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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
	about the top command Locked	mimi nom 7 June 2018	mimi nom 13 June 2018	8
	Moodle slow for the first visitor then quick thereafter Locked	Walter Buchanan 3 Oct 2017	Nahed Alquwez 6 June 2018	24
	Server specs Locked	Ahmed Nouh 23 May 2018	Visvanath Ratnaweera 2 June 2018	9
	JMeter "Out of Memory” Failure Locked	Jerry Lau 31 May 2018	Jerry Lau 31 May 2018	2
	Moodle installation in intel itanium Windows 2003 system? Locked	Ramesh Nair 23 May 2018	Visvanath Ratnaweera 30 May 2018	9
	Settings for memcache for sessions cache - can't find a moodle doc Locked	John Joubert 30 May 2018	John Joubert 30 May 2018	1
	Moodle clustering on Windows servers Locked	Payman Zafar 21 May 2018	Payman Zafar 29 May 2018	5
	Has Anyone Used mysqlslap for DB Performance Testing? Locked	Ken Task 27 May 2018	Ken Task 27 May 2018	2
	Status indicator light for moodlebox on raspberry pi 3b+ Locked	Cade Dopp 21 May 2018	AL Rachels 23 May 2018	6
	A starndardized quiz to benchmark a Moodle installation? Locked	Visvanath Ratnaweera 21 May 2018	Tim Hunt 23 May 2018	4
	Windows OS : Which version supported (2003/2008/2012) Locked	Ramesh Nair 15 May 2018	Ramesh Nair 21 May 2018	7
	High Load Avarage Locked	Rodrigo Santin 18 May 2018	Howard Miller 20 May 2018	3
	Load many course categories faster Locked	Felipe Dos Santos 16 May 2018	Felipe Dos Santos 18 May 2018	6
	Nginx or Apache with PHP 7.1.8? Locked	Jerry Lau 15 May 2018	Ken Task 15 May 2018	1
	Roadmap for deploying solution for 2000-4000 students Locked	Isaac Marecheau 10 May 2018	Howard Miller 14 May 2018	6
	Getting 405 errors while submitting quiz Locked	geetha prabhu 4 May 2018	geetha prabhu 10 May 2018	18
	Tuning Apache and php-fpm for Moodle Locked	Alain Raap 7 May 2018	Alain Raap 9 May 2018	2
	Moodle on Windows OS for large User base Locked	ramesh nair 3 May 2018	ramesh nair 9 May 2018	3
	It's 2:30 and I have been importing grades since 8:30AM Locked	Diane Soini 19 Apr 2018	Visvanath Ratnaweera 8 May 2018	7
	Problem with Purge Caches Moodle 3.3 Locked	Percy Astocaza 26 Jan 2018	Jeff White 3 May 2018	4
	Site performance Locked	Nikki Macfarlane 28 Apr 2018	Howard Miller 29 Apr 2018	3
	Moodle Quiz with 500 Concurrent User achieved Locked	Moodle Admin 13 Apr 2018	John Frunks 21 Apr 2018	2
	3000 concurrent users in a course Locked	Theocharis Livieratos 20 Apr 2018	Howard Miller 20 Apr 2018	5
	Server Configuration Locked	Derrick Llewellyn 17 Apr 2018	Howard Miller 18 Apr 2018	1
	Is 24GB or RAM for database server enough + moodledata storage design Locked	Jerry Lau 14 Apr 2018	Visvanath Ratnaweera 16 Apr 2018	4
	tcm_grade_items_history table is HUGE! Locked	Scott Bingham 13 Apr 2018	Chris Fryer 15 Apr 2018	4
	quiz conducting 400 users concurrently Locked	sarvesha mv 7 Mar 2018	Moodle Admin 15 Apr 2018	2
	Effect of clearing tcm_grade_items_history table? Locked	Scott Bingham 14 Apr 2018	Tim Hunt 14 Apr 2018	1
	Has anyone successfully run a jmeter test with 1000 users? Locked	Diane Soini 7 Apr 2018	Diane Soini 14 Apr 2018	4
	Session not passing to popup window Locked	Don Schwartz 6 Apr 2018	Howard Miller 10 Apr 2018	2
	https over login page only in "Moodle 3.4" Locked	R K 5 Apr 2018	Emma Richardson 6 Apr 2018	5
	File picker never loading... Locked	Visvanath Ratnaweera 26 Feb 2018	Matteo Scaramuccia 6 Apr 2018	22
	Jmeter output - no slash between host and sitepath Locked	Diane Soini 28 Mar 2018	Diane Soini 4 Apr 2018	4
	A server to install moodle Locked	erdal ayan 16 Mar 2018	erdal ayan 3 Apr 2018	8
	Assignment Submissions is very very slow! Locked	Alireza Akhavan 31 Mar 2018	Alireza Akhavan 1 Apr 2018	2
	Jmeter version used Locked	Jerry Lau 23 Mar 2018	Jerry Lau 30 Mar 2018	5
	Xsendfile - resulting in no Images? Locked	Josh Willcock 16 Mar 2018	Matteo Scaramuccia 30 Mar 2018	4
	Hardware required for up to 30 users in intranet using OWL Oohoo language lab plugin for Moodle Locked	Davida Natolotra 29 Mar 2018	AL Rachels 30 Mar 2018	4
	Wordpress and Moodle Performance Locked	Virtual Tech GT Tutorías . 23 Mar 2018	Usman Asar 27 Mar 2018	3
	Moodle 3.2 - Memcached Session Handling PHP 7.0.9 Locked	Jeff White 6 Dec 2016	TC TC 27 Mar 2018	4
	Seeking Anyone who host Moodles on Rackspace .... Locked	Ken Task 31 Jan 2018	Ken Task 26 Mar 2018	6
	Be Objective: MS SQL Server Enterprise or MySQL enterprise & HA setup recommendations Locked	Jerry Lau 3 Mar 2018	Jerry Lau 23 Mar 2018	6
	Moodle Installation in Rural Area Locked	Dave Jackson 7 June 2017	Marcus Green 17 Mar 2018	17
	Moodle become slow when editing a user profile Locked	mimi nom 20 Feb 2018	mimi nom 10 Mar 2018	20
	5s to load any page, and 30s if admin Locked	Nicolas Kouri 6 Mar 2018	Usman Asar 8 Mar 2018	8
	Moodle site very slow from off premisis Locked	Jack B 2 Mar 2018	Jack B 6 Mar 2018	13
	Finding unlogged in IPs hitting Moodle server Locked	heli g 28 Feb 2018	heli g 1 Mar 2018	18
	Shared host or not to shared host, that is the question Locked	Carol Ann 19 Feb 2018	Usman Asar 27 Feb 2018	10
	Delayed mailings Locked	Sergio Comerón 1 Feb 2018	Sergio Comerón 22 Feb 2018	3
	Dockerized Moodle - Dynamic configuration Locked	Nahum Lipkunsky 16 Feb 2018	Howard Miller 19 Feb 2018	4
	Server Hardware Requisites Locked	Hugo Cardoso 14 Feb 2018	Hugo Cardoso 17 Feb 2018	10
	Running cron from multiple webservers Locked	Christos Savva 9 Feb 2018	Christos Savva 12 Feb 2018	9
	Moodle Storage Management Locked	Dan Stimson 6 Feb 2018	Mathew Gancarz 8 Feb 2018	3
	/usr/local/mysql-5.6.24-osx10.8-x86_64/data/moodle/mdl_logstore_standard_log.ibd Locked	Liz Johnson 19 Jan 2018	Liz Johnson 7 Feb 2018	2
	Understanding which caching method is being used Locked	Eva E 26 Jan 2018	Eva E 26 Jan 2018	4
	Moodle platform setup recommendation for load balancing and failover Locked	Jerry Lau 24 Jan 2018	Jerry Lau 25 Jan 2018	3
	How does using the Mobile App affect server performance? Locked	James Steerpike 13 June 2017	Andrew Normore 25 Jan 2018	2
	MySQL Full Unicode Support - SLOW!! Locked	Howard Miller 25 Apr 2017	Andrew Normore 25 Jan 2018	18
	Moodle very slow... Locked	David GAVEAU 31 Oct 2017	Andrew Normore 25 Jan 2018	9
	How to improve my cache performance? attached a NewRelic screenshot Locked	wz z 21 Nov 2017	Andrew Normore 25 Jan 2018	3
	Non Editing Teacher is SLOW -- Moodle 3.3.2 Locked	Andrew Normore 25 Jan 2018	Andrew Normore 25 Jan 2018	0
	How to maximize memory usage Locked	Kompli Tivi 10 Jan 2018	Ken Task 23 Jan 2018	10
	Changing Moodle Data location = Very slooow site - 5+ minutes per page load Locked	J L 19 Jan 2018	Chris Fryer 20 Jan 2018	1
	Server Configuration for Moodle Locked	Raj Kumar 19 Jan 2018	Raj Kumar 19 Jan 2018	0
	What about tempdir on multi servers / cluster ? Locked	Philippe Siwinski 15 Jan 2018	Philippe Siwinski 16 Jan 2018	2
	Frequent deadlocks on SESSIONS table Locked	Joe Schmoe 16 Nov 2017	Joe Schmoe 12 Jan 2018	12
	php-fpm hangs Locked	Pin Jin 9 Jan 2018	Pin Jin 10 Jan 2018	1
	I want install moodle Locked	Upendra Gawali 24 Nov 2017	Rick Jerz 7 Jan 2018	4
	Unusual constant database load & strange queries Locked	Nick Mika 22 Dec 2017	Nick Mika 4 Jan 2018	4
	Private Server MOODLE Access Fail Locked	Gary Marsh 28 Dec 2017	Ken Task 30 Dec 2017	6
	course completion issue Locked	Leena Nikhare 22 Dec 2017	Ken Task 28 Dec 2017	12
	Backup and restore in Moodle Locked	Alain Raap 18 Dec 2017	Alain Raap 24 Dec 2017	12
	Loading issue in moodle for our site Locked	Leena Nikhare 18 Dec 2017	sulagna behera 20 Dec 2017	14
	New Moodle 3.3 service super slow Locked	Jason Menard 19 June 2017	Alain Raap 14 Dec 2017	13
	Cron takes too long to complete - It stucks on "Running completion_criteria_activity->cron()" Locked	Paula Roque 6 Dec 2017	Paula Roque 13 Dec 2017	1
	Seeking advice on server Locked	Darren Oakley 10 Dec 2017	Ken Task 12 Dec 2017	8
	Where to put moodledata SQL or web server? Locked	J L 5 Dec 2017	Mathew Gancarz 6 Dec 2017	6
	3-tier Architecture Locked	Jonathan Marsh 1 Dec 2017	Jonathan Marsh 5 Dec 2017	13
	performance issue Locked	reza rony 30 Nov 2017	Howard Miller 30 Nov 2017	1
	pgbouncer, transaction pooling and MDL-60174 Locked	Damyon Wiese 28 Nov 2017	Damyon Wiese 28 Nov 2017	0
	moodle architecture esp with multitier installation - Moodle Folder Locked	Tawfik Daim 23 Oct 2017	Michael Penney 24 Nov 2017	7
	dbpersist on Postgres with PGPool? Locked	Richard Heath 24 Nov 2017	Richard Heath 24 Nov 2017	0
	How to set "Stores used when no mapping is present" to memcached or acpu? Locked	wz z 17 Nov 2017	Howard Miller 24 Nov 2017	1
	Site "speed" metrics Locked	Howard Miller 22 Nov 2017	Mathew Gancarz 23 Nov 2017	7
	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
	Resilience, Redundancy, Failover of Moodledata Locked	Deleted user 20 Nov 2017	Jeff White 21 Nov 2017	2
	Moodle 3.1 Windows Cluster slow Locked	callum Wood 16 Nov 2017	Leon Stringer 17 Nov 2017	3
	Windows and a large busy site? Locked	Heather P 15 Nov 2017	Visvanath Ratnaweera 17 Nov 2017	7
	need configuration tips for 1000+ concurrent users Locked	serdar ya 8 Nov 2017	Mathew Gancarz 13 Nov 2017	17
	web hosting plan Locked	Abu Ali 13 Nov 2017	Howard Miller 13 Nov 2017	1
	Do I need Cloudflare Locked	curt bixel 9 Nov 2017	Ken Task 10 Nov 2017	1
	APCu recommend configuration Locked	My Awesome Moodle 6 Nov 2017	My Awesome Moodle 6 Nov 2017	0
	how do you handle long tasks ? Locked	Julien Boulen 9 June 2017	Rick Jerz 1 Nov 2017	12
	Load Testing tool suggestions please Locked	Jerry Lau 20 Sept 2017	kim Rechter 26 Oct 2017	2
	Moodle is very slow and fives an error: kernel:[66680.843979] BUG: soft lockup - CPU#1 stuck for ... Locked	Aretha Etienne 23 Oct 2017	Howard Miller 25 Oct 2017	1
	Moodle on AWS load balancing Architecture Locked	Steve Pollock 19 Apr 2017	Tawfik Daim 21 Oct 2017	14
	Integration through Webservice Locked	Álef Henrique 18 Oct 2017	Howard Miller 20 Oct 2017	1
	Moodle with Shibboleth over SSL Locked	Michael Aherne 16 Oct 2017	Emma Richardson 17 Oct 2017	4
	Hawdare scaleability for moodle on LAMP Locked	Tawfik Daim 6 Oct 2017	Howard Miller 10 Oct 2017	1
	Gourp assignment grading performace issues Locked	Juha Martikainen 10 Oct 2017	Howard Miller 10 Oct 2017	1