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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
	Hardware Specs Locked	Rahim Virani 19 Jan 2007	Sumit Batra 24 June 2008	5
	Mirroring /Replication Locked	Jan Willem Smeenk 19 Jan 2007	Visvanath Ratnaweera 30 Nov 2012	6
	SMTP question Locked	Manuel de la Torre 21 Jan 2007	Anthony Borrow 22 Jan 2007	3
	eAccelerator vs. APC Locked	Ralph Patterson 21 Jan 2007	Genner Cerna 19 Mar 2007	23
	Anyone Using MSSQL? Locked	Aaron Smith 23 Jan 2007	Aaron Smith 24 Jan 2007	2
	Connecting different servers Locked	Abhinav arya 23 Jan 2007	Visvanath Ratnaweera 25 Jan 2007	1
	Using Moodle on Student Workstations Locked	R Jay 24 Jan 2007	R Jay 21 Feb 2007	5
	Loading Time Locked	Chris Felinski 24 Jan 2007	Visvanath Ratnaweera 6 Feb 2007	10
	Requirements Moodle 1.7 Locked	Valérian G 30 Jan 2007	Valérian G 12 Feb 2007	2
	moodle on a vps? Locked	Erik Ringmar 2 Feb 2007	Richie Foreman 3 Feb 2007	2
	I have Two Choices on Servers...Opinions Locked	tony deprato 4 Feb 2007	Eric Malone 6 Feb 2007	3
	database making course load very slow Locked	Nicola Bennett 5 Feb 2007	Ken Wilson 18 Feb 2007	1
	Software to test Website under WinXP Locked	paul rayner 9 Feb 2007	Grant Carmichael 22 Feb 2007	2
	VMWare: Any problems with ESX? Locked	Tim Nelson 13 Feb 2007	Taylor Judd 5 Nov 2008	7
	Specs on a 125 users Moodle platform. (Need info please) Locked	Mauro Ramón 16 Feb 2007	Visvanath Ratnaweera 22 May 2007	3
	Resources that actually go through the moodle server Locked	Eric Carlson 16 Feb 2007	Grant Carmichael 22 Feb 2007	3
	Anyone notice a considerable performance difference with IE vs Firefox? Locked	Ross Hendricks 22 Feb 2007	Cristi Ionescu 28 Feb 2007	2
	High CPU usage on Windows Platform Locked	SF Lee 22 Feb 2007	Visvanath Ratnaweera 23 Feb 2007	2
	Chat is too slow Locked	Romain D. 24 Feb 2007	Bill Michaelson 11 Mar 2007	5
	Main Upgrade failed! See lib/db/upgrade.php Locked	kathy hooper 1 Mar 2007	kathy hooper 1 Mar 2007	0
	Browsers Locked	sheila jagannathan 2 Mar 2007	Pam Redpath 9 Feb 2014	5
	What is doing Moodle ? Our experience with tests and some questions Locked	Nicolas Sicard 6 Mar 2007	Maik Riecken 15 Mar 2007	8
	Moodle 1.7.1 performance problems. Locked	Luciano Rodriguez 8 Mar 2007	Don Hinkelman 8 Apr 2007	8
	xampp windows installation package issues Locked	Michael Rodgers 12 Mar 2007	Michael Rodgers 12 Mar 2007	0
	Hosting para Moodle Locked	Luis NL 15 Mar 2007	Luciano Rodriguez 15 Mar 2007	1
	Page Loading is too Slow Locked	Hamid Takesh 15 Mar 2007	Genner Cerna 23 Mar 2007	5
	HA Cluster without a NAS and Moodle Locked	Eric Schewe 20 Mar 2007	Visvanath Ratnaweera 20 Mar 2007	1
	Wanting to test with mysql 4.0.27 Locked	Dominic Santistevan 23 Mar 2007	Steve Hyndman 24 Mar 2007	2
	redirect after post Locked	Genner Cerna 23 Mar 2007	Genner Cerna 23 Mar 2007	0
	Apparent problem with indexes Locked	Kevin Audleman 28 Mar 2007	Henry Johnson 1 Apr 2007	3
	How can I stress test my server? Locked	Kevin Audleman 30 Mar 2007	Michael Spall 20 Aug 2009	9
	Server Recommendations Locked	Ross Oakes 3 Apr 2007	Chris Ainsworth 9 Apr 2007	4
	New for tuning: CFG->apachemaxmem for controlling memory footprint Locked	Martín Langhoff 5 Apr 2007	Simon Story 20 Feb 2012	3
	Moodle Installation Information Locked	Tina Piper 5 Apr 2007	Tony Hursh 6 Apr 2007	1
	very slow on login Locked	Ye Chen 6 Apr 2007	Ye Chen 6 Apr 2007	0
	Backups Delayed / CPU Spiking Locked	Gary Day 12 Apr 2007	Richard Williamson 21 Apr 2007	2
	moodle course loading way 2 slow Locked	Kirsten Ellis 12 Apr 2007	Ken Wilson 14 Apr 2007	5
	Hardware Locked	Bidur Shrestha 13 Apr 2007	Bidur Shrestha 13 Apr 2007	0
	Can I delete unzip folder of eaccelerator? Locked	Mohd Heidzir heidzir 17 Apr 2007	Mohd Heidzir heidzir 24 Apr 2007	2
	Lost, Lost. Lost Locked	Melanie Shepherd 17 Apr 2007	Samuli Karevaara 18 Apr 2007	3
	Performance for quizzes Locked	Julie Voce 18 Apr 2007	Visvanath Ratnaweera 18 Apr 2007	1
	Login Problem with 30 students Locked	Tan Teck Hock 19 Apr 2007	Visvanath Ratnaweera 19 Apr 2007	1
	First Moodle Install, Need Help Locked	Van Howell 20 Apr 2007	Van Howell 20 Apr 2007	3
	How many users can I support with this structure? Locked	Jose Martin 24 Apr 2007	Sylvio Runge 2 July 2007	5
	Remove Apache modules Locked	Mohd Heidzir heidzir 24 Apr 2007	Mohd Heidzir heidzir 20 June 2007	2
	Moodle on Suse Linux Locked	cody ensanian 26 Apr 2007	Visvanath Ratnaweera 2 May 2007	5
	Moodle 1.8 performance issues related to roles Locked	Wen Hao Chuang 28 Apr 2007	Anthony Borrow 26 May 2007	7
	Domain forwarding & how to get my domain in the address bar Locked	Jason Hollowell 28 Apr 2007	Maik Riecken 14 May 2007	25
	PAYING FOR HELP 1.7 and 1.8 SO SLOW! Locked	Will Cunningham 1 May 2007	Mauno Korpelainen 2 May 2007	10
	site loading slowly and sometime I get database connection failed Locked	Mr. Shortcut 5 May 2007	Đặng Quang Hùng 25 June 2008	30
	Setup own webserver, open 2Mb dsl access for 1000 users Locked	Alex Ng 9 May 2007	Visvanath Ratnaweera 14 May 2007	1
	Requerimientos de Hardware Locked	hector molina 10 May 2007	Mauro Ramón 15 May 2007	2
	eAccelerator setting causes blank pages Locked	Sileet A 11 May 2007	Dale Davies 20 Jan 2010	19
	/admin/index.php Locked	Ger Tielemans 13 May 2007	Ger Tielemans 13 May 2007	0
	MySQL table format preference Locked	Paolo Oprandi 14 May 2007	Paolo Oprandi 14 May 2007	2
	Slow loading pages all the time Locked	David Nash 16 May 2007	Neena J.T. 6 June 2007	7
	Quiz module doesn't load Locked	Justin Dunsworth 17 May 2007	Howard Miller 19 May 2007	1
	Upgrade degraded performance...? Locked	David Gill 30 May 2007	Heather P 3 Aug 2007	13
	Upgrade Performance Problems Locked	Paul Brown 31 May 2007	Steve Hyndman 31 May 2007	1
	New Installation/requirements question Locked	Chad Parmentier 31 May 2007	Ken Wilson 5 June 2007	4
	Got db connection error when user connection up to 150 Locked	Wei Tang 31 May 2007	Ken Wilson 15 June 2007	4
	Video Download Speed Locked	Peter Ward 2 June 2007	Peter Ward 2 June 2007	0
	Scaling online tests Locked	Visvanath Ratnaweera 4 June 2007	Visvanath Ratnaweera 6 June 2007	3
	IP based access Locked	Craig Hicks 6 June 2007	Anthony Borrow 24 Aug 2007	11
	System backup for Moodle Locked	A. H. 7 June 2007	Chris Lamb 20 July 2007	7
	A Giant Query of 1.8 + Locked	Jai Gupta 11 June 2007	Dean Thayer 15 Apr 2008	16
	please Help with MySQL optimization Locked	Gautam Saha 12 June 2007	Ken Wilson 15 June 2007	4
	Page load optimisation article - multiple hostnames? Locked	Matt Gibson 14 June 2007	Pieterjan Heyse 14 June 2007	1
	Moodle Host With The Most? Locked	scott waldman 19 June 2007	scott waldman 20 June 2007	5
	How can I config my Mysql Locked	moodle china 24 June 2007	moodle china 24 June 2007	2
	Siteground.com as a Moodle host Locked	Jeff Mehring 28 June 2007	miguel quintero 23 Aug 2015	34
	datamodel.php file using all resources on server Locked	G D 28 June 2007	G D 28 June 2007	2
	New Server Locked	Chris Felinski 29 June 2007	Visvanath Ratnaweera 1 July 2007	2
	How to make a custom php.ini Locked	Gautam Saha 1 July 2007	Just H 24 July 2007	1
	zend optimizer? Locked	Ryan Thomas 6 July 2007	Ryan Thomas 6 July 2007	0
	get_list_of_timezones or how we waste several seconds on most pages Locked	Alexey Veretennikov 10 July 2007	Alexey Veretennikov 11 July 2007	7
	Domain problem Locked	Henryk Szczudlik 10 July 2007	Chris Lamb 11 July 2007	6
	CPU Problems Locked	Tiago Fischer 13 July 2007	Matt Gibson 31 Oct 2007	8
	dream server Locked	n - 18 July 2007	Visvanath Ratnaweera 20 July 2007	2
	Database Load 1.8.1 Locked	Jez H 20 July 2007	Tim Hunt 4 Nov 2007	5
	Disabling HTTPs Security from within Locked	josh squires 22 July 2007	Reinaldo Programmer PhP 15 Apr 2010	2
	Moodle and local PC CBT files for 12,000 users across New Zealand Locked	Tomer Sagi 25 July 2007	Tomer Sagi 25 July 2007	0
	dbperformance interpretation Locked	Mariana vd Walt 29 July 2007	Mariana vd Walt 30 July 2007	2
	Moodle site Hangs Up- "Could not find forum module!!" Locked	Todd Thornton 30 July 2007	Todd Thornton 30 July 2007	1
	500 concurrent Quiz users Locked	n - 30 July 2007	n - 12 Aug 2007	4
	Moodle really slow. Locked	Dr. Moodlearner 1 Aug 2007	Max Garrick 3 Aug 2007	7
	Moving javaScript to bottom of page Locked	Jez H 1 Aug 2007	Jez H 1 Aug 2007	0
	Searching for a Host Locked	Jackie Meyer 2 Aug 2007	Jackie Meyer 6 Aug 2007	9
	apt hardware requirement and server setup required Locked	Visvanath Ratnaweera 7 Aug 2007	Maik Riecken 16 Aug 2007	5
	php accelearator issue with virtual hosts? Locked	Heather P 7 Aug 2007	Maik Riecken 16 Aug 2007	5
	Moodle 1.8.2 (ODBTP) Locked	Ben Steeples 7 Aug 2007	Ben Steeples 7 Aug 2007	0
	Did anyone see problems with a project ... Locked	Andy Tagliani 12 Aug 2007	Andy Tagliani 13 Aug 2007	2
	no use of RAM Locked	Jai Gupta 15 Aug 2007	Jai Gupta 16 Aug 2007	3
	Best performance configuraction for APC Locked	Jai Gupta 15 Aug 2007	Anthony Borrow 17 Aug 2007	3
	Is two better than one? Locked	Oliver James 17 Aug 2007	Jim Peterson 7 Sept 2007	4
	NIC Teaming Locked	Reynard Cobham 17 Aug 2007	Martín Langhoff 18 Aug 2007	3
	Splitting Server Load Locked	Reynard Cobham 17 Aug 2007	Jai Gupta 19 Aug 2007	1
	many queries at login after update to 1.8.2+ Locked	Tobias Marx 17 Aug 2007	Wen Hao Chuang 5 Sept 2007	4
	HTTP Regression Tester Locked	Jordan Zebor 18 Aug 2007	Visvanath Ratnaweera 3 Dec 2007	1
	Parts of Moodle and the home page load very slowly Locked	James Marshall 21 Aug 2007	Daniel Bailey 6 Jan 2010	9