Combining client and server VM - open request

Igor Veresov igor.veresov at oracle.com
Sun Jan 26 17:23:03 PST 2014


As with all problems that essentially reduce to the halting problem, with tiered compilation policy the only practical solution are heuristics, which means we are not going to solve all possible inputs optimally. 

This may give you more ideas about how tiered works: http://cr.openjdk.java.net/~iveresov/tiered/Tiered.pdf

igor

On Jan 25, 2014, at 8:24 AM, Stefan Reich <stefan.reich.maker.of.eye at googlemail.com> wrote:

> Hi again,
> 
> I'd like to turn this into an official request. I'm looking for someone
> with knowledge on who to handle this kind of stuff to come up with a
> combined super HotSpot VM:
> 
> -starts as fast as -client
> -after some time, optimizes as much as -server
> 
> It doesn't exist yet (TieredCompilation is not enough). But it should. And
> I believe it must be possible with a little tweaking of HotSpot internals.
> 
> :-)
> 
> Cheers,
> Stefan



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