Re: [Zope] Fluctuation in response time

2005-05-19 Thread Dieter Maurer 
Pascal Peregrina wrote at 2005-5-19 17:23 +0200:
> ... 1 request per second ...
>The response time is 15 to 17ms... So far, perfect.
>
>-- BUT --
>
>Every 30 seconds, the response time (for one request) raises to 330ms (an
>then goes back to 15-17ms)
>
>Question : in Zope, is there something running in the background every 30
>seconds ?

No.

But the cyclic garbage collector might be activated from time to time
(based on the number of allocated objects).

>Could it be something related to the Zeo connections / cache ?

Very unlikely.

It could be invalidation message processing -- if someone
commits modifying transactions with a 30s period.

-- 
Dieter
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[Zope] Fluctuation in response time

2005-05-19 Thread Pascal Peregrina 
Hi all,

In a Zope + Zeo 2.7.6 installation, with no request hitting the Zope
instance, I have set up a script that does the same request every second.

The response time is 15 to 17ms... So far, perfect.

-- BUT --

Every 30 seconds, the response time (for one request) raises to 330ms (an
then goes back to 15-17ms)

Question : in Zope, is there something running in the background every 30
seconds ?

Could it be something related to the Zeo connections / cache ?

Thanks for your answers.

Pascal


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