[Zope-dev] Zope reference counts

[Ivo van der Wijk]

On Wed, Jan 22, 2003 at 12:14:27PM +0000, seb bacon wrote:
> Toby Dickenson wrote:
> > On Wednesday 22 January 2003 11:43 am, Ivo van der Wijk wrote:
> > 
> >>>>Do these
> >>>>references point to the same object instances, or are these copied
> >>>>as well?
> >>>
> >>>They are independant copies
> 
> >> Is there a
> >>way to optimize this?
> > 
> > 
> > 1. Obviously, use fewer threads. Do you have a component that otherwise 
> > benefits from many threads? 
> 
> Also note that it is almost always a better use of memory to increase 
> the cache size than the number of threads (this is the size of each 
> cache, not the total cache size).
> 
> Are you aware of the "activity" and "cache parameters" tab in the 
> "database management" part of the control panel?
> 
> If not, you may not be using a 2.6x Zope - there are some significant 
> improvements in cache usage (especially under load) in these versions.
> 

I'm working on a 2.3.x instance which I have already upgraded to 2.4.4.

It soudns asif a further upgrde is reasonable. Also, the 'activity' tab
is new to me (looks interesting ;), and caching settins seem to be ignored
mostly until 2.6, right?

Cheers

	Ivo

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