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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
	Slow moodle (2.5.2) hosting ourselves on WIndows Locked	john allen 17 Sept 2014	Howard Miller 17 Sept 2014	2
	Slow Moodle Locked	Abdullah Zayed 26 Mar 2020	Abdullah Zayed 26 Mar 2020	3
	Slow Moodle Locked	Rob Monk 14 Feb 2012	Richard Jones 21 June 2012	16
	Slow Moodle Locked	Wayne Lee 6 Dec 2007	Wayne Lee 11 Dec 2007	8
	Slow logins for users and possible solution Locked	Jason Cashel 13 Oct 2009	Jason Cashel 13 Oct 2009	1
	Slow logins and page/video/SCORM quiz loads Locked	Daniel Williams 1 Aug 2014	Visvanath Ratnaweera 6 Aug 2014	25
	Slow loading times on Moodle Locked	Ms. Nouf AlRashed 27 Dec 2022	Howard Miller 27 Dec 2022	1
	Slow loading pages all the time Locked	David Nash 16 May 2007	Neena J.T. 6 June 2007	7
	Slow loading of only some lessons Locked	Dave Cuttriss 29 Aug 2007	JR Renna 11 Dec 2007	7
	Slow loading Moodle Course for Admin Locked	Jim Judges 20 Apr 2012	Grant Mucha 21 Apr 2012	4
	Slow loading Admin pages Locked	Emma Richardson 3 Nov 2020	Emma Richardson 11 Nov 2020	16
	Slow Load times and Freezes Locked	Aaron Czarnecki 19 Jan 2011	Aaron Czarnecki 4 Feb 2011	4
	Slow Load Time When Saving a new Activity or Editing an Existing one Locked	Ahmed Aly 19 Aug 2018	Ahmed Aly 27 Aug 2018	6
	Slow from University server Locked	Scott Bingham 17 Apr 2019	Emma Richardson 17 Apr 2019	1
	Slow forum with 3500+ replies Locked	Gerry Miranda 31 Oct 2020	Visvanath Ratnaweera 31 Oct 2020	1
	Slow file download and playing SCORM videos Locked	Sali Kaceli 7 Oct 2016	Nelson Moller 2 Oct 2017	14
	Slow down in server from my host or is it my Moodle? Locked	Marc Paré 30 July 2004	Marc Paré 1 Aug 2004	2
	Slow disk reads with Linux VMs, Moodle 1.9 Locked	Gregor Ronald 13 Sept 2012	Matt Sharpe 19 Sept 2012	10
	Slow cronjobs in 2.7 vs 2.6 Locked	Ellio Mourinho 21 Jan 2015	Ellio Mourinho 21 Jan 2015	0
	Slow Course Performance Locked	Kerushan Naidoo 19 Jan 2022	Marcos Pérez 18 Feb 2022	7
	Slow course loading times Locked	Jack Winstanley 16 Apr 2020	Jack Winstanley 16 Apr 2020	2
	Slow cache purge etc. Locked	Rikard E 20 Nov 2013	Rikard E 5 Mar 2014	6
	Slow backup and restore of small quizes where there's a lot of question in course Locked	Yedidia Klein 13 Dec 2018	Jerry Lau 13 Dec 2018	1
	Slow Admin Page Locked	Ahmed Al Kahky 25 Jan 2023	Ahmed Al Kahky 26 Jan 2023	2
	Slow A ctivities and Blocks Locked	Mark Davies 22 Sept 2005	Mark Davies 22 Sept 2005	0
	Slow Locked	Rick Knowles 24 May 2006	Michael Penney 25 May 2006	4
	Sizing policy Locked	Irati Abio 8 June 2009	Howard Miller 8 June 2009	1
	Size problems: files not cleaned Locked	David Dunn 13 Aug 2013	Guillermo Madero 16 Aug 2013	15
	siteidentifier is NULL Locked	Jeff White 12 May 2016	Jeff White 12 May 2016	0
	Siteground.com as a Moodle host Locked	Jeff Mehring 28 June 2007	miguel quintero 23 Aug 2015	34
	sitedata usage is massive Locked	Stefan McGarvey 6 May 2020	Stefan McGarvey 7 May 2020	13
	Site toooooooo slow Locked	Annie Price 9 Oct 2012	Visvanath Ratnaweera 10 Oct 2012	9
	Site responding quickly except for one thing... Locked	John Isner 25 Sept 2007	Steve Hyndman 25 Sept 2007	3
	Site performance Locked	Nikki Macfarlane 28 Apr 2018	Howard Miller 29 Apr 2018	3
	Site only accessible by IP, not domain name temporarily Locked	Najam Fazal 7 Apr 2021	Najam Fazal 21 Apr 2021	53
	Site monitoring with error reporting and notifications Locked	Matt Reid 18 May 2022	Michael Hughes 23 May 2022	2
	site logs Locked	John Roughley 11 June 2010	Bartosz Cisek 25 June 2010	1
	Site loading Time [ Please Test] Locked	Conrad Taylor 25 Sept 2004	Ger Tielemans 26 Sept 2004	15
	site loading slowly and sometime I get database connection failed Locked	Mr. Shortcut 5 May 2007	Đặng Quang Hùng 25 June 2008	30
	Site is very slow Locked	Fred Frazelle 31 Oct 2014	Fred Frazelle 31 Oct 2014	1
	Site is down! I've check these items..What else Locked	Rob Byrd 6 Feb 2006	Rob Byrd 12 Feb 2006	18
	Site Import Problems Locked	Keith Wills 24 July 2009	Keith Wills 24 July 2009	0
	Site home very slow, 39 seconds Locked	Albert Ramsbottom 18 July 2018	Howard Miller 25 July 2018	12
	Site becomes unusable after 1000 or so db connections Locked	John Unnever 29 Oct 2020	Thorsten Bartel 3 Nov 2020	4
	Site Administration Options Issue. Locked	Carolina Blackman 13 Mar 2021	Leon Stringer 15 Mar 2021	5
	Site "speed" metrics Locked	Howard Miller 22 Nov 2017	Mathew Gancarz 23 Nov 2017	7
	Single Sign On for different Moodle instances Locked	Kristina Ban 27 Aug 2014	Kristina Ban 27 Aug 2014	0
	Simultaneously Concurrent Users with Multiple Moodles Locked	JC Dodo 6 Feb 2014	Howard Miller 7 Feb 2014	1
	Simultaneously Concurrent Users Locked	Freddie Batista 1 Feb 2014	J S 3 Feb 2014	5
	Simultaneous users & Hosting? Locked	Jack Qadan 7 May 2011	Visvanath Ratnaweera 8 May 2011	3
	Simply Storage and Bandwidth - no more services Locked	CAlex Fagundes 10 July 2004	CAlex Fagundes 10 July 2004	0
	Simplehost.com Locked	Art Lader 20 Mar 2005	Scott Grogg 21 Mar 2005	1
	Simple global search Locked	Michelle Melton 28 May 2019	Michelle Melton 28 May 2019	0
	Significant slow down on login Locked	david english 10 Oct 2013	Visvanath Ratnaweera 14 Oct 2013	6
	Should I use existing Win2003 or plug in Apache Server? Locked	seaghan moriarty 28 Apr 2006	Visvanath Ratnaweera 4 May 2006	7
	Shopping for a new server Locked	Eric Hagley 20 May 2008	Eric Hagley 1 Oct 2010	14
	Shell access to remote server? Locked	Steven Day 30 Mar 2004	Steven Day 30 Mar 2004	3
	Shared temp folders in config.php Locked	Juan Luis Maestre 17 May 2020	Juan Luis Maestre 23 May 2020	12
	Shared or Dedicated Hosting? Locked	George Kao 17 July 2004	W Page 17 July 2004	2
	Shared Hosting decision Locked	Francisco Lemus 1 Oct 2014	john Simpson 10 Nov 2014	12
	Shared host or not to shared host, that is the question Locked	Carol Ann 19 Feb 2018	Usman Asar 27 Feb 2018	10
	Share us your help and experience Locked	zizo zizo 25 Apr 2015	Usman Asar 1 May 2015	2
	Several Slow courses in M2.5? Locked	Chris Chapman 2 Dec 2013	Howard Miller 3 Dec 2013	3
	Several confusing parts of clustering Locked	丞浩吳 7 July 2020	丞浩吳 10 July 2020	2
	Setup own webserver, open 2Mb dsl access for 1000 users Locked	Alex Ng 9 May 2007	Visvanath Ratnaweera 14 May 2007	1
	Setup New Moodle Server Locked	Sean Li 30 Aug 2007	Visvanath Ratnaweera 27 Nov 2007	1
	Setup Moodle with DynamoDB Locked	Liam M 21 Oct 2016	Michael Penney 30 July 2017	3
	Setup for 150k+ users, only 500 browsing users Locked	romain peridy 25 Feb 2011	romain peridy 25 Feb 2011	3
	Setup a MySQL cluster for Moodle Locked	CP Lau 26 Oct 2012	Jonas Asa. 12 Nov 2014	17
	Settings for Moodle Drag and Drop Locked	Deleted user 1 Sept 2014	Deleted user 15 Sept 2014	3
	Settings for memcache for sessions cache - can't find a moodle doc Locked	John Joubert 30 May 2018	John Joubert 30 May 2018	1
	setting up websharing on Mac OS X 10.3 Server for moodle Locked	LPS lps 4 May 2006	Klaus Schramm 24 May 2006	1
	Setting up moodle on LEMP Locked	Raunak Kumar 9 Mar 2023	Ken Task 10 Mar 2023	9
	Setting Up Memcache with transparent session failover Locked	Jeff White 29 Jan 2015	Jeff White 1 May 2015	2
	Setting memcache as default Locked	Andy Taggart 16 Apr 2015	Andy Taggart 17 Apr 2015	7
	Set up Moodle for 4000 users on Linux for my university Locked	Tien Do 31 May 2021	Visvanath Ratnaweera 8 June 2021	11
	Set Up Memcached and Memcache for Windows 2008 and IIS Locked	Paul Lindgreen 4 Apr 2014	Alok Garg 2 Dec 2015	4
	sessions/locking in Moodle Locked	John Nowlan 2 Apr 2020	Howard Miller 2 Apr 2020	1
	Sessions on memcached? Locked	Dan Poltawski 17 June 2010	James McLean 21 June 2010	4
	Sessions in Database problem with Adodb Locked	Taylor Judd 17 Sept 2008	Wen Hao Chuang 25 Mar 2009	19
	Sessions in Database and memcached Locked	Colin Misbach 20 Jan 2016	Colin Misbach 21 Jan 2016	2
	Session Partition full and File store path not exist Locked	R Ali 9 May 2016	Just H 22 May 2016	4
	Session not passing to popup window Locked	Don Schwartz 6 Apr 2018	Howard Miller 10 Apr 2018	2
	Session lock issue , user unable to login Locked	Mohammed Abdul Azeem 24 Mar 2020	Visvanath Ratnaweera 24 Mar 2020	3
	Session handling: db vs moodledata clarification needed Locked	Matthew Goral 21 Aug 2014	Dharmendra Pundir 25 Sept 2014	10
	Session Handling Problem Locked	Aditya Dubay 10 Aug 2017	Jeff White 11 Aug 2017	4
	Servers, RAID, failover, etc. Locked	John Donaldson 2 Mar 2006	CHENG Alan 27 Jan 2010	31
	Servers and Hosting Locked	Thomas Bray 4 May 2004	James Sangster 13 May 2004	3
	Server2Go Locked	Art Lader 15 Jan 2006	David Morgan 21 Aug 2006	2
	Server very slow (Xampp1.5.4/Moodle1.6.2) Locked	Vitor Gonçalves 4 Oct 2006	Cândido Pereira 22 Oct 2006	13
	Server tweaks Locked	Richard Cackett 24 June 2011	Troo Don 24 Aug 2011	6
	Server Timeout?? Locked	Dustin Peet 17 Dec 2011	Visvanath Ratnaweera 20 Dec 2011	1
	Server suddenly uses all memory resources. Locked	Arnold Lamont 9 Sept 2013	Arnold Lamont 9 Sept 2013	0
	Server Stops with 160 Simultaneous Users Locked	Don Hinkelman 7 Apr 2004	Don Hinkelman 9 June 2005	18
	Server still running HIGH CPU Locked	Ryan Kelley 21 Oct 2009	Ryan Kelley 13 Nov 2009	21
	Server specs. question for Moodle migration (will this fit our requirements?) Locked	Lindsay John 4 May 2006	Arnor Kristjansson 15 Oct 2006	5
	Server specs Locked	Ahmed Nouh 23 May 2018	Visvanath Ratnaweera 2 June 2018	9
	Server specification for 18000 users moodle site Locked	Dr. Amitkumar Mali 21 July 2014	Itamar Tzadok 23 July 2014	12
	Server spec for large school 1800 users - help Locked	Graeme Morley 1 Dec 2005	Ravi Vare 22 Jan 2011	9
	Server Spec Locked	Gillian Comley 6 Oct 2004	Howard Miller 10 Oct 2004	1