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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
	Cron on a separate server Locked	Jai Gupta 1 July 2009	Jai Gupta 8 July 2009	14
	New platform for deploying Moodle Locked	Tim Hunt 28 June 2009	Tim Hunt 28 June 2009	0
	Insert into log table failed Locked	Panyarak Ngamsritragul 27 June 2009	Séverin Terrier 24 Sept 2009	5
	Apache memory handling: MaxMemFree Locked	Martín Langhoff 24 June 2009	Dan Poltawski 26 June 2009	1
	Moving to production Locked	Danny Yeshurun 22 June 2009	Visvanath Ratnaweera 22 June 2009	1
	apache2 vs lighttpd - take a second look Locked	Justin Haaga 19 June 2009	Justin Haaga 10 July 2009	19
	(Slow) Login Problems for Specific Users Locked	Sali Kaceli 16 June 2009	Sali Kaceli 29 Sept 2009	6
	Apache Configuration for 2000 Users for Quiz ?? Locked	Bipin Das 15 June 2009	Martín Langhoff 18 June 2009	13
	Preliminery observations for 100 concurrency test Locked	rupesh patil 12 June 2009	Rosario Carcò 19 Mar 2012	24
	Memcached/eA in Moodle 2.0 Locked	James McLean 12 June 2009	James McLean 16 June 2009	4
	Running both eAccelerator and memcached Locked	Luis de Vasconcelos 12 June 2009	Justin Haaga 12 June 2009	1
	Hardware Loadbalancer for Moodle Locked	Bipin Das 11 June 2009	Carlos Romero 15 June 2009	3
	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
	100% CPU Utilisation Locked	Angus Ogilvie 8 June 2009	Carlos Romero 15 June 2009	6
	Sizing policy Locked	Irati Abio 8 June 2009	Howard Miller 8 June 2009	1
	Frequent Connection Failures Locked	Keith Nelms 7 June 2009	Keith Nelms 7 June 2009	2
	database connection failed! Locked	Zahra E 6 June 2009	Justin Haaga 25 June 2009	8
	Virtual Hosting- Ubuntu Locked	Mike Rehner 5 June 2009	Mike Rehner 5 June 2009	0
	Moodle over 40 000 users Locked	Ângelo Rigo 4 June 2009	Carlos Romero 15 June 2009	2
	overloading mysql Locked	Zahra E 3 June 2009	Visvanath Ratnaweera 4 July 2009	8
	What do these numbers mean? Locked	Rob Monk 1 June 2009	Tiffany Morgan 2 June 2009	2
	Moodle Hosting Requirements Locked	Alain Marchant 31 May 2009	Glenys Hanson 15 July 2009	7
	Cleaning Up Moodle Data Locked	Dion Baker 28 May 2009	Dion Baker 9 June 2009	6
	Hardware Requirements for about 2000 simultaneous users Locked	yingqi liu 21 May 2009	Visvanath Ratnaweera 22 May 2009	1
	Moodle Scalability Challenge (WISP setup) Locked	Lee Mears 16 May 2009	L Cramer 19 May 2011	14
	Moodle packet sizes Locked	Luis de Vasconcelos 16 May 2009	Visvanath Ratnaweera 22 May 2009	6
	Apache crashes due to PHP out of memory error Locked	Mohan V 15 May 2009	Henning Bostelmann 20 Feb 2010	13
	Moodle on 64-bit machine - HP BL460 Locked	HJWUCGA INC. 12 May 2009	HJWUCGA INC. 12 May 2009	3
	How to increase the size of the uploaded files Locked	Ishraga Allam 10 May 2009	Bryan Williams 11 May 2009	3
	Upgrades Locked	Bill Meister 8 May 2009	Eric Hagley 8 May 2009	1
	Implications of using persistent connections Locked	Luis de Vasconcelos 8 May 2009	Luis de Vasconcelos 8 May 2009	0
	How do you promote your Moodle? Locked	Chia-chun Hsu 4 May 2009	Jeff Forssell 11 May 2009	1
	Some times files are not being uploaded.. getting bad page Locked	Miki Alliel 3 May 2009	Miki Alliel 3 May 2009	0
	THe best program for Video conferencing in MOODLE??? Locked	Tim Fanning 30 Apr 2009	Manuel Padilla Heredia 2 May 2009	3
	Xcache for windows server 2003 Locked	Mohan V 27 Apr 2009	Visvanath Ratnaweera 28 Apr 2009	1
	cannot download php_apc.dll for windows server Locked	Mohan V 23 Apr 2009	Bobby Snow 20 May 2009	6
	MySQL Cluster or Oracle options Locked	HJWUCGA INC. 22 Apr 2009	Gary Benner 4 June 2009	8
	WYSIWYG gone in forum using Safari 4 Locked	Julian ter Huurne 20 Apr 2009	Jonathan Moore 23 Apr 2009	5
	Help with MySQL ini files Locked	Wayne Lee 20 Apr 2009	Tadeu do Carmo Alves 27 Apr 2009	7
	Server Requirements - help with holiday homework Locked	Simon Borgert 17 Apr 2009	Simon Borgert 28 Apr 2009	2
	Desktop Requirements Locked	Chris Potter 9 Apr 2009	Chris Potter 9 Apr 2009	0
	Is Moodle Enterprise Ready? Locked	David Mark Weiss 9 Apr 2009	David Mark Weiss 10 Apr 2009	6
	Options for a Multiple Site Setup (40+) Locked	Ceri Richards 8 Apr 2009	Michael Penney 16 June 2009	13
	User peformance based on platform Locked	Tiffany Morgan 8 Apr 2009	Tiffany Morgan 16 Apr 2009	11
	General performance of file upload Locked	P P 5 Apr 2009	P P 5 Apr 2009	0
	Course disk usage Locked	Sebastián Espinosa 3 Apr 2009	Elvedin Trnjanin 13 Apr 2009	14
	Moodle Hosting, What do I need Locked	jonnym m 31 Mar 2009	E. L. Cooper 14 Apr 2009	14
	Chat - Server requirements Locked	Jeison Oliveira 31 Mar 2009	Jeison Oliveira 31 Mar 2009	0
	Help choosing a hosting solution Locked	A Gideon 31 Mar 2009	Robert Robinson 24 June 2009	56
	What a "state of art" machine does Locked	Visvanath Ratnaweera 29 Mar 2009	Martín Langhoff 31 Mar 2009	8
	Placement of custom php.ini within Moodle Locked	Jesus Padro 27 Mar 2009	Dakota Duff 27 Mar 2009	1
	Removing old user data Locked	Jamie Pratt 25 Mar 2009	Robert Brenstein 23 Apr 2009	1
	Server Admins: Spec Question Locked	Chai Nakpiban 25 Mar 2009	Visvanath Ratnaweera 29 Mar 2009	1
	Linux server - what version Locked	Heather P 24 Mar 2009	Bartosz Cisek 6 July 2009	12
	JMeter Scripts Locked	Ben Steeples 23 Mar 2009	Molin Men 31 July 2014	51
	choosing operating system for large installations Locked	Obidjon Yuldashev 18 Mar 2009	Robert Brenstein 18 Mar 2009	2
	Server Requirements: 200 simultaneous users Locked	Rosalyn Metz 18 Mar 2009	Elvedin Trnjanin 31 Mar 2009	10
	MySql Emergency!! Noobs in NEED!!!! Locked	Nina Kieninger 13 Mar 2009	Nina Kieninger 24 Mar 2009	6
	Reqrired frontend and backend specification required for about 100,000 user Locked	neama ageb 12 Mar 2009	Visvanath Ratnaweera 15 Mar 2009	7
	Moodle for 50,000 users? (was Re: Moodle Hosting Sites) Locked	David Brightbill 11 Mar 2009	Robert Brenstein 17 Mar 2009	1
	Concurrent Users Locked	Udit Sawhney 10 Mar 2009	Gary Anderson 15 Mar 2009	3
	Calendar's Performance Locked	Eugene Dest 9 Mar 2009	Eugene Dest 11 Mar 2009	3
	Tunning moodle+apache+mysql+php RHEL 5 Locked	Tadeu do Carmo Alves 9 Mar 2009	Tadeu do Carmo Alves 24 Mar 2009	15
	Statistics stupidly inefficient Locked	Bruce Webster 9 Mar 2009	Matteo Scaramuccia 22 Nov 2010	17
	Real database Usage multiple moodle sites Locked	Shimron Trammell 9 Mar 2009	Shimron Trammell 10 Mar 2009	2
	Almost Done Locked	Shimron Trammell 8 Mar 2009	Gary Benner 17 Mar 2009	9
	cron job aborted by provider causes collateral damage Locked	Pieter van der Hijden 7 Mar 2009	Howard Miller 7 Mar 2009	1
	500 concurrent users through multiple vps-s? Locked	Onno Schuit 6 Mar 2009	Howard Miller 24 May 2009	2
	New moodle.org Locked	Martin Dougiamas 4 Mar 2009	HJWUCGA INC. 15 July 2009	14
	Admin user logging into Moodle 1.9.4 behind a hardware load balancer Locked	Brad Marshall 3 Mar 2009	Brad Marshall 12 Mar 2009	5
	Maxiumum Simultaneous Users Locked	Alan Clegg 27 Feb 2009	Tim Hunt 2 Mar 2009	1
	Windows Install: XAMP or Regular Install Locked	Jasen Walker 25 Feb 2009	Jon Witts 26 Feb 2009	2
	Images missing after mod_gzip implimentation Locked	Steven O'Donnell 24 Feb 2009	Steven O'Donnell 25 Feb 2009	3
	Use of memcached in 2.0 Locked	Ashley Holman 20 Feb 2009	Petr Skoda 20 Feb 2009	1
	Restoring data files and work on Moodle Locked	DeLea Payne 19 Feb 2009	DeLea Payne 19 Feb 2009	0
	moodle server very slow for me Locked	jayaraj mohan 14 Feb 2009	Tadeu do Carmo Alves 16 Mar 2009	4
	Building clustered Moodle hosting environment how much Internet speed? Locked	Obidjon Yuldashev 13 Feb 2009	Henning Bostelmann 14 Feb 2009	1
	How to estimate Hardware Requirements Locked	ChanHan Hy 12 Feb 2009	Visvanath Ratnaweera 29 Mar 2009	1
	XML page can not be displayed. Locked	Tawfiqul Bari 11 Feb 2009	Tim Hunt 12 Feb 2009	7
	Slow Moodle Subwebs Locked	Roger Mepham 11 Feb 2009	Roger Mepham 11 Feb 2009	0
	Experiments in Performance Optimization Locked	Dakota Duff 10 Feb 2009	Dakota Duff 11 Feb 2009	4
	Apache crash Locked	Heather P 6 Feb 2009	Red Morris 10 Feb 2009	7
	hardware recommendations Locked	seth washeck 6 Feb 2009	Howard Miller 7 Feb 2009	3
	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
	Which modules does apache need Locked	Heather P 4 Feb 2009	Heather P 4 Feb 2009	0
	Looking for examples of really HUGE Moodle installations Locked	David Mudrák 4 Feb 2009	Dan Marsden 25 May 2009	16
	Apache Performance Locked	Jon Witts 4 Feb 2009	Jon Witts 10 Feb 2009	11
	Serious Performance Issues with 1.7 Locked	Mr. Marc 31 Jan 2009	Howard Miller 2 Feb 2009	6
	Mysql performance help Locked	cody ensanian 31 Jan 2009	Taylor Judd 4 Feb 2009	6
	Apache crashes due to PHP memory error Locked	Jade Tippett 29 Jan 2009	Jade Tippett 5 Feb 2009	14
	XML Error when logging to our development environment Locked	smrithi puli 29 Jan 2009	Tim Hunt 29 Jan 2009	1
	Hosted Linux moodle vs local Windows 2003 server Locked	John Bonner 28 Jan 2009	John Bonner 3 Feb 2009	4
	Windows Vista --Vs-- Windows XP Locked	Thomas Saccardi 28 Jan 2009	Thomas Saccardi 28 Jan 2009	0
	Test Load moodle Locked	Elio Wong 28 Jan 2009	Visvanath Ratnaweera 31 Jan 2009	1
	Internal hosting versus external hosting Locked	John Skelton 27 Jan 2009	Tim Hunt 28 Jan 2009	4
	Cron Execution can last 5+ hours Locked	Jamie E 21 Jan 2009	Martin Plummer 27 Oct 2009	10
	Basic Newbie Question Locked	Richard MacLemale 20 Jan 2009	Tim Hunt 6 Feb 2009	8
	Moodle.org server specifications Locked	Jordan Tomkinson 14 Jan 2009	Ebenezer Le Page 8 May 2009	18
	apache getting stuck Locked	vivin v 13 Jan 2009	Visvanath Ratnaweera 16 Jan 2009	1
	Migrating from Windows VM to Linux VM Locked	Scott Karren 8 Jan 2009	Visvanath Ratnaweera 16 Jan 2009	4