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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 3217 discussions
Status	Discussion	Started by	Last post	Replies	Actions
	Scalability far can Moodle be pushed Locked	Bryan Smith 30 May 2014	Dan Marsden 3 June 2014	11
	Scalability Locked	Anthony McKenna 15 Nov 2011	Howard Miller 12 Jan 2012	10
	Saving quiz caching takes a long time and crashes Locked	Michael Ko 17 Dec 2014	Michael Ko 21 Jan 2015	12
	Saving data when edit a course is too slow Locked	Lazaro Alonso Baca Marin 22 Oct 2020	Lazaro Alonso Baca Marin 22 Oct 2020	0
	Same/Different Moodle courses Locked	SS Khew 1 Dec 2015	Visvanath Ratnaweera 1 Dec 2015	1
	Same application,different hardware,No change in performance Locked	shrikant gakhare 30 Dec 2012	Visvanath Ratnaweera 10 Jan 2013	25
	SAFE MODE=ON - FTP instead? Locked	Tom harr Jakobsen 14 Mar 2006	stefan kraus 18 Mar 2006	3
	safe mode restriction Locked	Federica Oradini 29 Jan 2006	Gert Jan Bouman 2 Feb 2006	2
	Safe Mode and my server Locked	John Lyman 20 May 2004	Howard Miller 22 May 2004	1
	Running two moodles on one server? Locked	reg phenna 14 Jan 2005	Timothy Takemoto 14 Jan 2005	3
	Running Slow Locked	Thomas Bray 2 Apr 2004	Thomas Bray 2 Apr 2004	0
	Running out of space with assignfeedback_editpdf\task\convert_submissions Locked	Kodo Mafija 27 Mar 2021	Visvanath Ratnaweera 3 Apr 2021	24
	Running moodle on the web farm with 25000 users(800-3000) Simultanious Locked	Munish Gupta 23 Aug 2007	Munish Gupta 23 Aug 2007	0
	Running cron from multiple webservers Locked	Christos Savva 9 Feb 2018	Christos Savva 12 Feb 2018	9
	Running both eAccelerator and memcached Locked	Luis de Vasconcelos 12 June 2009	Justin Haaga 12 June 2009	1
	Running a Jmeter testplan Locked	James Steerpike 14 Sept 2020	Andi Sugandi 15 June 2021	8
	Run Moodle locally for presentation and testing? Locked	Steven Day 30 Mar 2004	W Page 21 Apr 2004	8
	Rule of thumb for sizing Moodle servers Locked	Gary Weinstein 25 Jan 2008	Fouzi Sukhilala 26 Oct 2010	8
	Roles performance issues in moodle, whats wrong? Locked	Markus Hagman 9 Nov 2006	denis cahalane 3 May 2007	28
	Roadmap for deploying solution for 2000-4000 students Locked	Isaac Marecheau 10 May 2018	Howard Miller 14 May 2018	6
	RHEL 5 Server - Setup/Configuration Advice Locked	Anthony Borrow 14 Jan 2008	Anthony Borrow 23 Mar 2008	8
	Rethinking email delivery from Moodle 3.2 Locked	Dan Poltawski 20 Oct 2016	Michael Aherne 27 Oct 2016	17
	Restoring data files and work on Moodle Locked	DeLea Payne 19 Feb 2009	DeLea Payne 19 Feb 2009	0
	Restoring courses is slow, php settings advice Locked	Rick Jerz 30 Aug 2013	Rick Jerz 5 Sept 2013	7
	response time of quizzes Locked	Benedikt Köhler 5 Oct 2022	Tim Hunt 5 Oct 2022	1
	Response time issues - strace analysis help needed Locked	Chris Martel 6 Apr 2011	Daniel Tran 18 May 2011	7
	Resources that actually go through the moodle server Locked	Eric Carlson 16 Feb 2007	Grant Carmichael 22 Feb 2007	3
	Resource URLs Locked	Tim Howarth 10 Jan 2006	Tim Howarth 10 Jan 2006	0
	resource caps hit with only one user Locked	Mike Thon 19 Aug 2011	Michael DeLuca 19 May 2012	4
	Resilience, Redundancy, Failover of Moodledata Locked	Deleted user 20 Nov 2017	Jeff White 21 Nov 2017	2
	requirments for moodle server Locked	Mikas Krukauskas 24 Sept 2019	Visvanath Ratnaweera 25 Sept 2019	5
	Requirements Moodle 1.7 Locked	Valérian G 30 Jan 2007	Valérian G 12 Feb 2007	2
	Requirements for moodle hardware and settings to support 5k users simultaneouly Locked	deepa ganu 23 Oct 2015	Usman Asar 24 Oct 2015	4
	Requirements for a scalable platform Locked	Gabriel Del Signore 16 Sept 2009	Visvanath Ratnaweera 19 Nov 2009	1
	Requirements for 2.5k+ users Locked	Леонид Никифоренко 17 Mar 2020	Visvanath Ratnaweera 17 Mar 2020	2
	requirements Locked	Nitharshanaa Shanmuganathan 9 Nov 2012	Nitharshanaa Shanmuganathan 9 Nov 2012	2
	Requirement for Migrating My Moodle School Locked	Arnold Yu 10 Dec 2018	Visvanath Ratnaweera 11 Dec 2018	12
	Requesting Server Configuration Advice Locked	Kelly Scott 2 Dec 2005	Michael Penney 7 Dec 2005	6
	Requested Range Not Satisfiable Locked	Thomas Haynes 1 Dec 2004	Thomas Haynes 5 Jan 2005	24
	Request Timeout when editing or creating users Locked	Miguel Fabo 6 Mar 2021	Miguel Fabo 11 Mar 2021	12
	Requerimientos Hardware Locked	Luis Guachamín 23 Aug 2011	Visvanath Ratnaweera 27 Aug 2011	1
	Requerimientos de Hardware Locked	hector molina 10 May 2007	Mauro Ramón 15 May 2007	2
	Reqrired frontend and backend specification required for about 100,000 user Locked	neama ageb 12 Mar 2009	Visvanath Ratnaweera 15 Mar 2009	7
	Req: Advice on Regional Moodle Content Providers? Locked	Greg Taylor 15 Oct 2011	Tim Hunt 17 Oct 2011	2
	Replicatring the 'Plugins Overview' page via SQL Configurable Reports block. Locked	VoltarMendoza VoltarMendoza 21 Sept 2019	VoltarMendoza VoltarMendoza 21 Sept 2019	0
	Replication or Clustering Locked	Troy Garrett 6 Aug 2012	Eric Long 16 Aug 2012	3
	Replicating/Moving Locked	Bill Moseley 23 Aug 2003	Frederic Triquet 14 Nov 2003	6
	Repeated flood of requests causes all database connections to be used up? Locked	Mathew Gancarz 27 Mar 2015	Howard Miller 28 Mar 2015	6
	Repeated crashes at random times Locked	Tomas Suarez 25 Nov 2021	Tomas Suarez 25 Nov 2021	0
	Rendering Content Take Long Time Locked	Carolus Joseph 30 Mar 2020	Carolus Joseph 30 Mar 2020	0
	Removing old user data Locked	Jamie Pratt 25 Mar 2009	Robert Brenstein 23 Apr 2009	1
	Removing Old Records Locked	Carl Keller 5 July 2008	Carl Keller 5 July 2008	0
	Removing Modules Improve Performance? Locked	James Phillips 28 Aug 2005	James Phillips 29 Aug 2005	4
	Remove Apache modules Locked	Mohd Heidzir heidzir 24 Apr 2007	Mohd Heidzir heidzir 20 June 2007	2
	Remote Management Locked	sreelatha anugonda 7 Nov 2003	sreelatha anugonda 8 Nov 2003	2
	Remote and local access Locked	Nick Garrod 10 Sept 2011	Visvanath Ratnaweera 21 Sept 2011	3
	Refresh Mod Calendar Events Task - Slow Locked	Grady Miller 2 Mar 2018	Russell Morriss 1 Aug 2018	6
	Redundant Moodle Application Locked	Matt Polaniecki 21 Jan 2016	Albert Ramsbottom 11 July 2016	4
	Redundacy and Operating System Advise Locked	Liam Cummings 11 Feb 2011	Visvanath Ratnaweera 15 Feb 2011	1
	Reducing size of MySQL ibdata1 file Locked	John Wells 17 June 2011	Taylor Judd 17 June 2011	1
	Reduce bandwidth by 80-85%!!! Locked	Dakota Duff 11 July 2008	Howard Miller 1 Dec 2014	10
	redis session lock performance Locked	Johan Loubser 30 July 2021	Albano A. 29 Dec 2021	3
	Redis session caching locks? Locked	Vaesar Rodriguez 30 Aug 2017	Vaesar Rodriguez 29 Sept 2017	3
	Redis on AWS Elasticache OOM error and 'maxmemory-policy' Locked	Andrew Zito 18 May 2020	Andrew Zito 18 May 2020	0
	Redis lock; pid=6213; Got exception while trying to get lock: Redis server went away Locked	António Godinho 12 May 2020	António Godinho 12 May 2020	0
	redis instance added but "Not Ready" Locked	Brian Y 11 June 2020	Brian Y 17 June 2020	2
	Redis caching and unix socket configuration Locked	Alain Raap 5 Aug 2019	Alain Raap 19 Aug 2019	14
	Redis cache store instance Locked	Luis de Vasconcelos 23 Apr 2019	Jeff White 24 Apr 2019	1
	Redis Cache Lock Issue Locked	Eric Katchan 2 May 2019	Eric Katchan 3 May 2019	2
	Redis and stunnel Locked	Mark Johnson 14 June 2019	Mark Johnson 11 Dec 2019	4
	Redis - key prefix length	Stuart Anderson 10 Nov 2023	Stuart Anderson 10 Nov 2023	0
	redirect after post Locked	Genner Cerna 23 Mar 2007	Genner Cerna 23 Mar 2007	0
	Redhat or SUSE? 32 bit or 64 bit? Locked	Tabitha Parker (was Roder) 16 Aug 2012	Visvanath Ratnaweera 11 Oct 2012	6
	redhat 9 security issue? Locked	Martin Koops 6 Feb 2005	Martin Koops 8 Feb 2005	2
	recorder.bsf missing error with jmeter 5.6.3 and moodle test plan	Alka Bhushan 28 Feb 2024	Alka Bhushan 28 Feb 2024	0
	Recommended specs - new moodle installation Locked	Basti Bunz 14 Nov 2018	Ralf Hilgenstock 19 Nov 2018	2
	Recommended Server Specifications for Bitnami Moodle Locked	william de dios 15 June 2021	Ken Task 15 June 2021	3
	Recommended Server Hardware: 600 users, Moodle 2.2 Locked	James Johnston 20 June 2012	Visvanath Ratnaweera 22 June 2012	1
	Recommended Load Balancing algorithms for moodle Locked	m M 30 July 2013	Anna Jonna Ármannsdóttir 29 Nov 2013	7
	Recommended hardware to Moodle Locked	Jenő Duchon 5 Oct 2011	Jenő Duchon 5 Oct 2011	6
	Recommended Database Configuration taking online quiz with Moodle Hosted on Google Cloud Locked	Arnold Babasa 1 Oct 2021	Arnold Babasa 5 Oct 2021	9
	Recommended best practice for enterprise Moodle and to improve performance of the system Locked	HJWUCGA INC. 5 Feb 2009	Chad Outten 9 July 2009	5
	Recommendations needed for improving performance Locked	cesar correa 26 Apr 2013	cesar correa 26 Apr 2013	2
	Recommendations for using Moodle in a CPanel VPS Locked	Alejandro Lengua 3 Feb 2022	Visvanath Ratnaweera 3 Feb 2022	2
	Recommendations for Moodle server hardware Locked	Dan Zimmerman 7 Dec 2006	Visvanath Ratnaweera 8 Dec 2006	1
	Recommendation on VPS spec Locked	Melissa Benson 28 Nov 2013	Visvanath Ratnaweera 8 Dec 2013	26
	Recommendation of SQLTunner Locked	Abu Ali 4 Sept 2019	Ken Task 4 Sept 2019	2
	Recommendation for a server for 2000 students - Locked	Michele Balazs 30 Sept 2004	Genner Cerna 1 Oct 2004	7
	Recommendation for a Moodle Web Host Locked	Bruce Selzler 14 July 2005	Genner Cerna 14 July 2005	1
	Recommend Settings Amazon AWS (Managed by Cloudways) Locked	Seth Mengal 10 Sept 2015	Seth Mengal 9 Dec 2015	6
	Recent problems at Netmondo? Locked	Thomas Bray 22 Feb 2004	Don Hinkelman 23 Feb 2004	15
	Recent experiences with GlusterFS? Locked	Noveck Gowandan 6 June 2019	kfrydrys ILIM 2 Apr 2020	2
	Recent Degredation on Moodle Performance Locked	Tim Gildersleeve 15 Jan 2020	Tim Gildersleeve 16 Jan 2020	5
	Receive automatic phone call when site is not available Locked	Micky Fokken 17 May 2011	Taylor Judd 17 May 2011	1
	Rebuilding The Moodle Database Question Locked	Steven P. 26 Jan 2016	Howard Miller 27 Jan 2016	2
	rearranging course categories is very slow Locked	Tobias Marx 21 Aug 2007	Rosario Carcò 13 Sept 2010	26
	Realtime testing for Moodle2.9 Locked	anita bankar 12 Oct 2015	Jeff White 13 Oct 2015	3
	Really Slow Quiz Locked	Jessica Tranter 7 May 2016	Jessica Tranter 11 May 2016	11
	Really slow logon Locked	Stuart Hector 11 Mar 2015	Howard Miller 15 Mar 2015	7
	Really awful performance Locked	Malcolm Moore 19 Oct 2007	Matt Gibson 20 Oct 2007	2