[Zope] Zope performance and memory usage

[Pavlos Christoforou]

On Fri, 7 Apr 2000, John Morton wrote:

> Hung Jung Lu writes:
>  
> Most of that memory is actually shared between the threads, so the
> size of one thread is closer to your real memory usage.
>  
>  > Is this normal? Have there been any recent discussions on this
>  > topic?
>  > 
>  > (I am using Sybase, SQLSession and a bit of Gadfly.)
>  
> A lot of that memory usage will be cached objects, cached Sybase
> queries, and the Gadfly database, which is kept in memory. Try
> flushing Zope's cache and packing it after a restart to see what the
> 'base' memory usage should be. Everything else will be cache (unless
> there really is some hitherto unknown memory leak!).
> 

There must be. If one is lucky and the Zope process doesn't crash for a
long timeone will find that the process takes way more memory than (thread
number)xData.fs size. I have seen it with many Zope installations even
with very simple ones.

Pavlos