[Zope-dev] Zope reference counts

[seb bacon]

Stefan H. Holek wrote:
> No, the global interpreter lock will allow only one thread to run at any 
> time. Depending on your situation (when your Zope is cpu bound) 
> *decreasing* the number of threads may improve performance. Also make 
> sure you tune the checkinterval (pass the -i parameter to z2.py).

Hmm, I thought the GIL pertains only to SMP?

If you have only one thread and it blocks then you could end up with 
concurrency problems.

Sites with very many concurrent users or with threads which block may 
need more threads.

seb