[drupal-devel] performance improvements - avoiding big unserialize()

[Gerhard Killesreiter]

On Tue, 25 Oct 2005, Moshe Weitzman wrote:

> Dries Buytaert wrote:
> > The problem, however, is multi-server setups like drupal.org.  How  does
> > one maintain consistent caches across different servers (unless  you use
> > a distributed cache like memcached or ... a database cache  like we do
> > now)?
> >
>
> Indeed. Anyone have a suggestion for how a site can discover if it is a
> member of a multi-site host?

If we cannot find a better idea we might set a global variable in
settings.php.

> > if (multi-server setup) {
> >   1. use memcached or
> >   2. use a shared database cache or
> >   3. invent a cache-coherency protocol?
> > }
> > else if (APC) {
> >   4. use APC
> > }
>
> i can't think of a better approach than this one. unfortunately we have
> to introduce a bit of complexity to properly address the problem.

Ideally this would be handled by the cache API.

Cheers,
	Gerhard