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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
	Server Slowness is causing us badly Locked	Shuvendu Pattanayak 16 Jan 2020	Visvanath Ratnaweera 17 Jan 2020	4
	Server Sizing Guide for Moodle Locked	Mark Stevens 10 Dec 2004	Mikael Ekblom 15 Dec 2004	15
	server shut down by provider Locked	stefan kraus 15 Mar 2006	Visvanath Ratnaweera 14 May 2006	4
	Server Setup for multiple Users Locked	John Carlos Caraan 19 Aug 2020	Visvanath Ratnaweera 19 Aug 2020	1
	Server set up but upload?? Locked	Jayasri Padmanathan 30 Aug 2005	Visvanath Ratnaweera 31 Aug 2005	1
	Server resources Locked	Anne Simon 18 June 2020	Rick Jerz 30 June 2020	19
	Server requirements: memory size etc Locked	Anthony Crooks 18 Jan 2005	Bill Burgos 18 Jan 2005	1
	Server Requirements: 200 simultaneous users Locked	Rosalyn Metz 18 Mar 2009	Elvedin Trnjanin 31 Mar 2009	10
	Server Requirements for large Moodle Deployment up to 40k users with500 concurrent scalable to ... Locked	Steve Beitzell 27 Aug 2010	Visvanath Ratnaweera 31 Aug 2010	3
	Server requirements for 5000 users Locked	Panagiotis Iliopoulos 12 Oct 2005	Martín Langhoff 20 Nov 2005	12
	Server Requirements for 2000 Concurrent Users With MS SQL Locked	Hrishikesh J 21 Apr 2021	Visvanath Ratnaweera 22 Apr 2021	3
	Server Requirements - help with holiday homework Locked	Simon Borgert 17 Apr 2009	Simon Borgert 28 Apr 2009	2
	Server Requirements Locked	Daniel McDermott 6 Nov 2004	Don Hinkelman 10 Nov 2004	5
	Server Requirement to serve 25,000 users Locked	Alvyn Lim 21 Nov 2007	Visvanath Ratnaweera 27 Nov 2007	3
	Server Requirement Locked	Mohammad Talat 19 Apr 2015	Seth Mengal 21 Apr 2015	3
	server refuses connection Locked	Dr S Bhatia 25 Aug 2006	ahmad nazrin 29 July 2009	9
	Server Recommendations Locked	Ross Oakes 3 Apr 2007	Chris Ainsworth 9 Apr 2007	4
	Server Recommendations Locked	Colin Napier 19 May 2006	Brett Drinkwater 27 May 2006	2
	Server Reccomendation Locked	Ed Huntsman 18 June 2006	Dayron D 27 June 2006	11
	Server RAM usage increases after some time without any request Locked	Noé Ortega Quijano 26 Oct 2006	Noé Ortega Quijano 26 Oct 2006	5
	server quota filling up Locked	Erik Ringmar 21 Sept 2005	Erik Ringmar 21 Sept 2005	2
	Server Problem? Locked	Peter Stanforth 13 July 2004	Peter Stanforth 13 July 2004	2
	Server Ports and position Locked	J B 4 Oct 2004	Wayne Gaish 4 Oct 2004	6
	Server performance Locked	Gustavo García 18 Feb 2020	Visvanath Ratnaweera 19 Feb 2020	5
	Server Overload Locked	vansh gulati 11 Aug 2016	Visvanath Ratnaweera 11 Aug 2016	3
	server OS Locked	Ralph Patterson 28 Sept 2006	Visvanath Ratnaweera 30 Sept 2006	5
	Server Network Connection Speed Locked	John Williams 8 Jan 2008	Tom Harold 23 Mar 2011	4
	server memory cannot release Locked	Patrick Lee 7 Jan 2005	Martin Dougiamas 8 Jan 2005	11
	Server Loads Locked	Steve Edwards 22 Jan 2004	Sean McKay 24 July 2004	16
	Server load testing Locked	Abu Ali 29 Aug 2019	Visvanath Ratnaweera 1 Sept 2019	2
	Server Host options for School District? Locked	Melissa Benson 2 Feb 2008	Dan Trockman 2 Mar 2008	18
	Server Hardware Requisites Locked	Hugo Cardoso 14 Feb 2018	Hugo Cardoso 17 Feb 2018	10
	Server Hardware requirements Locked	Richard Watkins 12 June 2003	Bob Calder 14 June 2003	8
	Server Hardware Requirement for 300 User Locked	Aditya Gautam 24 Apr 2017	James Steerpike 10 June 2017	14
	Server hardware recommendations; system admin time required Locked	Bob Majors 21 Sept 2004	Thomas Haynes 25 Sept 2004	2
	Server hardware for 1000 concurrent users Locked	Jkail MOENE 31 July 2018	Albert Ramsbottom 31 July 2018	1
	Server Hardware - look OK? Locked	Rob Boris 23 Jan 2014	Howard Miller 5 Feb 2014	6
	Server for technical training Locked	Dave Ray 21 Apr 2005	Samuli Karevaara 23 Apr 2005	5
	Server for Moodle and Mahara Locked	Sulaiman Hana Permana 25 Aug 2010	Visvanath Ratnaweera 25 Aug 2010	1
	Server for 1500 users Locked	Lorenzzo Mollinar 29 Aug 2017	Chris Kenniburg 25 Sept 2017	2
	Server experience... Locked	Rob Delissen 12 Nov 2003	Richard Watkins 13 Nov 2003	2
	Server Does Not Support JPEG Locked	Thomas Bray 23 Feb 2004	Marcus Green 26 Feb 2004	15
	Server crashes at +20 concurrent users Locked	Fabulous Phil 10 Oct 2014	Howard Miller 16 Oct 2014	6
	Server crash during chat wtih 2 other persons Moodle 2.4.3 Locked	Gary Lebowitz 11 Nov 2015	Emma Richardson 6 Jan 2017	11
	Server connectivity error when 800 users took a test on the Moodle Mobile App Locked	Hai Hoan To 1 Oct 2020	Visvanath Ratnaweera 3 Oct 2020	2
	Server configuration requirement help Locked	Shyam S 5 Aug 2010	Jon Witts 6 Aug 2010	4
	Server Configuration for Moodle Locked	Raj Kumar 19 Jan 2018	Raj Kumar 19 Jan 2018	0
	Server configuration for Innodb Locked	hugo joe 6 May 2011	Visvanath Ratnaweera 11 May 2011	1
	Server configuration for approx 4500 users Locked	S. kavita 26 Sept 2017	S. kavita 26 Sept 2017	0
	server configuration for 50000 concurrent users Locked	Bav V 16 Mar 2011	Guillermo Madero 2 May 2011	17
	Server Configuration Locked	Derrick Llewellyn 17 Apr 2018	Howard Miller 18 Apr 2018	1
	Server Configuration Locked	Tarek Raslan 8 Jan 2016	Usman Asar 8 Jan 2016	2
	Server Clustering recommendations M2.6 Locked	Albert Ramsbottom 8 Jan 2014	J S 16 Feb 2014	13
	Server Cluster & Performance Monitoring Locked	Andrew Bailey 2 Oct 2008	Visvanath Ratnaweera 3 Oct 2008	2
	server change, slasharguments, & images Locked	Will Taylor 19 Sept 2005	Will Taylor 19 Sept 2005	1
	Server Capacity? Locked	Fiona MacAlister 18 Sept 2006	Visvanath Ratnaweera 18 Sept 2006	1
	Server Bogging. Locked	Loren Winfrey 24 Sept 2004	Loren Winfrey 24 Sept 2004	0
	Server and database choices Locked	Stuart Mayor 6 July 2005	Marcus Green 7 July 2005	1
	Server Alert Locked	Jon Fila 7 Oct 2010	Jon Fila 7 Oct 2010	0
	Server Admins: Spec Question Locked	Chai Nakpiban 25 Mar 2009	Visvanath Ratnaweera 29 Mar 2009	1
	Server Access Statistics for Moodle Locked	Rashan Anushka 23 Sept 2005	Genner Cerna 4 Oct 2005	5
	Serious SQL query performance problem with table mdl_grade_grades Locked	Marcelo Lopes 26 Nov 2009	Marcelo Lopes 26 Nov 2009	0
	Serious Server Problem: Help Greatly Appreciated Locked	Tim Allen 8 Sept 2004	Tim Allen 8 Sept 2004	3
	Serious Performance Issues with 1.7 Locked	Mr. Marc 31 Jan 2009	Howard Miller 2 Feb 2009	6
	Serious Performance Issues Locked	Kent Villard 8 Jan 2009	Samuli Karevaara 30 Jan 2009	8
	Serious Performance hit on login & user profiles Locked	Michael Hughes 18 June 2010	Bartosz Cisek 25 June 2010	1
	seprating moodle servers from moodledata and mysql servers for large amount of users Locked	Zahra E 28 Dec 2008	Marc Grober 12 May 2009	11
	Separate MSSQL database server? Locked	Richard Karel 31 Aug 2012	Visvanath Ratnaweera 31 Aug 2012	2
	Separate Database Server - Ram and CPU requirements	Danish Jim 6 Mar 2024	Le Minh Tuan 20 Apr 2024	9
	Separate Admin server	Ron Meske 20 June 2023	Tim Hunt 5 July 2023	19
	Sending forum messages on cron taking far too long Locked	Jorge Villalon 5 Apr 2013	Dan Poltawski 5 Apr 2013	1
	Selecting hardware setup Locked	Nitin Nimkar 23 Apr 2011	Nitin Nimkar 26 Apr 2011	4
	SELECT COUNT query really bringing down performance Locked	Shimron Trammell 27 Jan 2010	Henning Bostelmann 20 Feb 2010	8
	Seeking recommendations to improve performance Locked	Chris Biggs 16 Apr 2020	Howard Miller 16 Apr 2020	1
	seeking hosting company recommendations!! Locked	jordy koski 15 Dec 2003	David Mozealous 2 May 2006	16
	Seeking Anyone who host Moodles on Rackspace .... Locked	Ken Task 31 Jan 2018	Ken Task 26 Mar 2018	6
	Seeking advice on server Locked	Darren Oakley 10 Dec 2017	Ken Task 12 Dec 2017	8
	Security, firewalls and Linux Locked	Rob Englebright 8 June 2004	Howard Miller 9 June 2004	1
	Security Alert! The PHP CGI cannot be accessed directly. Locked	Russell Cunning 25 Mar 2004	Janne Mikkonen 26 Mar 2004	3
	Secure Mode (a new kind of safe mode) Locked	Jenny Toller 10 May 2004	Jenny Toller 10 May 2004	0
	Secure HTTP (https) using MacOS X client Locked	Barron Koralesky 6 July 2005	Tony Hursh 6 July 2005	1
	secure forms Locked	ping chuan tan 20 Sept 2004	ping chuan tan 20 Sept 2004	0
	Searching for a Host Locked	Jackie Meyer 2 Aug 2007	Jackie Meyer 6 Aug 2007	9
	Search not working 3.9	Velson Horie 10 May 2023	Velson Horie 10 May 2023	1
	Script to test concurrent Moodle connections? Locked	Atanas Radenski 4 Sept 2006	Martín Langhoff 4 Sept 2006	3
	SCORM will not resume Locked	V Martin 5 Dec 2013	Usman Asar 12 Dec 2013	3
	Scorm test 10,000 users simultaneously	Paolo Corsi 10 Oct 2023	Ron Meske 22 Oct 2023	15
	SCORM responsiveness - too slow. Locked	Thomas Tyson 19 June 2008	Todd Thornton 10 July 2008	2
	Scorm Packages Upload and Duplicate Issue Locked	Muhammad Ammar` Ijaz 11 July 2017	Muhammad Ammar` Ijaz 11 July 2017	2
	SCORM Package breaks from 500 errors on image files? Locked	David Garden 5 Nov 2018	Matteo Scaramuccia 6 Nov 2018	1
	SCORM flash too slow Locked	René Alvarez 11 Sept 2015	Matteo Scaramuccia 15 Sept 2015	5
	SCORM editing activity slow Locked	Tom Kleintjens 28 Sept 2016	Tom Kleintjens 28 Sept 2016	0
	SCORM 1.2 loading slowly on Moodle 2.7 on iPad, on justHost server Locked	Subramani K 22 May 2014	Usman Asar 22 May 2014	7
	Scheduled tasks - Log cleanup Locked	Gerald Albion 4 June 2015	Howard Miller 4 June 2015	1
	Scaling up Locked	John Fenig 20 Feb 2020	Matteo Scaramuccia 23 Feb 2020	15
	Scaling online tests Locked	Visvanath Ratnaweera 4 June 2007	Visvanath Ratnaweera 6 June 2007	3
	Scaling a Local Education Authority System? Locked	Edward Pryce 22 May 2008	Dan Poltawski 29 May 2008	4
	Scaleablity of Moodle Locked	Theo Stone 25 Jan 2004	Vipen Mahajan 21 June 2008	14
	scalable architecture for moodle Locked	robert ngo 1 Sept 2009	robert ngo 1 Sept 2009	0
	scalability in moodle Locked	Анастасия Кравчук 19 May 2021	Usman Asar 29 Jan 2022	18