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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DiscussionStarted byRepliesLast post
Munin plugin for Moodle Picture of Ruslan Kabalin Ruslan Kabalin 16 Arnaud TROUVE
Fri, Feb 5, 2016, 5:52 PM
Any easy way to get notified if the cron is not running? Picture of Rachel Martin Rachel Martin 3 Visvanath Ratnaweera
Thu, Feb 4, 2016, 5:22 AM
25000 users cohort sync Picture of Susana L. Susana L. 1 Mark Sharp
Wed, Feb 3, 2016, 6:11 PM
Moodle database Mysql connection/stability problem Picture of Proyectos Moodle Proyectos Moodle 1 Visvanath Ratnaweera
Wed, Feb 3, 2016, 6:32 AM
Moodle on Windows/IIS/MS SQL - known issues ? Picture of Angelin Lalev Angelin Lalev 22 Visvanath Ratnaweera
Sat, Jan 30, 2016, 6:10 PM
Rebuilding The Moodle Database Question Picture of Steven P. Steven P. 2 Howard Miller
Wed, Jan 27, 2016, 6:21 PM
Moodle freeze Picture of Susana L. Susana L. 5 Susana L.
Mon, Jan 25, 2016, 8:22 PM
Current Picture of Cesar Almanza Cesar Almanza 4 Cesar Almanza
Fri, Jan 22, 2016, 12:13 AM
Redundant Moodle Application Picture of Matt Polaniecki Matt Polaniecki 3 Marcus Green
Thu, Jan 21, 2016, 9:58 PM
Copying Production Moodledata to Dev Brought Down Production. Picture of Jeff White Jeff White 5 Jeff White
Thu, Jan 21, 2016, 3:37 AM
Sessions in Database and memcached Picture of Colin Misbach Colin Misbach 2 Colin Misbach
Thu, Jan 21, 2016, 12:51 AM
New Moodle Slow saving grade changes Picture of Jason Touw Jason Touw 23 Jason Touw
Wed, Jan 20, 2016, 11:03 PM
Concurrent user policy Picture of rahul borate rahul borate 5 Usman Asar
Wed, Jan 20, 2016, 6:52 PM
Your advice and experience is highly appreciated related to moodle speed Picture of zizo zizo zizo zizo 8 Usman Asar
Wed, Jan 20, 2016, 4:29 AM
Another "portable Moodle"? (Ocean: The Linux Web Server That Fits in Your Pocket) Picture of Visvanath Ratnaweera Visvanath Ratnaweera 0 Visvanath Ratnaweera
Tue, Jan 19, 2016, 10:13 PM
Bulk User Action - Problem Download Users Picture of Proyectos Moodle Proyectos Moodle 0 Proyectos Moodle
Tue, Jan 19, 2016, 9:14 PM
Moodle Connection Time Out Issue Picture of N B N B 5 Howard Miller
Tue, Jan 19, 2016, 6:14 PM
Has Moodle become thrifty? Picture of Visvanath Ratnaweera Visvanath Ratnaweera 22 Visvanath Ratnaweera
Sun, Jan 10, 2016, 4:16 AM
Server Configuration Picture of Tarek Raslan Tarek Raslan 2 Usman Asar
Fri, Jan 8, 2016, 2:15 AM
Moodledata S3 project Picture of Eduardo Kraus Eduardo Kraus 1 Howard Miller
Sat, Jan 2, 2016, 9:40 PM
How to simulate user do quiz multi choice use Jmeter ! Picture of Tran The A n Tran The A n 19 Jan Derriks
Sun, Dec 27, 2015, 10:32 PM
jMeter and Quizzes Picture of Jason Cameron Jason Cameron 6 Jan Derriks
Sun, Dec 27, 2015, 10:28 PM
Basic starting help ... Picture of Pekka Harmoinen Pekka Harmoinen 3 Visvanath Ratnaweera
Mon, Dec 21, 2015, 11:06 PM
dcachesize on server going high on my server and causing server problems me Billy Zwiener 2 Billy Zwiener
Mon, Dec 21, 2015, 10:17 PM
PHP memory Picture of Rama Gundabhat Rama Gundabhat 18 Rama Gundabhat
Wed, Dec 16, 2015, 11:22 PM
The coming of HTTP/2 Picture of Ken Task Ken Task 5 Nadav Kavalerchik
Wed, Dec 16, 2015, 4:12 AM
Frequent internal server 500 errors - adding quiz, printing reports Picture of Farhan Karmali Farhan Karmali 0 Farhan Karmali
Tue, Dec 15, 2015, 3:31 AM
Moodle & PHP 7.0 (RC4) - Performance Retake Picture of Usman Asar Usman Asar 8 Usman Asar
Thu, Dec 10, 2015, 3:27 PM
New (and free) uptime monitoring tool Edu Labs Colombia Juan Gabriel Edu Labs 0 Juan Gabriel Edu Labs
Thu, Dec 10, 2015, 8:31 AM
Recommend Settings Amazon AWS (Managed by Cloudways) Picture of Seth Mengal Seth Mengal 6 Seth Mengal
Wed, Dec 9, 2015, 9:47 PM
Many small videos in courses Picture of Sonja Sperber Sonja Sperber 0 Sonja Sperber
Wed, Dec 9, 2015, 1:43 AM
Moodle performance vs. large courses Picture of Callahan Harry Callahan Harry 7 Tim Hunt
Tue, Dec 8, 2015, 4:21 PM
Moodle Slow Page Loads - PHP running preg_match_all() for 30+ seconds Picture of Andy Sayler Andy Sayler 2 Andy Sayler
Sat, Dec 5, 2015, 5:39 AM
Ideal Server Specs Picture of Stacy Rempel Stacy Rempel 5 Visvanath Ratnaweera
Sat, Dec 5, 2015, 3:52 AM
Moodle slow after upgrade to 2.9.3+ Picture of Ju Groen Ju Groen 1 Visvanath Ratnaweera
Sat, Dec 5, 2015, 2:11 AM
filling up drive Picture of james Jones james Jones 6 Visvanath Ratnaweera
Sat, Dec 5, 2015, 2:04 AM
Moodle downgrade Picture of Daniel Cheow Daniel Cheow 2 Daniel Cheow
Thu, Dec 3, 2015, 3:52 PM
Hardware ( server ) specs for 2000 users Picture of ahmed elgendey ahmed elgendey 3 Visvanath Ratnaweera
Thu, Dec 3, 2015, 2:39 AM
Moodle Performance Problems (split) Picture of Hierony Manurung Hierony Manurung 12 Hierony Manurung
Wed, Dec 2, 2015, 6:14 PM
Set Up Memcached and Memcache for Windows 2008 and IIS Picture of Paul L Paul L 4 Alok Garg
Wed, Dec 2, 2015, 12:50 PM
Same/Different Moodle courses Sunny SS Khew 1 Visvanath Ratnaweera
Tue, Dec 1, 2015, 11:23 PM
1000 concurrent users Mexican Tux Enrique Martinez Roldan 12 Howard Miller
Thu, Nov 26, 2015, 5:47 PM
apache is eating all the CPU, 0% idle Picture of Eslam Gamie Eslam Gamie 23 Howard Miller
Thu, Nov 26, 2015, 5:43 PM
Improve Moodle performance Floyd Saner - Tail of the Dragon, U.S. 129, NC Floyd Saner 5 Visvanath Ratnaweera
Wed, Nov 25, 2015, 6:02 PM
Cloudflare configuration on Moodle.org Picture of Cathal O'Riordan Cathal O'Riordan 8 Matthew Spurrier
Tue, Nov 24, 2015, 9:17 AM
Moodle 2.9 on WAMP Picture of Gavriel Goidel Gavriel Goidel 1 Tim Hunt
Tue, Nov 24, 2015, 12:47 AM
Memcache user sessions You either love it or you hate it Albert Ramsbottom 10 Rodrigo Carte
Mon, Nov 23, 2015, 7:21 AM
Moodle on shared hosting Picture of Nived Narayanan Nived Narayanan 8 Visvanath Ratnaweera
Fri, Nov 20, 2015, 4:24 AM
Performance issues Picture of Sonja Sperber Sonja Sperber 10 Paul Verrall
Fri, Nov 20, 2015, 12:43 AM
Server crash during chat wtih 2 other persons Moodle 2.4.3 Picture of Gary Lebowitz Gary Lebowitz 9 Gary Lebowitz
Fri, Nov 13, 2015, 1:55 PM
Moodle Keeps Crashing Picture of Graham Stone Graham Stone 4 Graham Stone
Wed, Nov 11, 2015, 10:46 PM
Go Daddy! (Where to?) Picture of Visvanath Ratnaweera Visvanath Ratnaweera 23 Visvanath Ratnaweera
Sat, Nov 7, 2015, 12:42 AM
User site capacities questions Picture of Gio Glez Gio Glez 27 Visvanath Ratnaweera
Wed, Nov 4, 2015, 7:30 PM
Where is the keep log files for... Wellingtonia Tree Heather P 2 Heather P
Fri, Oct 30, 2015, 7:27 PM
Moodle Hardware for 10,000 users and 300 users concurrent(at the same time) Picture of craig dsouza craig dsouza 11 Usman Asar
Fri, Oct 30, 2015, 7:13 PM
Moodle web servers locking up Picture of Hittesh Ahuja Hittesh Ahuja 12 Visvanath Ratnaweera
Thu, Oct 29, 2015, 4:04 PM
"recent conversations" screen slow to load Picture of David Rogers David Rogers 5 David Rogers
Thu, Oct 29, 2015, 5:45 AM
What to cache with MemCached Picture of curt bixel curt bixel 19 Visvanath Ratnaweera
Tue, Oct 27, 2015, 7:15 PM
My Moodle is very slow 2 weeks ago Picture of zizo zizo zizo zizo 8 zizo zizo
Tue, Oct 27, 2015, 12:58 PM
Just starting Picture of Windell Frederick Rebong Windell Frederick Rebong 11 ben reynolds
Tue, Oct 27, 2015, 8:44 AM
Requirements for moodle hardware and settings to support 5k users simultaneouly Picture of deepa ganu deepa ganu 4 Usman Asar
Sat, Oct 24, 2015, 3:19 PM
Terrible Performance Using Upload Course Tool + Restore From Template Course Picture of Peter Sercombe Peter Sercombe 1 Visvanath Ratnaweera
Sun, Oct 18, 2015, 2:20 AM
Memcache issues in a clustered environment Picture of Matthew Davidson Matthew Davidson 3 Nadav Kavalerchik
Fri, Oct 16, 2015, 10:49 PM
Can't seem to get sessions saved in memcached Picture of Matej Zerovnik Matej Zerovnik 12 Mehmet Sen
Fri, Oct 16, 2015, 5:45 AM
Realtime testing for Moodle2.9 Picture of anita bankar anita bankar 3 Jeff White
Tue, Oct 13, 2015, 10:47 PM
Course Format Impact on Performance Picture of Paul L Paul L 1 Visvanath Ratnaweera
Fri, Oct 9, 2015, 10:23 PM
HTML 5 Support in Moodle 2.5 RTR Digital Logo RTR Admin 1 Simon Rediss-Whitfield
Fri, Oct 9, 2015, 6:36 PM
HTTP 407's, Byteserving and Chrome. Picture of James McLean James McLean 1 Howard Miller
Fri, Oct 9, 2015, 6:26 PM
INSUFFICIENT RESOURCES Error Picture of Santhosh Samban Santhosh Samban 1 Ken Task
Fri, Oct 9, 2015, 1:53 PM
php Picture of bob humble bob humble 3 bob humble
Thu, Oct 8, 2015, 4:11 AM
CloudFlare setup with Moodle Picture of Cathal O'Riordan Cathal O'Riordan 19 curt bixel
Wed, Oct 7, 2015, 9:17 PM
Hardware specs for moodle Picture of M Khalid Zaini M Khalid Zaini 3 Visvanath Ratnaweera
Mon, Sep 28, 2015, 10:19 PM
Exporting large logs to Excel causes CPU spike and server unresponsiveness Picture of Trevar Pearce Trevar Pearce 4 Visvanath Ratnaweera
Fri, Sep 25, 2015, 4:23 AM
Some Tips on Getting nginx+php-fpm working Picture of Kory Prince Kory Prince 12 Владимир Зотов
Thu, Sep 24, 2015, 4:53 PM
Load Testing Moodle 2.9 with 250 concurrent users Picture of Montai Settapokin Montai Settapokin 3 Tony Nguyen
Thu, Sep 17, 2015, 3:08 AM
Slow video upload - assignment feedback files Picture of David Conrad David Conrad 2 Simon Rediss-Whitfield
Wed, Sep 16, 2015, 11:35 PM
can not open recent msg history Picture of Serg Tolpygin Serg Tolpygin 0 Serg Tolpygin
Wed, Sep 16, 2015, 8:13 PM
2.9.1 Huge Memory Usage when first logging in Picture of Phil Loaiza Phil Loaiza 8 Montai Settapokin
Tue, Sep 15, 2015, 6:08 PM
Expensive SQL queries when logging in Picture of Montai Settapokin Montai Settapokin 2 Montai Settapokin
Tue, Sep 15, 2015, 5:59 PM
lImit to number or uses in moodle 2.9 NOT concurrent users, just total users Picture of Roger Saffle Roger Saffle 2 Howard Miller
Tue, Sep 15, 2015, 5:50 PM
1200 users Mike Shea Michael Shea 6 Howard Miller
Tue, Sep 15, 2015, 5:48 PM
SCORM flash too slow Picture of René Alvarez René Alvarez 5 Matteo Scaramuccia
Tue, Sep 15, 2015, 1:53 AM
What is the impact of not keeping Moodle log files for more than 3 months? Wellingtonia Tree Heather P 0 Heather P
Fri, Sep 11, 2015, 11:12 PM
Cloud hosting for Moodle: Options and pros/cons Picture of Shail Chopra Shail Chopra 8 Ruvi Wijesuriya
Fri, Sep 11, 2015, 5:50 AM
Performance perspectives - a little script Picture of sam marshall sam marshall 91 Najeeb Haider Zaidi
Fri, Sep 4, 2015, 11:48 PM
Moodle Very slow for users who are not administrators Picture of Cristian Matos Cristian Matos 7 Marcus Green
Fri, Sep 4, 2015, 4:29 PM
Moodle website loading very slow Picture of Rajakumar Jillella Rajakumar Jillella 1 Paul Verrall
Fri, Sep 4, 2015, 4:08 PM
Moodle freezing when multiple users are logged in and running a SCORM Package Picture of Mike Winslow Mike Winslow 11 Howard Miller
Wed, Sep 2, 2015, 2:56 AM
Evaluation page doesn't work after update 2.4 to 2.9 Picture of Enzo Cappelluti Enzo Cappelluti 1 Howard Miller
Tue, Sep 1, 2015, 9:08 PM
Getting 404 errors when load testing Moodle 2.9 with only 10 concurrent users Picture of Montai Settapokin Montai Settapokin 10 Montai Settapokin
Mon, Aug 31, 2015, 10:57 AM
problem on the mdl_grade_grades_category moodle 2.8, high cpu use in my server of databases. Picture of Eduardo Miranda Eduardo Miranda 3 Susan Mangan
Thu, Aug 27, 2015, 2:07 AM
memcached Store not ready Picture of Peter Dorman Peter Dorman 7 Peter Dorman
Tue, Aug 25, 2015, 7:29 PM
Solaris or not Solaris Albany, Oregon Frank Lister 7 Howard Miller
Tue, Aug 25, 2015, 4:19 AM
New setup questions Picture of Chris Cormier Chris Cormier 16 Chris Cormier
Mon, Aug 24, 2015, 9:47 PM
Load balancer problem with 100 simultaneous users taking a quiz Picture of Don Hinkelman Don Hinkelman 28 Christian Stehle
Mon, Aug 24, 2015, 8:08 PM
Siteground.com as a Moodle host Aloha! Jeff Mehring 34 miguel quintero
Sun, Aug 23, 2015, 12:19 AM
ClamAV on Centos7 Picture of Web HEP Web HEP 8 Web HEP
Tue, Aug 18, 2015, 8:25 PM
Unable to edit quiz after upgrade from 2.7.3+ to 2.8.1+ Picture of Joe Chapman Joe Chapman 42 Ewout ter Haar
Tue, Aug 18, 2015, 2:12 AM
splitting database to Amazon S3 Picture of graham green graham green 12 Paul Verrall
Mon, Aug 17, 2015, 7:03 PM
Any reason not to virtualize Moodle on Hyper-v Picture of Ed Henzel Ed Henzel 9 Ed Henzel
Mon, Aug 17, 2015, 3:01 PM
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