[pmwiki-users] PmWiki scalebility questions (newbie)

Patrick R. Michaud pmichaud at pobox.com
Mon Aug 28 08:25:47 CDT 2006

On Mon, Aug 28, 2006 at 01:38:49PM +0200, Hsing-Foo Wang wrote:
> I am interested in knowing the 'scalebility' of PmWiki.
> I know PmWiki is flat-file based, so it comes down to filesystem en
> speed and all. So basically I have the following (nOOb) questions:
> 1. How many pages can PmWiki serve

It's really limited only by the available disk space and the
performance of the server.  However, to give an example of
how big a PmWiki server *can* get, the TAMU-CC Student Wiki
currently has over 200,000 pages running from a single wiki.

> 2. How is the speed/processing of PmWiki infuenced by the number of pages

More pages can slow things down if directories get too large.  
And some operating systems have a limit on the number of files
that can go into a single directory.

If the number of pages will be larger than about 10,000, it's a 
good idea to subdivide wiki.d/ into smaller directories, using the
http://www.pmwiki.org/wiki/Cookbook/PerGroupSubDirectories recipe.

> 3. How is the speed/processing of PmWiki influenced by the number of
> cookbook recipies

Depends on the recipes  -- the number of markup rules added,
the efficiency of the pattern rules, and how often they're used.

> 4. Based on a 'standard' server, is there a 'matrix' on how much load
> a server can handle?

Not as far as I know.  The important aspects are to have good
disk performance and a reasonable amount of memory allocated to
PHP for processing pages.

> 5. Are there any default of recipies that infulence the performance of
> a server significantly?

Again, I'm not aware of any at the momoent.  Usually when we find
a recipe that impacts performance in a negative way, it gets fixed
pretty quickly.

Hope this helps!


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