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 2672 discussions
| Discussion | Started by | Replies | Last post | Created | |||
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| High DB Connections [State sleep] |
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5 | Tue, Oct 15, 2019, 2:10 PM |
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| Ghostscript test failing when database on an external server |
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1 | Fri, Oct 18, 2019, 9:30 AM |
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| AWS and EFS page load |
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3 | Thu, Oct 17, 2019, 7:06 PM |
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| database is overloaded |
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4 | Mon, Oct 14, 2019, 7:44 PM |
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| Please share your task processing settings! |
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11 | Thu, Oct 10, 2019, 7:51 PM |
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| Windows Server 2016, IIS10, MSSQL 2016, PHP7.0 with Moodle 3.6.2+ |
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6 | Tue, Sep 24, 2019, 11:07 PM |
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| Quizzes Loads Slow - Other functions working fine |
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5 | Tue, Aug 27, 2019, 2:54 AM |
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| Audio player of audio file doesn't load. |
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0 | Thu, Oct 3, 2019, 4:49 PM |
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| Moodle Caching Config screen |
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1 | Wed, Sep 25, 2019, 1:44 AM |
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| requirments for moodle server |
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5 | Tue, Sep 24, 2019, 4:59 PM |
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| Diagnosing issue with Moodle caching |
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24 | Fri, Aug 9, 2019, 11:06 PM |
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| Moodle 3.7 Quiz for 15000 concurrent users via Mobile App? Is it possible? |
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16 | Thu, Sep 19, 2019, 10:24 PM |
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| [Moodle BenchMark] Need Beta-tester |
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101 | Sun, Jun 26, 2016, 9:51 PM |
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| Replicatring the 'Plugins Overview' page via SQL Configurable Reports block. |
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0 | Sat, Sep 21, 2019, 7:13 AM |
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| installed moodle 3.4.1 and it is slow. |
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3 | Wed, Sep 18, 2019, 3:29 PM |
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| Unable to access "New Event" moodle calendar in IE browser. |
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5 | Fri, Sep 13, 2019, 11:23 AM |
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| I/O File Performance |
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10 | Thu, Aug 29, 2019, 8:34 PM |
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| Hardware /performance suggestion |
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12 | Fri, Sep 13, 2019, 5:21 AM |
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| Help! Database server CPU maxed out |
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14 | Tue, Aug 27, 2019, 7:04 AM |
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| Recommendation of SQLTunner |
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2 | Wed, Sep 4, 2019, 7:15 PM |
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| One node seems to behave worse than others. |
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4 | Mon, Sep 2, 2019, 8:10 PM |
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| Cache store performance reporting |
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4 | Mon, Jul 22, 2019, 2:55 AM |
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| optimize performance |
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6 | Tue, Oct 2, 2018, 4:30 PM |
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| Server load testing |
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2 | Thu, Aug 29, 2019, 1:09 AM |
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| Anybody using a load balancer? |
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7 | Mon, Aug 19, 2019, 7:42 PM |
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| Redis caching and unix socket configuration |
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14 | Mon, Aug 5, 2019, 6:00 PM |
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| Extending browser cache |
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3 | Tue, Aug 13, 2019, 4:13 PM |
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| Moodle REALLY slow with 20 concurrent users |
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12 | Wed, Aug 7, 2019, 11:55 PM |
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| Php memory_limit, what is the good way |
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5 | Tue, Nov 6, 2018, 4:49 AM |
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| Bad RAM-use performance from get_records [MDL-66327] |
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1 | Tue, Aug 6, 2019, 12:50 AM |
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| Certain pages loading very slow |
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3 | Tue, Apr 9, 2019, 7:57 AM |
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| Effect of Debian Buster (PHP 7.3) on Moodle performance? |
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0 | Tue, Aug 6, 2019, 12:10 AM |
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| Moodle Architecture Calculator |
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13 | Fri, Jul 26, 2019, 9:23 AM |
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| External log store and performance |
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2 | Wed, Jul 31, 2019, 3:26 AM |
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| Very Slow Site after migrating to a VPS |
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2 | Tue, Jul 16, 2019, 6:51 PM |
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| Minimum Server Requirements |
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3 | Thu, Jul 11, 2019, 2:59 PM |
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| How do i make site online/public? |
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5 | Wed, Jul 10, 2019, 3:10 PM |
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| Recent experiences with GlusterFS? |
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1 | Thu, Jun 6, 2019, 10:45 PM |
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| Too many opened sessions on Moodle 2.7.20 |
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2 | Wed, Jul 3, 2019, 12:38 AM |
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| Too many files problem |
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11 | Thu, Jun 20, 2019, 8:53 PM |
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| Slow Moodle in Thin Clients |
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0 | Mon, Jun 24, 2019, 10:41 PM |
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| Moodle scalability |
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3 | Sat, Jun 15, 2019, 9:24 PM |
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| Memcached store instance disappears after days |
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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 |
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15 | Wed, Jun 5, 2019, 10:13 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 |
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0 | Tue, May 28, 2019, 8:05 PM |
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| Globally distributed installation |
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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) |
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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 |
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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 |
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9 | Wed, May 1, 2019, 4:41 AM |
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| Redis Cache Lock Issue |
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2 | Thu, May 2, 2019, 8:19 PM |
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| Caching & Application Cache in Cluster |
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15 | Mon, Apr 22, 2019, 7:44 PM |
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| Moodle 3.4.2 Performance |
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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 |
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5 | Thu, Apr 18, 2019, 1:54 AM |
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| Slow from University server |
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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 |
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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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| Cluster setup Help |
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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' ? |
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11 | Tue, Mar 5, 2019, 1:49 AM |
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| Moodle Performance Issue with 4 users |
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22 | Fri, Mar 15, 2019, 12:28 AM |
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| XAMPP on Windows Server 2012 running in production |
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19 | Sat, Mar 9, 2019, 3:09 PM |
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| Can anyone share a performant Redis cache configuration? |
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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 |
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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. |
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0 | Mon, Feb 25, 2019, 4:46 PM |
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| Apache CPU High Usage when opening tasks |
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21 | Thu, Jan 17, 2019, 3:50 AM |
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| Moodle creating Excessive I/Os |
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3 | Thu, Feb 21, 2019, 10:13 PM |
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| moodle in azure |
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7 | Tue, Feb 19, 2019, 3:26 AM |
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| performance with mysqltuner |
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2 | Tue, Feb 19, 2019, 5:19 PM |
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| Error communicating with server |
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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 |
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3 | Tue, Feb 12, 2019, 7:48 PM |
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| Moodle deployment on cloud recommended specifications |
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1 | Wed, Feb 13, 2019, 5:35 PM |
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| Moodle crashing with "Too many open files" |
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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 |
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7 | Sat, Feb 2, 2019, 1:43 AM |
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| Moodle System Requirements for 500 Active Concurrent User |
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6 | Mon, Jan 28, 2019, 10:56 PM |
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| Moodle 3.4 performance is very Low |
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19 | Sun, May 20, 2018, 4:14 AM |
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| Student upload issues only on certain network |
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7 | Thu, Jan 24, 2019, 9:40 PM |
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| Timeouts during an exam |
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13 | Sat, Jan 12, 2019, 2:59 PM |
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| Moodle server resources for 1000+ users |
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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 |
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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? |
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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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