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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.

List of discussions. Showing 100 of 3216 discussions
Status	Discussion	Started by	Last post	Replies	Actions
	PgBouncer Pooling Type Locked	Mohd Shukri Hadafi Md Nor 14 Nov 2020	Mohd Shukri Hadafi Md Nor 14 Nov 2020	0
	Persistent Moodle Live-DVD Locked	Max De Mendizábal 9 June 2008	kenneth wyrick 17 Feb 2009	3
	Periodic slowdowns on AWS Locked	Chris Fryer 18 May 2021	Alex Rowe 25 May 2021	5
	perfparse.pl updated to support Moodle 2.x Locked	Dan Poltawski 30 Sept 2011	Dan Poltawski 30 Sept 2011	0
	Performence problem in 2.4 Locked	Sigal Rashba 4 Jan 2015	Howard Miller 5 Jan 2015	1
	performances on average web hosting Locked	fabrizio montanari 21 Nov 2011	Visvanath Ratnaweera 30 Nov 2011	4
	Performancee statistics Locked	Juan Daniel Burró Aláez 28 May 2020	Juan Daniel Burró Aláez 12 June 2020	4
	Performance: zip, unzip and du beginner query Locked	Jenny Toller 30 June 2006	Helio Rocha 10 July 2006	3
	performance: normal load + quiz + grading assignments Locked	Justin Haaga 18 Nov 2008	Jared Chapman 23 Mar 2013	38
	Performance: I just call... Locked	Maik Riecken 28 Oct 2007	Petrus 4 21 Feb 2009	7
	performance with mysqltuner Locked	mimi nom 19 Feb 2019	Ken Task 20 Feb 2019	2
	Performance with Ajax Locked	Daniel Lombardo 30 Nov 2013	Daniel Lombardo 30 Nov 2013	0
	Performance with 2500 concurrent users Locked	Stephen Tod 18 Apr 2019	Howard Miller 21 Apr 2019	5
	Performance with > one admin user logged in Locked	Charlie Lindahl 28 Aug 2005	Charlie Lindahl 28 Aug 2005	0
	Performance under heavy load Locked	Al-Ayham Saleh 3 Jan 2003	Martin Dougiamas 11 Jan 2003	7
	Performance tuning tips for tuning a VM Locked	Scott Karren 12 Dec 2008	Scott Karren 12 Dec 2008	2
	Performance tuning Moodle on Windows/IIS with Output Caching Locked	Luis de Vasconcelos 22 Sept 2011	Luis de Vasconcelos 22 Sept 2011	0
	Performance Tuning and Load Testing Locked	Indresh Vishwakarma 26 Oct 2016	Ricardo Caiado 13 Jan 2017	18
	Performance trouble on win2003. Locked	Kuno Woudt 6 Oct 2004	Kuno Woudt 25 Oct 2004	2
	Performance Tip ... shared ... Locked	Ken Task 17 July 2016	Howard Miller 17 July 2016	1
	Performance testing! Locked	Janne Mikkonen 15 Sept 2003	David Delgado 16 Sept 2003	6
	performance testing with apache benchmark and logins Locked	Cathal O'Riordan 22 Feb 2012	Alex DePena 25 Feb 2012	4
	Performance testing of Moodle 2.6.1 Locked	CP Lau 11 June 2014	CP Lau 11 June 2014	1
	Performance testing for framework cost only Locked	David Ackerman 29 July 2011	Visvanath Ratnaweera 5 Aug 2011	3
	Performance Testing Locked	Marco Marco 22 Feb 2023	Visvanath Ratnaweera 23 Feb 2023	1
	Performance stuck in 250 Concurrent request / second Locked	Pupil Senpro 26 May 2017	Abbie Abbey 30 May 2017	7
	Performance slow in moodle 1.9 Locked	dhileep s 15 Nov 2011	Josu Lazkano 16 Nov 2011	3
	Performance Slow Down when 20 or more users login Locked	sheikh usman 5 Apr 2020	Visvanath Ratnaweera 5 Apr 2020	2
	performance problems with chat.... Locked	Rodrigo Smarzaro 3 June 2005	Rodrigo Smarzaro 6 June 2005	5
	Performance problems with 50 concurrent users Locked	Harmeet Saini 13 Jan 2010	Howard Miller 26 Jan 2010	3
	performance problems solved in 3.1 Locked	Dominique LALOT 20 Sept 2016	Dominique LALOT 26 Sept 2016	4
	Performance problems Moodle 1.9 vs. 2.0 Locked	Max Österman 28 Jan 2011	Daniel Nelson 26 Mar 2011	7
	Performance problems in Moodle 2.3 Locked	Esteban Sánchez 13 Nov 2012	Esteban Sánchez 15 Nov 2012	9
	Performance problems and how we solved Locked	Jose' Coelho 4 Oct 2008	Jose' Coelho 14 Nov 2008	9
	Performance problemas with large mdl_log Locked	Ewout ter Haar 26 Nov 2010	Ewout ter Haar 30 Nov 2010	2
	performance problem on a server with a fresh moodle install Locked	maxime drouet 13 Apr 2006	maxime drouet 14 Apr 2006	4
	Performance problem leading to complete crash.. ON A SUPERCOMPUTER Locked	Etan Lightstone 31 Oct 2006	Ronnie Brito 1 Nov 2006	5
	Performance Problem in Moodle 1.9 Locked	Haris Siempos 26 Feb 2008	Matt Gibson 3 Mar 2008	6
	Performance problem in deploying Moodle using LAN based server Locked	Mehwish Leghari 6 Oct 2010	Cesar Sanchez 7 Oct 2010	7
	Performance problem due to mdl_cache_text table? Locked	Etan Lightstone 6 Aug 2005	Etan Lightstone 6 Aug 2005	0
	Performance perspectives - a little script Locked	sam marshall 25 Oct 2006	Najeeb Haider Zaidi 4 Sept 2015	91
	Performance on high demand Locked	Alejandro Brude 18 Mar 2020	Alejandro Brude 18 Mar 2020	0
	Performance on Dreamhost VPS Locked	Jorge Ballesteros 12 Sept 2013	Usman Asar 22 Sept 2013	6
	Performance of the Assignment tool Locked	Tim Hunt 1 Mar 2016	Tim Hunt 1 Mar 2016	0
	Performance of Settings block displaying Locked	Igor Kazakov 8 Apr 2013	Igor Kazakov 9 Apr 2013	2
	Performance of Moodle site Locked	Rajakumar Jillella 20 Apr 2016	Visvanath Ratnaweera 20 Apr 2016	2
	Performance of modle Locked	Jader Menezes 6 June 2008	Visvanath Ratnaweera 16 June 2008	1
	Performance of count_submissions_need_grading Locked	Alex Rowe 23 Oct 2020	Alex Rowe 29 Oct 2020	7
	Performance logging. Locked	Pieterjan Heyse 15 Sept 2005	Pieterjan Heyse 16 Sept 2005	1
	Performance Issues with Moodle 1.4.3 Locked	Mark Davies 30 June 2005	Miles Tillinger 3 July 2005	7
	Performance issues with course overview + memcached Locked	Ellio Mourinho 5 Sept 2014	Dan Marsden 22 Sept 2014	8
	Performance issues with a fresh 1.9 install Locked	Kent Villard 4 Sept 2008	Tim Hunt 26 Sept 2008	4
	Performance issues when updating a record in Moodle 3.0.3 Locked	SECOMV EMARF 30 Sept 2016	SECOMV EMARF 4 Oct 2016	7
	Performance issues on clustered environment Locked	Red Nano 22 Dec 2021	Red Nano 6 Jan 2022	13
	Performance issues in 1.8 (Stay 1.8 or revert to 1.6) Locked	Oliver Dowler 4 Sept 2007	A. T. Wyatt 3 Oct 2007	10
	Performance issues Locked	Sonja Sperber 17 Nov 2015	Paul Verrall 20 Nov 2015	10
	Performance Issue with User Enrollment Count in High-Concurrency Moodle Site	Mohamed Atia 19 June 2023	Dan Marsden 20 June 2023	4
	Performance issue with 2.0 Locked	Laurent Michel 24 Feb 2011	Frankie Kam 24 Feb 2011	1
	Performance issue over WAN Locked	vedkumar gupta 26 July 2013	vedkumar gupta 26 July 2013	0
	performance issue on moodle Locked	Richard Chiha 21 Jan 2013	Howard Miller 22 Jan 2013	4
	Performance issue on mod assign grading using separate groups Locked	Susana L. 4 Nov 2021	Susana L. 5 Nov 2021	2
	Performance issue on dropbox repository's cron Locked	Jordi Pujol-Ahulló 20 Mar 2015	Jordi Pujol-Ahulló 25 Mar 2015	3
	Performance Issue	George Chrysostomou 11 Dec 2023	Visvanath Ratnaweera 11 Dec 2023	2
	performance issue Locked	reza rony 30 Nov 2017	Howard Miller 30 Nov 2017	1
	Performance issue Locked	Jacqui C 24 Sept 2014	Visvanath Ratnaweera 24 Sept 2014	1
	Performance information from newrelic. Locked	Sebastian Mantilla 3 Oct 2020	Sebastian Mantilla 23 Oct 2020	2
	Performance in the VARIABLES section of Administrator Locked	Charlie Lindahl 28 Aug 2005	Martín Langhoff 28 Aug 2005	1
	Performance in the User List Locked	Charlie Villa 18 Nov 2022	Mary Cooch 18 Nov 2022	4
	Performance impact of user profile images? Locked	David Scotson 4 Jan 2013	David Scotson 9 Jan 2013	4
	Performance hit on 2.5 upgrade for admin users Locked	John Porten 20 June 2013	Guillermo Madero 30 Aug 2013	8
	Performance for quizzes Locked	Julie Voce 18 Apr 2007	Visvanath Ratnaweera 18 Apr 2007	1
	Performance for external database enrolment Locked	Ângelo Rigo 23 Sept 2008	Ângelo Rigo 23 Sept 2008	0
	performance for 2.4 moodle Locked	Richard Chiha 26 Feb 2013	Visvanath Ratnaweera 3 Mar 2013	1
	Performance fix for language menu Locked	Martín Langhoff 11 Apr 2005	Martín Langhoff 11 Apr 2005	0
	Performance experiences Locked	chris snow 18 Feb 2004	chris snow 18 Feb 2004	0
	Performance evaluation (suggestions) Locked	Aroldo Barroso 7 June 2021	Aroldo Barroso 9 June 2021	13
	Performance dropped instant Locked	Darren Evans 17 June 2021	Visvanath Ratnaweera 20 June 2021	5
	Performance change category Locked	casual 2k 14 Apr 2023	casual 2k 19 Apr 2023	3
	Performance brain-pick	Dorian C 29 July 2023	Ken Task 30 July 2023	7
	Performance blues Locked	Paul Johnson 5 Dec 2004	Genner Cerna 11 Dec 2004	19
	Performance and Stress Testing Questions Locked	Wolf Ventir 9 June 2012	Cathal O'Riordan 20 June 2012	9
	Performance - simultaneous exams etc	James Steerpike 16 July 2023	Howard Miller 18 July 2023	4
	Perfomance impact of statistics activation on an old installation of Moodle 3.10+	Juan Bautista Sartorio 26 July 2023	Sergio Rabellino 26 July 2023	2
	PAYING FOR HELP 1.7 and 1.8 SO SLOW! Locked	Will Cunningham 1 May 2007	Mauno Korpelainen 2 May 2007	10
	Past Moodle Backup Logs Locked	Donna Hrynkiw 2 Apr 2011	Donna Hrynkiw 2 Apr 2011	0
	password protection Locked	Erik Ringmar 28 Sept 2005	Michael Penney 28 Sept 2005	1
	Parts of Moodle and the home page load very slowly Locked	James Marshall 21 Aug 2007	Daniel Bailey 6 Jan 2010	9
	Partitioning server for moodle security. + SE linux Locked	Pubudu Premachandra 23 Feb 2006	Jonathan Moore 27 Feb 2006	4
	Partitioning scheme for Ubuntu Server Locked	Ryan B 10 Aug 2016	Howard Miller 13 Aug 2016	8
	Participants in meta courses aggregate very slowly Locked	Christian Zick 20 Apr 2010	Christian Zick 5 May 2010	2
	Partial load of Moodle pages Locked	Hittesh Ahuja 11 May 2016	Tim Hunt 12 May 2016	2
	Parse Error in Smarty.class.php Locked	Fazel Naghdy 24 Jan 2006	Iñaki Arenaza 25 Jan 2006	1
	Painfully slow loading Locked	Heleni Lindsell 3 Mar 2021	Heleni Lindsell 13 Apr 2021	7
	Page Loading is too Slow Locked	Hamid Takesh 15 Mar 2007	Genner Cerna 23 Mar 2007	5
	Page load optimisation article - multiple hostnames? Locked	Matt Gibson 14 June 2007	Pieterjan Heyse 14 June 2007	1
	Page generation runs quickly, but... Locked	Shevchenko Dmitry 30 Sept 2009	Shevchenko Dmitry 2 Oct 2009	5
	Page delivery 6 to 12 seconds (too slow) Locked	Mike Hays 12 July 2009	HJWUCGA INC. 14 July 2009	5
	Overriding server timeout parameter can create chaos Locked	Pierre Raynaud 12 Feb 2019	Andrew Lyons 14 Feb 2019	3
	Overloading server due to Cron on LINUX Locked	K.James Mathai 30 Aug 2006	Dan Stowell 30 Aug 2006	1
	overloading mysql Locked	Zahra E 3 June 2009	Visvanath Ratnaweera 4 July 2009	8