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List:       velocity-user
Subject:    Re: threading : 'context switching' : optimal configuration
From:       James Maes <jmaes () sportingnews ! com>
Date:       2001-10-10 17:09:12
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Your answer does not address my question.

	In what I wrote I noted the conversation you mention.  I am not asking if 
Velocity if thread safe.  It does not apply to me as I will never share a 
context.  Each running thread will use its own context.  
	What I asked was if there was anything within the engine which would 
adversly effect my application.  Is there any performance benifit of having 
multible instances of velocity verses the singleton instance.  




On Wednesday 10 October 2001 10:55 am, you wrote:
> This has all been discussed on this list in the past. VelocityContext.java
> is not threadsafe. If your context is supposed to support interwoven
> threads of execution, you should pool the VelocityContext.
>
> > another resend.
> >
> >
> > Heres another one for you all.
> >
> > The sandbox I am building around Velocity will have to handle a
> > sizeable load upto ~6,500 rendering per hour.  During any given hour it
> > will be common for as many as 20 threads to be rendering at the same
> > time.  Is the singleton model of the engine suited for this via
> > multiple threads or should I commit a different instance of velocity
> > for each processing thread and have a pool of velocity's waiting.
> >
> > Also I am aware of the thread last week about which parts of velocity
> > are not thread safe.  That is not an issue here since each rendering
> > will have a unique context inited for it.
> >
> > Thanks again.
> >
> > -james
> >
> >
> >
> >
> >
> >
> >
> > --
> >
> > ------------------------------------
> >
> > || James Maes
> > || Senior Programmer
> > || jmaes@sportingnews.com
> > || The Sporting News
> > || www.sportingnews.com
> >
> > ------------------------------------
> >
> > "given enough time and resources we can accomplish anything"

-- 
 
------------------------------------
|| James Maes        
|| Senior Programmer 
|| jmaes@sportingnews.com 
|| The Sporting News     
|| www.sportingnews.com 
------------------------------------

"given enough time and resources we can accomplish anything"

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