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.

Showing 100 of 2642 discussions
  Discussion Started by Replies Last post Created  
User site capacities questions
Picture of Gio Glez Gio Glez
27 Tue, Nov 3, 2015, 11:58 AM
Where is the keep log files for...
Picture of Heather P Heather P
2 Fri, Oct 30, 2015, 6:25 PM
Moodle Hardware for 10,000 users and 300 users concurrent(at the same time)
Picture of craig dsouza craig dsouza
11 Thu, Oct 29, 2015, 3:17 PM
Moodle web servers locking up
Picture of Hittesh Ahuja Hittesh Ahuja
12 Tue, Oct 27, 2015, 7:53 PM
"recent conversations" screen slow to load
Picture of David Rogers David Rogers
5 Sat, Oct 10, 2015, 12:19 AM
What to cache with MemCached
Picture of curt bixel curt bixel
19 Sat, Oct 3, 2015, 2:57 AM
My Moodle is very slow 2 weeks ago
Picture of zizo zizo zizo zizo
8 Wed, Oct 14, 2015, 1:41 PM
Just starting
Picture of Windell Frederick Rebong Windell Frederick Rebong
11 Wed, Jul 29, 2015, 3:59 PM
Requirements for moodle hardware and settings to support 5k users simultaneouly
Picture of deepa ganu deepa ganu
4 Fri, Oct 23, 2015, 3:19 PM
Terrible Performance Using Upload Course Tool + Restore From Template Course
Picture of Peter Sercombe Peter Sercombe
1 Sat, Oct 17, 2015, 9:14 PM
Memcache issues in a clustered environment
Picture of Matthew Davidson Matthew Davidson
3 Thu, Sep 3, 2015, 11:30 PM
Can't seem to get sessions saved in memcached
Picture of Matej Zerovnik Matej Zerovnik
12 Tue, Oct 28, 2014, 11:30 PM
Realtime testing for Moodle2.9
Picture of anita bankar anita bankar
3 Mon, Oct 12, 2015, 4:36 PM
Course Format Impact on Performance
Picture of Paul L Paul L
1 Fri, Oct 9, 2015, 8:58 PM
HTML 5 Support in Moodle 2.5
Picture of RTR Admin RTR Admin
1 Tue, Sep 29, 2015, 12:37 AM
HTTP 407's, Byteserving and Chrome.
Picture of James McLean James McLean
1 Fri, Oct 9, 2015, 11:52 AM
INSUFFICIENT RESOURCES Error
Picture of Santhosh Samban Santhosh Samban
1 Fri, Oct 9, 2015, 1:04 PM
php
Picture of bob humble bob humble
3 Mon, Oct 5, 2015, 10:02 PM
CloudFlare setup with Moodle
Picture of Cathal O'Riordan Cathal O'Riordan
19 Fri, Aug 7, 2015, 11:04 PM
Hardware specs for moodle
Picture of M Khalid Zaini M Khalid Zaini
3 Mon, Sep 28, 2015, 12:48 PM
Exporting large logs to Excel causes CPU spike and server unresponsiveness
Picture of Trevar Pearce Trevar Pearce
4 Thu, Sep 24, 2015, 6:36 AM
Some Tips on Getting nginx+php-fpm working
Picture of Kory Prince Kory Prince
12 Fri, Oct 21, 2011, 8:08 AM
Load Testing Moodle 2.9 with 250 concurrent users
Picture of Montai Settapokin Montai Settapokin
3 Mon, Aug 31, 2015, 9:35 PM
Slow video upload - assignment feedback files
Picture of David Conrad David Conrad
2 Wed, Aug 19, 2015, 12:19 AM
can not open recent msg history
Picture of Serg Tolpygin Serg Tolpygin
0 Wed, Sep 16, 2015, 8:13 PM
2.9.1 Huge Memory Usage when first logging in
Picture of Phil Loaiza Phil Loaiza
8 Fri, Sep 4, 2015, 9:36 PM
Expensive SQL queries when logging in
Picture of Montai Settapokin Montai Settapokin
2 Sun, Sep 13, 2015, 12:29 AM
lImit to number or uses in moodle 2.9 NOT concurrent users, just total users
Picture of Roger Saffle Roger Saffle
2 Tue, Sep 15, 2015, 9:36 AM
1200 users
Picture of Michael Shea Michael Shea
6 Mon, Sep 14, 2015, 5:52 PM
SCORM flash too slow
Picture of René Alvarez René Alvarez
5 Fri, Sep 11, 2015, 12:19 AM
What is the impact of not keeping Moodle log files for more than 3 months?
Picture of Heather P Heather P
0 Fri, Sep 11, 2015, 11:12 PM
Cloud hosting for Moodle: Options and pros/cons
Picture of Shail Chopra Shail Chopra
8 Tue, Feb 21, 2012, 7:32 PM
Performance perspectives - a little script
Picture of sam marshall sam marshall
91 Wed, Oct 25, 2006, 12:13 AM
Moodle Very slow for users who are not administrators
Picture of Cristian Matos Cristian Matos
7 Tue, May 5, 2015, 8:39 PM
Moodle website loading very slow
Picture of Rajakumar Jillella Rajakumar Jillella
1 Fri, Sep 4, 2015, 3:13 PM
Moodle freezing when multiple users are logged in and running a SCORM Package
Picture of Mike Winslow Mike Winslow
11 Thu, Aug 27, 2015, 11:51 PM
Evaluation page doesn't work after update 2.4 to 2.9
Picture of Enzo Cappelluti Enzo Cappelluti
1 Mon, Aug 31, 2015, 4:31 PM
Getting 404 errors when load testing Moodle 2.9 with only 10 concurrent users
Picture of Montai Settapokin Montai Settapokin
10 Thu, Aug 27, 2015, 10:19 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 Wed, Mar 18, 2015, 12:35 AM
memcached Store not ready
Picture of Peter Dorman Peter Dorman
7 Fri, Jul 12, 2013, 5:59 PM
Solaris or not Solaris
Picture of Frank Lister Frank Lister
7 Fri, Aug 21, 2015, 3:20 AM
New setup questions
Picture of Chris Cormier Chris Cormier
16 Tue, Aug 18, 2015, 9:54 PM
Load balancer problem with 100 simultaneous users taking a quiz
Picture of Don Hinkelman Don Hinkelman
28 Tue, Aug 4, 2015, 1:58 PM
Siteground.com as a Moodle host
Picture of Jeff Mehring Jeff Mehring
34 Thu, Jun 28, 2007, 2:39 AM
ClamAV on Centos7
Picture of Web HEP Web HEP
8 Wed, Jul 1, 2015, 5:53 PM
Unable to edit quiz after upgrade from 2.7.3+ to 2.8.1+
Picture of Joe Chapman Joe Chapman
42 Sat, Jan 3, 2015, 12:43 AM
splitting database to Amazon S3
Picture of graham green graham green
12 Wed, Aug 12, 2015, 3:54 PM
Any reason not to virtualize Moodle on Hyper-v
Picture of Ed Henzel Ed Henzel
9 Thu, Aug 13, 2015, 8:50 PM
Filesize Descrepancies On Server
Picture of Mason Colbert Mason Colbert
0 Thu, Aug 13, 2015, 1:06 AM
Memcached possible architecture issue
Picture of Valery Fremaux Valery Fremaux
1 Fri, Aug 7, 2015, 4:51 AM
Login 1000 student at a time on one quiz
Picture of Lalit Thakur Lalit Thakur
35 Tue, Jul 14, 2015, 2:04 PM
Multi-threaded course backup using multi-threaded file compression
Picture of Konrad Lorinczi Konrad Lorinczi
4 Thu, Jul 30, 2015, 1:24 AM
IIS Server clustering
Picture of Albert Ramsbottom Albert Ramsbottom
7 Mon, Jun 22, 2015, 5:46 PM
deleting archived courses from moodledata
Picture of Steven Silvern Steven Silvern
11 Tue, Jul 14, 2015, 2:21 AM
Chrome Device issues (v2.4.0)
Picture of Constance Horne Constance Horne
1 Wed, Jul 15, 2015, 1:03 AM
Moodle Cloud (split from ancient thread)
Picture of Samantha Gartner Samantha Gartner
0 Mon, Jul 13, 2015, 10:30 AM
Moodle 2.8.1. Server Cluster configuration. Apache Crashing with "exit signal Bus error (7)"
Picture of José Antonio Omedes Capdevila José Antonio Omedes Capdevila
20 Mon, Jul 6, 2015, 10:27 PM
Transitioning to SSL network encryption on MySQL servers
Picture of Rebecca O'Connell Rebecca O'Connell
4 Tue, Jun 23, 2015, 5:16 AM
Memcached
Picture of Mr Blue Mr Blue
7 Mon, Jul 6, 2015, 5:58 PM
OPCode cache
Picture of Kevin Burton Kevin Burton
18 Tue, Dec 17, 2013, 1:09 AM
Moodle Resources
Picture of Shyam S Shyam S
8 Fri, Jun 26, 2015, 1:59 PM
Load testing V2.8.x
Picture of Constance Horne Constance Horne
3 Thu, Jun 18, 2015, 4:51 AM
Load Test reveals Access Errors - fonts.gstatic.com (v2.8.4)
Picture of Constance Horne Constance Horne
3 Tue, Jun 23, 2015, 3:38 AM
Memcached!
Picture of Albert Ramsbottom Albert Ramsbottom
4 Tue, Jun 23, 2015, 5:10 PM
An update on cache landscape (Linux-based)
Picture of Visvanath Ratnaweera Visvanath Ratnaweera
14 Wed, May 6, 2015, 3:38 AM
Deploying Moodle on HP Proliant Server
Picture of Chris Ekin Chris Ekin
5 Mon, Jun 22, 2015, 10:21 PM
V2.8.x - How to delete all course participation details
Picture of Constance Horne Constance Horne
2 Thu, Jun 18, 2015, 5:00 AM
mdl_sessions and memcached
Picture of jerrett fowler jerrett fowler
3 Thu, Jun 18, 2015, 9:08 PM
Is Nested Trigger required to be enabled for Moodle?
Picture of Johnny Lo Johnny Lo
2 Tue, Jun 16, 2015, 1:09 AM
My moodle website is too slow
Picture of darajeur darajeur darajeur darajeur
7 Wed, Jun 3, 2015, 4:20 PM
Hosting & file storage in separate locations
Picture of Tony Cunningham Tony Cunningham
3 Sat, Jun 13, 2015, 3:25 PM
Moodle and PHP 7.x
Picture of Usman Asar Usman Asar
2 Sun, Jun 14, 2015, 5:06 AM
JavaScript being called early
Picture of Tzvi Daum Tzvi Daum
3 Thu, Jun 11, 2015, 7:17 AM
MUC
Picture of Albert Ramsbottom Albert Ramsbottom
8 Tue, Jun 2, 2015, 11:42 PM
Moodle slow with admin settings
Picture of Federica Marra Federica Marra
3 Thu, Jun 4, 2015, 8:32 PM
Investigating excessive(?) DB hits
Picture of Brad Smith Brad Smith
3 Thu, Jun 11, 2015, 4:25 AM
Events queue huge
Picture of Conn Warwicker Conn Warwicker
7 Fri, Jun 5, 2015, 8:29 PM
MySQL InnoDB_file_format setting: Antelope or Barracuda?
Picture of Calvin Bu Calvin Bu
3 Fri, Aug 15, 2014, 10:10 PM
Moodle Slow, Resources Great, what could be the problem
Picture of Paul L Paul L
2 Wed, Jun 3, 2015, 8:46 PM
Scheduled tasks - Log cleanup
Picture of Gerald Albion Gerald Albion
1 Thu, Jun 4, 2015, 12:24 AM
Moodle site became very slow after upgrading to 2.8.5
Picture of Garamkhand Surendelg Garamkhand Surendelg
8 Tue, Mar 31, 2015, 12:10 PM
Decentralized Course Materials
Picture of Calvin Vong Calvin Vong
4 Mon, Jun 1, 2015, 3:17 PM
Moodle Crashing Every Night
Picture of Scott Tolan Scott Tolan
15 Wed, May 27, 2015, 5:28 PM
Need cheap moodle hosting provider
Picture of deby williams deby williams
1 Tue, May 26, 2015, 4:47 PM
Contradictory doc on cron jobs for web cluster
Picture of Job Cespedes Job Cespedes
1 Tue, May 26, 2015, 10:56 AM
Hosting on site versus Out Sourcing
Picture of Paul Langdon Paul Langdon
5 Fri, May 22, 2015, 6:23 PM
I/O Needs in a Split System
Picture of Rick Venuto Rick Venuto
9 Thu, May 14, 2015, 10:16 PM
10 Mini-PCs With Pre-Installed Linux
Picture of Visvanath Ratnaweera Visvanath Ratnaweera
11 Fri, Apr 24, 2015, 1:56 PM
Moodle very slow on local Windows high end laptop
Picture of Michel DENIS Michel DENIS
8 Wed, May 13, 2015, 3:51 AM
Which one best moodle hosting server in the world ?
Picture of Kathir Rajaraman Kathir Rajaraman
9 Mon, Apr 27, 2015, 2:38 PM
Moodle MySQL overload error
Picture of Alejandro Calderón Alejandro Calderón
8 Tue, Apr 28, 2015, 4:01 AM
Is there a solution to moodle's chat heavyness?
Picture of Nuno Pinto Nuno Pinto
5 Thu, Apr 30, 2015, 9:42 PM
Moodle Delayed Replication Mirror Site
Picture of Zach M. Zach M.
7 Fri, May 1, 2015, 12:47 AM
Setting Up Memcache with transparent session failover
Picture of Jeff White Jeff White
2 Thu, Jan 29, 2015, 5:05 AM
Share us your help and experience
Picture of zizo zizo zizo zizo
2 Sat, Apr 25, 2015, 6:23 AM
quiz records error?
Picture of Tzafi Z Tzafi Z
1 Thu, Apr 30, 2015, 4:48 PM
fatal error with memcache.php
Picture of Andy Taggart Andy Taggart
1 Mon, Apr 20, 2015, 7:09 PM
Server Requirement
Picture of Mohammad Talat Mohammad Talat
3 Sun, Apr 19, 2015, 2:52 PM
NewRelic RPM & Moodle Errors / Issues
Picture of Seth Mengal Seth Mengal
1 Mon, Apr 20, 2015, 9:52 PM
Setting memcache as default
Picture of Andy Taggart Andy Taggart
7 Thu, Apr 16, 2015, 4:12 PM