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 2663 discussions
  Discussion Started by Replies Last post Created  
CSS often fails on IE6/7 (but not FF)
Picture of Shaun Daubney Shaun Daubney
0 Tue, Jul 1, 2008, 8:29 PM
Removing Old Records
Picture of Carl Keller Carl Keller
0 Sat, Jul 5, 2008, 12:28 AM
Reduce bandwidth by 80-85%!!!
Picture of Dakota Duff Dakota Duff
10 Fri, Jul 11, 2008, 11:31 PM
*Minimum* Moodle Setup for cloud computing hosting
Picture of Eric Novikoff Eric Novikoff
18 Fri, Jul 18, 2008, 12:03 AM
porting Linux Moodle to Windows Moodle
Picture of Steve Peters Steve Peters
10 Sat, Jul 19, 2008, 8:35 AM
Dual Dual Xeon's or Dual Quad Harpertowns
Picture of Todd Thornton Todd Thornton
1 Tue, Jul 22, 2008, 1:18 AM
New roll out for approx 250 concurrent users
Picture of philip jones philip jones
4 Tue, Jul 29, 2008, 7:35 PM
Varnish
Picture of Dan Poltawski Dan Poltawski
5 Fri, Aug 1, 2008, 7:40 AM
High availability - MySQL cluster v's replication
Picture of Hugh Morrow Hugh Morrow
11 Fri, Aug 1, 2008, 9:19 AM
Great writeup on Linux disk tuning for DB servers...
Picture of Martín Langhoff Martín Langhoff
1 Mon, Aug 4, 2008, 2:31 PM
1000 concurrent users
Picture of Enrique Martinez Roldan Enrique Martinez Roldan
12 Fri, Aug 8, 2008, 1:36 PM
Tool to estimate server's maximum concurrent users
Picture of Anthony Wright Anthony Wright
3 Sat, Aug 9, 2008, 7:44 PM
Multiple installations vs One installation
Picture of portable jim portable jim
1 Mon, Aug 18, 2008, 2:31 PM
Moodle 1.8+ Poor server response time
Picture of todd vainisi todd vainisi
3 Wed, Aug 20, 2008, 9:23 PM
Moodle 1.9 Very Slow When Creating New Courses
Picture of Dave Townend Dave Townend
3 Thu, Aug 21, 2008, 2:49 AM
Stats problems again - new bug in Moodle 1.9.2?
Picture of Tony Butler Tony Butler
22 Thu, Aug 21, 2008, 9:02 PM
Nginx for our performance tweakers
Picture of Visvanath Ratnaweera Visvanath Ratnaweera
15 Fri, Aug 22, 2008, 4:34 AM
error database failed
Picture of Barbara Schroeder Barbara Schroeder
2 Tue, Aug 26, 2008, 6:49 AM
Content Compression
Picture of Lei Zhang Lei Zhang
2 Wed, Aug 27, 2008, 10:56 AM
Using applets java in moodle
Picture of Ayari Cuevas Ayari Cuevas
2 Sun, Aug 31, 2008, 2:34 AM
Benchmarking MySQL for Moodle
Picture of Manuel de la Torre Manuel de la Torre
1 Mon, Sep 1, 2008, 5:03 AM
Performance issues with a fresh 1.9 install
Picture of Kent Villard Kent Villard
4 Thu, Sep 4, 2008, 9:20 PM
PHP time() returns inconsistent values
Picture of David Hoffmann David Hoffmann
2 Fri, Sep 5, 2008, 12:58 AM
Linux/DB suggestions for home 1.9 server
Picture of greg mushial greg mushial
3 Sat, Sep 6, 2008, 3:45 AM
System Requirements: Moodle for 500 Students
Picture of Adrian Beck Adrian Beck
11 Tue, Sep 9, 2008, 4:21 PM
Login process hanging
Picture of Robert Drew Robert Drew
0 Wed, Sep 17, 2008, 4:55 PM
Sessions in Database problem with Adodb
Picture of Taylor Judd Taylor Judd
19 Wed, Sep 17, 2008, 10:54 PM
A little more perspective ... a module
Picture of Hugh Morrow Hugh Morrow
4 Tue, Sep 23, 2008, 12:17 AM
Performance for external database enrolment
Picture of Ângelo Rigo Ângelo Rigo
0 Tue, Sep 23, 2008, 1:07 AM
Beginner Moodle User
Picture of Patty Weigand Patty Weigand
6 Tue, Sep 23, 2008, 2:56 AM
MySQL running at 100% on beefy server with auto-login
Picture of Charlie Owen Charlie Owen
5 Tue, Sep 23, 2008, 5:32 PM
EACCELERATOR: PHP crashed
Picture of Morten Brydensholt Morten Brydensholt
2 Thu, Sep 25, 2008, 3:36 AM
VMware and Moodle
Picture of Mark Little Mark Little
2 Tue, Sep 30, 2008, 5:23 PM
What do you think about this architecture for 100.000 students?
Picture of Carlos Eduardo Angarita Marquez Carlos Eduardo Angarita Marquez
4 Wed, Oct 1, 2008, 4:48 AM
Server Cluster & Performance Monitoring
Picture of Andrew Bailey Andrew Bailey
2 Thu, Oct 2, 2008, 12:25 AM
best settings for eAccelerator
Picture of Mark Little Mark Little
2 Fri, Oct 3, 2008, 5:23 PM
Big Moodle installation with two different approaches
Picture of Khaled Zamani Khaled Zamani
3 Fri, Oct 3, 2008, 8:40 PM
Performance problems and how we solved
Picture of Jose' Coelho Jose' Coelho
9 Sat, Oct 4, 2008, 5:46 PM
University of Victoria BC, Canada to Etheopia - issues/problems?
Picture of Sue Harper Sue Harper
2 Sun, Oct 5, 2008, 2:15 AM
Why a many page aren't loaded in adminpanel
Picture of Дмитрий Корольчук Дмитрий Корольчук
0 Mon, Oct 6, 2008, 7:14 PM
Moodle installation for different physical sites
Picture of Gabo Nagyr Gabo Nagyr
0 Wed, Oct 8, 2008, 6:17 PM
Is Moodle 64 bit and would you put it on virtual servers?
Picture of Heather P Heather P
9 Mon, Oct 13, 2008, 7:14 PM
APC PHP Accelerator - which "CacheType" to set?
Picture of Phil Hopfner Phil Hopfner
5 Wed, Oct 15, 2008, 6:05 AM
Tool for performance tests
Picture of Stefan Prasse Stefan Prasse
8 Sat, Oct 18, 2008, 10:49 PM
Jmeter Scripts
Picture of Elvedin Trnjanin Elvedin Trnjanin
0 Thu, Oct 23, 2008, 4:20 AM
How many moodle installs on a server?
Picture of Richard MacLemale Richard MacLemale
2 Sun, Oct 26, 2008, 3:20 AM
BUILD A SERVER FOR MOODLE, HOW TO?
Picture of Đinh Lư Giang Đinh Lư Giang
5 Sun, Oct 26, 2008, 3:38 PM
Browser hangs...
Picture of Antonio Tonino Antonio Tonino
1 Tue, Oct 28, 2008, 2:47 AM
Moodle Host Site info requested
Picture of Brad Mills Brad Mills
5 Wed, Oct 29, 2008, 7:45 AM
An AMP tuning guide?
Picture of Red Morris Red Morris
2 Fri, Oct 31, 2008, 9:01 PM
Moodle Cluster Apache crashes
Picture of Thomas Haines Thomas Haines
8 Thu, Nov 6, 2008, 11:28 PM
Moodle.. Server..
Picture of Andrea Andlais Andrea Andlais
5 Wed, Nov 12, 2008, 10:11 PM
Help with settings for a beefy server
Picture of Red Morris Red Morris
5 Thu, Nov 13, 2008, 7:35 PM
Moodle Maintenance
Picture of Kevin Gober Kevin Gober
1 Sat, Nov 15, 2008, 12:05 AM
Slow response times for some + ICMP from Moodle?
Picture of Phil Hopfner Phil Hopfner
1 Sat, Nov 15, 2008, 12:39 AM
performance: normal load + quiz + grading assignments
Picture of Justin Haaga Justin Haaga
38 Tue, Nov 18, 2008, 8:33 AM
Problem of booting after migrating server
Picture of Rey Ong Rey Ong
0 Wed, Nov 19, 2008, 6:14 PM
Looking for moodle certificated for advice (paid)
Picture of Ivan Gutierrez Ivan Gutierrez
2 Fri, Nov 21, 2008, 2:06 AM
Moodle BSD ports performance?
Picture of Kiril Ilarionov Kiril Ilarionov
6 Sun, Nov 23, 2008, 7:45 PM
MySQL much faster that Postgres - is this true?
Picture of Anthony Wright Anthony Wright
11 Sat, Nov 29, 2008, 3:39 AM
RAM requirements
Picture of Alexandre G B Alexandre G B
6 Wed, Dec 3, 2008, 9:51 PM
Dell PowerEdge M600 or Desktop running Ubuntu?
Picture of Fahed Alrafidi Fahed Alrafidi
1 Thu, Dec 4, 2008, 1:33 AM
A moodle setup for 10K simultaneous users
Picture of Srujan K Srujan K
7 Thu, Dec 4, 2008, 9:03 PM
Slow Performance
Picture of Alex 09 Alex 09
2 Thu, Dec 4, 2008, 10:35 PM
Performance tuning tips for tuning a VM
Picture of Scott Karren Scott Karren
2 Fri, Dec 12, 2008, 11:52 AM
Moodle Connection Limitations
Picture of Heena Khan Heena Khan
2 Mon, Dec 15, 2008, 10:22 PM
List of instances where database is accessed
Picture of Swapnil Thakre Swapnil Thakre
2 Sun, Dec 28, 2008, 4:21 AM
seprating moodle servers from moodledata and mysql servers for large amount of users
Picture of Zahra E Zahra E
11 Sun, Dec 28, 2008, 3:32 PM
Random quiz performance problem?
Picture of Per Bressendorff Per Bressendorff
2 Sat, Jan 3, 2009, 7:29 AM
Serious Performance Issues
Picture of Kent Villard Kent Villard
8 Thu, Jan 8, 2009, 3:42 AM
Migrating from Windows VM to Linux VM
Picture of Scott Karren Scott Karren
4 Thu, Jan 8, 2009, 7:49 AM
apache getting stuck
Picture of vivin v vivin v
1 Tue, Jan 13, 2009, 9:54 PM
Moodle.org server specifications
Picture of Jordan Tomkinson Jordan Tomkinson
18 Wed, Jan 14, 2009, 1:02 PM
Basic Newbie Question
Picture of Richard MacLemale Richard MacLemale
8 Tue, Jan 20, 2009, 11:33 PM
Cron Execution can last 5+ hours
Picture of Jamie E Jamie E
10 Wed, Jan 21, 2009, 7:59 PM
Internal hosting versus external hosting
Picture of John Skelton John Skelton
4 Tue, Jan 27, 2009, 9:05 PM
Test Load moodle
Picture of Elio Wong Elio Wong
1 Wed, Jan 28, 2009, 1:23 AM
Windows Vista --Vs-- Windows XP
Picture of Thomas Saccardi Thomas Saccardi
0 Wed, Jan 28, 2009, 4:10 AM
Hosted Linux moodle vs local Windows 2003 server
Picture of John Bonner John Bonner
4 Wed, Jan 28, 2009, 7:50 AM
XML Error when logging to our development environment
Picture of smrithi puli smrithi puli
1 Thu, Jan 29, 2009, 5:02 PM
Apache crashes due to PHP memory error
Picture of Jade Tippett Jade Tippett
14 Thu, Jan 29, 2009, 11:59 PM
Mysql performance help
Picture of cody ensanian cody ensanian
6 Sat, Jan 31, 2009, 12:49 AM
Serious Performance Issues with 1.7
Picture of Mr. Marc Mr. Marc
6 Sat, Jan 31, 2009, 6:24 AM
Apache Performance
Picture of Jon Witts Jon Witts
11 Wed, Feb 4, 2009, 12:02 AM
Looking for examples of really HUGE Moodle installations
Picture of David Mudrák David Mudrák
16 Wed, Feb 4, 2009, 4:46 AM
Which modules does apache need
Picture of Heather P Heather P
0 Wed, Feb 4, 2009, 9:14 PM
Recommended best practice for enterprise Moodle and to improve performance of the system
Picture of HJWUCGA INC. HJWUCGA INC.
5 Thu, Feb 5, 2009, 7:55 AM
hardware recommendations
Picture of seth washeck seth washeck
3 Fri, Feb 6, 2009, 2:56 AM
Apache crash
Picture of Heather P Heather P
7 Fri, Feb 6, 2009, 9:18 PM
Experiments in Performance Optimization
Picture of Dakota Duff Dakota Duff
4 Tue, Feb 10, 2009, 3:57 AM
Slow Moodle Subwebs
Picture of Roger Mepham Roger Mepham
0 Wed, Feb 11, 2009, 5:26 AM
XML page can not be displayed.
Picture of Tawfiqul Bari Tawfiqul Bari
7 Wed, Feb 11, 2009, 11:58 AM
How to estimate Hardware Requirements
Picture of ChanHan Hy ChanHan Hy
1 Thu, Feb 12, 2009, 10:48 AM
Building clustered Moodle hosting environment how much Internet speed?
Picture of Obidjon Yuldashev Obidjon Yuldashev
1 Fri, Feb 13, 2009, 7:05 PM
moodle server very slow for me
Picture of jayaraj mohan jayaraj mohan
4 Sat, Feb 14, 2009, 6:06 PM
Restoring data files and work on Moodle
Picture of DeLea Payne DeLea Payne
0 Thu, Feb 19, 2009, 3:02 AM
Use of memcached in 2.0
Picture of Ashley Holman Ashley Holman
1 Fri, Feb 20, 2009, 2:53 PM
Images missing after mod_gzip implimentation
Picture of Steven O'Donnell Steven O'Donnell
3 Tue, Feb 24, 2009, 1:49 PM
Windows Install: XAMP or Regular Install
Picture of Jasen Walker Jasen Walker
2 Wed, Feb 25, 2009, 10:28 AM
Maxiumum Simultaneous Users
Picture of Alan Clegg Alan Clegg
1 Fri, Feb 27, 2009, 10:22 PM