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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
	Performance problem leading to complete crash.. ON A SUPERCOMPUTER Locked	Etan Lightstone 31 Oct 2006	Ronnie Brito 1 Nov 2006	5
	Hardware requirements Locked	Antonio Almeida 28 Oct 2006	Antonio Almeida 31 Oct 2006	2
	Moodle performance and speed Locked	Nitesh Mittal 28 Oct 2006	Thomas Robb 28 Oct 2006	2
	Tuning a fedora 4.0 under a 4 proccesor & 16 GB RAM Locked	Mauricio Vergara 21 Sept 2006	Richie Foreman 27 Oct 2006	8
	Server RAM usage increases after some time without any request Locked	Noé Ortega Quijano 26 Oct 2006	Noé Ortega Quijano 26 Oct 2006	5
	Terrible Performance / Flooding Server??? Locked	Dan McDowell 8 Oct 2006	Colin McQueen 26 Oct 2006	8
	Can backup of data w/ 3rd party sw cause problems? Locked	Bob Majors 11 Oct 2006	Bob Majors 26 Oct 2006	5
	I need help!!!!!! Locked	Rodrigo Velazquez 25 Oct 2006	Rodrigo Velazquez 25 Oct 2006	2
	mysql Database Usage Locked	Doug Wolfe 18 Oct 2006	Doug Wolfe 24 Oct 2006	10
	Server very slow (Xampp1.5.4/Moodle1.6.2) Locked	Vitor Gonçalves 4 Oct 2006	Cândido Pereira 22 Oct 2006	13
	18,000 Users!! Locked	Jeff Kissinger 19 Oct 2006	Thomas Haynes 20 Oct 2006	4
	MoodleData folder Locked	Duarte Silvestre 17 Oct 2006	A. T. Wyatt 17 Oct 2006	3
	mdl_stats_daily Locked	Chris Kenniburg 21 Sept 2006	Susanne Lowry 17 Oct 2006	4
	Hardware Recommendations for Apache / PHP server Locked	Eric Henson 13 Oct 2006	Arnor Kristjansson 17 Oct 2006	9
	What size server Locked	Brendan Leahy 9 Oct 2006	Ralph Patterson 17 Oct 2006	13
	Server specs. question for Moodle migration (will this fit our requirements?) Locked	Lindsay John 4 May 2006	Arnor Kristjansson 15 Oct 2006	5
	High availability on moodle Locked	Visvanath Ratnaweera 15 Oct 2006	Visvanath Ratnaweera 15 Oct 2006	0
	Can't login after mysql 4.0 -> 4.1 upgrade Locked	Dan Katz 10 Oct 2006	Dan Katz 11 Oct 2006	3
	Moodle becomes inaccessible overnight Locked	Heather P 25 Aug 2006	Heather P 10 Oct 2006	9
	Storage requirements per course? Locked	David Clark 10 Oct 2006	Randy Obert 10 Oct 2006	1
	Moodle1.6.2+, script to migrate MySQL->Postgre? Locked	Noé Ortega Quijano 28 Sept 2006	Iñaki Arenaza 10 Oct 2006	8
	Webserver suspended after improper logout Locked	Philip Edwards 26 Sept 2006	Anthony Borrow 9 Oct 2006	2
	Troubles Locked	David Maynard 25 Jan 2006	Timothy Takemoto 9 Oct 2006	3
	installing turck mmcache using yum Locked	m y 5 Oct 2006	m y 6 Oct 2006	2
	Increasing apache capacity with moodle Locked	Marcos Montero 23 Sept 2006	Genner Cerna 6 Oct 2006	6
	My hosting is upgrading to MySQL 5, is my Moodle 1.5.4 site OK? Locked	Jesse Thorstad 2 Oct 2006	James Dugal 6 Oct 2006	5
	server OS Locked	Ralph Patterson 28 Sept 2006	Visvanath Ratnaweera 30 Sept 2006	5
	Moodle Implementation/Feasibility Study Locked	Tina Piper 29 Sept 2006	Visvanath Ratnaweera 29 Sept 2006	1
	Stats Cron Job Kills Server Locked	Glenn Black 12 Sept 2006	Ralph Patterson 28 Sept 2006	6
	Please help - Server Database Performance Problems Locked	Matthew Dumont 9 Sept 2006	Ralph Patterson 28 Sept 2006	7
	LAN config to minimise broadband use Locked	Jon Lunn 25 Sept 2006	Visvanath Ratnaweera 28 Sept 2006	4
	no access from inside network Locked	T.C. Chappelear 27 Sept 2006	Visvanath Ratnaweera 27 Sept 2006	2
	Cron error in Apache logs Locked	Philip Edwards 25 Sept 2006	Philip Edwards 25 Sept 2006	0
	Troubleshooting Linux Server (localhost vs www) Locked	Clint Walters 20 Sept 2006	Visvanath Ratnaweera 22 Sept 2006	2
	Upload File Size Sticking [Moodle 1.6.2] Locked	Gary Day 21 Sept 2006	Gary Day 21 Sept 2006	2
	Course Enrol Button Locked	David O'Brien 19 Sept 2006	Ken Wilson 21 Sept 2006	1
	Server Capacity? Locked	Fiona MacAlister 18 Sept 2006	Visvanath Ratnaweera 18 Sept 2006	1
	How long should cron take to execute on small site? Locked	Just H 15 Sept 2006	Just H 18 Sept 2006	4
	Ubuntu Cron Locked	Clint Walters 16 Sept 2006	Clive Gould 18 Sept 2006	5
	Turn Editing on for Course Categories very slow Locked	Clive Gould 6 Sept 2006	Clive Gould 16 Sept 2006	2
	Forbidden... Locked	Clint Walters 16 Sept 2006	Clint Walters 16 Sept 2006	1
	Moodle slow down - way down Locked	Patrick Malley 15 Sept 2006	Samuli Karevaara 15 Sept 2006	2
	Upload problems Locked	Mehmed Latifagic 12 Sept 2006	Iñaki Arenaza 12 Sept 2006	1
	apache crashing on standard Moodle.org XAMPP distribution Locked	Gary Anderson 12 Sept 2006	Gary Anderson 12 Sept 2006	0
	"1 Jan 1970, 08:00 AM" Problem everytime restart services or server :( Locked	Zaid Alsagoff 11 Sept 2006	Zaid Alsagoff 12 Sept 2006	6
	Installing Moodle 1.6 to ipowerweb. A little assistance please. Locked	Xavier Johnson 11 Aug 2006	Patrick Dierschke 12 Sept 2006	8
	Moodle 1.5.4. slowdown, repeating error Locked	Paul Nijbakker 8 Sept 2006	Paul Nijbakker 11 Sept 2006	2
	Chat presence indicator Locked	Philippe Scott 9 Sept 2006	Dan Stowell 11 Sept 2006	1
	Need to Tune Moodle Fast Locked	Simon Fraser 8 Sept 2006	Dr S Bhatia 9 Sept 2006	7
	Network/Internet Connection Lost after Dual Boot Rebuild Locked	Red Morris 5 Sept 2006	Henry Johnson 7 Sept 2006	6
	Script to test concurrent Moodle connections? Locked	Atanas Radenski 4 Sept 2006	Martín Langhoff 4 Sept 2006	3
	Apache performance issues Locked	tim harrison 29 Aug 2006	tim harrison 1 Sept 2006	6
	Pros and cons of different architectures Locked	Tim Thomas 28 Aug 2006	Brett Drinkwater 1 Sept 2006	11
	The 'Web Address' does not appear to be valid - this Moodle installation doesn't appear to be ... Locked	Chris Hussey 14 Aug 2006	Rick Boyce 1 Sept 2006	2
	Memory limit Locked	Jiri Zajic 25 Aug 2006	Iñaki Arenaza 31 Aug 2006	3
	Overloading server due to Cron on LINUX Locked	K.James Mathai 30 Aug 2006	Dan Stowell 30 Aug 2006	1
	stats_daily is HUGE Locked	Michael Johnson 23 Aug 2006	Penny Leach 28 Aug 2006	1
	php Accelerator (APC) help needed Locked	Henry Johnson 25 Aug 2006	Myles Carrick 27 Aug 2006	11
	file.php Locked	Nahum Silva 26 Aug 2006	Nahum Silva 26 Aug 2006	0
	some suggestions about server specs, please Locked	Gao Jun 25 Aug 2006	Gao Jun 25 Aug 2006	2
	Automated mysql backup using cpanel and php script Locked	Jason Hando 14 Aug 2006	Jan Dierckx 25 Aug 2006	2
	Can PC class machine support 250 concurrent users? Locked	fouzia imran 9 Aug 2006	Iñaki Arenaza 25 Aug 2006	22
	What do I need in a host? Locked	Deborah Van Horn 7 June 2006	Michael Penney 25 Aug 2006	6
	Dedicated Server or Linux Locked	Cindy Fajardo 24 Aug 2006	Richie Foreman 24 Aug 2006	4
	Count hits on my MOODLE site Locked	fouzia imran 9 Aug 2006	Heather P 24 Aug 2006	4
	JDBC requests problem in Apache JMeter Locked	Noé Ortega Quijano 21 Aug 2006	Noé Ortega Quijano 24 Aug 2006	1
	file permissions in moodle 1.6 Locked	Ed McLafferty 10 July 2006	Ed McLafferty 23 Aug 2006	6
	How much load can a single LAMP server take? Locked	Anthony Borrow 22 Aug 2006	Anthony Borrow 23 Aug 2006	3
	Server2Go Locked	Art Lader 15 Jan 2006	David Morgan 21 Aug 2006	2
	Apache keeps falling over Locked	Alistair Campbell 16 Aug 2006	Ken Wilson 17 Aug 2006	5
	php accelerator help... Locked	Genner Cerna 16 Mar 2005	Dipa Shah 17 Aug 2006	5
	PHP 5.0.4 or PHP 4.4 for Moodle 1.6 Locked	Carl Keil 28 June 2006	Ken Wilson 16 Aug 2006	6
	what response time should I expect from a host? Locked	Jocelyn Graf 14 Aug 2006	Samuli Karevaara 15 Aug 2006	2
	php accelerator Locked	Genner Cerna 4 July 2006	Anthony Borrow 11 Aug 2006	19
	Moodle Database Location Locked	Noé Ortega Quijano 9 Aug 2006	Tony Delahunty 9 Aug 2006	1
	need a script to auto restart the Apache services Locked	fouzia imran 4 Aug 2006	fouzia imran 9 Aug 2006	7
	Changing Hosting Locked	Rafa Chávez Ortega 9 Aug 2006	Randy Obert 9 Aug 2006	3
	Halt on Login - Return blank page Locked	A. H. 10 July 2006	Iñaki Arenaza 8 Aug 2006	16
	Hosting Moodle myself vs. Paid Moodle Host Locked	Paul Chor 3 Aug 2006	Visvanath Ratnaweera 6 Aug 2006	1
	New to Moodle - Kind of Lost Locked	T.C. Chappelear 4 Aug 2006	Richie Foreman 6 Aug 2006	3
	Moving Moodle Directory Locked	Chris Felinski 4 Aug 2006	Steve Hyndman 4 Aug 2006	1
	TCP Load Balancing Questions Locked	Richie Foreman 18 July 2006	Rory Allford 4 Aug 2006	12
	how much Bandwidth Moodle consume?? Locked	Christian Pazmino 3 Aug 2006	Randy Obert 4 Aug 2006	1
	Capacity Locked	Alison Wright 1 Aug 2006	Tom Ceresini 3 Aug 2006	6
	Exceeding 50,000 SQL querries per hour Locked	Andrew Palmer 28 July 2006	Visvanath Ratnaweera 31 July 2006	3
	Hosting Using 1&1 Uk Version Locked	Ed Huntsman 22 June 2006	David Brighton 27 July 2006	7
	Guide to Securing Your Moodle Server Locked	Jonathan Moore 9 Feb 2006	Richie Foreman 27 July 2006	18
	Moodle Performance Locked	Eugene Yap 19 July 2006	Kenny Backus 26 July 2006	7
	MySQL error Locked	Steven Geggie 19 July 2006	Ken Wilson 23 July 2006	1
	File upload problem Locked	Jaganmohan Kataru 21 July 2006	Iñaki Arenaza 22 July 2006	1
	MOODLE server for sale Locked	Dave Bethany 13 July 2006	Charlie Wilson 21 July 2006	11
	Need a good MySQL / Moodle consultant Locked	Steven Geggie 19 July 2006	Thomas Haynes 20 July 2006	3
	Variables page slow to load Locked	Mark Mills 17 July 2006	Mark Mills 18 July 2006	1
	Moodle/Joomla Load Testing Locked	Graeme Batsman 11 July 2006	Brett Drinkwater 15 July 2006	1
	Database issues Locked	Steven Geggie 15 July 2006	Steven Geggie 15 July 2006	1
	Stress test / benchmark chat module the SNMP way? Locked	Wen Hao Chuang 20 May 2006	Ross Foard 13 July 2006	5
	NO-IP And Apache integration Locked	Charlie Wilson 26 June 2006	Charlie Wilson 13 July 2006	8
	Apache Settings Locked	Rocco Lewis 13 Feb 2006	Randy Obert 12 July 2006	9
	Performance: zip, unzip and du beginner query Locked	Jenny Toller 30 June 2006	Helio Rocha 10 July 2006	3
	Moodle Server: unnecesary daemons Locked	Noé Ortega Quijano 7 July 2006	Maik Riecken 9 July 2006	1