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.

DiscussionStarted byRepliesLast post
Slow Performance 3 Samuli Karevaara
Urgent Help - Site Down!!! 1 Martin Dougiamas
PHP Downgrade produced connection to MySQL problem 3 Anthony Borrow
safe mode restriction 2 Gert Jan Bouman
Certificate problems 2 Rory Allford
Moodle Slow downs for no reason. 1 Matt Gibson
Apache 2.2 and Moodle 1 Eloy Lafuente (stronk7)
Problems with Apache 2 9 Juan David Martínez Pavony
icons & buttons missing 6 vardo mändla
Help!!!!!! 0 Daymy Tamayo
Hosting recommendation 12 Randy Vermaas
Backup Courses used 2Gb RAM?! 14 Iñaki Arenaza
Parse Error in Smarty.class.php 1 Iñaki Arenaza
slow performance 2 Dan Stowell
New: Performance documentation page 1 Helen Foster
Slow performance 1 Martín Langhoff
slow slow quick quick slow 1 Art Lader
Are You Using Virtual Servers with Moodle? 4 Mikael Ekblom
Moodle on Ubuntu 3 Erik Ringmar
Activity logs hang MySQL 3 Tony Butler
My server doesn't allow me to login 1 Visvanath Ratnaweera
database connection failure 7 N Hansen
UK Data Protection Act 7 Rick Barnes
Upgrading multiple moodle installs. 1 Iñaki Arenaza
Problem with login-language selection box in windows 3 Aniceto Goni
Best Practice for hosting multiple moodle instances 1 Gavin McCullagh
Resource URLs 0 Tim Howarth
admin problem please help... 3 Visvanath Ratnaweera
What do I need? 2 Visvanath Ratnaweera
Grade problem 0 Magsarjav Terbish
Dream Hosting 4 Martin Dougiamas
login problem 1 Visvanath Ratnaweera
The Day is upon us 2 Thomas Haynes
How to install mod_gzip step by step . 3 Max Zúñiga
Anyone experimented with ADOdb C extension? 1 Anthony Borrow
Test-driving Postgres 8.1 and a nifty Pg performance tuning guide... 1 Worth Bishop
mail spooling 6 Martín Langhoff
Moodle became very slow after 5 months of decent speed 3 Bee Bell
Mapped network drive not working as Moodle Data Directory 1 M Moodley
Changing IP to domain name 3 John Dourish
Requesting Server Configuration Advice 6 Michael Penney
2Mbits Internet Connection Speed for hosting moodle site? 10 Visvanath Ratnaweera
Optimum Options for quiz 1 Visvanath Ratnaweera
Configuration for 200 simultaneous quizz users ? 4 Équipe TICEA
100webSpace install moodle how i do it? 2 Michael Hall
mysql_connect() or mysql_pconnect() for quiz module only 0 EL Aprendiz
Issue with Web Hosting and SCORM not working (No input file specified) 1 Pedro Guevara
WIMP Server Hangs 1 Thomas Haynes
Standard Apache Settings? mod_become and "as root" 4 Timothy Takemoto
Change Limit Size Upload File in iBook G4 2 Chris Valentine
Cannot use .PHP extensions 2 Chris Valentine
Server requirements for 5000 users 12 Martín Langhoff
Migrate Moodle from Windows XP to RedHat 9.2 1 Visvanath Ratnaweera
Hosted Server Failed 0 john attwood
Which distribution of Linux should we use? 24 Michael Hall
Maintenance mode from the command line 3 Martín Langhoff
During backup mysql runs at 100% CPU for 10 hours - visitors face very slow site 9 koen roggemans
Hosting requirements for 21,000 students? 5 Visvanath Ratnaweera
News: Open-Source Storage Community Formed 1 Martín Langhoff
MySQL is overloaded 42 Ivo Antoniazzi
Dear documentation team, 10 Samuli Karevaara
Moodle: Load and Speed issues 26 Samuli Karevaara
I'm a MS Server 2003, IIS 6 admin - should we switch to LAMP? 16 Leonhard Küllinger
Exam timeout problem 2 Dawn Wright
CPU QUOTA EXCEEDED: moodle or server problem? 1 Samuel Cochran
Calculating the Needed Size and Speed of a Server 9 Gavin McCullagh
Full v Relative web addresses 9 Lena Persson
Benchmarking Moodle 1 Ed Borasky
Invitation to join my Moodle community 0 Ed Borasky
moving host, what to consider? 12 Bhupinder Singh
problem with sessions? Cannot login 2 Just H
Backup & Server Performance Major Issue 49 Anil Sharma
httpd process size 0 lee asson
Adding label freezes the server 0 Xiaoming Zeng
30 simultaneous CGI/PHP process limit on server 3 Andrew James Smit
Web Hosting for MS Access & MySQL Databases 4 Andrew James Smit
Server Access Statistics for Moodle 5 Genner Cerna
How to monitor the system 9 Joar Herseth
password protection 1 Michael Penney
Storage Capacity Needed 1 fevzi gungor
Information on Moodle Scalability (100,000+ users) 20 Samuli Karevaara
Problems setting up mac OSX web sharing to host moodle locally 12 Rich Eng
Problems with indexes in mySQL 1 Jean-Pierre Pawlak
Webserver coming to a standstill 2 Pieterjan Heyse
Slow A ctivities and Blocks 0 Mark Davies
Installing & Using Moodle on an exsisting WebServer that host other pages 5 Jon Smith
server quota filling up 2 Erik Ringmar
server change, slasharguments, & images 1 Will Taylor
Performance logging. 1 Pieterjan Heyse
Apache--What are you all using for MaxClients setting? [& malloc error] 8 James Dugal
Boosting RSS block and messaging performance 7 Daryl Hawes
does "$CFG->dbpersist = false;" override "msql.allow_persistent = On" 0 Barron Koralesky
Timeouts 2 Brent Lee
Get Hosted and Help Moodle at the Same Time 11 Manish Verma
Website Hosting Service 13 Madan Kumaraswamy
how to move moodledata directory 2 Rory Allford
Apache crash -- malloc: incorrect checksum for freed object -- locks up server and kills moodle 0 Barron Koralesky
pop3 autentification 3 Mikko Toivola
Slow Moving School 5 Antonio Allah
Server set up but upload?? 0 Visvanath Ratnaweera