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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
	Optmize Database Automatically Using Cron jobs for Unix Users Locked	D3SI Boy 28 Jan 2008	Martín Langhoff 29 Jan 2008	3
	Hosting Moodle on own computer Locked	Fred Frazelle 29 Jan 2008	Greg Hayden 30 Jan 2008	1
	Is our bandwidth used when users view embedded items? Locked	Patrick G 30 Jan 2008	Steve Hyndman 31 Jan 2008	4
	Moodledata at differennt server Locked	Mokrim Hassan 31 Jan 2008	Samuli Karevaara 31 Jan 2008	1
	CRITICAL PROBLEM WITH MOODLE HOSTING!!!! Locked	Carlos Morales Socorro 30 Nov 2007	Steve Hyndman 4 Feb 2008	29
	Final Specification Help Locked	UCHS Network 5 Feb 2008	Mark Hilliard 6 Feb 2008	2
	Comments on planned server hardware Locked	Jerico Tolentino 25 Jan 2008	Alex DePena 6 Feb 2008	16
	Moodle running in virtual server environment? Locked	Steve Reed 9 Feb 2008	Greg Hayden 11 Feb 2008	5
	any lighttpd experience Locked	Howard Miller 13 Feb 2008	Howard Miller 14 Feb 2008	6
	1.8 or 1.9? MySQL or PostgreSQL? Locked	Sergei Yegorov 7 Feb 2008	Sergei Yegorov 14 Feb 2008	11
	MOODLE muito Lento na minha CPU. Locked	Bruno Santos 13 Feb 2008	Wilker Melo 15 Feb 2008	1
	Synchronising 'moodledata' across load-balanced Moodle servers Locked	Adrian Barker 17 Dec 2007	Martin Dougiamas 15 Feb 2008	4
	Has anyone successfully implemented MDL-10995 accesslib.php patch in Moodle 182 ? Locked	Richard Kiely 15 Feb 2008	Richard Kiely 15 Feb 2008	2
	High RAM usage Locked	Kyle Brown 14 Feb 2008	Greg Hayden 16 Feb 2008	11
	apache crashing Locked	vivin v 6 Feb 2008	Mark Hilliard 16 Feb 2008	11
	eAccelerator not being detected by Moodle? Locked	Charlie Owen 10 Dec 2007	Gary Anderson 21 Feb 2008	5
	Eaccelerator - Very high load - blank pages -URGENT Locked	A. H. 20 Feb 2008	A. H. 21 Feb 2008	4
	Quick quesion about enable performance info option in Server -> Debugging -> Performance info" Locked	Wen Hao Chuang 23 Feb 2008	Iñaki Arenaza 23 Feb 2008	1
	Slowness, DB errors, and admin question Locked	Jon Skulski 27 Feb 2008	Samuli Karevaara 27 Feb 2008	4
	clone moodle installation Locked	Ruban Jayathas 26 Feb 2008	Visvanath Ratnaweera 29 Feb 2008	2
	Server Host options for School District? Locked	Melissa Benson 2 Feb 2008	Dan Trockman 2 Mar 2008	18
	How to config Chat demon in a cluster? Locked	Israel Forés 3 Mar 2008	Israel Forés 3 Mar 2008	0
	Performance Problem in Moodle 1.9 Locked	Haris Siempos 26 Feb 2008	Matt Gibson 3 Mar 2008	6
	Suggestion for Enterprise architecture for environment Locked	HJWUCGA INC. 2 Mar 2008	Chris Potter 11 Mar 2008	3
	log # of concurrent users Locked	Andrew O'Brien 13 Mar 2008	Maik Riecken 13 Mar 2008	2
	New Apple Hardware New Install Locked	UCHS Network 1 Feb 2008	Dan Trockman 17 Mar 2008	8
	Moodle Hacked? Locked	Lance Hinds 18 Mar 2008	Matt Gibson 20 Mar 2008	5
	RHEL 5 Server - Setup/Configuration Advice Locked	Anthony Borrow 14 Jan 2008	Anthony Borrow 23 Mar 2008	8
	Moodle site management tool Locked	Simon Britton 26 Mar 2008	Dan Poltawski 26 Mar 2008	3
	MyISAM to InnoDB Locked	Martin Dougiamas 23 Sep 2004	Ken Wilson 29 Mar 2008	20
	Connection timed out Locked	tony deprato 5 Apr 2008	Norbert Berger 5 Apr 2008	1
	Long load time for moodle on server Locked	Omer Simanovsky 7 Apr 2008	Myles Carrick 8 Apr 2008	1
	Read-Only Moodle, tuning for speed? Locked	David Scotson 8 Apr 2008	David Scotson 8 Apr 2008	0
	Moodle on a NAS ie DS207+ Locked	Hans B0s 13 Apr 2008	Hans B0s 14 Apr 2008	2
	A Giant Query of 1.8 + Locked	Jai Gupta 11 Jun 2007	Dean Thayer 15 Apr 2008	16
	1.9 - Statistics running all day Locked	Mark Schumann 15 Apr 2008	Mark Schumann 15 Apr 2008	0
	How Moodle handles multiple users Locked	Tristan Deane 17 Apr 2008	Tim Hunt 18 Apr 2008	1
	Live CD Locked	Miles Berry 1 Aug 2005	Max De Mendizábal 19 Apr 2008	11
	WHM & server transfer of Moodle sites Locked	jobe jobe 22 Apr 2008	jobe jobe 22 Apr 2008	0
	Modify error:Database connection failed Locked	Jacques Guiffo 29 Apr 2008	Jacques Guiffo 30 Apr 2008	2
	Planning new server hardware; and deciding between WAMP & LAMP Locked	Bob Majors 15 Jan 2008	Visvanath Ratnaweera 1 May 2008	17
	Virtual client/server testing Locked	M Adeel 24 Apr 2008	Visvanath Ratnaweera 1 May 2008	1
	Database Connection - beginner`s questions Locked	Márcio Vilaça 2 May 2008	Myles Carrick 5 May 2008	4
	about the installation of moodle Locked	vlodia cannon 4 Nov 2007	Myles Carrick 5 May 2008	3
	Testing Moodle capacity Locked	Rey Ong 25 Apr 2008	Ixbalanque Millan 6 May 2008	6
	Damn Small Linux Locked	M Y 5 Feb 2006	Visvanath Ratnaweera 6 May 2008	4
	Need specs for a Small Rollout. Locked	Greg Ashauer 25 Apr 2008	Visvanath Ratnaweera 7 May 2008	4
	specing servers and DMZ Locked	Matthew Hargraves 1 May 2008	Visvanath Ratnaweera 7 May 2008	1
	Mirroring moodle between two servers Locked	Phil Hopfner 7 May 2008	Jonathan Moore 8 May 2008	5
	Moodle in the Cloud Locked	Wilfred Wright 11 Apr 2008	Rene Folse 9 May 2008	1
	'normal' and 'good' load times? Locked	Lael ... 24 Apr 2008	Lael ... 14 May 2008	13
	Cron.php really slow Locked	Rob Hudson 14 May 2008	Rob Hudson 14 May 2008	0
	Hardware & Software to run Moodle Locked	Steve Hill 13 May 2008	Steve Hill 17 May 2008	5
	Slow Moodle in Virtual Environment Locked	Andrew Eickstead 16 May 2008	Jonathan Moore 17 May 2008	1
	Multiple Moodle sites on a server cluster Locked	Manfred Deller 15 May 2008	Valery Fremaux 17 May 2008	4
	Scaling a Local Education Authority System? Locked	Edward Pryce 22 May 2008	Dan Poltawski 29 May 2008	4
	Moodle hosting cost and time Locked	Scott Karren 22 May 2008	Scott Karren 2 Jun 2008	7
	Worried about the performance of our moodle server ! Locked	Steve Audus 7 Jun 2008	Steve Audus 9 Jun 2008	3
	Vista testers needed please Locked	Darrel Tenter 11 Jun 2008	Visvanath Ratnaweera 16 Jun 2008	3
	Performance of modle Locked	Jader Menezes 6 Jun 2008	Visvanath Ratnaweera 16 Jun 2008	1
	SUSE Linux with XEN and Moodle Locked	dan Krajewski 4 Jun 2008	Visvanath Ratnaweera 18 Jun 2008	4
	Moving to Moodle - Looking For Advice on Server Setup Locked	Simon Boddy 17 Jun 2008	Simon Boddy 18 Jun 2008	4
	Moodle Bloat. Locked	Peter Vitez 16 Jun 2008	Martin Dougiamas 19 Jun 2008	6
	SWF File loading is too slow Locked	Abbas Shaikh 4 Jun 2008	E. L. Cooper 19 Jun 2008	2
	High Availability Moodle Locked	Howard Miller 2 Jun 2008	Valery Fremaux 20 Jun 2008	3
	Scaleablity of Moodle Locked	Theo Stone 25 Jan 2004	Vipen Mahajan 21 Jun 2008	14
	Hardware Specs Locked	Rahim Virani 19 Jan 2007	Sumit Batra 24 Jun 2008	5
	hosting options Locked	Jennifer Claro 16 Jun 2008	Gary Benner 25 Jun 2008	17
	site loading slowly and sometime I get database connection failed Locked	Mr. Shortcut 5 May 2007	Đặng Quang Hùng 25 Jun 2008	30
	CSS often fails on IE6/7 (but not FF) Locked	Shaun Daubney 1 Jul 2008	Shaun Daubney 1 Jul 2008	0
	Error: Database connection failed Locked	Chad Outten 1 Mar 2008	Rob Hudson 4 Jul 2008	6
	Removing Old Records Locked	Carl Keller 5 Jul 2008	Carl Keller 5 Jul 2008	0
	OSX server performance issues Locked	Darrell Kim 15 Nov 2007	Marty Sharpe 9 Jul 2008	7
	SCORM responsiveness - too slow. Locked	Thomas Tyson 19 Jun 2008	Todd Thornton 10 Jul 2008	2
	Moodle and pgpool Locked	Tak Auyeung 24 Mar 2008	Penny Leach 17 Jul 2008	7
	Worried about the performance of our moodle server ! Continued... Locked	Steve Audus 18 Jun 2008	Myles Carrick 21 Jul 2008	2
	Dual Dual Xeon's or Dual Quad Harpertowns Locked	Todd Thornton 22 Jul 2008	Sojiro Sato 22 Jul 2008	1
	Many unauthenticated user, writing to net after using show processlist command Locked	Đặng Quang Hùng 18 Jun 2008	Tariq Adel Al Ammadi 23 Jul 2008	6
	New roll out for approx 250 concurrent users Locked	philip jones 29 Jul 2008	Eric Novikoff 31 Jul 2008	4
	porting Linux Moodle to Windows Moodle Locked	Steve Peters 19 Jul 2008	Ken Wilson 3 Aug 2008	10
	memory_limit - server error Locked	jobe jobe 12 Jun 2008	John Rodkey 6 Aug 2008	5
	Tool to estimate server's maximum concurrent users Locked	Anthony Wright 9 Aug 2008	Visvanath Ratnaweera 10 Aug 2008	3
	Our Moodle Site Slow Over Internet Locked	Reynard Cobham 19 Jun 2008	Jamie Robe 12 Aug 2008	10
	Multiple installations vs One installation Locked	portable jim 18 Aug 2008	Michael Penney 18 Aug 2008	1
	Moodle 1.9 Very Slow When Creating New Courses Locked	Dave Townend 21 Aug 2008	Ken Wilson 25 Aug 2008	3
	Moodle 1.8+ Poor server response time Locked	todd vainisi 20 Aug 2008	todd vainisi 26 Aug 2008	3
	error database failed Locked	Barbara Schroeder 26 Aug 2008	Visvanath Ratnaweera 26 Aug 2008	2
	Great writeup on Linux disk tuning for DB servers... Locked	Martín Langhoff 4 Aug 2008	Lei Zhang 27 Aug 2008	1
	Content Compression Locked	Lei Zhang 27 Aug 2008	Visvanath Ratnaweera 28 Aug 2008	2
	Using applets java in moodle Locked	Ayari Cuevas 31 Aug 2008	Ayari Cuevas 1 Sep 2008	2
	Benchmarking MySQL for Moodle Locked	Manuel de la Torre 1 Sep 2008	Visvanath Ratnaweera 2 Sep 2008	1
	PHP time() returns inconsistent values Locked	David Hoffmann 5 Sep 2008	David Hoffmann 5 Sep 2008	2
	OS 10.5 Server and PHP Acceleration Locked	Richard MacLemale 28 May 2008	Dan Trockman 16 Sep 2008	7
	Linux/DB suggestions for home 1.9 server Locked	greg mushial 6 Sep 2008	Kent Villard 17 Sep 2008	3
	Login process hanging Locked	Robert Drew 17 Sep 2008	Robert Drew 17 Sep 2008	0
	Performance for external database enrolment Locked	Ângelo Rigo 23 Sep 2008	Ângelo Rigo 23 Sep 2008	0
	Performance issues with a fresh 1.9 install Locked	Kent Villard 4 Sep 2008	Tim Hunt 26 Sep 2008	4
	Server Cluster & Performance Monitoring Locked	Andrew Bailey 2 Oct 2008	Visvanath Ratnaweera 3 Oct 2008	2
	A little more perspective ... a module Locked	Hugh Morrow 23 Sep 2008	Hugh Morrow 3 Oct 2008	4
	Big Moodle installation with two different approaches Locked	Khaled Zamani 3 Oct 2008	Khaled Zamani 5 Oct 2008	3