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From "Geir Magnusson Jr." <ge...@apache.org>
Subject Re: [arch] Interpreter vs. JIT for Harmony VM
Date Tue, 08 Nov 2005 16:05:59 GMT

On Nov 8, 2005, at 10:20 AM, Steve Shih-wei Liao wrote:

> Harmony JVM needs to be designed to support non-reentrant JITs as a  
> default.
> It also needs to be designed to take advantage of reentrant JITs.  
> This is
> particularly important as the industry moves to multicore.

Is it possible to have some kind of core-affinity for the JIT?  So  
non-reentrant JITs could be used in multicore systems w/o a rewrite?

> To have clean, easy to maintain Execution Manager interfaces, there  
> needs to
> be well thought out JIT ABI to C/C++ ABIs. This will allow activation
> records from JIT code to interoperate with activation records from an
> interpreter written in C/C++.

What's an activation record?  (I'd ask "why do they need to  
interoperate", but I'll save that if your answer doesn't give me a  


Geir Magnusson Jr                                  +1-203-665-6437

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