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  • CiviCRM Community Forums (archive) »
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  • Scalability (Moderator: Donald Lobo) »
  • When to use memcache
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Author Topic: When to use memcache  (Read 4280 times)

Coleman Watts

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When to use memcache
April 14, 2012, 03:45:17 pm
I understand that enabling memcache can improve Civi's performance in some circumstances.
I'm unclear about what those circumstances are. Is there a certain db size threshold below which it does not make sense to use it?
I'm currently working on a site with only 10k contacts and 1 gig of ram on a VPS. Is this too small to bother with memcache?
Are there any circumstances in which memcache will degrade performance?
What are the recommended cache settings?
« Last Edit: April 14, 2012, 03:49:50 pm by colemanw »
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Eileen

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Re: When to use memcache
April 14, 2012, 11:24:14 pm
Hey Coleman - if you don't get answers here I'm told lcdweb or koumbit are good people to ask
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CiviTeacher.com

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Re: When to use memcache
April 16, 2012, 04:09:31 pm
I have enabled memcache on a server, and then 'flipped the switch' to CiviCRM memcache = 1 only once.  The experience was without obvious error, but also without obvious noticeable improvement. 

The environment was a 2GB Debian dual-core dedicated server - quite fast.

I do see things that I wonder 'is that because of memcache?' on occasion such as newly created tags not showing up on Contact tag tabs, or in Drupal Views for an hour or more.  I do not know if these are memcache related or not.    This is my limited experience.


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Erik Hommel

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Re: When to use memcache
April 16, 2012, 10:59:07 pm
Our host has used Memcache on our site, and there was definitely an improvement performancewise. Unfortunately it also meant that our site kept flipping back to English whilst it should be in Dutch. So we posted on the forum and switched off Memcache....
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xavier

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Re: When to use memcache
April 17, 2012, 01:25:49 am
@Erik,

Mathieu has worked to use native gettext instead of a php version.

This should improve things. Would be great if you could test for nl

http://issues.civicrm.org/jira/browse/CRM-9976

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Donald Lobo

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Re: When to use memcache
April 17, 2012, 07:46:17 am

Erik:

we should fix the multi-lingual memcache issue. Wanna ping me on IRC and we can get a debugging and fixing session going

lobo
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Erik Hommel

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Re: When to use memcache
April 17, 2012, 07:59:27 am
lobo: no because it is way over my head  and i will not know what I am talking about :) What I will do though is get our hosting guy to contact you on IRC.
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Erik Hommel

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Re: When to use memcache
April 18, 2012, 02:51:26 am
Lobo, we (techie Bas and me) will ping you on IRC at 16.00 (our time) today....
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  • CiviCRM Community Forums (archive) »
  • Old sections (read-only, deprecated) »
  • Developer Discussion »
  • Scalability (Moderator: Donald Lobo) »
  • When to use memcache

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