[Zope] 2 zope faster 1 zope running

[Matthew T. Kromer]

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Try increasing the sys.setcheckinterval() value in z2.py (I think 
there's a flag you can pass to z2 but I forget which one it is).   The 
value should probably be your pystone rating/50, e.g. 5000 pystones = 
sys.setcheckinterval(100).  The default in z2 right now is 120, I think, 
which is too small for today's fastest CPUs.   An Athlon XP 2000+ (25000 
pystones) should have a sys.setcheckinterval(500).

Doing this will allow each python thread more time to dispatch before it 
does a lock shuffle.


On Monday, June 17, 2002, at 06:47 AM, Андрей Пучин wrote:

> Hello!
>
> I have tested ZOPE under heavy load (about 100-200 users 
> simultaneously) and noticed that
> 2 zope running on 1 PC works (processing requests) faster than 1.
>
> Zope runs under Windows XP with -t 10 options.
> Test were made with RationalRobot.
>
> What's wrong with my ZOPE installation??
> Is there any performance tune tricks??
>
> Thanks
> Andrew
>

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Try increasing the sys.setcheckinterval() value in z2.py (I think
there's a flag you can pass to z2 but I forget which one it is).   The
value should probably be your pystone rating/50, e.g. 5000 pystones =
sys.setcheckinterval(100).  The default in z2 right now is 120, I
think, which is too small for today's fastest CPUs.   An Athlon XP
2000+ (25000 pystones) should have a sys.setcheckinterval(500).


Doing this will allow each python thread more time to dispatch before
it does a lock shuffle.



On Monday, June 17, 2002, at 06:47 AM,
<fontfamily><param>Lucida Grande</param>Андрей</fontfamily>
<fontfamily><param>Lucida Grande</param>Пучин</fontfamily> wrote:


<excerpt>Hello!


I have tested ZOPE under heavy load (about 100-200 users
simultaneously) and noticed that

2 zope running on 1 PC works (processing requests) faster than 1.


Zope runs under Windows XP with -t 10 options.

Test were made with RationalRobot.


What's wrong with my ZOPE installation??

Is there any performance tune tricks??


Thanks

Andrew


</excerpt>
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