Hardware and performance

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.

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List of discussions. Showing 100 of 2980 discussions
Discussion	Started by	Last post	Replies
תשובה ל: Update on PHP-accelerators, WinCache problems Locked	עומר המאירי 24 Sep 2012	J D 16 Feb 2013	10
zoov.co (they're based in the UK from what I can tell) Locked	Rick Henry 28 Jan 2012	Ralf Hilgenstock 30 Jan 2012	2
Zip Performance in Moodle Locked	Dale Davies 16 Mar 2015	Howard Miller 17 Mar 2015	1
Zend? Locked	Ian Ellis 25 Jun 2004	Howard Miller 26 Jun 2004	3
zend optimizer? Locked	Ryan Thomas 6 Jul 2007	Ryan Thomas 6 Jul 2007	0
Your opinion about this server configuration / 200 or 300 users Locked	Susana Willemoës 10 May 2006	Visvanath Ratnaweera 14 May 2006	2
Your Moodle peaking bandwidth use/hour? Locked	Jens Gammelgaard 7 May 2005	Martín Langhoff 21 May 2005	9
You opinion on server specs? Locked	Richie Foreman 16 Feb 2006	Visvanath Ratnaweera 20 Mar 2006	9
Yea.. More sessions questions. Locked	sakai user 23 Dec 2010	sakai user 23 Dec 2010	0
Yahoo Yslow - can we cache the .php stylesheets Locked	Matt Gibson 9 Oct 2007	Martin Dougiamas 9 Oct 2007	2
Xsendfile - resulting in no Images? Locked	Josh Willcock 16 Mar 2018	Matteo Scaramuccia 30 Mar 2018	4
XML page can not be displayed. Locked	Tawfiqul Bari 11 Feb 2009	Tim Hunt 12 Feb 2009	7
XML Error when logging to our development environment Locked	smrithi puli 29 Jan 2009	Tim Hunt 29 Jan 2009	1
XHProf (hierarchial profiler for PHP) on Moodle Locked	Visvanath Ratnaweera 28 Feb 2013	Dan Poltawski 5 Mar 2013	1
XCache with Moodle Locked	Ângelo Rigo 18 Jun 2008	Zvonko Martinović 10 Jun 2010	8
Xcache for windows server 2003 Locked	Mohan V 27 Apr 2009	Visvanath Ratnaweera 28 Apr 2009	1
xampp windows installation package issues Locked	Michael Rodgers 12 Mar 2007	Michael Rodgers 12 Mar 2007	0
XAMPP on Windows Server 2012 running in production Locked	Michael Hankins 9 Mar 2019	Ken Task 16 Mar 2019	19
X-Sendfile - Slow Large File Downloads	Mihai Bojonca 20 Nov 2020	Mihai Bojonca 21 Nov 2020	1
WYSIWYG gone in forum using Safari 4 Locked	Julian ter Huurne 20 Apr 2009	Jonathan Moore 23 Apr 2009	5
Would this server be powerful enough? Locked	Nathan Bellato 13 Jan 2014	Howard Miller 14 Jan 2014	8
Would moodledata on separate server work/help? Locked	Adam Johnston 22 Jul 2005	Ralph Patterson 15 Jan 2008	5
Would EasyPHP cut the mustard for a trial Locked	Neil Aubrey 13 Dec 2004	Bob Boufford 14 Dec 2004	4
Worried about the performance of our moodle server ! Continued... Locked	Steve Audus 18 Jun 2008	Myles Carrick 21 Jul 2008	2
Worried about the performance of our moodle server ! Locked	Steve Audus 7 Jun 2008	Steve Audus 9 Jun 2008	3
Worldwide moodle Locked	Geoff Tothill 1 Aug 2009	Geoff Tothill 18 Sep 2009	3
Working and load very slow my site Locked	gourav gourav 14 Jan 2015	Howard Miller 14 Jan 2015	1
Workaround to load files without file.php Locked	Biel Frontera 14 Jan 2013	Simon Story 15 Jan 2013	2
Wordpress and Moodle Performance Locked	Virtual Tech GT Tutorías . 23 Mar 2018	Usman Asar 27 Mar 2018	3
winnt_accept: Asynchronous AcceptEx failed. Locked	Dicky Sugita 27 Jul 2005	Dicky Sugita 27 Jul 2005	0
Windows XAMPP vs LAMP Locked	M Ghazaly Abdul Rahman 31 May 2005	HJWUCGA INC. 6 Feb 2009	7
Windows Vista --Vs-- Windows XP Locked	Thomas Saccardi 28 Jan 2009	Thomas Saccardi 28 Jan 2009	0
Windows server: I have tried everything to increase its performance Locked	Mari Cruz García 7 Mar 2013	Mari Cruz García 15 Mar 2013	4
Windows server problems Locked	Mark Smith 21 Sep 2011	Visvanath Ratnaweera 23 Sep 2011	6
Windows server for school Locked	Edward Gash 18 Nov 2006	Visvanath Ratnaweera 7 Dec 2006	5
Windows Server 2016, IIS10, MSSQL 2016, PHP7.0 with Moodle 3.6.2+ Locked	Craig Gardner 24 Sep 2019	Usman Asar 7 Nov 2019	10
Windows Server 2008 and Moodle cluster Locked	Lee Procter 17 Nov 2009	Keshwar White 10 Jul 2010	3
Windows OS : Which version supported (2003/2008/2012) Locked	Ramesh Nair 15 May 2018	Ramesh Nair 21 May 2018	7
Windows Install: XAMP or Regular Install Locked	Jasen Walker 25 Feb 2009	Jon Witts 26 Feb 2009	2
Windows and a large busy site? Locked	Heather P 15 Nov 2017	Visvanath Ratnaweera 17 Nov 2017	7
Windows 2008 R2 FASTCGI_RAPID_FAILURE_PROTECTION Locked	David H 2 Nov 2019	David H 5 Nov 2019	4
Windows 2003 vs. Linux Locked	Erica Grong 7 Feb 2006	Gert Jan Bouman 10 Feb 2006	2
windows 2003 server/iis or apache Locked	Doris Johnson 1 Apr 2005	koen roggemans 16 Jun 2005	2
Windows 2003 or linux Locked	mick marshall 2 Feb 2006	Visvanath Ratnaweera 10 May 2006	16
Windows 2000 Server migration to Linux Locked	Darin Bawden 12 May 2005	Martin Griffiths 18 Mar 2009	11
Win2003, Linux and LDAP Authentication Locked	David Carter 18 Dec 2003	Janne Mikkonen 4 May 2004	4
Win 2k3/IIS6 - CPU Spike Locked	Todd Bryant 5 Dec 2007	Visvanath Ratnaweera 5 Dec 2007	2
Win 2003 problem Locked	Mark Hope 20 Aug 2004	Peak Becker 27 Sep 2004	7
WIMP Server Hangs Locked	Anthony Borrow 20 Nov 2005	Thomas Haynes 24 Nov 2005	1
Will upgrading php and mysql Damage Moodle 2.5? Locked	Miki Alliel 18 Nov 2014	Miki Alliel 18 Nov 2014	2
Will this configuration handle 20K users? Locked	German Acevedo 17 Apr 2014	German Acevedo 22 Apr 2014	9
Will Moodle run well on a Zeus server? Locked	John Bonner 26 Aug 2009	John Bonner 5 Dec 2010	9
Will I get better speed from linux? Locked	Graeme Forrester 9 Jan 2007	Mikel Stous 9 Feb 2007	13
wicked problem when loading MOODLE Locked	Sebastian Ornazeder 5 Mar 2006	Sebastian Ornazeder 6 Mar 2006	5
Wich PHP accelerator with WIndows 2003 and PHP 5.1.6 ? Locked	Duarte Silvestre 23 Oct 2006	Gary Anderson 1 Nov 2006	4
Why is my small Moodle setup maxing out my server's 1 GB memory limit? Locked	Ellen Spertus 3 Apr 2018	Francisco Lemus 22 Sep 2018	23
Why is 3.0 running so slow Locked	Clinton Randolph 11 Feb 2016	Ken Task 12 Feb 2016	6
Why I am so HAPPY today..make me happier? Locked	Frankie Kam 15 Jan 2011	Frankie Kam 26 Jan 2011	9
Why are we running so slowly? Locked	d morte 6 Oct 2010	Bartosz Cisek 14 Jan 2011	20
Why a many page aren't loaded in adminpanel Locked	Дмитрий Корольчук 6 Oct 2008	Дмитрий Корольчук 6 Oct 2008	0
Why "role_assign()" && "role_unassign()" takes so much time to execute...? Locked	Simon MELIX 3 Jun 2008	Visvanath Ratnaweera 24 Oct 2008	6
WHM & server transfer of Moodle sites Locked	jobe jobe 22 Apr 2008	jobe jobe 22 Apr 2008	0
Which PHP?? Locked	Bill Click 9 Jun 2005	ryan wise 13 Jun 2005	3
Which organization for keeping a good response time ? Locked	vouty - 4 Apr 2013	vouty - 4 Apr 2013	0
Which one best moodle hosting server in the world ? Locked	Kathir Rajaraman 27 Apr 2015	Fahad Rafiq 6 May 2015	9
Which modules does apache need Locked	Heather P 4 Feb 2009	Heather P 4 Feb 2009	0
Which Linux? Locked	Steve Squires 13 May 2010	Mary Evans 7 Jun 2010	22
Which has better performance: PostgreSQL?, MySQL? Locked	Miquel Escarrà 2 May 2004	Janne Mikkonen 2 May 2004	1
Which distribution of Linux should we use? Locked	n - 8 Oct 2005	Michael Hall 18 Nov 2005	24
Where to throw the new/extra memory (usefully)? Locked	greg mushial 23 Mar 2010	Henning Bostelmann 24 Mar 2010	7
Where to start choosing a server spec for moodle 2.# Locked	Tom Moseley 5 Jun 2013	Tom Moseley 5 Jun 2013	0
Where to put moodledata SQL or web server? Locked	J L 5 Dec 2017	Mathew Gancarz 6 Dec 2017	6
Where is the keep log files for... Locked	Heather P 30 Oct 2015	Heather P 30 Oct 2015	2
Where are the cycles going in 2.2 Locked	greg mushial 29 Jan 2012	sam marshall 1 Feb 2012	14
When to build a server cluster for Moodle (with examples)? Locked	Visvanath Ratnaweera 7 Mar 2016	Luis de Vasconcelos 25 Apr 2016	12
What's the requirement specifications of a host needed to uplood moodle 3.1 with 3000 users Locked	Ahmed Samy 28 Aug 2016	Ahmed Samy 28 Aug 2016	0
What would you buy? Locked	Eric Hagley 11 Sep 2013	jason everling 27 Mar 2014	21
What would it take? Locked	Alex Walker 20 Nov 2004	Michael Penney 23 Nov 2004	8
What would be optimal requirements for conducting quiz of 1000 users simultaneously?	Advait Nandeshwar 23 Jun 2020	Visvanath Ratnaweera 26 Jun 2020	11
What Virtual Host Server Do You Use? Locked	Richard B 28 Apr 2013	Visvanath Ratnaweera 30 Apr 2013	7
What to do about memcached cache reset Locked	Dan Poltawski 12 Nov 2014	Matt Spurrier 14 Nov 2014	3
What to cache with MemCached Locked	curt bixel 3 Oct 2015	Visvanath Ratnaweera 27 Oct 2015	19
What spec server Locked	Ian Thomas 7 Jan 2007	Ian Thomas 9 Jan 2007	2
What skills does a server admin need? Locked	Bob Majors 11 Mar 2005	iudicium ferat 7 Apr 2005	3
What Size Should ramdisk/tmpfs Be for 'temp' and 'cache' ? Locked	Paul L 5 Mar 2019	Howard Miller 20 Mar 2019	11
What size server Locked	Brendan Leahy 9 Oct 2006	Ralph Patterson 17 Oct 2006	13
What server? Locked	Toni Mas 3 May 2006	Visvanath Ratnaweera 3 May 2006	2
What server to use Locked	Tom Wootton 15 Apr 2011	Renaat Debleu 3 May 2011	6
What server do I need with what?? Locked	W Page 17 Jun 2005	W Page 17 Jun 2005	4
what response time should I expect from a host? Locked	Jocelyn Graf 14 Aug 2006	Samuli Karevaara 15 Aug 2006	2
What may cause a coding error - failed to unserialise data from file. Either failed to read, or ... Locked	Sandy Stockholm 14 Jun 2018	Albert Ramsbottom 9 Jul 2018	2
What makes the "Teaching with Moodle" MOOC course work so well? Locked	Rick Jerz 2 Sep 2013	Anna Jonna Ármannsdóttir 28 Nov 2013	14
What is wisdom Locked	Ger Tielemans 11 Feb 2006	Iñaki Arenaza 12 Feb 2006	2
What is the minimum MySQL version for 1.5? Locked	Michael Penney 14 Aug 2005	Jeff Graham 17 Aug 2005	7
What is the meaning of these findinds on "dbperformance.php " page?? Locked	W Page 1 Jun 2004	W Page 1 Jun 2004	0
What is the impact of not keeping Moodle log files for more than 3 months? Locked	Heather P 11 Sep 2015	Heather P 11 Sep 2015	0
What is the correct MUC setting for running Moodle 2.4.4+ in a clustering environment? Locked	CP Lau 2 Jul 2013	CP Lau 15 Jul 2013	2
What is the best platform for moodle instalation and stability. Locked	Henry Herrick 11 Mar 2005	David Cockayne 20 Apr 2005	6
What is the best isolation level for MySql using InnoDB Locked	Piotr Kochanski 16 Mar 2010	Tim Hunt 16 Mar 2010	1
What is mysql abuse? My account was just suspended. Locked	Steven Day 10 Nov 2004	Steven Day 10 Nov 2004	6

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