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
Quiz module doesn't load 1 Howard Miller
Requerimientos de Hardware 2 Mauro Ramón
MySQL table format preference 2 Paolo Oprandi
Domain forwarding & how to get my domain in the address bar 25 Maik Riecken
Setup own webserver, open 2Mb dsl access for 1000 users 1 Visvanath Ratnaweera
/admin/index.php 0 Ger Tielemans
Roles performance issues in moodle, whats wrong? 28 denis cahalane
PAYING FOR HELP 1.7 and 1.8 SO SLOW! 10 Mauno Korpelainen
Moodle on Suse Linux 5 Visvanath Ratnaweera
Can I delete unzip folder of eaccelerator? 2 Mohd Heidzir heidzir
Backups Delayed / CPU Spiking 2 Richard Williamson
First Moodle Install, Need Help 3 Van Howell
Login Problem with 30 students 1 Visvanath Ratnaweera
Performance for quizzes 1 Visvanath Ratnaweera
Lost, Lost. Lost 3 Samuli Karevaara
moodle course loading way 2 slow 5 Ken Wilson
MySQL Cluster 3 Ken Wilson
Hardware 0 Bidur Shrestha
Server Recommendations 4 Chris Ainsworth
Moodle 1.7.1 performance problems. 8 Don Hinkelman
very slow on login 0 Ye Chen
Moodle Installation Information 1 Tony Hursh
Apparent problem with indexes 3 Henry Johnson
An installation for 20.000 users, 6.000 users peak. We need advice. 4 Richie Foreman
Advice on reliable hosting provider? 9 Beth Phillips
Wanting to test with mysql 4.0.27 2 Steve Hyndman
Page Loading is too Slow 5 Genner Cerna
redirect after post 0 Genner Cerna
HA Cluster without a NAS and Moodle 1 Visvanath Ratnaweera
eAccelerator vs. APC 23 Genner Cerna
What is doing Moodle ? Our experience with tests and some questions 8 Maik Riecken
Hosting para Moodle 1 Luciano Rodriguez
xampp windows installation package issues 0 Michael Rodgers
Chat is too slow 5 Bill Michaelson
Suggestions for improving performance 18 Genner Cerna
Main Upgrade failed! See lib/db/upgrade.php 0 kathy hooper
Anyone notice a considerable performance difference with IE vs Firefox? 2 Cristi Ionescu
High CPU usage on Windows Platform 2 Visvanath Ratnaweera
Software to test Website under WinXP 2 Grant Carmichael
Resources that actually go through the moodle server 3 Grant Carmichael
Moodle Crashing Need Logs 2 Grant Carmichael
Using Moodle on Student Workstations 5 R Jay
database making course load very slow 1 Ken Wilson
installing moodle on an external server 12 Visvanath Ratnaweera
Requirements Moodle 1.7 2 Valérian G
Will I get better speed from linux? 13 Mikel Stous
Loading Time 10 Visvanath Ratnaweera
I have Two Choices on Servers...Opinions 3 Eric Malone
moodle on a vps? 2 Richie Foreman
Minimal hardware requirements for Moodle 7 Visvanath Ratnaweera
Connecting different servers 1 Visvanath Ratnaweera
Anyone Using MSSQL? 2 Aaron Smith
SMTP question 3 Anthony Borrow
How many mysql processes should there be? 2 Gustav W Delius
FastCGI and PHP 1 Maik Riecken
moodle 1.7 -- one very slow query in particular 6 Jenny Watt
Long Keepalives considered harmful 8 Hugo Martin C. V.
MySql on new openSUSE 10.2 install 6 Eric Henson
What spec server 2 Ian Thomas
MSSQL server optimizations 5 Aaron Smith
Cron script fails 3 Iñaki Arenaza
Hosting vs Own installation 4 Visvanath Ratnaweera
mdl_log getting too big? 7 Joan Vicent Navarro Ferreres
Moodle down a server 3 Juenlis Coss
How to reduce the amount of memory that each httpd process takes? 1 Samuli Karevaara
Moodle installation with Red Hat Linux Enterprise 3 Visvanath Ratnaweera
Number of Moodle can be host 6 Visvanath Ratnaweera
1.7 plus FastCGI PHP 1 Rick Boyce
Recommendations for Moodle server hardware 1 Visvanath Ratnaweera
Windows server for school 5 Visvanath Ratnaweera
huge database 2 bob goossens
Moodle 1.7 and RedHat AS5 1 Jay Lee
Very often random logouts and page loading halts 6 Randy Thornton
New Dedicated Server- Which MYSQL and PHP versions should I use? 9 Todd Thornton
ubuntu - MaxRequestsPerChild 9 Myles Carrick
php accelerator 4 Henry Johnson
IBM Hardware 0 Martin Dougiamas
Dual Core Xeon (Woodcrest) 1 Jay Lee
Moodle Portal 4 Robert Brenstein
Storage sapce requirement 1 Visvanath Ratnaweera
Wich PHP accelerator with WIndows 2003 and PHP 5.1.6 ? 4 Gary Anderson
Performance problem leading to complete crash.. ON A SUPERCOMPUTER 5 Ronnie Brito
Hardware requirements 2 Antonio Almeida
Moodle performance and speed 2 Thomas Robb
Tuning a fedora 4.0 under a 4 proccesor & 16 GB RAM 8 Richie Foreman
Server RAM usage increases after some time without any request 5 Noé Ortega Quijano
Terrible Performance / Flooding Server??? 8 Colin McQueen
Can backup of data w/ 3rd party sw cause problems? 5 Bob Majors
I need help!!!!!! 2 Rodrigo Velazquez
mysql Database Usage 10 Doug Wolfe
Server very slow (Xampp1.5.4/Moodle1.6.2) 13 Cândido Pereira
18,000 Users!! 4 Thomas Haynes
MoodleData folder 3 A. T. Wyatt
mdl_stats_daily 4 Susanne Lowry
Hardware Recommendations for Apache / PHP server 9 Arnor Kristjansson
What size server 13 Ralph Patterson
Server specs. question for Moodle migration (will this fit our requirements?) 5 Arnor Kristjansson
High availability on moodle 0 Visvanath Ratnaweera
Can't login after mysql 4.0 -> 4.1 upgrade 3 Dan Katz
Moodle becomes inaccessible overnight 0 Heather P