From: Michael Neumann <mneumann@...>
Date: 2007-02-08T18:32:17+09:00
Subject: Re: TupleSpace performance (TupleBag really)

Eric Hodel wrote:

> On Feb 7, 2007, at 09:21, Mark Alexander Friedgan wrote:
> 
>> We've been struggling with this problem for months. We use
>> TupleSpace to
>> implement a distributed processing framework and periodically if
>> the number
>> of objects
>> in the TupleBag gets large (not ridiculous but 50,000 or so) the
>> TupleSpace
>> begins to take 100pct cpu and is effectively neutered and must be
>> restarted.
>> We've been trying to come up
>> with a better implementation of TupleBag but have not had much luck
>> so far.
>> Has anyone else done this?
> 
> I've heard a few people talk of it (mainly, TupleSpace with a
> persistence (database)), but to my knowledge nobody's done it.

I observed a similar behaviour (incredible slow down with lots of entries). My 
solution was to limit the number of entries to the TupleSpace by redesigning 
the application.

Regards,

  Michael