Mailinglist Archive: opensuse-wiki (177 mails)

[Marcus Rueckert <darix@xxxxxxxxx>]

On 2010-08-17 11:14:03 -0600, Matthew Ehle wrote:
> > APC Caching can show a major improvement in MediaWikis... at least 4x.
> > If APC is not turned on, it probably should be.
>
> APC opcode caching was added for all the openSUSE blogs and wikis back
> in November, and it has been a major improvement.  I shudder to think
> of how the new wiki would run without it.
>  
> However, this does bring up another point.  Right now, we cache
> variables with memcached.  We could switch variable caching to APC,
> which is arguably faster.  This would most likely be a very minor
> improvement, but it is a possibility.

I highly doubt that apc cache is much faster than memcached.

In a proper config you got one memcached per webserver, and configure
all memcacheds in the wiki.

a) you got shared storage, no matter on which webserver you get the
request. I would assume that the APC is local to the machine.

b) you can scale to much more cache with memcached than with APC.

c) memcached is fast enough for wikipedia and even facebook (although
they use it with udp in the mean time)

    darix

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