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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
	Moodle really slow. Locked	Dr. Moodlearner 1 Aug 2007	Max Garrick 3 Aug 2007	7
	Server specification for 18000 users moodle site Locked	Dr. Amitkumar Mali 21 July 2014	Itamar Tzadok 23 July 2014	12
	Error after months Locked	Dr. Nellie Deutsch 24 Dec 2012	Visvanath Ratnaweera 26 Dec 2012	2
	Moodle 2.4.1 "Timed out while waiting for session lock" Locked	Dr. Nellie Deutsch 2 Mar 2013	Ken Task 1 Apr 2013	8
	How to enable cache javascript on a Moodle 3.10? (split from Load Testing Moodle 3.7 with ... Locked	Dr. Nellie Deutsch 5 Jan 2021	Dr. Nellie Deutsch 7 Jan 2021	8
	!.7.1+ Slow Login Locked	Drew Rogers 8 Sept 2007	Drew Rogers 10 Sept 2007	5
	Firts Steps in Moodle and Solution for 200 concurrent users Locked	Duarte Silvestre 13 May 2006	Rory Allford 16 May 2006	13
	MoodleData folder Locked	Duarte Silvestre 17 Oct 2006	A. T. Wyatt 17 Oct 2006	3
	Wich PHP accelerator with WIndows 2003 and PHP 5.1.6 ? Locked	Duarte Silvestre 23 Oct 2006	Gary Anderson 1 Nov 2006	4
	Web server or web hosting company to host our moodle? Locked	Duncan Smith 8 June 2005	Visvanath Ratnaweera 9 June 2005	3
	2Mbits Internet Connection Speed for hosting moodle site? Locked	Duncan Smith 16 June 2005	Visvanath Ratnaweera 3 Dec 2005	10
	Server Timeout?? Locked	Dustin Peet 17 Dec 2011	Visvanath Ratnaweera 20 Dec 2011	1
	Failover moodle server Locked	dwi sudibyo 13 Apr 2017	dwi sudibyo 14 Apr 2017	4
	Error with database connection Locked	Dzevad Turcalo 21 Jan 2022	Dzevad Turcalo 9 Feb 2022	3
	Many unauthenticated user, writing to net after using show processlist command Locked	Đặng Quang Hùng 18 June 2008	Tariq Adel Al Ammadi 23 July 2008	6
	Fatal error: filterlib.php. Please help Locked	Đinh Lư Giang 18 Feb 2006	Đinh Lư Giang 20 Feb 2006	2
	Upgrading MySql -- Many problems :( Locked	Đinh Lư Giang 1 June 2006	Đinh Lư Giang 1 June 2006	0
	BUILD A SERVER FOR MOODLE, HOW TO? Locked	Đinh Lư Giang 26 Oct 2008	Don Hinkelman 29 Nov 2008	5
	Any limits on gradebook export? Locked	Ebenezer Le Page 12 Jan 2010	Ebenezer Le Page 12 Jan 2010	0
	Invitation to join my Moodle community Locked	Ed Borasky 16 Oct 2005	Ed Borasky 16 Oct 2005	0
	Server Reccomendation Locked	Ed Huntsman 18 June 2006	Dayron D 27 June 2006	11
	Hosting Using 1&1 Uk Version Locked	Ed Huntsman 22 June 2006	David Brighton 27 July 2006	7
	file permissions in moodle 1.6 Locked	Ed McLafferty 10 July 2006	Ed McLafferty 23 Aug 2006	6
	Intermitant Performance Issue Locked	Ed Farmer 15 Jan 2011	Visvanath Ratnaweera 19 Jan 2011	6
	Any reason not to virtualize Moodle on Hyper-v Locked	Ed Henzel 13 Aug 2015	Ed Henzel 17 Aug 2015	9
	hosting Locked	eda karacelebi 13 Feb 2012	Helen Foster 19 Feb 2012	5
	Using AWS for Moodle Locked	Edilberto Solis, Jr. 3 Aug 2017	Greg Rudl 13 Sept 2018	10
	Database Connection Overload Locked	Edilberto Solis, Jr. 4 Sept 2020	Edilberto Solis, Jr. 4 Sept 2020	0
	Table has been queried without indexes Locked	Edmund Evangelista 26 Apr 2020	Edmund Evangelista 30 Apr 2020	5
	Moving moodle.org to kubernetes Locked	Eduard Cercós 25 Apr 2020	Eduard Cercós 3 Oct 2022	13
	problem on the mdl_grade_grades_category moodle 2.8, high cpu use in my server of databases. Locked	Eduardo Miranda 18 Mar 2015	Susan Mangan 27 Aug 2015	3
	Moodledata S3 project Locked	Eduardo Kraus 2 Jan 2016	Howard Miller 2 Jan 2016	1
	Moodle cluster (high availability and load balance) with Raspberry pi 4 Locked	Eduardo Alexandre Gula 31 Aug 2021	Visvanath Ratnaweera 2 Sept 2021	3
	Suggestions for a Moodle server Locked	Edward Kolibab 26 Mar 2004	Arne Gylseth 8 Apr 2004	6
	Windows server for school Locked	Edward Gash 18 Nov 2006	Visvanath Ratnaweera 7 Dec 2006	5
	Scaling a Local Education Authority System? Locked	Edward Pryce 22 May 2008	Dan Poltawski 29 May 2008	4
	core files Locked	edwin c 30 Apr 2004	edwin c 1 May 2004	2
	Backup Courses used 2Gb RAM?! Locked	Edwin Klein 3 Jan 2006	Iñaki Arenaza 26 Jan 2006	14
	Optimize Server Performance Locked	Edwin Klein 6 July 2006	Rory Allford 7 July 2006	7
	Web server performance for 5000 simultaneous users Locked	Eimantas Jakas 5 May 2020	Ricardo Caiado 7 Aug 2020	28
	mysql_connect() or mysql_pconnect() for quiz module only Locked	EL Aprendiz 25 Nov 2005	EL Aprendiz 25 Nov 2005	0
	Moodle Performance Test on JMeter Locked	Elavarasan MS 1 Oct 2012	Elavarasan MS 1 Oct 2012	0
	1.9.4+ (almost 1.9.5) and performance - table mdl_user_info_data Locked	Elena Ivanova 9 June 2009	Taylor Judd 11 June 2009	1
	Trim down the log database size Locked	eli chan 16 Nov 2016	Leon Stringer 18 Nov 2016	2
	Moodle 4.0 - Slow on loading course and especially in Edit mode on Locked	Elias Sfeir 2 Sept 2022	Howard Miller 3 Sept 2022	3
	IBM Server and Linux Distribution! Locked	Eliecer Acevedo Patiño 15 July 2005	Martín Langhoff 15 July 2005	2
	Test Load moodle Locked	Elio Wong 28 Jan 2009	Visvanath Ratnaweera 31 Jan 2009	1
	Using My Moodle...space usage Locked	Ellen Kinsel 18 Dec 2009	Dale Davies 7 Jan 2010	2
	Why is my small Moodle setup maxing out my server's 1 GB memory limit? Locked	Ellen Spertus 3 Apr 2018	Francisco Lemus 22 Sept 2018	23
	Load balanced webservers failing Locked	Ellio Mourinho 21 Feb 2014	Albert Ramsbottom 25 Feb 2014	7
	Performance issues with course overview + memcached Locked	Ellio Mourinho 5 Sept 2014	Dan Marsden 22 Sept 2014	8
	Slow cronjobs in 2.7 vs 2.6 Locked	Ellio Mourinho 21 Jan 2015	Ellio Mourinho 21 Jan 2015	0
	Jmeter Scripts Locked	Elvedin Trnjanin 23 Oct 2008	Elvedin Trnjanin 23 Oct 2008	0
	creation and deletion of courses is very slow Locked	elvys cruz 16 May 2021	Visvanath Ratnaweera 30 May 2021	3
	Apache2 Memory Usage Locked	Emma Richardson 28 Oct 2011	Andrew Lyons 16 Nov 2011	10
	Suhosin problem Locked	Emma Richardson 29 Aug 2012	Emma Richardson 29 Aug 2012	1
	Slow loading Admin pages Locked	Emma Richardson 3 Nov 2020	Emma Richardson 11 Nov 2020	16
	PHP Profiler Question	Emma Richardson 6 Mar 2024	Emma Richardson 7 Mar 2024	4
	100webSpace install moodle how i do it? Locked	Emmanuel López 23 Nov 2005	Michael Hall 25 Nov 2005	2
	Active 1.5 K users on then same time Locked	emre mert 23 Dec 2020	Visvanath Ratnaweera 24 Dec 2020	1
	Tips for increase quiz performance	Eng Husam 28 Sept 2023	James Steerpike 3 Oct 2023	12
	Want to permanently delete assignment submissions and annotated files Locked	Enkhbayar Erdenechuluun 9 Dec 2020	Enkhbayar Erdenechuluun 9 Dec 2020	0
	1000 concurrent users Locked	Enrique Martinez Roldan 8 Aug 2008	Howard Miller 26 Nov 2015	12
	Evaluation page doesn't work after update 2.4 to 2.9 Locked	Enzo Cappelluti 31 Aug 2015	Howard Miller 1 Sept 2015	1
	Moodle running out of space Locked	EPM CELP 4 May 2020	Najam Fazal 24 Apr 2021	33
	LAMP configuration for potentially 17.000 users Locked	Équipe TICEA 4 May 2005	Équipe TICEA 23 May 2005	6
	Configuration for 200 simultaneous quizz users ? Locked	Équipe TICEA 17 Nov 2005	Équipe TICEA 29 Nov 2005	4
	Up to 200.000 potential students Locked	Équipe TICEA 14 June 2006	Équipe TICEA 30 June 2006	8
	A server to install moodle Locked	erdal ayan 16 Mar 2018	erdal ayan 3 Apr 2018	8
	DO I need transactional InnoDB tables Locked	Eric Kemsley 11 Aug 2005	Martín Langhoff 11 Aug 2005	1
	Hardware Recommendations for Apache / PHP server Locked	Eric Henson 13 Oct 2006	Arnor Kristjansson 17 Oct 2006	9
	php accelerator Locked	Eric Henson 21 Nov 2006	Henry Johnson 22 Nov 2006	4
	MySql on new openSUSE 10.2 install Locked	Eric Henson 11 Dec 2006	Eric Henson 10 Jan 2007	6
	Resources that actually go through the moodle server Locked	Eric Carlson 16 Feb 2007	Grant Carmichael 22 Feb 2007	3
	HA Cluster without a NAS and Moodle Locked	Eric Schewe 20 Mar 2007	Visvanath Ratnaweera 20 Mar 2007	1
	Shopping for a new server Locked	Eric Hagley 20 May 2008	Eric Hagley 1 Oct 2010	14
	Minimum Moodle Setup for cloud computing hosting Locked	Eric Novikoff 18 July 2008	E. L. Cooper 21 May 2009	18
	MySQL locking up Locked	Eric Kemsley 12 Jan 2010	Eric Kemsley 13 Jan 2010	7
	Adding extra hard drive memory & does Moodle automatically detect it? Locked	Eric Hagley 8 Oct 2010	Visvanath Ratnaweera 9 Oct 2010	1
	Best my.cnf config Locked	Eric Hagley 25 Mar 2011	Frankie Kam 2 May 2011	6
	Any suggestions for a new server setup? Locked	Eric Smith 3 Nov 2012	Grant Mucha 8 Nov 2012	3
	Can 2.4 run on a Linux red hat 5.8 server - what is the best mysql for it Locked	Eric Hagley 15 Feb 2013	Visvanath Ratnaweera 16 Feb 2013	6
	What would you buy? Locked	Eric Hagley 11 Sept 2013	jason everling 27 Mar 2014	21
	Migrating from a linux to a windows server Locked	Eric Miletich 2 Dec 2014	Stuart Hector 11 Mar 2015	11
	Needs Assesment Locked	Eric Guedegbe 9 Feb 2015	Mary Cooch 10 Feb 2015	3
	Redis Cache Lock Issue Locked	Eric Katchan 2 May 2019	Eric Katchan 3 May 2019	2
	Jmeter testing questions Locked	Eric D 3 June 2020	Eric D 3 June 2020	0
	Managing scheduled tasks & php load on server Locked	Eric Phetteplace 23 Jan 2021	Ken Task 28 Jan 2021	34
	Is there a performance advantage to the db lock factory? Locked	Eric Phetteplace 4 Aug 2022	Howard Miller 4 Aug 2022	1
	Windows 2003 vs. Linux Locked	Erica Grong 7 Feb 2006	Gert Jan Bouman 10 Feb 2006	2
	server quota filling up Locked	Erik Ringmar 21 Sept 2005	Erik Ringmar 21 Sept 2005	2
	password protection Locked	Erik Ringmar 28 Sept 2005	Michael Penney 28 Sept 2005	1
	moving host, what to consider? Locked	Erik Ringmar 9 Oct 2005	Bhupinder Singh 12 Oct 2005	12
	Moodle on Ubuntu Locked	Erik Ringmar 11 Jan 2006	Erik Ringmar 15 Jan 2006	3
	moodle on a vps? Locked	Erik Ringmar 2 Feb 2007	Richie Foreman 3 Feb 2007	2
	GlusterFS and Moodle performance Locked	Erik Frangež 7 Dec 2021	Erik Frangež 15 Dec 2021	11
	Moodle on an iPad Locked	Erin Nickel 18 Jan 2014	ben reynolds 19 Jan 2014	3
	Is it possible to "save" this course? Locked	Erlyn Baack 9 May 2004	Erlyn Baack 10 May 2004	9
	Inexpensive Web Hosts and a Question Locked	Erlyn Baack 6 July 2004	Timothy Takemoto 29 Sept 2004	23
	Speed Tests Locked	Erlyn Baack 10 Oct 2004	Howard Miller 11 Oct 2004	1