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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
	Settings for Moodle Drag and Drop Locked	Deleted user 1 Sept 2014	Deleted user 15 Sept 2014	3
	jmeter with ldap Locked	Mark Sharp 8 Apr 2014	Deleted user 10 Apr 2014	1
	System Locking up with more than a dozen users Locked	Mark Hardwick 26 Sept 2013	Mark Hardwick 10 Oct 2013	17
	Memcache Configuration Locked	Mark Williams 16 Aug 2013	jason everling 27 Aug 2013	8
	Need some advise Locked	Mark Tomlinson 31 Jan 2013	Visvanath Ratnaweera 31 Jan 2013	4
	Windows server problems Locked	Mark Smith 21 Sept 2011	Visvanath Ratnaweera 23 Sept 2011	6
	Slow Response – Download / Upload Locked	Mark Hardwick 29 Aug 2011	Visvanath Ratnaweera 30 Aug 2011	6
	Advice Needed for New Moodle Setup for 4 Primary Schools Locked	Mark Jackson 8 Nov 2010	Visvanath Ratnaweera 10 Nov 2010	3
	Hosting - I'm so lost Locked	Mark Augias 16 Feb 2010	Michael Penney 16 Feb 2010	3
	VERY Slow HTTPS response Locked	Mark Johnson 14 Sept 2009	Jon Witts 21 Sept 2009	8
	best settings for eAccelerator Locked	Mark Little 3 Oct 2008	Mark Little 6 Oct 2008	2
	VMware and Moodle Locked	Mark Little 30 Sept 2008	Mark Little 6 Oct 2008	2
	1.9 - Statistics running all day Locked	Mark Schumann 15 Apr 2008	Mark Schumann 15 Apr 2008	0
	Variables page slow to load Locked	Mark Mills 17 July 2006	Mark Mills 18 July 2006	1
	HEY HEY HEY,PROBLEMS WITH HARDWARE SERVER Locked	mark lemans 12 May 2006	mark lemans 12 May 2006	0
	Apache GUI Locked	Mark Little 20 Mar 2006	Benoit Brosseau 22 Mar 2006	3
	Slow A ctivities and Blocks Locked	Mark Davies 22 Sept 2005	Mark Davies 22 Sept 2005	0
	Boosting RSS block and messaging performance Locked	Mark Stevens 8 Sept 2005	Daryl Hawes 16 Sept 2005	7
	Performance Issues with Moodle 1.4.3 Locked	Mark Davies 30 June 2005	Miles Tillinger 3 July 2005	7
	Server Sizing Guide for Moodle Locked	Mark Stevens 10 Dec 2004	Mikael Ekblom 15 Dec 2004	15
	Connecting to the MySQL Database using ODBC Locked	Mark Little 6 Oct 2004	Charles Libby 26 Oct 2004	1
	Win 2003 problem Locked	Mark Hope 20 Aug 2004	Peak Becker 27 Sept 2004	7
	UK Data Protection Act Locked	Mark Berthelemy 2 Mar 2004	Rick Barnes 11 Jan 2006	7
	Concurrent Users Locked	Mark Berthelemy 7 May 2003	Robert Brenstein 12 Mar 2009	20
	Extreamly slow self-enrollment Locked	Marjan Milošević 23 Feb 2017	Marjan Milošević 24 Feb 2017	1
	How many moodle installs on single server? Locked	Marius S 9 July 2011	Gary Benner 10 July 2011	1
	Arguments in favour of PostgreSQL Locked	Mario Gharib 7 May 2021	Mario Gharib 26 May 2021	16
	Tracking students' activities ONLY during their attempts Locked	Mario Gharib 27 Apr 2021	Rick Jerz 7 May 2021	8
	Login 1,200 students at a time on quizzes Locked	Mario Gharib 2 June 2020	Tim Hunt 8 May 2021	6
	How to stress test Moodle? Locked	Mario Gharib 17 June 2019	Jeff White 18 June 2019	4
	Updating Browsers and OS for better Moodle performance Locked	Mario Gharib 17 June 2019	Ken Task 17 June 2019	1
	Best server characteristics for Moodle Locked	Mario Planas 26 Apr 2006	Pieterjan Heyse 28 Apr 2006	3
	Using Fantastico Locked	Marilyn Fleming 15 Aug 2004	Timothy Takemoto 29 Aug 2004	7
	Mime type question Locked	Marilyn Fleming 17 Jan 2004	Zbigniew Fiedorowicz 17 Jan 2004	1
	Groups and performance Locked	Maribel Rosich 27 July 2018	Howard Miller 27 July 2018	1
	Moodle 3.6.2+ DB Performance ( MariaDB Performance database optimization Galera Cluster) Locked	Mariano Vazquez 18 Dec 2020	Mariano Vazquez 18 Dec 2020	0
	dbperformance interpretation Locked	Mariana vd Walt 29 July 2007	Mariana vd Walt 30 July 2007	2
	Problem with course restore Locked	Marian Kočenda 15 Dec 2016	Jeff White 16 Dec 2016	2
	moodle in azure Locked	MARIA CENTENO 19 Feb 2019	Mathew Gancarz 21 Feb 2019	7
	Minimal hardware requirements for Moodle Locked	Maria B. 27 Oct 2006	Visvanath Ratnaweera 2 Feb 2007	7
	Weird message in php error log file Locked	Mari Cruz García 27 Nov 2014	Mari Cruz García 5 Dec 2014	4
	Is Opcache enough the improve performance of a Moodle 2.6 site? Locked	Mari Cruz García 25 Sept 2014	Mari Cruz García 25 Sept 2014	0
	Moodle Multi-tenancy or hosting multiple Moodle sites Locked	Mari Cruz García 11 Sept 2014	Deleted user 30 Sept 2014	19
	Maximum number of record in database tables for Windows servers Locked	Mari Cruz García 9 June 2014	Petr Skoda 11 June 2014	8
	MUC performance information in a Windows 2008-IIS7 server Locked	Mari Cruz García 25 Mar 2014	Mari Cruz García 25 Mar 2014	0
	How to run the database performance script in Moodle Locked	Mari Cruz García 4 Feb 2014	Ken Task 11 Feb 2014	14
	Hardware requirements for a Moodle-medium size in CenTOS Locked	Mari Cruz García 25 June 2013	Mari Cruz García 2 July 2013	6
	Further tests using Ylsow +perfdebug Locked	Mari Cruz García 16 Mar 2013	Mari Cruz García 26 Mar 2013	9
	Quick question about FastCGI settings and https Locked	Mari Cruz García 12 Mar 2013	Mari Cruz García 15 Mar 2013	2
	Windows server: I have tried everything to increase its performance Locked	Mari Cruz García 7 Mar 2013	Mari Cruz García 15 Mar 2013	4
	Php acelerator in Windows server Locked	Mari Cruz García 11 Feb 2013	Mari Cruz García 12 Feb 2013	2
	Equivalent to MaxKeepAliveRequests in Windows IIS7 Locked	Mari Cruz García 16 Jan 2013	Mari Cruz García 24 Jan 2013	2
	How do i make site online/public? Locked	Marg Smith 10 July 2019	Howard Miller 10 July 2019	5
	Upgrading moodle performance - activities and resources deinstallation. Locked	Marek Neuman 30 Aug 2012	Marek Neuman 30 Aug 2012	2
	Qptimal value of KeepAliveTimeout Locked	Marcus Ng 13 Oct 2021	Alex Rowe 10 Nov 2021	3
	File or Database Sessions? Locked	Marcus Green 25 July 2014	Mark Picker 4 Mar 2015	6
	Problem with Module Auth is not readable, check ... Locked	marcos2 silva2 27 July 2011	marcos2 silva2 27 July 2011	0
	Need help optimizing Moodle install on shared server Locked	Marcos Codas 16 June 2020	Visvanath Ratnaweera 18 June 2020	31
	Increasing apache capacity with moodle Locked	Marcos Montero 23 Sept 2006	Genner Cerna 6 Oct 2006	6
	An installation for 20.000 users, 6.000 users peak. We need advice. Locked	Marco A. Marhuenda 9 Jan 2007	Richie Foreman 30 Mar 2007	4
	Taskprocessing options - how set?	Marco Marco 27 Mar 2024	Howard Miller 2 Apr 2024	1
	Upgrade / scaling of a DB for a single instance (~100k Users)	Marco Schrittwieser 5 Jan 2024	Tim Hunt 9 Jan 2024	3
	Course Backup, Restoration and Deletion is very slow	Marco Cigna 1 Nov 2023	Marco Cigna 1 Nov 2023	6
	Moodle configuration for 5000 simultaneous connections	Marco Marco 4 July 2023	Brett Dalton 6 July 2023	4
	Performance Testing Locked	Marco Marco 22 Feb 2023	Visvanath Ratnaweera 23 Feb 2023	1
	Table log_queries has 15 GB - what to do? Locked	Marco Arcangeli 5 Aug 2020	Marco Arcangeli 6 Aug 2020	10
	moodle 2.0.3 linux cluster Locked	marco polo 29 Aug 2011	Matteo Scaramuccia 29 Aug 2011	3
	Database Connection - beginner`s questions Locked	Márcio Vilaça 2 May 2008	Myles Carrick 5 May 2008	4
	Memcached session storage issues (AWS) Locked	Marcin Watroba 18 Aug 2020	Howard Miller 16 Oct 2020	3
	Serious SQL query performance problem with table mdl_grade_grades Locked	Marcelo Lopes 26 Nov 2009	Marcelo Lopes 26 Nov 2009	0
	Moodle and Postgres: Performance problems Locked	Marcelo Lopes 7 Nov 2009	Penny Leach 26 Nov 2009	3
	"Slow" render Times not under 1.2 sek Locked	Marcel Matschke 11 Apr 2017	Marcel Matschke 22 Apr 2017	13
	Cron Jobs on Shared Hosting	Marc Mereyde 22 Aug 2023	Visvanath Ratnaweera 22 Aug 2023	4
	Apache CPU High Usage when opening tasks Locked	Marc Celeiro 17 Jan 2019	Ramzi Hosni 22 Feb 2019	21
	mdl_events Table Locked	Marc Hermon 16 Apr 2014	Howard Miller 16 Apr 2014	1
	moodle on godaddy hosting - very slow, errors Locked	marc helfano 17 Sept 2010	Jon Fila 7 Oct 2010	5
	Moodle causing a high load on the server Locked	Marc Ramis Llorca 22 Dec 2009	Glenys Hanson 23 Dec 2009	2
	how to host Locked	Marc Wells 24 May 2006	Visvanath Ratnaweera 26 May 2006	1
	Question about too many queries? Locked	Marc Dastous 10 Sept 2004	Marc Dastous 10 Sept 2004	0
	Slow down in server from my host or is it my Moodle? Locked	Marc Paré 30 July 2004	Marc Paré 1 Aug 2004	2
	Cannot connect error message Locked	Marc Dastous 24 Apr 2004	Zbigniew Fiedorowicz 24 Apr 2004	1
	General PHP/MySQL questions... Locked	Marc Dastous 11 Feb 2004	Mark Smith 23 May 2004	27
	quiz on moodle 2.4 slow Locked	Maram Alsafarini 14 Apr 2015	Maram Alsafarini 14 Apr 2015	4
	Quiz for moodle 2.2--- documents content no data Locked	Maram Alsafarini 29 Mar 2015	Visvanath Ratnaweera 29 Mar 2015	2
	Benchmarking MySQL for Moodle Locked	Manuel de la Torre 1 Sept 2008	Visvanath Ratnaweera 2 Sept 2008	1
	SMTP question Locked	Manuel de la Torre 21 Jan 2007	Anthony Borrow 22 Jan 2007	3
	KIOSK Based Moodle Locked	Manu Sharma 5 Aug 2010	Marc Grober 6 Aug 2010	3
	RAM is not freeing up in time	Manoj Singh 18 Dec 2023	Visvanath Ratnaweera 19 Dec 2023	7
	Database permomance issue Locked	manoj joseph 29 Oct 2020	manoj joseph 31 Oct 2020	1
	Moodle SlowNess 3.8.3 Locked	Manoj More 27 July 2020	Visvanath Ratnaweera 6 Aug 2020	9
	CPU usage High Locked	manoj joseph 30 June 2020	Visvanath Ratnaweera 7 July 2020	13
	Errors while creating jmeter plan Locked	manoj joseph 19 June 2020	manoj joseph 22 June 2020	4
	Conducting quiz for 2000 users Locked	manoj joseph 2 June 2020	manoj joseph 2 Aug 2020	23
	Hardware Requirement for the moodle Locked	manling ho 30 May 2012	Visvanath Ratnaweera 31 May 2012	1
	Cherokee Experience Locked	Manish Verma 6 Mar 2011	Troo Don 16 Mar 2011	3
	VPS Catch-22 Locked	Manish Verma 29 Sept 2007	Matt Gibson 9 Oct 2007	1
	VPS Configuration vs Concurrent Users Locked	Manish Verma 2 Mar 2006	M Y 2 Mar 2006	4
	Host Migration with Upgrade Locked	Manish Verma 15 Aug 2005	Jason Hando 15 Aug 2005	1
	GD Issues Locked	Manish Verma 8 Aug 2005	Manish Verma 9 Aug 2005	2
	Multiple Moodle sites on a server cluster Locked	Manfred Deller 15 May 2008	Valery Fremaux 17 May 2008	4