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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
	Setup Moodle with DynamoDB Locked	Liam M 21 Oct 2016	Michael Penney 30 July 2017	3
	Cache Settings in config.php - help Locked	Noveck Gowandan 25 Oct 2016	Andrew Lyons 5 Nov 2016	6
	Performance Tuning and Load Testing Locked	Indresh Vishwakarma 26 Oct 2016	Ricardo Caiado 13 Jan 2017	18
	Are Some Moodle installation in a local area network Locked	ari mardian 2 Nov 2016	Muhammad Yani Sidi T 1 Dec 2016	8
	Automated performance tests Locked	Alex Stanec 3 Nov 2016	Mathew Gancarz 4 Nov 2016	2
	$CFG->wwwroot Locked	Mark Rudnicki 9 Nov 2016	Howard Miller 10 Nov 2016	1
	Trim down the log database size Locked	eli chan 16 Nov 2016	Leon Stringer 18 Nov 2016	2
	Using MySQL memcached API for Moodle session storage Locked	Chris Fryer 18 Nov 2016	Chris Fryer 22 Nov 2016	3
	Difficulty using memcached to store moodle session Locked	Daniel Tran 24 Nov 2016	Daniel Tran 26 Nov 2016	6
	How can I speed up backups on a clustered server environment? Locked	Mikhail Janowski 24 Nov 2016	Jeff White 30 Nov 2016	4
	Need help to decide server configuration Locked	Akash Dobaria 25 Nov 2016	Rick Jerz 26 Nov 2016	3
	Need help to decide server configuration Locked	Akash Dobaria 25 Nov 2016	Howard Miller 29 Nov 2016	5
	Problems with architecture Locked	Albert Ramsbottom 29 Nov 2016	Albert Ramsbottom 30 Nov 2016	10
	"Print Book" option not working Locked	Jill Lee 29 Nov 2016	Emma Richardson 30 Nov 2016	1
	Jmeter moodle 2.8 test Locked	Rama Gundabhat 30 Nov 2016	Ken Task 30 Nov 2016	1
	Load testing - quiz Locked	Syed Ali 1 Dec 2016	Howard Miller 1 Dec 2016	1
	Moodle 3.2 - Memcached Session Handling PHP 7.0.9 Locked	Jeff White 6 Dec 2016	TC TC 27 Mar 2018	4
	Problem at my Server Locked	Ali Arekat 6 Dec 2016	Emma Richardson 8 Dec 2016	5
	Long Loading Time After Login (TTFB) Locked	Uchendu Nwachukwu 8 Dec 2016	Uchendu Nwachukwu 12 Dec 2016	5
	how to design moodle server for 40,000 users Locked	com cen 11 Dec 2016	com cen 12 Dec 2016	2
	Moodle slow query Locked	Laboratorio Computacion 13 Dec 2016	Laboratorio Computacion 13 Dec 2016	0
	Moodle on AWS - SSL Locked	Stefan Van De Velde 15 Dec 2016	Jeff White 16 Dec 2016	1
	Problem with course restore Locked	Marian Kočenda 15 Dec 2016	Jeff White 16 Dec 2016	2
	MySQL CPU - Moodle Locked	A J 21 Dec 2016	Howard Miller 4 Jan 2017	14
	Web Server + Database selection/preferences (Apache, MySQL?MariaDB, Nginx, PostgreSQL) Locked	Jerry Lau 22 Dec 2016	Ricardo Caiado 13 Jan 2017	6
	General Question about Moodle Implementation Locked	Alexander Canaan 23 Dec 2016	Howard Miller 23 Dec 2016	3
	Table partion in moodle Locked	vysakh b 23 Dec 2016	vysakh b 28 Dec 2016	5
	Sometimes, Moodle does not response (Internal Server Error) Locked	Hu La 24 Dec 2016	Howard Miller 24 Dec 2016	1
	memcached usage in clustered environment - replication questions Locked	Niels Hendriks 27 Dec 2016	Niels Hendriks 1 Jan 2017	2
	How to increse apache 2 and mysql performance and howmany users can give exam at a time in my ... Locked	lalit thakur 5 Jan 2017	Ricardo Caiado 13 Jan 2017	5
	Question about Redis Cluster Failover Locked	Jeff White 6 Jan 2017	Jeff White 6 Jan 2017	0
	Software Version Vs. performance Question Locked	Mr. Marc 6 Jan 2017	Mr. Marc 6 Jan 2017	2
	HTTPS redirect loop through CloudFlare services Locked	Omer Magill 10 Jan 2017	Omer Magill 10 Jan 2017	1
	mdl_cache_flags slow in LnP Locked	Charu Khamitkar 13 Jan 2017	Tomasz Muras 18 Jan 2017	2
	quiz for 150 students Locked	ziv izackov 16 Jan 2017	ziv izackov 16 Jan 2017	9
	Can moodle serve huge numbers of users? Locked	Ahmed Ibrahim 17 Jan 2017	Dan Marsden 15 Feb 2017	9
	moodle 3.x and bluehost shared hosting incompatibility? Locked	spyros zoup 17 Jan 2017	Dan Rosenthal 30 Jan 2017	16
	How to sync local installation of Moodle and installation on a server onine Locked	Paa Kwesi 17 Jan 2017	Paa Kwesi 17 Jan 2017	4
	Moodle 2.8.6 site running extremely slow Locked	Mark Baldwin 20 Jan 2017	Dan Marsden 23 Jan 2017	5
	MySQL Performance for Moodle Locked	Jonathan V 21 Jan 2017	Tavi Al 4 July 2017	10
	Advice on moodle installation Locked	Mark Hamptom 25 Jan 2017	Mathew Gancarz 26 Jan 2017	2
	Central Moodle instance sync to local instance - updated Locked	Paa Kwesi 25 Jan 2017	Paa Kwesi 13 Mar 2017	14
	JSON error when uploading a file Locked	David Bates 1 Feb 2017	James McLean 2 Feb 2017	5
	Network Latency and AWS Locked	Clarissa S 8 Feb 2017	Santhosh Kumar T 7 Oct 2017	4
	MongoDB: Invalid Plugin Locked	Douglas Rosa 9 Feb 2017	Douglas Rosa 9 Feb 2017	2
	Moodle grader report editing extremely slow Locked	Debbie Unterseher 11 Feb 2017	Debbie Unterseher 14 Mar 2017	18
	Student Profile Data (Default) Not Updating Locked	Troy May 15 Feb 2017	Troy May 19 Feb 2017	6
	Moodle Performance Issues (Load Balancer / Cluster) (Willing to Pay for Help) Locked	Amber Lynn 15 Feb 2017	Christos Savva 29 July 2017	15
	pluginfile.php performance and session locking Locked	Dominique LALOT 16 Feb 2017	Dominique LALOT 24 Feb 2017	2
	Problem of performance Locked	mimi nom 20 Feb 2017	mimi nom 21 Feb 2017	4
	Proposal: Reduce session lock contention with opt-in READ_ONLY_SESSION Locked	Adam Eijdenberg 21 Feb 2017	Tim Hunt 22 Feb 2017	3
	Extreamly slow self-enrollment Locked	Marjan Milošević 23 Feb 2017	Marjan Milošević 24 Feb 2017	1
	Cron task making httpd irresponsive? Locked	Luca Bösch 27 Feb 2017	Paul Verrall 20 Mar 2017	5
	Slow writing speed to Postgres Database Locked	Acs Gabor 27 Feb 2017	Acs Gabor 1 Mar 2017	2
	Moodle For 10000 concurrency especially for Quiz Locked	Shyam Jadala 6 Mar 2017	Shyam Jadala 7 Mar 2017	12
	Hardware issues with Moodle Locked	Nduka S Okoye 10 Mar 2017	Usman Asar 11 Mar 2017	2
	System Hangs a lot after installing Moodle Locked	Grzegorz Szorc 15 Mar 2017	Stefan Adam 18 July 2017	4
	handling static contents with apache mod_cache_disk Locked	Julien Boulen 20 Mar 2017	Julien Boulen 20 Mar 2017	0
	"what hardware do I need for 500 user?" Locked	Davis Parni 22 Mar 2017	Howard Miller 23 Mar 2017	5
	Assignment Submission Taking over 5 minutes Locked	Brandon Stocks 27 Mar 2017	Brandon Stocks 29 Mar 2017	2
	500 Internal Server Errors on saving pages Locked	Conrad Murray 30 Mar 2017	Howard Miller 30 Mar 2017	1
	Moodle file picker not working Locked	Taj Des 30 Mar 2017	Landy DeField 16 Dec 2021	45
	A moodle setup for 2K simultaneous users taking quiz Locked	Mahir M Hameed 30 Mar 2017	John Papworth 26 Apr 2017	13
	basic performance tuning Locked	Fabienne Neveu 4 Apr 2017	Fabienne Neveu 20 Apr 2017	7
	Configuring Server for 9000 users Locked	Luca Viggiani 6 Apr 2017	Howard Miller 7 Apr 2017	3
	Moodle not detecting the hardware devices? Locked	Simon Casey 8 Apr 2017	Howard Miller 8 Apr 2017	1
	"Slow" render Times not under 1.2 sek Locked	Marcel Matschke 11 Apr 2017	Marcel Matschke 22 Apr 2017	13
	Moodle not accessible after purging cache! Locked	Anirudh Phadke 11 Apr 2017	Anirudh Phadke 11 Apr 2017	2
	Courses for 6000 students Locked	Lorenzzo Mollinar 11 Apr 2017	Usman Asar 11 Apr 2017	1
	Failover moodle server Locked	dwi sudibyo 13 Apr 2017	dwi sudibyo 14 Apr 2017	4
	Moodle on AWS load balancing Architecture Locked	Steve Pollock 19 Apr 2017	Tawfik Daim 21 Oct 2017	14
	Server Hardware Requirement for 300 User Locked	Aditya Gautam 24 Apr 2017	James Steerpike 10 June 2017	14
	MySQL Full Unicode Support - SLOW!! Locked	Howard Miller 25 Apr 2017	Andrew Normore 25 Jan 2018	18
	Moodle 3.2.2 on Shared Hosting Locked	Fred Cole 26 Apr 2017	Rick Jerz 28 Apr 2017	8
	Moodle session driver always write to mdl_sessions despite your setting (Memcached, File) Locked	Alfie Punnoose 5 May 2017	Joe Schmoe 22 Nov 2017	2
	Dev server performance tips (Windows) Locked	Ole Frank Jensen 8 May 2017	Ole Frank Jensen 10 May 2017	7
	All admin features causing 504 timeouts Locked	r j 10 May 2017	r j 10 May 2017	1
	bar code login Locked	Mahir M Hameed 15 May 2017	AL Rachels 17 May 2017	2
	Configuring PHP-FPM for performance Locked	Heiko Schach 15 May 2017	Corey Brett 26 June 2017	5
	Caching the moodledata directory Locked	Roland Chapin 23 May 2017	Jeff White 16 June 2017	3
	Errors in apache2 log - is this normal? Locked	Conor Bradley 25 May 2017	Conor Bradley 25 May 2017	2
	Performance stuck in 250 Concurrent request / second Locked	Pupil Senpro 26 May 2017	Abbie Abbey 30 May 2017	7
	Moodle Installation in Rural Area Locked	Dave Jackson 7 June 2017	Marcus Green 17 Mar 2018	17
	how do you handle long tasks ? Locked	Julien Boulen 9 June 2017	Rick Jerz 1 Nov 2017	12
	Postgresql performance slow Locked	David Vishloff 10 June 2017	David Vishloff 10 June 2017	0
	Could not handle 60 requests at a time for online quiz Locked	Santhosh Chandra 10 June 2017	Usman Asar 11 June 2017	2
	quiz - advise needed Locked	jhon grenn 11 June 2017	jhon grenn 28 June 2017	6
	How does using the Mobile App affect server performance? Locked	James Steerpike 13 June 2017	Andrew Normore 25 Jan 2018	2
	Email problem? System slow to create users or complete tests Locked	Stuart Ridout 19 June 2017	Jamie Kramer 21 June 2017	1
	New Moodle 3.3 service super slow Locked	Jason Menard 19 June 2017	Alain Raap 14 Dec 2017	13
	Clustered file system for Moodledata Locked	Jeff White 21 June 2017	Jeff White 21 June 2017	0
	Is 371ms within an acceptable range for time to download the dashboard on a new installation? Locked	Corey Brett 24 June 2017	Mathew Gancarz 27 June 2017	2
	Quiz timer starts before first page loads (Moodle 2.7.19) Locked	Simon Cheng 24 June 2017	Mary Cooch 24 June 2017	2
	Jmeter Regular Expression Extractor for "sesskey" Locked	Arabinda P 27 June 2017	Tim Hunt 28 June 2017	3
	CPU overloaded Locked	Bernat Martinez 3 July 2017	Bernat Martinez 6 July 2017	6
	Moodle Running So Slow Locked	christian orvin 3 July 2017	Howard Miller 4 July 2017	3
	JMeter trouble Locked	Bernat Martinez 7 July 2017	Bernat Martinez 21 July 2017	2
	Hardware in large scal Locked	wahid Anwar 10 July 2017	Tawfik Daim 2 Oct 2017	7
	Scorm Packages Upload and Duplicate Issue Locked	Muhammad Ammar` Ijaz 11 July 2017	Muhammad Ammar` Ijaz 11 July 2017	2
	MySQL server has gone away when trying to delete course Locked	Mateusz Szuter 14 July 2017	Mateusz Szuter 18 July 2017	7