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Type: Bug
Resolution: Fixed
Priority: Blocker
Fix Version/s: 2.4
Affects Version/s: 2.0, 2.4
Component/s: Caching, Performance
Labels:

Affected Branches:
MOODLE_20_STABLE, MOODLE_24_STABLE
Fixed Branches:
MOODLE_24_STABLE
Pull from Repository:
git://github.com/samhemelryk/moodle.git
Pull Main Branch:
wip-~~MDL-25290~~-m24-combined
Pull Main Diff URL:
https://github.com/samhemelryk/moodle/compare/master...wip-MDL-25290-m24-combined
URL:
http://docs.moodle.org/dev/User:Sam_Hemelryk/MUC_proposal
Difficulty:
Difficult
Documentation link:
http://docs.moodle.org/en/Caching
Testing Instructions:

Hide

1. Set everythin up as default.
2. Run Moodle with very large numbers of users.
3. Verify that nothing is broken or slowed down compared to Moodle 2.3.
4. Realise that actual performance is going to vary depending on stage 2: ~~MDL-34224~~

Show
1. Set everythin up as default. 2. Run Moodle with very large numbers of users. 3. Verify that nothing is broken or slowed down compared to Moodle 2.3. 4. Realise that actual performance is going to vary depending on stage 2: MDL-34224

A single new caching system that can be applied whenever a developer writes code that could benefit from a cache. This consistency will give the admin more flexibility to configure Moodle to cope with very large loads by saving CPU and I/O.

The caching system allows the admin to choose from a variety of different backends, ranging from simple files to memcached and everything else.

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Cache_administration_20120830.png
310 kB
30/Aug/12 2:33 PM

blocks

MDL-34224 MUC Stage 2: Implement MUC in all the areas around Moodle that can benefit from it

Closed

caused a regression

MDL-47779 Review TODO with associated MDL's

Open

has a non-specific relationship to

MDL-25294 is_enrolled() result caching

Closed

has been marked as being related by

MDL-18314 Bulk upload user form costs 16,000 database queries with 165 users course/group enrolments

Closed

MDL-14357 Confirm if shared rcache (memcached, eacellerator) provide any real performance gain

Closed

MDL-28463 The condition_info class caches the user grade info too well

Closed

is a QA test written for

MDL-27120 Backup / Restore / Import performance optimisations

Closed

will help resolve

MDL-29831 Multiple occurrences of the editor on the same page cause excessive db queries

Closed

MDL-28961 Cache $CFG on disk

Closed

(1 has been marked as being related by, 1 is a QA test written for, 2 will help resolve)

Assignee:: Sam Hemelryk

Reporter:: Petr Skoda

Peer reviewer:: Rajesh Taneja

Integrator:: Eloy Lafuente (stronk7)

Tester:: CiBoT

Participants:: Adam Olley, akfoote, Aparup Banerjee, Dan Poltawski, Eloy Lafuente (stronk7), Helen Foster, James Cracknell, Marina Glancy, Mark Drechsler, Mark Nielsen, Mark van Hoek, Martin Dougiamas, Mary Cooch, Matt Sharpe, Nadav Kavalerchik, Petr Skoda, Rajesh Taneja, Sam Hemelryk, Sam Marshall, Tim Barker, Tim Hunt, Tony Levi

Votes:: 24 Vote for this issue

Watchers:: 32 Start watching this issue

Created:: 19/Nov/10 12:56 AM

Updated:: 28/Jul/18 1:16 AM

Resolved:: 19/Oct/12 5:25 AM

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