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  
Moodle 2.4 struggling with over 20-30 or so users
Picture of David Smith David Smith
4 Tue, Feb 26, 2013, 9:36 PM
Moodle 2.3 running Red Hat Enterprise - poor performance
Picture of Doris Johnson Doris Johnson
10 Thu, Feb 21, 2013, 2:02 AM
Moodle Hardware Requirement For 300 Concurrent & 550 peak?
Picture of Moole Addict Moole Addict
13 Tue, Feb 5, 2013, 7:12 PM
Image Optimization
Picture of curt bixel curt bixel
7 Sun, Jan 6, 2013, 10:32 PM
Enabling automatic backups slows down server now
Picture of Ethan Z Ethan Z
14 Fri, Feb 15, 2013, 5:17 AM
Not able to run Statistics-Moodle 2.2.6
Picture of richa rathore richa rathore
1 Tue, Feb 19, 2013, 2:55 PM
Intermittent unavailability and logging of database unavailability
Picture of Jonathan Rabson Jonathan Rabson
3 Sat, Feb 16, 2013, 11:21 AM
Can 2.4 run on a Linux red hat 5.8 server - what is the best mysql for it
Picture of Eric Hagley Eric Hagley
6 Fri, Feb 15, 2013, 1:29 PM
תשובה ל: Update on PHP-accelerators, WinCache problems
Picture of עומר המאירי עומר המאירי
10 Mon, Sep 24, 2012, 9:05 PM
Terrible performance with GoDaddy VDS - Help!
Picture of Gary Lebowitz Gary Lebowitz
5 Mon, Feb 11, 2013, 8:24 PM
PHP-accelerators for the Windows platform
Picture of Luis de Vasconcelos Luis de Vasconcelos
17 Sat, Mar 12, 2011, 12:21 AM
Php acelerator in Windows server
Picture of Mari Cruz García Mari Cruz García
2 Mon, Feb 11, 2013, 8:04 PM
List of enrolled user for course takes forever!
Picture of Olja Petrovic Olja Petrovic
1 Fri, Dec 14, 2012, 1:39 AM
Is this amount of files correct? - performance increase help please
Picture of Jason [Moodle Enthusiast] Jason [Moodle Enthusiast]
4 Fri, Feb 8, 2013, 12:41 AM
Problem with Godaddy Virtual Dedicated Server nd Moodle 2.3.3
Picture of Gary Lebowitz Gary Lebowitz
11 Sun, Feb 3, 2013, 7:05 PM
Moodle Version 2.3.3+ Running on Windows 8 Server
Picture of Tammy Brice Tammy Brice
1 Sat, Feb 9, 2013, 12:20 AM
JMeter: Page should automatically redirect
Picture of Yulstar Lukimin Yulstar Lukimin
3 Thu, Jan 10, 2013, 2:22 PM
Need some advise
Picture of Mark Tomlinson Mark Tomlinson
4 Thu, Jan 31, 2013, 1:07 AM
Moodle 2.4.1 performance running slow
Picture of Kieran Briggs Kieran Briggs
11 Tue, Jan 29, 2013, 5:20 PM
Does location affecting moodle site performance
Picture of cscl cscl cscl cscl
2 Tue, Jan 29, 2013, 6:29 PM
Bitnami Cloud Hosting w/AWS
Picture of Heidi Gartenberg Heidi Gartenberg
3 Mon, Jan 28, 2013, 3:51 PM
Moodle 2.2 Choked
Picture of Robert Shelton Robert Shelton
5 Fri, Nov 2, 2012, 12:21 AM
Moodle 1.9 to 2.2 Db performance issue
Picture of Aswin Satish Aswin Satish
5 Sat, Jan 26, 2013, 11:27 PM
Best accelerator for me
Picture of roc mehra roc mehra
3 Thu, Dec 20, 2012, 2:08 PM
Equivalent to MaxKeepAliveRequests in Windows IIS7
Picture of Mari Cruz García Mari Cruz García
2 Wed, Jan 16, 2013, 6:12 PM
Moodle 2.4 with Oracle RAC
Picture of Antonio Piedras Antonio Piedras
5 Wed, Jan 23, 2013, 3:54 PM
High availability - MySQL cluster v's replication (II)
Picture of Moo pin Moo pin
0 Tue, Jan 22, 2013, 6:23 PM
performance issue on moodle
Picture of Richard Chiha Richard Chiha
4 Mon, Jan 21, 2013, 6:08 PM
Quiz performance with large concurrency
Picture of Ray Morris Ray Morris
5 Sat, Jan 19, 2013, 12:17 AM
How to conduct quiz for 15-20 thousand student in Moodle 2.3
Picture of Dhastha Gheer Dhastha Gheer
5 Fri, Jan 18, 2013, 9:42 PM
Optimizing for Grade Import and stopping: "Timeout waiting for output from CGI script"
Picture of Daniel Lombardo Daniel Lombardo
4 Sun, Jan 13, 2013, 5:14 AM
Workaround to load files without file.php
Picture of Biel Frontera Biel Frontera
2 Mon, Jan 14, 2013, 7:43 AM
Moodle 2.3.2 + Postgres 9.0.3 + Quizzes(?) = stale db connections
Picture of Mike Kelly Mike Kelly
2 Wed, Nov 7, 2012, 4:32 AM
The quiz function of moodle 2.3.2 seems to put quite a strain on a server
Picture of curt bixel curt bixel
25 Sun, Oct 7, 2012, 4:32 AM
Same application,different hardware,No change in performance
Picture of shrikant gakhare shrikant gakhare
25 Sun, Dec 30, 2012, 12:36 AM
No performance Improvement after migration to new hardware
Picture of shrikant gakhare shrikant gakhare
7 Fri, Dec 28, 2012, 2:02 PM
Upgrading Moodle (PHP and Mysql) and Hardware for Large IT Company
Picture of shrikant gakhare shrikant gakhare
4 Fri, Oct 5, 2012, 8:25 AM
Performance impact of user profile images?
Picture of David Scotson David Scotson
4 Fri, Jan 4, 2013, 6:32 PM
Looking for a web hosting for moodle. Any recommendation?
Picture of Robert Guttenberg Robert Guttenberg
18 Sun, Jan 14, 2007, 9:59 PM
CPU USAGE 100%
Picture of roc mehra roc mehra
16 Wed, Dec 19, 2012, 2:17 PM
Moodle 2.4 very slow
Picture of CP Lau CP Lau
3 Tue, Dec 25, 2012, 8:05 PM
Error after months
Picture of Dr. Nellie Deutsch Dr. Nellie Deutsch
2 Mon, Dec 24, 2012, 11:46 PM
CPU usage 100% on NoSupportLinuxHosting
Picture of Dan O'Reilly Dan O'Reilly
11 Thu, Dec 20, 2012, 7:15 AM
bandwidth, RAM - 50 users
Picture of Magnolia Serate Magnolia Serate
10 Tue, Dec 18, 2012, 4:25 AM
My Moodle is gradually running slower
Picture of A. John Peters A. John Peters
2 Tue, Nov 27, 2012, 11:30 AM
HW specs for Application and Database server
Picture of Yulstar Lukimin Yulstar Lukimin
1 Mon, Dec 17, 2012, 6:37 PM
Migrating from LAN to internet
Picture of shiva k shiva k
3 Sat, Nov 3, 2012, 3:44 PM
Disabling activity logging
Picture of Ben Goodwin Ben Goodwin
2 Wed, Jun 22, 2005, 11:07 PM
eAccelerator
Picture of jonnym m jonnym m
7 Thu, Nov 8, 2012, 10:00 PM
Moodledata Directory
Picture of R.T. Brown R.T. Brown
2 Tue, Dec 4, 2012, 11:57 PM
Mirroring /Replication
Picture of Jan Willem Smeenk Jan Willem Smeenk
6 Fri, Jan 19, 2007, 7:21 PM
Moodle Running Slow 2.0 (Memory keeps maxing out)
Picture of Ryan Nelson Ryan Nelson
17 Sat, Mar 24, 2012, 2:17 AM
2 Web Server to One Mysql
Picture of Shay Hanna Shay Hanna
4 Mon, Nov 26, 2012, 8:31 PM
Two recent blog posts on performance
Picture of Visvanath Ratnaweera Visvanath Ratnaweera
2 Fri, Nov 9, 2012, 5:14 PM
Slow speed linked to scripting problem?
Picture of Ali West Ali West
3 Thu, Nov 15, 2012, 6:13 PM
700 Concurrent users
Picture of jaffa jay jaffa jay
12 Wed, Nov 14, 2012, 9:21 PM
Performance problems in Moodle 2.3
Picture of Esteban Sánchez Esteban Sánchez
9 Tue, Nov 13, 2012, 8:04 PM
driver oci8 for Oracle
Picture of Esteban Sánchez Esteban Sánchez
0 Thu, Nov 15, 2012, 5:14 PM
Improving the performance of quizzes
Picture of Sam Mudle Sam Mudle
5 Fri, Nov 9, 2012, 1:32 PM
Moving from V2.0.x to 2.3.2
Picture of Humanage SRL Humanage SRL
8 Tue, Oct 23, 2012, 12:43 AM
I use eAccelerator 0.9.6.1 but cache scripts = 1 all the time Why?
Picture of Frankie Kam Frankie Kam
12 Fri, Jan 14, 2011, 4:26 AM
MySQL Master-Master Replication
Picture of jason everling jason everling
4 Wed, Nov 7, 2012, 4:35 AM
requirements
Picture of Nitharshanaa Shanmuganathan Nitharshanaa Shanmuganathan
2 Fri, Nov 9, 2012, 1:32 AM
Any suggestions for a new server setup?
Picture of Eric Smith Eric Smith
3 Sat, Nov 3, 2012, 6:43 AM
general
Picture of Nitharshanaa Shanmuganathan Nitharshanaa Shanmuganathan
2 Wed, Nov 7, 2012, 11:38 PM
CAS Browser Looping
Picture of Michael Haskell Michael Haskell
4 Thu, Oct 25, 2012, 9:56 AM
My "resource use" has spiked 100% after introducing quizzes
Picture of Sam Mudle Sam Mudle
4 Fri, Nov 2, 2012, 10:33 AM
Extremely Slow
Picture of Gerrit Anderson Gerrit Anderson
1 Sun, Nov 4, 2012, 6:38 AM
Configuring Moodle with Apache2 load balancer
Picture of Dhastha Gheer Dhastha Gheer
3 Fri, Nov 2, 2012, 6:26 PM
Need your advice.
Picture of Ben S Ben S
2 Thu, Nov 1, 2012, 10:30 PM
High amount of data traffic
Picture of Daran Price Daran Price
5 Fri, Oct 5, 2012, 4:30 PM
Google Bots
Picture of Chris Meyer Chris Meyer
1 Fri, Oct 26, 2012, 2:11 AM
mod_bwshare setting for moodle
Picture of Frank B Frank B
0 Thu, Oct 25, 2012, 12:13 AM
Varnish Config
Picture of Justin Hunt Justin Hunt
2 Thu, Oct 4, 2012, 4:34 PM
Moodle bandwidth
Picture of Nitharshanaa Shanmuganathan Nitharshanaa Shanmuganathan
9 Thu, Oct 18, 2012, 6:21 PM
VPS or dedicated Server for Moodle ?
Picture of Aurélien Vatinel Aurélien Vatinel
3 Sat, Oct 13, 2012, 7:18 AM
Quizzes freeze everything up
Picture of Troy Garrett Troy Garrett
9 Fri, Oct 12, 2012, 7:41 AM
Best Moodle version for Linux Server
Picture of John Araújo John Araújo
2 Fri, Oct 12, 2012, 2:48 AM
Redhat or SUSE? 32 bit or 64 bit?
Picture of Tabitha Roder Tabitha Roder
6 Thu, Aug 16, 2012, 12:17 PM
Best Linux distro for Moodle
Picture of John Araújo John Araújo
4 Thu, Oct 11, 2012, 1:39 AM
Pollyanna question
Picture of Derek Chirnside Derek Chirnside
5 Thu, Sep 27, 2012, 1:46 PM
Site toooooooo slow
Picture of Annie Price Annie Price
9 Tue, Oct 9, 2012, 5:12 AM
Further slowdown and incompatability in move from 2.2. to 2.3
Picture of Richard van Iwaarden Richard van Iwaarden
16 Tue, Sep 25, 2012, 9:57 PM
Mac Mini Server
Picture of Conor Power Conor Power
5 Mon, Feb 6, 2012, 3:10 AM
Timeout problems when editing in Moodle 2.2.3
Picture of Gary Lebowitz Gary Lebowitz
8 Thu, Sep 27, 2012, 5:26 PM
Database server of Moodle 2.3.1 is a bottleneck
Picture of CP Lau CP Lau
14 Sun, Sep 16, 2012, 11:58 PM
Extra PHP memory limit options
Picture of Matthew Switlik Matthew Switlik
1 Wed, Oct 3, 2012, 4:44 AM
Delay between quiz question pages (how do I eliminate it?)
Picture of A Guy A Guy
5 Sun, Sep 30, 2012, 1:38 AM
Moodle Performance Test on JMeter
Picture of Elavarasan MS Elavarasan MS
0 Mon, Oct 1, 2012, 3:43 PM
php 100% high utilization
Picture of Sal Kaceli Sal Kaceli
8 Tue, Sep 25, 2012, 8:31 PM
Slowdown and incompatability in move from 2.2. to 2.3
Picture of Bill Steele Bill Steele
5 Sat, Sep 22, 2012, 11:21 AM
Slowdown after 1.9 -> 2.2 migration
Picture of Tamas Csillag Tamas Csillag
2 Thu, Sep 20, 2012, 9:37 PM
Allocating more bandwidth
Picture of curt bixel curt bixel
1 Fri, Sep 21, 2012, 8:02 PM
Intermittent performance problems
Picture of Simon Cole Simon Cole
4 Tue, Sep 18, 2012, 7:54 PM
Slow disk reads with Linux VMs, Moodle 1.9
Picture of Gregor Ronald Gregor Ronald
10 Thu, Sep 13, 2012, 5:11 AM
"MySQL server has gone away"
Picture of Dallen Farmer Dallen Farmer
8 Mon, Sep 17, 2012, 10:56 PM
slow site admin loading
Picture of Tod Anderson Tod Anderson
2 Wed, Sep 12, 2012, 1:28 AM
Slow page loading in Moodle 2.3.1? Try this:
Picture of Paul Nijbakker Paul Nijbakker
1 Fri, Sep 7, 2012, 2:56 PM
Hardware recommendations for my new moodle hosting
Picture of richa rathore richa rathore
6 Mon, Sep 3, 2012, 2:27 PM
no cachetype and rcache option in admin
Picture of CCManager DDeveloper CCManager DDeveloper
6 Sun, Jan 9, 2011, 9:24 PM