F 13 Mark Sharp
Fri, May 13, 2016, 5:05 PM
siteidentifier is NULL Picture of Jeff White Jeff White 0 Jeff White
Thu, May 12, 2016, 11:02 PM
Partial load of Moodle pages Picture of Hittesh Ahuja Hittesh Ahuja 2 Tim Hunt
Thu, May 12, 2016, 3:23 AM
Really Slow Quiz Picture of Jessica Tranter Jessica Tranter 11 Jessica Tranter
Wed, May 11, 2016, 6:52 AM
Database read error when user try to login... Ricardo Caiado Ricardo Caiado 3 Ricardo Caiado
Wed, May 11, 2016, 5:39 AM
Login for anyone takes a long time - after upgrade Picture of David White David White 25 Howard Miller
Tue, May 10, 2016, 8:19 PM
Moodle 2.6 Apache Event MPM Picture of Juan C. Juan C. 1 Paul Verrall
Mon, May 9, 2016, 4:00 PM
How to load balancing moodle Picture of Doan Dung Doan Dung 6 Albert Ramsbottom
Mon, May 9, 2016, 3:54 PM
Adelani Adekunle - Moodle made my System slow Picture of Adelani Adekunle Adelani Adekunle 3 Adelani Adekunle
Sun, May 8, 2016, 12:58 AM
Preferred php handler for large moodle site Picture of Farhan Karmali Farhan Karmali 8 Mark Sharp
Fri, May 6, 2016, 3:31 PM
Archiving Completed Students - grades, files, results Picture of Dan Logan Dan Logan 0 Dan Logan
Fri, May 6, 2016, 9:27 AM
trying to preview in a proxy but getting some weird behavior. Is this normal of a proxy? me Billy Zwiener 0 Billy Zwiener
Sat, Apr 30, 2016, 11:59 AM
How might I go about purging huge tables/ can I delete quiz attempts PAST a certain date only? me Billy Zwiener 3 Tim Hunt
Thu, Apr 28, 2016, 6:11 AM
Crashing under increased activity... But not a lot ... 20 users maybe at the same time? me Billy Zwiener 6 Billy Zwiener
Wed, Apr 27, 2016, 9:35 AM
Blank page returned when i access by admin Picture of Doan Dung Doan Dung 2 Doan Dung
Wed, Apr 27, 2016, 9:09 AM
Moodle data folder on a shared ntfs volume Wellingtonia Tree Heather P 13 Ken Task
Tue, Apr 26, 2016, 12:09 AM
When to build a server cluster for Moodle (with examples)? Picture of Visvanath Ratnaweera Visvanath Ratnaweera 12 Luis de Vasconcelos
Mon, Apr 25, 2016, 9:19 PM
How have people spec'd thier environment? Picture of John Rickard John Rickard 1 Heather P
Wed, Apr 20, 2016, 11:09 PM
Performance of Moodle site Picture of Rajakumar Jillella Rajakumar Jillella 2 Visvanath Ratnaweera
Wed, Apr 20, 2016, 3:39 PM
Disk space, duplicate? Picture of Chris Swaffield Chris Swaffield 3 Albert Ramsbottom
Thu, Apr 14, 2016, 9:12 PM
Microsoft Azure Encyption You either love it or you hate it Albert Ramsbottom 4 Albert Ramsbottom
Thu, Apr 14, 2016, 4:14 PM
Advice on preferred hardware setup for upgrade and cloud use Picture of Jerry Lau Jerry Lau 9 Visvanath Ratnaweera
Sat, Apr 9, 2016, 11:08 PM
Amazon AWS You either love it or you hate it Albert Ramsbottom 12 Albert Ramsbottom
Fri, Apr 8, 2016, 4:36 PM
Very Large Moodle Installation Picture of Greg Shaw Greg Shaw 4 Albert Ramsbottom
Wed, Apr 6, 2016, 8:48 PM
Filesystem recommendations for cross-network HA setup? Picture of Brad Smith Brad Smith 20 Albert Ramsbottom
Wed, Apr 6, 2016, 8:28 PM
How do I prune mdl_log table? Picture of Sean McKay Sean McKay 10 Mark Sharp
Wed, Apr 6, 2016, 5:10 PM
High CPU when Loading SCORM (in the deep end) Picture of Simon Harbinson Simon Harbinson 8 Visvanath Ratnaweera
Wed, Apr 6, 2016, 3:19 PM
Nginx + Moodle configuration tips Picture of Jon Langevin Jon Langevin 5 Howard Miller
Sun, Mar 27, 2016, 6:51 PM
Moodle 2.9.4 Poor Performance as Admin user Picture of Gus Hagelberg Gus Hagelberg 7 Raju Adla
Thu, Mar 10, 2016, 2:46 PM
system monitoring Picture of dima maksoud dima maksoud 2 dima maksoud
Thu, Mar 10, 2016, 1:41 PM
The site is getting slower and slower for admin and teachers? Picture of Frankle Lee 李智高 Frankle Lee 李智高 8 Visvanath Ratnaweera
Wed, Mar 9, 2016, 6:28 AM
Copying Production Moodledata to Dev Brought Down Production. Picture of Jeff White Jeff White 7 Jeff White
Mon, Mar 7, 2016, 11:01 PM
Fallview Capital - Hardware issues with Moodle Picture of Marty Mittelman Marty Mittelman 2 Usman Asar
Sun, Mar 6, 2016, 10:44 PM
Moodle Clustering Picture of Jay Sharpe Jay Sharpe 25 Mikko K
Thu, Mar 3, 2016, 8:51 PM
Performance of the Assignment tool Tim at Lone Pine Koala Sanctuary Tim Hunt 0 Tim Hunt
Tue, Mar 1, 2016, 1:23 AM
Moodle 3 - Recent conversations Picture of mimi nom mimi nom 4 Andrew Nicols
Sun, Feb 28, 2016, 7:13 PM
Moodle & PHP 7.0 (RC4) - Performance Retake Picture of Usman Asar Usman Asar 10 Usman Asar
Sat, Feb 27, 2016, 12:28 AM
Moodle Connection Time Out Issue Picture of N B N B 6 C Behan
Fri, Feb 26, 2016, 7:44 PM
How many cache lock instances must be created when caching with memcached? Picture of David Ordóñez David Ordóñez 4 Paul Verrall
Fri, Feb 26, 2016, 7:09 PM
my web very slow Picture of mo1 jo mo1 jo 4 jen baker
Thu, Feb 25, 2016, 2:25 PM
Moodle on Windows/IIS/MS SQL - known issues ? Picture of Angelin Lalev Angelin Lalev 23 Visvanath Ratnaweera
Sun, Feb 21, 2016, 4:18 AM
Need help understanding XHProf analysis Picture of Alexandre Leveille Alexandre Leveille 1 Tim Hunt
Wed, Feb 17, 2016, 6:15 AM
Munin plugin for Moodle Picture of Ruslan Kabalin Ruslan Kabalin 19 Arnaud TROUVE
Mon, Feb 15, 2016, 8:23 PM
Moodle 3.0 very slow on IIS Picture of josh vonhauger josh vonhauger 3 Howard Miller
Mon, Feb 15, 2016, 6:19 PM
Moodle disconnects during chat Picture of Teresa Fryer Teresa Fryer 2 Visvanath Ratnaweera
Sat, Feb 13, 2016, 4:13 AM
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