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 2967 discussions
Discussion	Started by	Last post	Replies
Anyone running HTTP/2? Locked	Rex Lorenzo 14 Nov 2018	Rex Lorenzo 17 Nov 2018	7
PHP-cgi.exe 100% load CPU one core Locked	István Farkas 9 Nov 2018	István Farkas 11 Nov 2018	6
Big jumps in mysql memory usage Locked	David Garden 7 Nov 2018	Howard Miller 8 Nov 2018	7
SCORM Package breaks from 500 errors on image files? Locked	David Garden 5 Nov 2018	Matteo Scaramuccia 6 Nov 2018	1
Questions about load balancing methods and the session cache Locked	Andrew Howe 31 Oct 2018	Marcus Green 4 Nov 2018	6
Uploaded files have long post-processing time Locked	Rex Lorenzo 3 Nov 2018	Rex Lorenzo 3 Nov 2018	1
Course-level backup on large-ish instance Locked	Mark van Hoek 30 Oct 2018	Susan Mangan 1 Nov 2018	2
moodle for digital exam for about 70 students Locked	sanaz karimkhani 25 Oct 2018	sanaz karimkhani 31 Oct 2018	8
Moodle a mount drive on amazon s3 or any other storage solution Locked	Daniel Garcia 25 Oct 2018	Daniel Garcia 31 Oct 2018	5
How to test performance, with and without Wincache Locked	Paul L 31 Oct 2018	Paul L 31 Oct 2018	0
Hardware for 100 concurrent users Locked	Mohammad Hallak 27 Oct 2018	Howard Miller 29 Oct 2018	10
What does "automated backup are already running. Execution delayed"? Locked	Jerry Lau 15 Oct 2018	Visvanath Ratnaweera 21 Oct 2018	2
What do these stats mean in footer Locked	Jerry Lau 28 Sep 2018	AL Rachels 21 Oct 2018	7
Help with Windows Moodle Performance Locked	J P 14 Dec 2017	Paul L 13 Oct 2018	3
opcache issue on Moodle 3.4 and PHP 7.0.x Locked	William Chan 6 Sep 2018	William Chan 12 Oct 2018	7
File vs Database for Sessions, moodle 3.3 Locked	Paul L 22 Jun 2018	Paul L 11 Oct 2018	6
Might have found the cause of slowness in DB Locked	Jerry Lau 3 Oct 2018	Visvanath Ratnaweera 11 Oct 2018	7
Can I modify the .cnf files, delete the innodb files and restart? Locked	Jerry Lau 1 Oct 2018	Howard Miller 1 Oct 2018	1
Moodle Webservices and AWS ElasticCache(memcached) problem Locked	Christos Savva 27 Sep 2018	Christos Savva 27 Sep 2018	0
Speeding up Moodle - reindexing entire database would help? Locked	Jerry Lau 26 Sep 2018	Howard Miller 27 Sep 2018	6
Moodle increase size Locked	Yoel Gutierrez 31 Aug 2018	Yoel Gutierrez 26 Sep 2018	3
from M3.1 to M3.5 : database issue ? Locked	Michel DENIS 20 Sep 2018	Michel DENIS 25 Sep 2018	18
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
Using AWS for Moodle Locked	Edilberto Solis, Jr. 3 Aug 2017	Greg Rudl 13 Sep 2018	10
CDN for beginners Locked	H TNG 28 Aug 2018	Mathew Gancarz 30 Aug 2018	2
Slow Load Time When Saving a new Activity or Editing an Existing one Locked	Ahmed Aly 19 Aug 2018	Ahmed Aly 27 Aug 2018	6
Major problems with Moodledata on NFS Locked	Albert Ramsbottom 23 Aug 2018	Visvanath Ratnaweera 25 Aug 2018	4
Moodle 3.4 -> 3.5 upgrade time Locked	sam marshall 23 Aug 2018	sam marshall 24 Aug 2018	1
Can't setup memcached for sessions Locked	Regina B 23 Aug 2018	Regina B 23 Aug 2018	0
Dockerized Moodle - Performance Locked	Nahum Lipkunsky 16 Feb 2018	Andrew Nicols 14 Aug 2018	47
Timing Out Locked	Steve Hyland 11 Aug 2018	Rick Jerz 13 Aug 2018	12
Hardware requirements for a minimum traffic of concurrent users Locked	Javier Quinto 7 Aug 2018	Ken Task 11 Aug 2018	7
Need a script that would display a node number of a load balanced system - 5 nodes Locked	Ken Task 27 Jul 2018	Andreas Panagiotopoulos 9 Aug 2018	15
Is there a way to estimate actual number of concurrent Moodle users? Locked	Joe Schmoe 22 Nov 2017	A. S. 5 Aug 2018	3
moodle memcached being used for sessions - confused by what I see Locked	John Joubert 20 Jul 2018	John Joubert 3 Aug 2018	5
Refresh Mod Calendar Events Task - Slow Locked	Grady Miller 2 Mar 2018	Russell Morriss 1 Aug 2018	6
How to replicate in moodle? Locked	Danishka Navin 15 Jul 2018	Tim Hunt 1 Aug 2018	10
grunt css Locked	Дмитрий Пименов 31 Jul 2018	Дмитрий Пименов 31 Jul 2018	3
Server hardware for 1000 concurrent users Locked	Jkail MOENE 31 Jul 2018	Albert Ramsbottom 31 Jul 2018	1
Groups and performance Locked	Maribel Rosich 27 Jul 2018	Howard Miller 27 Jul 2018	1
Micro Focus for load testing Locked	Howard Miller 25 Jul 2018	Howard Miller 25 Jul 2018	0
Site home very slow, 39 seconds Locked	Albert Ramsbottom 18 Jul 2018	Howard Miller 25 Jul 2018	12
Advice on server to run multiple Moodle sites Locked	Jason Lane 11 Jul 2018	Paul Raper 16 Jul 2018	9
This is exciting as I am back, NFS question Locked	Albert Ramsbottom 9 Jul 2018	Matteo Scaramuccia 10 Jul 2018	8
Big Blue Button and number of users Locked	Javier Tejera 29 Jun 2018	Albert Ramsbottom 9 Jul 2018	3
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
Problems crashing on the server Locked	Franky Vallori 29 Jun 2018	Albert Ramsbottom 9 Jul 2018	7
Event monitoring Locked	Helen Brennagh 4 Jul 2018	Helen Brennagh 9 Jul 2018	2
Moodle 3.2 server unable to load 500 users Locked	Vishwa H 16 Jun 2018	Usman Asar 23 Jun 2018	11
Moodle SqlDump is 2GB, but MySQL database is only a few Mb... ?? Locked	Tom Smith 15 Jun 2018	Ken Task 20 Jun 2018	10
VPS, too high CPU usage with just one request Locked	Oscar Martin Martinez 11 May 2018	Rick Jerz 15 Jun 2018	21
about the top command Locked	mimi nom 7 Jun 2018	mimi nom 13 Jun 2018	8
Moodle slow for the first visitor then quick thereafter Locked	Walter Buchanan 3 Oct 2017	Nahed Alquwez 6 Jun 2018	24
Server specs Locked	Ahmed Nouh 23 May 2018	Visvanath Ratnaweera 2 Jun 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 Jun 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

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