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
Event Monitoring Performance Picture of Michael Hughes Michael Hughes 8 Paula Ardanza
Tue, Jul 28, 2015, 12:12 AM
ClamAV on Centos7 Picture of Web HEP Web HEP 7 Jarno Huuskonen
Mon, Jul 27, 2015, 6:50 PM
IIS Server clustering You either love it or you hate it Albert Ramsbottom 7 Albert Ramsbottom
Wed, Jul 22, 2015, 11:50 PM
memcached Store not ready Picture of Peter Dorman Peter Dorman 6 Valery Fremaux
Wed, Jul 22, 2015, 11:50 PM
Munin plugin for Moodle Picture of Ruslan Kabalin Ruslan Kabalin 7 Arnaud TROUVE
Wed, Jul 22, 2015, 11:36 PM
Login 1000 student at a time on one quiz Picture of Lalit Thakur Lalit Thakur 24 Albert Ramsbottom
Fri, Jul 17, 2015, 10:28 PM
How to perform SQL MDF File Repair task? Picture of john marshall john marshall 4 John Walker
Thu, Jul 16, 2015, 1:22 PM
deleting archived courses from moodledata Picture of Steven Silvern Steven Silvern 11 Steven Silvern
Thu, Jul 16, 2015, 1:13 AM
Chrome Device issues (v2.4.0) Picture of Constance Horne Constance Horne 1 Constance Horne
Wed, Jul 15, 2015, 1:26 AM
problem on the mdl_grade_grades_category moodle 2.8, high cpu use in my server of databases. Picture of Eduardo Miranda Eduardo Miranda 2 Howard Miller
Tue, Jul 14, 2015, 6:00 PM
Moodle Cloud (split from ancient thread) Picture of Samantha Gartner Samantha Gartner 0 Samantha Gartner
Mon, Jul 13, 2015, 10:30 AM
Moodle 2.8.1. Server Cluster configuration. Apache Crashing with "exit signal Bus error (7)" Picture of José Antonio Omedes Capdevila José Antonio Omedes Capdevila 20 Matteo Scaramuccia
Fri, Jul 10, 2015, 4:10 AM
Transitioning to SSL network encryption on MySQL servers Picture of Rebecca O'Connell Rebecca O'Connell 4 James McLean
Wed, Jul 8, 2015, 2:01 PM
Memcached Picture of Mr Blue Mr Blue 7 Mr Blue
Mon, Jul 6, 2015, 11:19 PM
OPCode cache Picture of Kevin Burton Kevin Burton 18 Howard Miller
Fri, Jul 3, 2015, 6:18 PM
Moodle Resources Picture of Shyam S Shyam S 8 Visvanath Ratnaweera
Wed, Jul 1, 2015, 11:43 PM
Can't seem to get sessions saved in memcached Picture of Matej Zerovnik Matej Zerovnik 11 Tony Box
Fri, Jun 26, 2015, 1:44 AM
Load testing V2.8.x Picture of Constance Horne Constance Horne 3 Jeff White
Wed, Jun 24, 2015, 9:56 PM
Load Test reveals Access Errors - fonts.gstatic.com (v2.8.4) Picture of Constance Horne Constance Horne 3 Constance Horne
Tue, Jun 23, 2015, 10:38 PM
Memcached! You either love it or you hate it Albert Ramsbottom 4 Albert Ramsbottom
Tue, Jun 23, 2015, 9:01 PM
An update on cache landscape (Linux-based) Picture of Visvanath Ratnaweera Visvanath Ratnaweera 14 Albert Ramsbottom
Tue, Jun 23, 2015, 7:21 PM
Deploying Moodle on HP Proliant Server Picture of Chris Ekin Chris Ekin 5 Tim Hunt
Tue, Jun 23, 2015, 6:52 AM
V2.8.x - How to delete all course participation details Picture of Constance Horne Constance Horne 2 Constance Horne
Tue, Jun 23, 2015, 3:31 AM
mdl_sessions and memcached Picture of jerrett fowler jerrett fowler 3 James McLean
Mon, Jun 22, 2015, 6:58 AM
Is Nested Trigger required to be enabled for Moodle? Picture of Johnny Lo Johnny Lo 2 Johnny Lo
Wed, Jun 17, 2015, 11:38 PM
My moodle website is too slow Picture of darajeur darajeur darajeur darajeur 7 fahid hasan
Wed, Jun 17, 2015, 12:34 PM
Hosting & file storage in separate locations Picture of Tony Cunningham Tony Cunningham 3 Jacov Mostovicz
Tue, Jun 16, 2015, 1:46 AM
Moodle and PHP 7.x Picture of Usman Asar Usman Asar 2 Usman Asar
Sun, Jun 14, 2015, 7:07 AM
JavaScript being called early Picture of Tzvi Daum Tzvi Daum 3 Tzvi Daum
Sat, Jun 13, 2015, 3:48 AM
MUC You either love it or you hate it Albert Ramsbottom 8 Albert Ramsbottom
Fri, Jun 12, 2015, 7:12 PM
Moodle slow with admin settings Picture of Federica Marra Federica Marra 3 Federica Marra
Thu, Jun 11, 2015, 9:48 PM
Investigating excessive(?) DB hits Picture of Brad Smith Brad Smith 3 Brad Smith
Thu, Jun 11, 2015, 6:31 AM
Events queue huge Picture of Conn Warwicker Conn Warwicker 7 Conn Warwicker
Wed, Jun 10, 2015, 5:33 PM
Unable to edit quiz after upgrade from 2.7.3+ to 2.8.1+ Picture of Joe Chapman Joe Chapman 38 Pavel Chelyadinov
Wed, Jun 10, 2015, 3:15 PM
MySQL InnoDB_file_format setting: Antelope or Barracuda? Picture of Calvin Bu Calvin Bu 3 Mathew Gancarz
Thu, Jun 4, 2015, 9:59 PM
Moodle Slow, Resources Great, what could be the problem Picture of Paul L Paul L 2 Paul L
Thu, Jun 4, 2015, 7:31 PM
Scheduled tasks - Log cleanup Picture of Gerald Albion Gerald Albion 1 Howard Miller
Thu, Jun 4, 2015, 12:53 AM
Moodle site became very slow after upgrading to 2.8.5 Picture of Garamkhand Surendelg Garamkhand Surendelg 8 Albert Ramsbottom
Wed, Jun 3, 2015, 12:09 AM
Decentralized Course Materials Picture of Calvin Vong Calvin Vong 4 Rick Jerz
Tue, Jun 2, 2015, 4:33 AM
Moodle Crashing Every Night Picture of Scott Tolan Scott Tolan 15 Jeff White
Fri, May 29, 2015, 2:17 AM
Need cheap moodle hosting provider Picture of deby williams deby williams 1 Howard Miller
Tue, May 26, 2015, 6:01 PM
Contradictory doc on cron jobs for web cluster Picture of Job Cespedes Job Cespedes 1 Howard Miller
Tue, May 26, 2015, 1:31 PM
Hosting on site versus Out Sourcing Picture of Paul Langdon Paul Langdon 5 Visvanath Ratnaweera
Sat, May 23, 2015, 3:17 AM
I/O Needs in a Split System Picture of Rick Venuto Rick Venuto 9 Visvanath Ratnaweera
Thu, May 21, 2015, 12:10 AM
10 Mini-PCs With Pre-Installed Linux Picture of Visvanath Ratnaweera Visvanath Ratnaweera 11 Visvanath Ratnaweera
Mon, May 18, 2015, 8:18 PM
Moodle very slow on local Windows high end laptop Picture of Michel DENIS Michel DENIS 8 Michel DENIS
Sun, May 17, 2015, 4:40 PM
Load Testing Picture of Graham Stone Graham Stone 4 Jeff White
Thu, May 14, 2015, 9:08 PM
Which one best moodle hosting server in the world ? Picture of Kathir Rajaraman Kathir Rajaraman 9 Fahad Rafiq
Wed, May 6, 2015, 7:51 PM
Moodle MySQL overload error Picture of Alejandro Calderón Alejandro Calderón 8 Alejandro Calderón
Wed, May 6, 2015, 1:13 AM
Moodle Very slow for users who are not administrators Picture of Cristian Matos Cristian Matos 5 Cristian Matos
Tue, May 5, 2015, 10:43 PM
Is there a solution to moodle's chat heavyness? Picture of Nuno Pinto Nuno Pinto 5 Visvanath Ratnaweera
Tue, May 5, 2015, 2:26 PM
Moodle Delayed Replication Mirror Site Picture of Zach M. Zach M. 7 jason everling
Sat, May 2, 2015, 12:38 AM
Setting Up Memcache with transparent session failover Picture of Jeff White Jeff White 2 Jeff White
Fri, May 1, 2015, 9:57 PM
Share us your help and experience Picture of zizo zizo zizo zizo 2 Usman Asar
Fri, May 1, 2015, 2:49 AM
quiz records error? Picture of Tzafi Z Tzafi Z 1 Howard Miller
Thu, Apr 30, 2015, 6:04 PM
fatal error with memcache.php Picture of Andy Taggart Andy Taggart 1 Howard Miller
Wed, Apr 22, 2015, 4:54 PM
Server Requirement Picture of Mohammad Talat Mohammad Talat 3 Seth Mengal
Tue, Apr 21, 2015, 8:19 PM
NewRelic RPM & Moodle Errors / Issues Picture of Seth Mengal Seth Mengal 1 James McLean
Tue, Apr 21, 2015, 10:04 AM
PHP memory Picture of Rama Gundabhat Rama Gundabhat 12 Ken Task
Sat, Apr 18, 2015, 8:29 AM
Setting memcache as default Picture of Andy Taggart Andy Taggart 7 Andy Taggart
Fri, Apr 17, 2015, 3:35 PM
Moodle system requirements online checking tool for students? Picture of Usman Arshad Usman Arshad 5 kany adrew
Wed, Apr 15, 2015, 11:21 PM
quiz on moodle 2.4 slow Picture of Maram Alsafarini Maram Alsafarini 4 Maram Alsafarini
Tue, Apr 14, 2015, 12:56 PM
Change filedir folder. Picture of Oh ByeongJoo Oh ByeongJoo 0 Oh ByeongJoo
Tue, Apr 14, 2015, 9:52 AM
Cron Job questions Picture of Melissa Benson Melissa Benson 10 Mark Sharp
Mon, Apr 13, 2015, 4:19 PM
Externally hosted database server as backend (Backup) in moodle Picture of Parth Patel Parth Patel 4 Usman Asar
Thu, Apr 9, 2015, 6:04 PM
I AM TERRIFIED : MOODLE IS VERY SLOW ! Picture of fleu risseur fleu risseur 17 Michael Milette
Tue, Apr 7, 2015, 10:18 PM
Question about using Xcache with Moodle 2.8 BobBl Robert Blomeyer 1 Matteo Scaramuccia
Sat, Apr 4, 2015, 2:05 PM
HOW to build a production site "hyper-fast, simple, non-explosive" Picture of fleu risseur fleu risseur 1 Usman Asar
Fri, Apr 3, 2015, 10:09 PM
Maintaining large Log table Picture of Richard Flurey Richard Flurey 0 Richard Flurey
Thu, Apr 2, 2015, 4:27 PM
Increase in disk space usage in 2.2 to 2.7 upgrade Picture of Walter Horowitz Walter Horowitz 7 Walter Horowitz
Thu, Apr 2, 2015, 12:42 AM
Error: MySQL server has gone away Picture of Maknus Kowalski Maknus Kowalski 4 Howard Miller
Mon, Mar 30, 2015, 8:18 PM
Re: Active participants (split from New to Moodle can it do?) Picture of Usman Asar Usman Asar 7 Mary Cooch
Mon, Mar 30, 2015, 2:54 PM
Quiz for moodle 2.2--- documents content no data Picture of Maram Alsafarini Maram Alsafarini 2 Visvanath Ratnaweera
Sun, Mar 29, 2015, 6:08 PM
Repeated flood of requests causes all database connections to be used up? Picture of Mathew Gancarz Mathew Gancarz 6 Howard Miller
Sat, Mar 28, 2015, 6:38 PM
Performance issue on dropbox repository's cron Picture of Jordi Pujol-Ahulló Jordi Pujol-Ahulló 3 Jordi Pujol-Ahulló
Wed, Mar 25, 2015, 8:32 PM
NFS and Memcached configuration (clustering preparation) Picture of heli guy heli guy 4 heli guy
Tue, Mar 24, 2015, 5:48 PM
Memcache issues after recent security patches Picture of sam marshall sam marshall 1 sam marshall
Fri, Mar 20, 2015, 1:43 AM
Cache problem Picture of Wissam Nahas Wissam Nahas 1 Howard Miller
Wed, Mar 18, 2015, 10:40 PM
Zip Performance in Moodle Picture of Dale Davies Dale Davies 1 Howard Miller
Tue, Mar 17, 2015, 7:45 PM
Very slow course participation reports Picture of Josef Fortier Josef Fortier 3 Jay Liotta
Tue, Mar 17, 2015, 2:21 AM
Really slow logon Picture of Stuart Hector Stuart Hector 7 Howard Miller
Sun, Mar 15, 2015, 6:08 PM
Moodle application / sql locks Picture of Luis Pinheiro Luis Pinheiro 1 Visvanath Ratnaweera
Fri, Mar 13, 2015, 6:40 AM
Upgrading MySQL 5.1 to 5.5 , configuration setting changes? Picture of Paul L Paul L 9 Przemek Kaszubski
Thu, Mar 12, 2015, 11:18 PM
Moodle Connection Time Out Issue Picture of N B N B 2 Przemek Kaszubski
Thu, Mar 12, 2015, 10:20 PM
The coming of HTTP/2 Picture of Ken Task Ken Task 4 Andrew Nicols
Thu, Mar 12, 2015, 8:56 AM
Assignment Uploads Slow in Moodle 2.7 Picture of IronHorse University IronHorse University 3 heli guy
Wed, Mar 11, 2015, 2:17 PM
Migrating from a linux to a windows server Picture of Eric Miletich Eric Miletich 11 Stuart Hector
Wed, Mar 11, 2015, 7:36 AM
Surface Pro 3 touch pad, not able to move activities Picture of Annette Knobloch Annette Knobloch 2 Andrew Nicols
Mon, Mar 9, 2015, 7:55 AM
File or Database Sessions? Picture of Marcus Green Marcus Green 6 Mark Picker
Wed, Mar 4, 2015, 1:44 PM
Memcached Moodle site still DB row locking Picture of jerrett fowler jerrett fowler 6 jerrett fowler
Tue, Mar 3, 2015, 9:03 PM
Moodle based on Postgres-XC Picture of David Paniagua Ruano David Paniagua Ruano 0 David Paniagua Ruano
Mon, Mar 2, 2015, 5:32 PM
Hosted webspace on 1&1 germany doesn't support all moodle features Picture of Ralf Hilgenstock Ralf Hilgenstock 6 Howard Miller
Sun, Mar 1, 2015, 6:52 PM
installation moodle Picture of joss micheal joss micheal 7 joss micheal
Fri, Feb 27, 2015, 7:30 PM
course-completion-report Picture of Rolf Petersen Rolf Petersen 4 jason white
Fri, Feb 27, 2015, 4:50 PM
How to simulate user do quiz multi choice use Jmeter ! Picture of Tran The A n Tran The A n 9 Faisal Jamil
Wed, Feb 25, 2015, 3:03 PM
jMeter and Quizzes Picture of Jason Cameron Jason Cameron 4 Faisal Jamil
Mon, Feb 23, 2015, 6:54 PM
Synchronize user pictures Picture of Luke Baker Luke Baker 3 Jon Witts
Wed, Feb 11, 2015, 5:35 AM
pluginfile.php performance problem Picture of Phil Loaiza Phil Loaiza 20 Troels Bugge
Tue, Feb 10, 2015, 4:43 PM
Needs Assesment Me, Myself and I Eric Guedegbe 3 Mary Cooch
Tue, Feb 10, 2015, 5:21 AM
Moodle course page slow only with Firefox Picture of Hittesh Ahuja Hittesh Ahuja 12 Hittesh Ahuja
Mon, Feb 9, 2015, 8:12 PM
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