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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 3216 discussions
Status	Discussion	Started by	Last post	Replies	Actions
	Moodledata using clusters Locked	Ângelo Rigo 17 Nov 2010	Chris Fryer 11 Feb 2011	4
	My Moodle site runs really slow in the computer lab; home users are okay Locked	Frankie Kam 5 Jan 2011	Visvanath Ratnaweera 11 Feb 2011	15
	Bluehost.com Locked	Alaa Elkholy 9 Feb 2011	Visvanath Ratnaweera 10 Feb 2011	2
	Question Locked	Vladimir Sarovic 10 Feb 2011	Claude Whitmyer 10 Feb 2011	1
	I modified /etc/my.cnf to optimize my SQL Queries - led to Plesk problem. So how can I optimize ... Locked	Frankie Kam 11 Jan 2011	Alex Atkinson 7 Feb 2011	5
	Specifications Moodle Server 8000 user Locked	abdallah abualia 3 Feb 2011	Visvanath Ratnaweera 4 Feb 2011	1
	Slow Load times and Freezes Locked	Aaron Czarnecki 19 Jan 2011	Aaron Czarnecki 4 Feb 2011	4
	Load balancer Locked	Shin Hiorie 19 Jan 2011	Visvanath Ratnaweera 30 Jan 2011	12
	Theme counts and performance hits Locked	Jeffrey Jones 28 Jan 2011	Jeffrey Jones 28 Jan 2011	2
	Trying to implement “far-future expiration date” for static files in Centos 5. Doesn't WANT to ... Locked	Frankie Kam 24 Jan 2011	Frankie Kam 26 Jan 2011	5
	Why I am so HAPPY today..make me happier? Locked	Frankie Kam 15 Jan 2011	Frankie Kam 26 Jan 2011	9
	Server spec for large school 1800 users - help Locked	Graeme Morley 1 Dec 2005	Ravi Vare 22 Jan 2011	9
	idnumber=NULL in mdl_course_modules Locked	Bente Olsen 19 Jan 2011	Bente Olsen 20 Jan 2011	2
	MariaDB and Moodle Locked	Monico Briseño 18 Jan 2011	Monico Briseño 19 Jan 2011	2
	Intermitant Performance Issue Locked	Ed Farmer 15 Jan 2011	Visvanath Ratnaweera 19 Jan 2011	6
	How to install Munin Resource Graphs on your Centos Server Locked	Frankie Kam 17 Jan 2011	Monico Briseño 18 Jan 2011	1
	Apache: Track simultaneous connections? Locked	Micky Fokken 11 Jan 2011	Micky Fokken 17 Jan 2011	3
	Why are we running so slowly? Locked	d morte 6 Oct 2010	Bartosz Cisek 14 Jan 2011	20
	Moodle website performance tuning Locked	jimmy Octavious 20 Dec 2010	Frankie Kam 13 Jan 2011	7
	Upgrading to 1.6 and may need to switch to PostgreSQL Locked	Andrew Steele 5 July 2006	Dan Marsden 13 Jan 2011	19
	My crazy list of modules, blocks and filters that I have installed on my site Locked	Frankie Kam 11 Jan 2011	Frankie Kam 12 Jan 2011	2
	Hardware requirements for 50 students Locked	Rafael Chacon 6 Jan 2011	Visvanath Ratnaweera 10 Jan 2011	3
	Question about file handling and Moodle 2.0 Locked	John Schilling 1 July 2010	Colin Fraser 31 Dec 2010	9
	New e-peen script! Er, I mean, system performance analyser Locked	sam marshall 14 Nov 2010	AL Rachels 25 Dec 2010	12
	Yea.. More sessions questions. Locked	sakai user 23 Dec 2010	sakai user 23 Dec 2010	0
	Memcache on Moodle 2.0 Locked	Peter Goodhall 20 Dec 2010	sakai user 22 Dec 2010	1
	Quizzes : performance on exams period Locked	Susana L. 12 May 2010	Susana L. 16 Dec 2010	39
	Hardware requirements to support 1000 simultaneous quiz takers? Locked	Chris Akus 19 Nov 2010	Darko Miletić 15 Dec 2010	19
	Moodle Hosting Sites Locked	Steve Wu 14 Mar 2006	Claude Whitmyer 14 Dec 2010	19
	What are you running & support Locked	John Dlugosz 8 Dec 2010	Tim Hunt 11 Dec 2010	4
	Will Moodle run well on a Zeus server? Locked	John Bonner 26 Aug 2009	John Bonner 5 Dec 2010	9
	Input on Large Scale Install 30,000+ users Locked	Timothy Guy 3 Dec 2010	Ricardo Caiado 4 Dec 2010	8
	Moodle Performance Concern Locked	Jody Florian 3 Dec 2010	Tim Hunt 4 Dec 2010	2
	FREE HOSTING TO MY MOODLE Locked	Juan Martinez 21 Jan 2004	sandeep verma 3 Dec 2010	12
	Usign internal cachetype Locked	Ângelo Rigo 23 Nov 2010	Bartosz Cisek 2 Dec 2010	5
	Performance problemas with large mdl_log Locked	Ewout ter Haar 26 Nov 2010	Ewout ter Haar 30 Nov 2010	2
	mod_pagespeed with moodle Locked	Gain Oloya 23 Nov 2010	Ricardo Caiado 23 Nov 2010	1
	Statistics stupidly inefficient Locked	Bruce Webster 9 Mar 2009	Matteo Scaramuccia 22 Nov 2010	17
	Using Oracle database and SAIP for large University ? Locked	Raphaël Godue 30 Oct 2010	Zulma Alvarado 20 Nov 2010	2
	BIG (Moodle Site Size) Problem Locked	Jon Fila 17 Nov 2010	Séverin Terrier 18 Nov 2010	7
	Hardware requirement Locked	Daniel Tan 15 Nov 2010	Daniel Tan 15 Nov 2010	0
	uploaduser.php performance - can it be improved? Locked	Stewart Hutton 14 Nov 2010	Stewart Hutton 14 Nov 2010	0
	Advice Needed for New Moodle Setup for 4 Primary Schools Locked	Mark Jackson 8 Nov 2010	Visvanath Ratnaweera 10 Nov 2010	3
	Stats problems again - new bug in Moodle 1.9.2? Locked	Tony Butler 21 Aug 2008	Matteo Scaramuccia 10 Nov 2010	22
	Preferred method of converting MyISAM to InnoDB Locked	HJWUCGA INC. 17 Sept 2009	Stephen Bloomer 10 Nov 2010	26
	PHP Sticky Session Clustering Locked	Ali Ghorbani Moghadam 26 Aug 2010	Tim Hunt 9 Nov 2010	11
	InnoDB cash hit ratio, Moodle 1.9.3 Server hangs Locked	Doug Renz 5 Nov 2010	Bartosz Cisek 6 Nov 2010	1
	Some basic info needed for using Moodle Locked	David Friedberg 29 Oct 2010	Visvanath Ratnaweera 5 Nov 2010	2
	Stats affecting server Locked	Dave Cuttriss 25 Oct 2010	Visvanath Ratnaweera 29 Oct 2010	2
	php quiz module deduplication for lower memory bandwidth Locked	James Salsman 21 Sept 2010	sam marshall 29 Oct 2010	11
	Hardware requirements for 12000+ user moodle site Locked	Nathsahib Narale 28 Oct 2010	Tim Hunt 29 Oct 2010	4
	basic questions about hosting and choose the company Locked	alain madec 26 May 2008	gerard manvu 29 Oct 2010	5
	Rule of thumb for sizing Moodle servers Locked	Gary Weinstein 25 Jan 2008	Fouzi Sukhilala 26 Oct 2010	8
	Quizzes : performance on exams period, randomizing questions Locked	Anthony James 21 Oct 2010	Tim Hunt 22 Oct 2010	13
	bitnami stack moodle on laptop i.p. occupied Locked	ben reynolds 9 Oct 2010	ben reynolds 21 Oct 2010	5
	moodledata on separate server? Locked	Susan Mangan 16 Oct 2010	sam marshall 18 Oct 2010	4
	Can you help me with a hardware reccomendation Locked	Brad Hess 14 Oct 2010	Visvanath Ratnaweera 17 Oct 2010	1
	Adding extra hard drive memory & does Moodle automatically detect it? Locked	Eric Hagley 8 Oct 2010	Visvanath Ratnaweera 9 Oct 2010	1
	Performance problem in deploying Moodle using LAN based server Locked	Mehwish Leghari 6 Oct 2010	Cesar Sanchez 7 Oct 2010	7
	Server Alert Locked	Jon Fila 7 Oct 2010	Jon Fila 7 Oct 2010	0
	moodle on godaddy hosting - very slow, errors Locked	marc helfano 17 Sept 2010	Jon Fila 7 Oct 2010	5
	Moodle.org platform Locked	Bob Puffer 5 Oct 2010	Jordan Tomkinson 6 Oct 2010	7
	Deployment Question Locked	Suzanne Bogovich 5 Oct 2010	Visvanath Ratnaweera 6 Oct 2010	3
	moodle is crawling Locked	chandrika harathi 27 Sept 2010	Visvanath Ratnaweera 5 Oct 2010	2
	Shopping for a new server Locked	Eric Hagley 20 May 2008	Eric Hagley 1 Oct 2010	14
	A case of a very big moodle installation. Locked	Cesar Sanchez 25 Sept 2010	Cesar Sanchez 1 Oct 2010	10
	MOODLE fail to load styles.php over wireless Locked	chris john 30 Sept 2010	chris john 30 Sept 2010	0
	Bandwidth Requirements? Locked	Alex Penfold 28 Sept 2010	Alex Penfold 29 Sept 2010	3
	Midnight performance, httpd spawns too many workers? Locked	Robert Minvielle 27 Sept 2010	Matteo Scaramuccia 27 Sept 2010	1
	Time Off In Logs Locked	Kris Turner 24 Sept 2010	Howard Miller 27 Sept 2010	1
	Intel Atom D510 as Dedicated Server? Locked	James Nolan 20 Sept 2010	James Nolan 20 Sept 2010	0
	Postgres cluster function Locked	John Coughlin 16 Aug 2010	John Coughlin 16 Sept 2010	5
	Hosting Moodle: how to define for a quote? Locked	Derek Chirnside 27 Aug 2010	Paul Vaughan 16 Sept 2010	9
	To virtualize or not? Locked	catherine walker 16 Sept 2010	Visvanath Ratnaweera 16 Sept 2010	1
	httpd2-prefork high cpu utilization Locked	Aaron Kovacich 15 Sept 2010	Jordan Tomkinson 16 Sept 2010	2
	Moodle Server with load balancing Locked	Meganathan Ramasamy 11 Sept 2010	Henning Bostelmann 15 Sept 2010	6
	rearranging course categories is very slow Locked	Tobias Marx 21 Aug 2007	Rosario Carcò 13 Sept 2010	26
	Moodle performance using open_basedir Locked	Jan Suchanek 2 Sept 2010	Howard Miller 6 Sept 2010	4
	Server Requirements for large Moodle Deployment up to 40k users with500 concurrent scalable to ... Locked	Steve Beitzell 27 Aug 2010	Visvanath Ratnaweera 31 Aug 2010	3
	javascript error in ie7 on the first page of the site Locked	Irith Herman 27 Aug 2010	Irith Herman 27 Aug 2010	0
	Hosting Service that Supports Moodle? Locked	Andy Rota 26 Aug 2010	Andy Rota 26 Aug 2010	2
	Server for Moodle and Mahara Locked	Sulaiman Hana Permana 25 Aug 2010	Visvanath Ratnaweera 25 Aug 2010	1
	Load-balanced web servers and cron.php Locked	David Webber 23 Aug 2010	Visvanath Ratnaweera 24 Aug 2010	4
	Upload speed requirement Locked	Johannes Solymosi 21 Aug 2010	Visvanath Ratnaweera 22 Aug 2010	7
	Server configuration requirement help Locked	Shyam S 5 Aug 2010	Jon Witts 6 Aug 2010	4
	KIOSK Based Moodle Locked	Manu Sharma 5 Aug 2010	Marc Grober 6 Aug 2010	3
	Communication time between modules and time of execution Locked	Artur Zacniewski 28 July 2010	Dale Davies 30 July 2010	4
	The standed hardware req help Locked	Michael Melton 23 July 2010	Visvanath Ratnaweera 29 July 2010	8
	Moodle for Windows on a USB Stick Locked	Brett Drinkwater 12 May 2006	ben reynolds 29 July 2010	37
	Moodle performance very slow Locked	Globe College 25 June 2010	hostmaked gmail 24 July 2010	9
	New Moodler User - Hardware Necessary Locked	Megan Calhoun 10 July 2010	Visvanath Ratnaweera 13 July 2010	4
	Poor performance and connection timeouts (Media Temple) Locked	T Strait 12 July 2010	George Dickens 13 July 2010	3
	Windows Server 2008 and Moodle cluster Locked	Lee Procter 17 Nov 2009	Keshwar White 10 July 2010	3
	Doubt about the best configuration of the server for Moodle Locked	Vianei Mayolo 26 June 2010	Vianei Mayolo 9 July 2010	3
	Online users block - performance Locked	Susana L. 7 July 2010	Susana L. 8 July 2010	2
	Ability to run Moodle Tracking on CD? Locked	Lorrie Whitacre 1 July 2010	Dale Davies 5 July 2010	3
	Speed up moodle Locked	Ashish Khatavkar 25 June 2010	Howard Miller 29 June 2010	4
	Problem zipping & unzipping on the server Locked	Ted Max 25 June 2010	Ted Max 26 June 2010	3
	site logs Locked	John Roughley 11 June 2010	Bartosz Cisek 25 June 2010	1
	Serious Performance hit on login & user profiles Locked	Michael Hughes 18 June 2010	Bartosz Cisek 25 June 2010	1