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 2638 discussions
| Discussion | Started by | Replies | Last post | Created | |||
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| Too many files problem |
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10 | Thu, Jun 20, 2019, 8:53 PM |
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| Slow Moodle in Thin Clients |
Alec Jordan Buencamino
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0 | Mon, Jun 24, 2019, 10:41 PM |
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| Moodle scalability |
Thinh Dang
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3 | Sat, Jun 15, 2019, 9:24 PM |
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| Memcached store instance disappears after days |
Ryan Chan
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1 | Thu, Jun 20, 2019, 10:46 AM |
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| How to stress test Moodle? |
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4 | Mon, Jun 17, 2019, 2:57 AM |
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| Updating Browsers and OS for better Moodle performance |
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1 | Mon, Jun 17, 2019, 2:56 AM |
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| Redis and stunnel |
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0 | Fri, Jun 14, 2019, 10:41 PM |
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| General performance question |
Heinz Felfe
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15 | Wed, Jun 5, 2019, 10:13 PM |
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| Recent experiences with GlusterFS? |
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0 | Thu, Jun 6, 2019, 10:45 PM |
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| Moodle + AWS EFS + filecachesd is it recommended? |
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2 | Tue, Apr 2, 2019, 6:23 PM |
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| Moodledocs: Summary of cache lock instances |
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3 | Wed, May 22, 2019, 4:44 PM |
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| Simple global search |
Michelle Melton
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0 | Tue, May 28, 2019, 8:05 PM |
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| Globally distributed installation |
Simon Lewis
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10 | Wed, May 22, 2019, 10:45 PM |
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| Tuning FCGI and Apache for Moodle |
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11 | Sat, May 18, 2019, 12:08 AM |
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| configuring redis and APCu |
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3 | Thu, Apr 18, 2019, 7:36 PM |
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| Admin Pages Slow (10-20 sec page loads) |
Tom Palaz
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5 | Tue, May 14, 2019, 5:17 AM |
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| Sudden Proxy Error, no recent system changes |
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8 | Tue, May 14, 2019, 4:49 AM |
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| Moodle file picker not working |
Taj Des
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27 | Thu, Mar 30, 2017, 7:58 PM |
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| Off-boarding ClamAV from web nodes? |
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14 | Wed, Feb 20, 2019, 2:50 AM |
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| PHP errors Moodle 3.4.5, PHP 7.1.27, MySQL 5.7.23.23 |
Barbara Taylor
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9 | Wed, May 1, 2019, 4:41 AM |
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| Redis Cache Lock Issue |
Eric Katchan
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2 | Thu, May 2, 2019, 8:19 PM |
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| Caching & Application Cache in Cluster |
Saad Zaman
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15 | Mon, Apr 22, 2019, 7:44 PM |
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| Moodle 3.4.2 Performance |
sheikh usman
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2 | Tue, Apr 30, 2019, 6:20 PM |
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| Redis cache store instance |
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1 | Tue, Apr 23, 2019, 11:30 PM |
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| Performance with 2500 concurrent users |
Stephen Tod
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5 | Thu, Apr 18, 2019, 1:54 AM |
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| Slow from University server |
Scott Bingham
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1 | Wed, Apr 17, 2019, 6:57 AM |
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| Slowest queries are inserting single row into mdl_sessions |
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14 | Tue, Apr 9, 2019, 8:00 AM |
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| External database log - will it copy existing? |
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2 | Mon, Apr 15, 2019, 11:23 PM |
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| Moodle performance issues with mysql |
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6 | Sun, Mar 10, 2019, 8:19 PM |
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| Flushing all the caches causes a fatal error |
Service Usagers du Numérique
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2 | Fri, Apr 12, 2019, 8:55 PM |
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| Users bounced off the server? |
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2 | Fri, Apr 12, 2019, 9:43 PM |
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| Certain pages loading very slow |
Albert R.
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2 | Tue, Apr 9, 2019, 7:57 AM |
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| [Moodle BenchMark] Need Beta-tester |
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99 | Sun, Jun 26, 2016, 9:51 PM |
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| Cluster setup Help |
Simon Powell
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19 | Fri, Mar 22, 2019, 7:18 PM |
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| What Size Should ramdisk/tmpfs Be for 'temp' and 'cache' ? |
Paul L
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11 | Tue, Mar 5, 2019, 1:49 AM |
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| Moodle Performance Issue with 4 users |
Paul Young
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22 | Fri, Mar 15, 2019, 12:28 AM |
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| XAMPP on Windows Server 2012 running in production |
Michael Hankins
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19 | Sat, Mar 9, 2019, 3:09 PM |
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| Can anyone share a performant Redis cache configuration? |
wz z
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2 | Wed, Mar 13, 2019, 5:07 PM |
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| Data Privacy and Large Moodles |
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2 | Fri, Mar 8, 2019, 6:11 PM |
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| 10K Users - 2 hours Exam |
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2 | Sun, Mar 10, 2019, 8:24 PM |
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| Using config.php for configuration management -> performance impact? |
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6 | Fri, Jan 11, 2019, 7:24 PM |
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| The right Database to use |
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10 | Tue, Feb 26, 2019, 6:28 PM |
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| JMeter Moodle Test |
Richard Brown
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0 | Tue, Feb 26, 2019, 11:15 PM |
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| Web Access of moodle console is slow & www-root consuming 100% CPU Utilization. |
Mohd Hassan Uddin
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0 | Mon, Feb 25, 2019, 4:46 PM |
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| Apache CPU High Usage when opening tasks |
Marc Celeiro
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21 | Thu, Jan 17, 2019, 3:50 AM |
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| Moodle creating Excessive I/Os |
Greg Merriman
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3 | Thu, Feb 21, 2019, 10:13 PM |
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| moodle in azure |
MARIA CENTENO
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7 | Tue, Feb 19, 2019, 3:26 AM |
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| performance with mysqltuner |
mimi nom
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2 | Tue, Feb 19, 2019, 5:19 PM |
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| Error communicating with server |
Randy Foster
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0 | Tue, Feb 19, 2019, 11:10 AM |
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| NFS for dataroot |
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13 | Fri, Dec 7, 2018, 2:13 AM |
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| Overriding server timeout parameter can create chaos |
Pierre Raynaud
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3 | Tue, Feb 12, 2019, 7:48 PM |
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| Moodle deployment on cloud recommended specifications |
Pushpendra Vishal Kaushal
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1 | Wed, Feb 13, 2019, 5:35 PM |
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| Moodle crashing with "Too many open files" |
Debbie Unterseher
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2 | Thu, Feb 7, 2019, 2:05 AM |
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| Exclude webservice user from Moodle logs |
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0 | Thu, Feb 7, 2019, 11:52 PM |
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| Email sent via email_to_user() needs to be queued for background sending |
Chris Yust
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7 | Sat, Feb 2, 2019, 1:43 AM |
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| Moodle System Requirements for 500 Active Concurrent User |
Daoud El Gharib
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6 | Mon, Jan 28, 2019, 10:56 PM |
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| Moodle 3.4 performance is very Low |
Daoud El Gharib
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19 | Sun, May 20, 2018, 4:14 AM |
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| Student upload issues only on certain network |
Jessica Dawson
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7 | Thu, Jan 24, 2019, 9:40 PM |
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| Timeouts during an exam |
Danishka Navin
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13 | Sat, Jan 12, 2019, 2:59 PM |
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| Moodle server resources for 1000+ users |
Redzy Red
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5 | Wed, Jan 16, 2019, 4:42 PM |
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| Slow backup and restore of small quizes where there's a lot of question in course |
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1 | Thu, Dec 13, 2018, 1:40 AM |
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| Requirement for Migrating My Moodle School |
Arnold Yu
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12 | Mon, Dec 10, 2018, 12:45 PM |
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| Can Redis Shared Application cache run on local nodes? |
Jan Derriks
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5 | Sat, Nov 10, 2018, 6:58 PM |
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| 'core_renderer' is taking most of time while loading a page |
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7 | Thu, Oct 11, 2018, 7:40 PM |
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| How to test performance? |
Paul L
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3 | Sat, Nov 24, 2018, 4:10 AM |
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| Php memory_limit, what is the good way |
Aurélien Besson
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3 | Tue, Nov 6, 2018, 4:49 AM |
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| Quizzes are rending Moodle useless :-( |
Jerry Lau
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37 | Thu, Sep 27, 2018, 3:22 AM |
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| MCQ with random question performance issue |
Mihir J
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3 | Thu, Nov 22, 2018, 12:05 PM |
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| Hardware requirement for my setup |
Muhammad Abdullah Ijaz
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2 | Thu, Nov 22, 2018, 1:50 PM |
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| Recommended specs - new moodle installation |
Basti Bunz
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2 | Wed, Nov 14, 2018, 4:35 PM |
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| Anyone running HTTP/2? |
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7 | Wed, Nov 14, 2018, 7:58 AM |
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| PHP-cgi.exe 100% load CPU one core |
István Farkas
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6 | Fri, Nov 9, 2018, 12:23 AM |
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| Big jumps in mysql memory usage |
David Garden
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7 | Wed, Nov 7, 2018, 4:19 PM |
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| SCORM Package breaks from 500 errors on image files? |
David Garden
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1 | Mon, Nov 5, 2018, 4:39 AM |
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| Questions about load balancing methods and the session cache |
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6 | Wed, Oct 31, 2018, 9:08 PM |
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| Uploaded files have long post-processing time |
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1 | Sat, Nov 3, 2018, 5:20 AM |
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| Course-level backup on large-ish instance |
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2 | Tue, Oct 30, 2018, 10:26 AM |
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| moodle for digital exam for about 70 students |
sanaz karimkhani
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8 | Thu, Oct 25, 2018, 5:05 PM |
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| Moodle a mount drive on amazon s3 or any other storage solution |
Daniel Garcia
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5 | Thu, Oct 25, 2018, 1:25 AM |
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| How to test performance, with and without Wincache |
Paul L
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0 | Wed, Oct 31, 2018, 2:02 AM |
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| Hardware for 100 concurrent users |
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10 | Sat, Oct 27, 2018, 5:05 PM |
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| What does "automated backup are already running. Execution delayed"? |
Jerry Lau
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2 | Mon, Oct 15, 2018, 4:51 AM |
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| What do these stats mean in footer |
Jerry Lau
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7 | Fri, Sep 28, 2018, 4:53 AM |
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| Help with Windows Moodle Performance |
J P
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3 | Thu, Dec 14, 2017, 2:02 AM |
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| opcache issue on Moodle 3.4 and PHP 7.0.x |
William Chan
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7 | Thu, Sep 6, 2018, 11:40 PM |
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| File vs Database for Sessions, moodle 3.3 |
Paul L
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6 | Fri, Jun 22, 2018, 3:06 AM |
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| Might have found the cause of slowness in DB |
Jerry Lau
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7 | Wed, Oct 3, 2018, 5:06 AM |
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| optimize performance |
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3 | Tue, Oct 2, 2018, 4:30 PM |
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| Can I modify the .cnf files, delete the innodb files and restart? |
Jerry Lau
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1 | Mon, Oct 1, 2018, 3:45 AM |
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| Moodle Webservices and AWS ElasticCache(memcached) problem |
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0 | Thu, Sep 27, 2018, 4:19 PM |
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| Speeding up Moodle - reindexing entire database would help? |
Jerry Lau
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6 | Wed, Sep 26, 2018, 1:48 AM |
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| Moodle increase size |
Yoel Gutierrez
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3 | Fri, Aug 31, 2018, 10:09 PM |
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| from M3.1 to M3.5 : database issue ? |
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18 | Thu, Sep 20, 2018, 1:49 AM |
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| Why is my small Moodle setup maxing out my server's 1 GB memory limit? |
Ellen Spertus
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23 | Tue, Apr 3, 2018, 8:57 AM |
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| Using AWS for Moodle |
Edilberto Solis, Jr.
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10 | Thu, Aug 3, 2017, 10:42 AM |
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| CDN for beginners |
Hernan O
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2 | Tue, Aug 28, 2018, 10:55 AM |
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| Slow Load Time When Saving a new Activity or Editing an Existing one |
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6 | Sun, Aug 19, 2018, 6:05 AM |
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| Major problems with Moodledata on NFS |
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4 | Thu, Aug 23, 2018, 3:19 PM |
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| Moodle 3.4 -> 3.5 upgrade time |
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1 | Thu, Aug 23, 2018, 11:03 PM |
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| Can't setup memcached for sessions |
Regina B
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0 | Thu, Aug 23, 2018, 10:44 PM |
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