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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
	Advice sought regarding Moodle configuration and performance issues Locked	Graeme Boxwell 12 Sept 2011	Graeme Boxwell 4 Oct 2011	2
	perfparse.pl updated to support Moodle 2.x Locked	Dan Poltawski 30 Sept 2011	Dan Poltawski 30 Sept 2011	0
	Quick Question: cURL Cache Locked	Deleted user 27 Sept 2011	Deleted user 27 Sept 2011	0
	2.1.1 /MySq - Database problem Locked	Vernellia Randall 27 Sept 2011	Tim Hunt 27 Sept 2011	2
	Is this server sufficient? Locked	Andrew Scanlon 22 Sept 2011	Andrew Scanlon 24 Sept 2011	2
	Advice requested for running Moodle 1.6 w MySQL Cluster Locked	kevin metcalf 25 Apr 2008	Christopher Medina 24 Sept 2011	7
	Windows server problems Locked	Mark Smith 21 Sept 2011	Visvanath Ratnaweera 23 Sept 2011	6
	Performance tuning Moodle on Windows/IIS with Output Caching Locked	Luis de Vasconcelos 22 Sept 2011	Luis de Vasconcelos 22 Sept 2011	0
	Remote and local access Locked	Nick Garrod 10 Sept 2011	Visvanath Ratnaweera 21 Sept 2011	3
	How to avoid DB overload? Locked	David Dunn 17 Sept 2011	Visvanath Ratnaweera 18 Sept 2011	1
	How many concurrent users can moodle handle without compromising on performance? Locked	Gaurav Kumar 16 Sept 2011	Gaurav Kumar 16 Sept 2011	2
	Hardware requirement for moodle Locked	Azmat Ullah 15 Sept 2011	Azmat Ullah 15 Sept 2011	0
	Moodle 2.1.1 Updated Courses Locked	Jim Cook 15 Sept 2011	Visvanath Ratnaweera 15 Sept 2011	2
	Database size / performance - Moodle 2.0.2 Locked	Class Virtual 14 Sept 2011	Class Virtual 14 Sept 2011	0
	Taking the VM Moodle online - how? Locked	Guido Gautsch 13 Sept 2011	Guido Gautsch 14 Sept 2011	2
	Moodle 2.1+ Server Requirement? Locked	Ya Borin 13 Sept 2011	Visvanath Ratnaweera 13 Sept 2011	1
	150 DB queries per lesson page - normal? Locked	Michael Cohn 12 Sept 2011	Tim Hunt 12 Sept 2011	1
	Moodle new install slow - FIXED - useful - help? Locked	jan Brogger 25 Jan 2008	Toan Dang 10 Sept 2011	3
	I want to run moodle for 150 people... Locked	hadyn ranson 3 Sept 2011	Marcus Green 4 Sept 2011	2
	Moodle performance testing: 1.9 vs. 2.0 Locked	Ruslan Kabalin 10 Nov 2010	Wen Hao Chuang 1 Sept 2011	25
	Slow Response – Download / Upload Locked	Mark Hardwick 29 Aug 2011	Visvanath Ratnaweera 30 Aug 2011	6
	how to add the theme of moodle 2.0+ to moodle 2.1+ Locked	yin bai 28 Aug 2011	yin bai 29 Aug 2011	2
	moodle 2.0.3 linux cluster Locked	marco polo 29 Aug 2011	Matteo Scaramuccia 29 Aug 2011	3
	php-speedy - any use in a LAMP environment and Moodle? Locked	Frankie Kam 28 Aug 2011	Troo Don 28 Aug 2011	1
	Requerimientos Hardware Locked	Luis Guachamín 23 Aug 2011	Visvanath Ratnaweera 27 Aug 2011	1
	Moodle 2 pluginfile.php performance Locked	Ben Graham 24 Aug 2011	Troo Don 27 Aug 2011	16
	Software compliance with AD 2008/ Exchange 2010 Locked	Al Bay 25 Aug 2011	Visvanath Ratnaweera 26 Aug 2011	1
	Server tweaks Locked	Richard Cackett 24 June 2011	Troo Don 24 Aug 2011	6
	How many users can access to this server? Locked	baris yuce 17 Aug 2011	Visvanath Ratnaweera 21 Aug 2011	1
	Storage Space Locked	Robin Hopz 19 Aug 2011	Howard Miller 21 Aug 2011	1
	Hosting for Moodle 1.9.x, 100 - 3000 users: Advice on specification and pricing Locked	Simon S 14 Aug 2011	Glenys Hanson 15 Aug 2011	4
	Move database to new server (?SAN?) Locked	steve farrow 12 Aug 2011	steve farrow 12 Aug 2011	0
	File Size in the Moodle Web Server Locked	Brian zhang 11 Aug 2011	sam marshall 11 Aug 2011	1
	Hostgator vs Siteground vs Keytomoodle, Any opinion? Locked	Jack Qadan 13 June 2011	Simon S 11 Aug 2011	3
	Moodle on Amazon cloud ELB Locked	Paul Walsh 10 Aug 2011	Paul Walsh 10 Aug 2011	2
	Creating a list of meaningful metrics to observe performance Locked	Jerry McAllister 5 Aug 2011	Jerry McAllister 10 Aug 2011	3
	Problem Submitting Quiz Locked	azam db 26 July 2011	Visvanath Ratnaweera 10 Aug 2011	1
	"file picker" problem and no pics Locked	abs tr4kt 5 Aug 2011	Visvanath Ratnaweera 5 Aug 2011	2
	Performance testing for framework cost only Locked	David Ackerman 29 July 2011	Visvanath Ratnaweera 5 Aug 2011	3
	Assignment Submissions Slow Down Locked	Anthony Borrow 7 Apr 2006	Genner Cerna 27 July 2011	6
	Problem with Module Auth is not readable, check ... Locked	marcos2 silva2 27 July 2011	marcos2 silva2 27 July 2011	0
	Nginx (fronteend) + Apache2 (backend) + Moodle Locked	Ricardo Caiado 27 Aug 2010	Antonio Estrada 26 July 2011	16
	many users can not login at the same time Locked	sara mdht 18 July 2011	Visvanath Ratnaweera 23 July 2011	2
	VPS Hosting for Moodle 1.9.x: Specification and Pricing Help Locked	Mehzeb Chowdhury 29 June 2011	Howard Miller 20 July 2011	3
	How many moodle installs on single server? Locked	Marius S 9 July 2011	Gary Benner 10 July 2011	1
	Upload to Moodle Locked	Sinziana Oncioiu 28 June 2011	Visvanath Ratnaweera 3 July 2011	1
	Hosting Issues Locked	Laura Crane 25 June 2011	Visvanath Ratnaweera 26 June 2011	3
	mysql gradebook performance poor Locked	John McNamara 20 June 2011	Tim Hunt 22 June 2011	3
	Teaching via satellite with Moodle and Moodle video server Locked	Gianfranco Picozzi 20 June 2011	Gianfranco Picozzi 20 June 2011	0
	Reducing size of MySQL ibdata1 file Locked	John Wells 17 June 2011	Taylor Judd 17 June 2011	1
	Missing File Extensions Locked	Bryan Smith 13 Sept 2010	Donna Hrynkiw 14 June 2011	3
	php register long arrays Locked	Heather P 13 June 2011	Heather P 13 June 2011	0
	Using Virtual Machine for Performance Testing Moodle Locked	Poornima Muthuraj 31 May 2011	Visvanath Ratnaweera 8 June 2011	3
	Adding new Moodle Server with load balancing Locked	Meganathan Ramasamy 31 May 2011	Visvanath Ratnaweera 3 June 2011	1
	Need recommendations for my.cnf configuration to support >=500 simultaneous Moodle accesses Locked	Pranata Ari 23 May 2011	Pranata Ari 30 May 2011	8
	Memory error Locked	dhileep s 18 May 2011	Visvanath Ratnaweera 24 May 2011	1
	APC PHP Accelerator in Moodle 1.9 Locked	Norman Drescher 23 May 2011	Visvanath Ratnaweera 24 May 2011	1
	Moodle Scalability Challenge (WISP setup) Locked	Lee Mears 16 May 2009	L Cramer 19 May 2011	14
	Two Moodle Web Servers... HELP! Locked	Kris Turner 18 Sept 2010	L Cramer 19 May 2011	20
	Response time issues - strace analysis help needed Locked	Chris Martel 6 Apr 2011	Daniel Tran 18 May 2011	7
	Receive automatic phone call when site is not available Locked	Micky Fokken 17 May 2011	Taylor Judd 17 May 2011	1
	Buying an in-house server Locked	Ben Archer 12 May 2011	Visvanath Ratnaweera 14 May 2011	5
	Installation of Language Lab on Moodle Locked	CL Winans 14 May 2011	CL Winans 14 May 2011	0
	Moodle logs to determine concurrent users Locked	Lev Abramov 13 May 2011	Lev Abramov 13 May 2011	2
	moodle on two different severs Locked	james aco 12 May 2011	Howard Miller 12 May 2011	1
	How to implement Load Balancer to support more concurrent users Locked	Vinoth Kumar L 6 May 2011	Visvanath Ratnaweera 11 May 2011	3
	Server configuration for Innodb Locked	hugo joe 6 May 2011	Visvanath Ratnaweera 11 May 2011	1
	Simultaneous users & Hosting? Locked	Jack Qadan 7 May 2011	Visvanath Ratnaweera 8 May 2011	3
	how to make templates Locked	shailendra pratap singh 2 May 2011	Visvanath Ratnaweera 5 May 2011	1
	[Warning] Aborted connection 56733 Locked	Tristan Rabine 19 Apr 2011	sakai user 4 May 2011	2
	Moodle and its PHP accelerator Locked	Adrien Viala 28 Apr 2011	Visvanath Ratnaweera 3 May 2011	2
	What server to use Locked	Tom Wootton 15 Apr 2011	Renaat Debleu 3 May 2011	6
	server configuration for 50000 concurrent users Locked	Bav V 16 Mar 2011	Guillermo Madero 2 May 2011	17
	Best my.cnf config Locked	Eric Hagley 25 Mar 2011	Frankie Kam 2 May 2011	6
	Problem with email servicie Locked	Sebastian Otero 1 May 2011	Visvanath Ratnaweera 1 May 2011	1
	1.9 is recommended? Locked	Kazue Matsuyama 27 Apr 2011	Visvanath Ratnaweera 27 Apr 2011	3
	Selecting hardware setup Locked	Nitin Nimkar 23 Apr 2011	Nitin Nimkar 26 Apr 2011	4
	Content Pre-positioning Locked	todd vainisi 20 Apr 2011	todd vainisi 21 Apr 2011	2
	How to Replicate MOODLE ??!! Locked	Hossam eldin Reda Ibrahim 14 Apr 2011	Henning Bostelmann 16 Apr 2011	5
	Slow query on course search.php Locked	Ângelo Rigo 8 Apr 2011	Visvanath Ratnaweera 9 Apr 2011	1
	Past Moodle Backup Logs Locked	Donna Hrynkiw 2 Apr 2011	Donna Hrynkiw 2 Apr 2011	0
	Nginx for our performance tweakers Locked	Visvanath Ratnaweera 22 Aug 2008	Jason O'Neil 31 Mar 2011	15
	Performance problems Moodle 1.9 vs. 2.0 Locked	Max Österman 28 Jan 2011	Daniel Nelson 26 Mar 2011	7
	Improve performance in moodle 2.0.2 Locked	Tiago Santos 18 Mar 2011	Visvanath Ratnaweera 23 Mar 2011	8
	Server Network Connection Speed Locked	John Williams 8 Jan 2008	Tom Harold 23 Mar 2011	4
	Best practices for MySQL Locked	Michael Melton 22 Mar 2011	Bartosz Cisek 23 Mar 2011	1
	Moodle Best Settings Locked	Sulaiman Hana Permana 23 Nov 2010	Visvanath Ratnaweera 19 Mar 2011	1
	MySQL vs MS SQL server Locked	CP Lau 17 Mar 2011	Visvanath Ratnaweera 18 Mar 2011	2
	MySQL vs MS SQL server Locked	CP Lau 15 Mar 2011	Bartosz Cisek 17 Mar 2011	1
	Cherokee Experience Locked	Manish Verma 6 Mar 2011	Troo Don 16 Mar 2011	3
	Slow query log Locked	jean-paul KIRKBRIDE 9 Mar 2011	jean-paul KIRKBRIDE 14 Mar 2011	13
	Most Secure Permissions of Moodle Files Locked	Timothy Takemoto 13 Dec 2005	nabil Lachheb 13 Mar 2011	10
	Linux fast load at school, slow load at home Locked	Wilson Kinscherf 6 Feb 2011	Rodolfo Matos 10 Mar 2011	5
	Re: Hardware requirements to support 1000 simultaneous quiz takers? (2nd case) Locked	Rama Krishnan 28 Feb 2011	Visvanath Ratnaweera 9 Mar 2011	7
	Moodle 2.0.2 using too much memory and too slow Locked	Mawuli Kuivi 24 Feb 2011	Mawuli Kuivi 26 Feb 2011	5
	Setup for 150k+ users, only 500 browsing users Locked	romain peridy 25 Feb 2011	romain peridy 25 Feb 2011	3
	Performance issue with 2.0 Locked	Laurent Michel 24 Feb 2011	Frankie Kam 24 Feb 2011	1
	Nginx Locked	Frankie Kam 7 Feb 2011	Jürgen Strobel 21 Feb 2011	12
	Quest for Speed Moodle 2.0 on bluehost Locked	Daniel Brouse 16 Feb 2011	Tim Hunt 16 Feb 2011	1
	Moodle freezes on too much database connections Locked	robin roovers 10 Feb 2011	Visvanath Ratnaweera 16 Feb 2011	6