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Date: Thu, 27 Mar 2008 08:18:01 -0400
From: Joerg Heinicke <joerg.heinicke@gmx.de>
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Subject: Re: Javaflow - major memory issue
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On 27.03.2008 04:39, Torsten Curdt wrote:

>>> Sure, here is the hierarchy from bottom to top.  At this point, I ran 
>>> the test for about five
>>> minutes (running longer would increase the percentage) and the 
>>> retained size of the one
>>> ContinuationsManagerImpl object is 58% of the total.  The 
>>> BufferedOutputStream is 50% of the
>>> total, so the other 8% is consumed by the objects in between.
>>> org.apache.cocoon.util.BufferedOutputStream
>>> secureOutputStream of  
>>> org.apache.cocoon.environment.http.HttpEnvironment
>>> env of  
>>> org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor$TreeProcessorRedirector 
>>> redirector of  
>>> org.apache.cocoon.components.flow.java.ContinuationContext
>>
>> What I was so much concerned about here was the fact of storing the 
>> whole environment in the continuation, especially since we have this 
>> non-flushing BufferedOutputStream at the end. Is there any point in 
>> storing the environment? Do we get anything useful out of it after 
>> continueing the continuation?
> 
> What do you mean by "environment" ...it's not like the whole jvm is 
> stored but only the flow. External resources should be injected (vs 
> stored) as much as possible.

Just have a look at the quote from the original. It gives the object 
relationships in the memory. BufferedOutputStream takes 50% and is hold 
in HttpEnvironment which is hold in TreeProcessorRedirector which is 
hold in ContinuationContext. I wondered why it is there.

Joerg

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