Garbage collector stopping my world for half a second

[Martin Egholm Nielsen]

Mark,

>>> The problem is that I have external hardware connected that "need" 
>>> being "triggered" from my application with more precision than ~400 
>>> ms. - more likely ~100 would be good.
>>
>> I never had the time to really look into it, but there is a fork of gcj
>> called jRate which adds support for most of the features required by the
>> RTSJ real-time specification. Maybe they provide some things that can be
>> helpful. http://jrate.sourceforge.net/
> 
> Looks interesting - thanks for pointing Mark...
> However, it seems there is a substantial amount of refactoring work for 
> me if I am to rewrite my code to use this API.
> And moreover it's not entirely clear what status the project is in with 
> respect to PPC and libgcj version - I'm polling them for more info wrtt...

Just to follow up on your, otherwise, excellent suggestion:
jRate does support ppc by now - the FAQ wasn't updated (it is now, though).

However, as the "project owner" (Morgan Deters) writes:

"jRate at present doesn't support GC of any sort, including the Boehm
collector standard in gcj, so that may be a concern for you as well.
There is considerable interest in adding real-time collectors to jRate
(and we want to reenable Boehm so that at least some GC is available).
Many of the projects where we've used jRate pre-allocate their storage
and/or use RTSJ scoped memory, so a lack of GC hasn't been a problem
for these apps."

So right now I'm hoping that I'll be able to post some info for HP and 
Aph, that may explain or hint me in a direction...

BR,
  Martin