Hotspot at Last

agree at carltonfields.com agree at carltonfields.com
Wed Apr 28 17:47:11 UTC 1999


That would be a facinating fact, if true, given the amount of real estate dedicated to dynamic optimization in the white paper.

-----Original Message-----
From:	MIME :tgriggs at keyww.com Sent:	Wednesday, April 28, 1999 12:36 PM
To:	squeak at cs.uiuc.edu
Subject:	Re: Hotspot at Last

"Andrew C. Greenberg" wrote:

> <snip>
> All kidding aside, it will be nice to see a serious, commercial
> dynamic optimization finally hit the decks.  Unsurprisingly, Sun is
> already downplaying expectations, suggesting that Hotspot will be
> more significant on the server side than the client side, at least on
> the first release.  (Quite true, since the server is likely to stay
> "warm" longer.)
>
> I did find the following bullet points in the white paper very
> amusing.  It appears that Sun has discovered that the following
> tricks, in addition to its admittedly way-cool dynamic profiling and
> adaptive optimizing, can lead to improved peformance in a VM:
> <snip>

It was my understanding (and this is a somewhat rumour driven
understanding) that the HotSpot VM, actually employs very little of the
"dynamic profiling and adaptive optimization" developed by the Sun Self
project and furthered by the Animorphic HotSpot work. That most of the
improvements in performance are of the more conventional sort. Maybe
others know more which would help dispel/validate this "rumour"?

--
Travis Griggs (a.k.a. Lord of the Fries)
Member, Fraven Skreiggs Software Collective
Key Technology
P-P-P-Penguin  Power!



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