https://docs.moodle.org/38/en/api.php?action=feedcontributions&feedformat=atom&user=Jonspurs 2026-05-12T00:50:07Z User contributions MediaWiki 1.43.5 https://docs.moodle.org/38/en/index.php?title=Performance_FAQ&diff=67542 2010-01-22T16:35:33Z

<p>Jonspurs: /* How do you define &quot;concurrent users&quot;? */</p> <hr /> <div>{{stub}}<br /> <br /> ===How do you define &quot;concurrent users&quot;?===<br /> As has been repeatedly stressed in the [http://moodle.org/mod/forum/view.php?f=94 Hardware and performance] forum, the load on the server depends primarily on the number of concurrent users, not on the total number of users neither the number of users logged-in at a given time. In this context, the concurrent users are those for whom the server actively doing something (see Wikipedia [http://en.wikipedia.org/wiki/Concurrency_(computer_science) Concurrency]). It may by processing a webpage written in PHP, querying the database or simply transferring a file.<br /> <br /> ===How do I benchmark a Moodle-site?===<br /> You can of course benchmark each component of the software stack: operating system, webserver, database server, PHP (see [[Performance#Obtain_a_baseline_benchmark]]). But there is no easy formula to deduct the maximum number of concurrent users from those results.<br /> <br /> There is a PHP-script, the [http://moodle.org/mod/forum/discuss.php?d=57028 Performance perspectives - a little script], circulating amoung the Moodle-community which calculates a ballpark figure. The current version is attached to the [http://moodle.org/mod/forum/discuss.php?d=57028#p296907 posting on 1. March 2007].<br /> <br /> Warning: Note that running this script on a production server may have unwanted side-effects. You are strongly adviced to run it on a test-site.<br /> <br /> ===What are PHP-accelerators?===<br /> See Wikipedia article [http://en.wikipedia.org/wiki/PHP_accelerator PHP accelerator].<br /> <br /> Available software are documented [[Performance#PHP_performance]].<br /> <br /> ===How do I cluster Moodle?===<br /> <br /> See [[Performance#Scalability]]<br /> <br /> ===How do I replicate Moodle?===<br /> <br /> <br /> <br /> ===My site is very slow, what should I do?===<br /> <br /> First find out &quot;how slow&quot;. (The theme-trick here).<br /> <br /> The next question is, whether the performance is normal or something malfunctions. There are many things which can malfunction:<br /> * hardware<br /> * crashed filesystems, specially network filesystems<br /> * memory leaks or other crashes in the system<br /> * bug in Moodle<br /> * corrupted database<br /> <br /> Or your performance could be &quot;normal&quot; under the given circumstances:<br /> * Is it a root-server, dedicated server, virtual (shared) server<br /> * How much RAM, processing power do you have?<br /> * What is the software stack you use? (Unix or Windows, Apache or IIS, MySQL, PostgreSQL or SQL-Server, ...?)<br /> * how many concurrent users slows the system down<br /> * what modules/activities they use? Check [[Performance#Performance of different Moodle modules]]<br /> * is your networt setup property? DNS, firewalls. Also check local firewalls and other local security tools?<br /> <br /> [[Performance#Obtain a baseline benchmark]] and compare it with the published figures.<br /> <br /> See also: <br /> * [http://moodle.org/mod/forum/discuss.php?d=102978 1000 concurrent users]<br /> * [http://moodle.org/mod/forum/discuss.php?d=103040 Tool to estimate server's maximum concurrent users]<br /> <br /> ===What are the requirements for N users?===<br /> <br /> [http://moodle.org/mod/forum/discuss.php?d=111847 A moodle setup for 10K simultaneous users]<br /> <br /> ===How many users will my installation support?===<br /> <br /> This is another way of asking the same question as above. Please move up.<br /> <br /> ===Which operating system is the best?===<br /> <br /> ===What is the best webserver?===<br /> <br /> ===Should I go for 64 bit or is 32 bit OK?===<br /> <br /> ===What hosting provider do you recommend?===<br /> http://moodle.org/mod/forum/discuss.php?d=99405<br /> <br /> [[Category:FAQ]] I [[Category: Administrator]] I [[Category:Performance]]</div>

Jonspurs https://docs.moodle.org/38/en/index.php?title=Performance_FAQ&diff=67541 2010-01-22T16:34:56Z

<p>Jonspurs: /* How do you define &quot;concurrent users&quot;? */</p> <hr /> <div>{{stub}}<br /> <br /> ===How do you define &quot;concurrent users&quot;?===<br /> As has been repeatedly stressed in the [http://moodle.org/mod/forum/view.php?f=94 Hardware and performance] forum, the load on the server depends primarily on the number of concurrent users, not on the total number of users neither the number of users logged-in at a given time. In this context, the concurrent users are those for whom the server actively doing something (see Wikipedia [http://en.wikipedia.org/wiki/Concurrency_(computer_science) Concurrency]). It may by processing a webpage written in PHP, querying the database or simply transfering a file.<br /> <br /> ===How do I benchmark a Moodle-site?===<br /> You can of course benchmark each component of the software stack: operating system, webserver, database server, PHP (see [[Performance#Obtain_a_baseline_benchmark]]). But there is no easy formula to deduct the maximum number of concurrent users from those results.<br /> <br /> There is a PHP-script, the [http://moodle.org/mod/forum/discuss.php?d=57028 Performance perspectives - a little script], circulating amoung the Moodle-community which calculates a ballpark figure. The current version is attached to the [http://moodle.org/mod/forum/discuss.php?d=57028#p296907 posting on 1. March 2007].<br /> <br /> Warning: Note that running this script on a production server may have unwanted side-effects. You are strongly adviced to run it on a test-site.<br /> <br /> ===What are PHP-accelerators?===<br /> See Wikipedia article [http://en.wikipedia.org/wiki/PHP_accelerator PHP accelerator].<br /> <br /> Available software are documented [[Performance#PHP_performance]].<br /> <br /> ===How do I cluster Moodle?===<br /> <br /> See [[Performance#Scalability]]<br /> <br /> ===How do I replicate Moodle?===<br /> <br /> <br /> <br /> ===My site is very slow, what should I do?===<br /> <br /> First find out &quot;how slow&quot;. (The theme-trick here).<br /> <br /> The next question is, whether the performance is normal or something malfunctions. There are many things which can malfunction:<br /> * hardware<br /> * crashed filesystems, specially network filesystems<br /> * memory leaks or other crashes in the system<br /> * bug in Moodle<br /> * corrupted database<br /> <br /> Or your performance could be &quot;normal&quot; under the given circumstances:<br /> * Is it a root-server, dedicated server, virtual (shared) server<br /> * How much RAM, processing power do you have?<br /> * What is the software stack you use? (Unix or Windows, Apache or IIS, MySQL, PostgreSQL or SQL-Server, ...?)<br /> * how many concurrent users slows the system down<br /> * what modules/activities they use? Check [[Performance#Performance of different Moodle modules]]<br /> * is your networt setup property? DNS, firewalls. Also check local firewalls and other local security tools?<br /> <br /> [[Performance#Obtain a baseline benchmark]] and compare it with the published figures.<br /> <br /> See also: <br /> * [http://moodle.org/mod/forum/discuss.php?d=102978 1000 concurrent users]<br /> * [http://moodle.org/mod/forum/discuss.php?d=103040 Tool to estimate server's maximum concurrent users]<br /> <br /> ===What are the requirements for N users?===<br /> <br /> [http://moodle.org/mod/forum/discuss.php?d=111847 A moodle setup for 10K simultaneous users]<br /> <br /> ===How many users will my installation support?===<br /> <br /> This is another way of asking the same question as above. Please move up.<br /> <br /> ===Which operating system is the best?===<br /> <br /> ===What is the best webserver?===<br /> <br /> ===Should I go for 64 bit or is 32 bit OK?===<br /> <br /> ===What hosting provider do you recommend?===<br /> http://moodle.org/mod/forum/discuss.php?d=99405<br /> <br /> [[Category:FAQ]] I [[Category: Administrator]] I [[Category:Performance]]</div>

Jonspurs https://docs.moodle.org/38/en/index.php?title=Performance_FAQ&diff=67540 2010-01-22T16:34:01Z

<p>Jonspurs: </p> <hr /> <div>{{stub}}<br /> <br /> ===How do you define &quot;concurrent users&quot;?===<br /> As has been repeatedly stressed in the [http://moodle.org/mod/forum/view.php?f=94 Hardware and performance] forum, the load on the server depends primarily on the number of concurrent users, not on the total number of users neither the number of users logged-in at a given time. In this context, the concurrent users are those for whom the server actively doing something (see Wikipedia [http://en.wikipedia.org/wiki/Concurrency_(computer_science) Concurrency]). It may by processing a webpage written in PHP, querrying the database or simply transfering a file.<br /> <br /> ===How do I benchmark a Moodle-site?===<br /> You can of course benchmark each component of the software stack: operating system, webserver, database server, PHP (see [[Performance#Obtain_a_baseline_benchmark]]). But there is no easy formula to deduct the maximum number of concurrent users from those results.<br /> <br /> There is a PHP-script, the [http://moodle.org/mod/forum/discuss.php?d=57028 Performance perspectives - a little script], circulating amoung the Moodle-community which calculates a ballpark figure. The current version is attached to the [http://moodle.org/mod/forum/discuss.php?d=57028#p296907 posting on 1. March 2007].<br /> <br /> Warning: Note that running this script on a production server may have unwanted side-effects. You are strongly adviced to run it on a test-site.<br /> <br /> ===What are PHP-accelerators?===<br /> See Wikipedia article [http://en.wikipedia.org/wiki/PHP_accelerator PHP accelerator].<br /> <br /> Available software are documented [[Performance#PHP_performance]].<br /> <br /> ===How do I cluster Moodle?===<br /> <br /> See [[Performance#Scalability]]<br /> <br /> ===How do I replicate Moodle?===<br /> <br /> <br /> <br /> ===My site is very slow, what should I do?===<br /> <br /> First find out &quot;how slow&quot;. (The theme-trick here).<br /> <br /> The next question is, whether the performance is normal or something malfunctions. There are many things which can malfunction:<br /> * hardware<br /> * crashed filesystems, specially network filesystems<br /> * memory leaks or other crashes in the system<br /> * bug in Moodle<br /> * corrupted database<br /> <br /> Or your performance could be &quot;normal&quot; under the given circumstances:<br /> * Is it a root-server, dedicated server, virtual (shared) server<br /> * How much RAM, processing power do you have?<br /> * What is the software stack you use? (Unix or Windows, Apache or IIS, MySQL, PostgreSQL or SQL-Server, ...?)<br /> * how many concurrent users slows the system down<br /> * what modules/activities they use? Check [[Performance#Performance of different Moodle modules]]<br /> * is your networt setup property? DNS, firewalls. Also check local firewalls and other local security tools?<br /> <br /> [[Performance#Obtain a baseline benchmark]] and compare it with the published figures.<br /> <br /> See also: <br /> * [http://moodle.org/mod/forum/discuss.php?d=102978 1000 concurrent users]<br /> * [http://moodle.org/mod/forum/discuss.php?d=103040 Tool to estimate server's maximum concurrent users]<br /> <br /> ===What are the requirements for N users?===<br /> <br /> [http://moodle.org/mod/forum/discuss.php?d=111847 A moodle setup for 10K simultaneous users]<br /> <br /> ===How many users will my installation support?===<br /> <br /> This is another way of asking the same question as above. Please move up.<br /> <br /> ===Which operating system is the best?===<br /> <br /> ===What is the best webserver?===<br /> <br /> ===Should I go for 64 bit or is 32 bit OK?===<br /> <br /> ===What hosting provider do you recommend?===<br /> http://moodle.org/mod/forum/discuss.php?d=99405<br /> <br /> [[Category:FAQ]] I [[Category: Administrator]] I [[Category:Performance]]</div>

Jonspurs