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 2651 discussions
  Discussion Started by Replies Last post Created  
Apache best MPM: Prefork, Worker or Event
Picture of Naaman Fallouh Naaman Fallouh
6 Wed, Jul 27, 2016, 4:34 PM
To host or not to host a moodle site
Picture of Teresa Fryer Teresa Fryer
24 Thu, Feb 11, 2016, 4:35 AM
Performance Tip ... shared ...
Picture of Ken Task Ken Task
1 Sun, Jul 17, 2016, 6:39 AM
Moodle 2 is VERY SLOW - Staff are not happy!
Picture of Michael Dean Michael Dean
21 Wed, Jan 25, 2012, 6:10 AM
my platform works very slow
Picture of tasos dimopoulos tasos dimopoulos
3 Wed, Jul 13, 2016, 3:27 PM
Debugging Debug report....
Picture of Steve Ambro v3.1 Steve Ambro v3.1
2 Mon, Jul 11, 2016, 9:42 AM
Redundant Moodle Application
Picture of Matt Polaniecki Matt Polaniecki
4 Thu, Jan 21, 2016, 1:41 AM
Load Testing
Picture of Graham Stone Graham Stone
5 Wed, May 13, 2015, 10:45 PM
Suggestion on buying used server for home use
Picture of snehasis pradhan snehasis pradhan
1 Mon, Jun 27, 2016, 1:01 AM
increase session_data cache size for LMS users
Picture of Billy Zwiener Billy Zwiener
0 Sat, Jun 25, 2016, 12:47 AM
Moodle for a school with around 3000 students
Picture of sushumna rao sushumna rao
6 Wed, Jun 15, 2016, 3:01 PM
Problems to load the Administration Section
Picture of Fabian Belledi Fabian Belledi
3 Thu, Jun 16, 2016, 7:14 PM
"Memcache" cache store what data is cached?
Picture of Thorsten Bieser Thorsten Bieser
4 Wed, Jun 8, 2016, 8:07 PM
PHP5 32bit vs 64bit performance on windows 64 bit server
Picture of Paul L Paul L
4 Fri, Jun 3, 2016, 2:26 AM
'smallest moodle 2.3 server'
Picture of George Varghese George Varghese
6 Wed, Aug 1, 2012, 6:09 AM
Can jMeter Testing of a Moodle - LDAP Authentication
Picture of Ken Task Ken Task
3 Wed, Jun 8, 2016, 2:09 AM
Strange NFS problem in rare case of deleting/creating same file
Picture of sam marshall sam marshall
6 Mon, May 23, 2016, 9:03 PM
Session Partition full and File store path not exist
Picture of R Ali R Ali
4 Mon, May 9, 2016, 11:46 PM
Opcache errors in Windows Event Viewer - how to prevent?
Picture of Perry Way Perry Way
7 Wed, May 18, 2016, 1:35 AM
Opcache question from NON technical user. M2.73
Picture of Dom F Dom F
13 Wed, May 11, 2016, 11:21 PM
siteidentifier is NULL
Picture of Jeff White Jeff White
0 Thu, May 12, 2016, 11:02 PM
Partial load of Moodle pages
Picture of Hittesh Ahuja Hittesh Ahuja
2 Wed, May 11, 2016, 10:36 PM
Really Slow Quiz
Picture of Jessica Tranter Jessica Tranter
11 Sat, May 7, 2016, 5:20 AM
Database read error when user try to login...
Picture of Ricardo Caiado Ricardo Caiado
3 Tue, May 10, 2016, 11:47 PM
Login for anyone takes a long time - after upgrade
Picture of David White David White
25 Sun, May 1, 2016, 4:06 AM
Moodle 2.6 Apache Event MPM
Picture of Juan C. Juan C.
1 Tue, Apr 26, 2016, 6:36 AM
How to load balancing moodle
Picture of Doan Dung Doan Dung
6 Wed, Apr 27, 2016, 7:52 PM
Adelani Adekunle - Moodle made my System slow
Picture of Adelani Adekunle Adelani Adekunle
3 Fri, Apr 22, 2016, 1:55 AM
Preferred php handler for large moodle site
Picture of Farhan Karmali Farhan Karmali
8 Wed, Apr 20, 2016, 1:41 PM
Archiving Completed Students - grades, files, results
Picture of Dan Logan Dan Logan
0 Fri, May 6, 2016, 9:27 AM
trying to preview in a proxy but getting some weird behavior. Is this normal of a proxy?
Picture of Billy Zwiener Billy Zwiener
0 Sat, Apr 30, 2016, 11:59 AM
How might I go about purging huge tables/ can I delete quiz attempts PAST a certain date only?
Picture of Billy Zwiener Billy Zwiener
3 Wed, Apr 27, 2016, 10:59 PM
Crashing under increased activity... But not a lot ... 20 users maybe at the same time?
Picture of Billy Zwiener Billy Zwiener
6 Wed, Apr 27, 2016, 3:05 AM
Blank page returned when i access by admin
Picture of Doan Dung Doan Dung
2 Tue, Apr 26, 2016, 11:35 AM
Moodle data folder on a shared ntfs volume
Picture of Heather P Heather P
13 Thu, Mar 17, 2016, 11:55 PM
When to build a server cluster for Moodle (with examples)?
Picture of Visvanath Ratnaweera Visvanath Ratnaweera
12 Mon, Mar 7, 2016, 11:31 PM
How have people spec'd thier environment?
Picture of John Rickard John Rickard
1 Thu, Apr 14, 2016, 7:04 PM
Performance of Moodle site
Picture of Rajakumar Jillella Rajakumar Jillella
2 Wed, Apr 20, 2016, 12:27 PM
Disk space, duplicate?
Picture of Chris Swaffield Chris Swaffield
3 Wed, Apr 13, 2016, 2:01 AM
Microsoft Azure Encyption
Picture of Albert Ramsbottom Albert Ramsbottom
4 Tue, Apr 12, 2016, 7:08 PM
Advice on preferred hardware setup for upgrade and cloud use
Picture of Jerry Lau Jerry Lau
9 Fri, Apr 8, 2016, 2:31 AM
Amazon AWS
Picture of Albert Ramsbottom Albert Ramsbottom
12 Wed, Feb 12, 2014, 6:46 PM
Very Large Moodle Installation
Picture of Greg Shaw Greg Shaw
4 Wed, Mar 30, 2016, 10:25 PM
Filesystem recommendations for cross-network HA setup?
Picture of Brad Smith Brad Smith
20 Sat, Mar 12, 2016, 3:47 AM
How do I prune mdl_log table?
Picture of Sean McKay Sean McKay
10 Thu, Jan 10, 2008, 3:06 AM
High CPU when Loading SCORM (in the deep end)
Picture of Simon Harbinson Simon Harbinson
8 Thu, Feb 11, 2016, 9:15 PM
Nginx + Moodle configuration tips
Picture of Jon Langevin Jon Langevin
5 Sun, Sep 5, 2010, 10:13 AM
system monitoring
Picture of dima maksoud dima maksoud
2 Tue, Mar 8, 2016, 4:17 AM
The site is getting slower and slower for admin and teachers?
Picture of Frankle Lee 李智高 Frankle Lee 李智高
8 Mon, Mar 7, 2016, 11:38 AM
Copying Production Moodledata to Dev Brought Down Production.
Picture of Jeff White Jeff White
7 Fri, Jan 15, 2016, 11:26 PM
Fallview Capital - Hardware issues with Moodle
Picture of Marty Mittelman Marty Mittelman
2 Sun, Mar 6, 2016, 6:16 PM
Moodle Clustering
Picture of Jay Sharpe Jay Sharpe
25 Fri, Oct 27, 2006, 2:03 AM
Performance of the Assignment tool
Picture of Tim Hunt Tim Hunt
0 Tue, Mar 1, 2016, 1:23 AM
Moodle 3 - Recent conversations
Picture of mimi nom mimi nom
4 Thu, Feb 25, 2016, 10:06 PM
Moodle & PHP 7.0 (RC4) - Performance Retake
Picture of Usman Asar Usman Asar
10 Thu, Oct 29, 2015, 7:05 PM
Moodle Connection Time Out Issue
Picture of N B N B
6 Tue, Apr 1, 2014, 8:40 PM
How many cache lock instances must be created when caching with memcached?
Picture of David Ordóñez David Ordóñez
4 Thu, Feb 25, 2016, 9:34 AM
my web very slow
Picture of mo1 jo mo1 jo
4 Sun, Feb 7, 2016, 3:22 AM
Moodle on Windows/IIS/MS SQL - known issues ?
Picture of Angelin Lalev Angelin Lalev
23 Tue, Jan 12, 2016, 12:11 AM
Need help understanding XHProf analysis
Picture of Alexandre Leveille Alexandre Leveille
1 Wed, Feb 17, 2016, 2:24 AM
Munin plugin for Moodle
Picture of Ruslan Kabalin Ruslan Kabalin
19 Fri, Nov 23, 2012, 12:45 AM
Moodle 3.0 very slow on IIS
Picture of josh vonhauger josh vonhauger
3 Sun, Feb 14, 2016, 5:41 AM
Moodle disconnects during chat
Picture of Teresa Fryer Teresa Fryer
2 Fri, Feb 12, 2016, 6:21 PM
Why is 3.0 running so slow
Picture of Clinton Randolph Clinton Randolph
6 Thu, Feb 11, 2016, 11:03 PM
Moodle hangs while trying to view one test results
Picture of Gedas Liugas Gedas Liugas
1 Thu, Feb 11, 2016, 8:34 PM
Any easy way to get notified if the cron is not running?
Picture of Rachel Martin Rachel Martin
6 Thu, Feb 4, 2016, 12:45 AM
25000 users cohort sync
Picture of Susana L. Susana L.
1 Wed, Feb 3, 2016, 3:30 AM
Moodle database Mysql connection/stability problem
Picture of Proyectos Moodle Proyectos Moodle
1 Mon, Feb 1, 2016, 3:52 PM
Rebuilding The Moodle Database Question
Picture of Steven P. Steven P.
2 Tue, Jan 26, 2016, 11:16 PM
Moodle freeze
Picture of Susana L. Susana L.
5 Wed, Jan 13, 2016, 10:40 PM
Current
Picture of Cesar Almanza Cesar Almanza
4 Tue, Jan 12, 2016, 4:52 AM
Sessions in Database and memcached
Picture of Colin Misbach Colin Misbach
2 Wed, Jan 20, 2016, 4:50 AM
New Moodle Slow saving grade changes
Picture of Jason Touw Jason Touw
23 Thu, Jan 7, 2016, 8:42 AM
Concurrent user policy
Picture of rahul borate rahul borate
5 Wed, Jan 20, 2016, 2:02 PM
Your advice and experience is highly appreciated related to moodle speed
Picture of zizo zizo zizo zizo
8 Tue, Jan 19, 2016, 3:57 PM
Another "portable Moodle"? (Ocean: The Linux Web Server That Fits in Your Pocket)
Picture of Visvanath Ratnaweera Visvanath Ratnaweera
0 Tue, Jan 19, 2016, 10:13 PM
Bulk User Action - Problem Download Users
Picture of Proyectos Moodle Proyectos Moodle
0 Tue, Jan 19, 2016, 9:14 PM
Server Configuration
Picture of Tarek Raslan Tarek Raslan
2 Fri, Jan 8, 2016, 1:12 AM
Moodledata S3 project
Picture of Eduardo Kraus Eduardo Kraus
1 Sat, Jan 2, 2016, 1:09 PM
How to simulate user do quiz multi choice use Jmeter !
Picture of Tran The A n Tran The A n
19 Thu, Apr 3, 2014, 4:31 PM
jMeter and Quizzes
Picture of Jason Cameron Jason Cameron
6 Thu, Apr 10, 2014, 10:20 AM
Basic starting help ...
Picture of Pekka Harmoinen Pekka Harmoinen
3 Mon, Dec 21, 2015, 5:53 AM
dcachesize on server going high on my server and causing server problems
Picture of Billy Zwiener Billy Zwiener
2 Sat, Dec 19, 2015, 9:36 PM
PHP memory
Picture of Rama Gundabhat Rama Gundabhat
18 Thu, Apr 16, 2015, 10:59 PM
The coming of HTTP/2
Picture of Ken Task Ken Task
5 Mon, Mar 2, 2015, 12:23 AM
Frequent internal server 500 errors - adding quiz, printing reports
Picture of Farhan Karmali Farhan Karmali
0 Tue, Dec 15, 2015, 3:31 AM
New (and free) uptime monitoring tool
Picture of Juan Gabriel Edu Labs Juan Gabriel Edu Labs
0 Thu, Dec 10, 2015, 8:31 AM
Recommend Settings Amazon AWS (Managed by Cloudways)
Picture of Seth Mengal Seth Mengal
6 Thu, Sep 10, 2015, 6:28 PM
Many small videos in courses
Picture of Sonja Sperber Sonja Sperber
0 Wed, Dec 9, 2015, 1:43 AM
Moodle performance vs. large courses
Picture of Callahan Harry Callahan Harry
7 Mon, Dec 7, 2015, 4:46 PM
Moodle Slow Page Loads - PHP running preg_match_all() for 30+ seconds
Picture of Andy Sayler Andy Sayler
2 Sat, Dec 5, 2015, 3:39 AM
Ideal Server Specs
Picture of Stacy Rempel Stacy Rempel
5 Wed, Dec 2, 2015, 3:42 AM
Moodle slow after upgrade to 2.9.3+
Picture of Ju Groen Ju Groen
1 Fri, Dec 4, 2015, 11:25 PM
filling up drive
Picture of james Jones james Jones
6 Thu, Dec 3, 2015, 7:21 AM
Moodle downgrade
Picture of Daniel Cheow Daniel Cheow
2 Thu, Dec 3, 2015, 2:35 PM
Hardware ( server ) specs for 2000 users
Picture of ahmed elgendey ahmed elgendey
3 Wed, Dec 2, 2015, 11:57 PM
Moodle Performance Problems (split)
Picture of Pupil Senpro Pupil Senpro
12 Tue, Dec 1, 2015, 5:55 PM
Set Up Memcached and Memcache for Windows 2008 and IIS
Picture of Paul L Paul L
4 Fri, Apr 4, 2014, 3:11 AM
Same/Different Moodle courses
Picture of SS Khew SS Khew
1 Tue, Dec 1, 2015, 9:10 AM
1000 concurrent users
Picture of Enrique Martinez Roldan Enrique Martinez Roldan
12 Fri, Aug 8, 2008, 1:36 PM