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From Egor Pasko <egor.pa...@gmail.com>
Subject Re: [drlvm] A list of drlvm enhancements and limitations
Date Wed, 18 Oct 2006 06:50:02 GMT
On the 0x206 day of Apache Harmony Rana Dasgupta wrote:
> Egor,
>    I understand them as seperate and distinct optimizations, but we can do
> it however you, Mikhail would like to list them. The list also does not
> include more local optimizations that are bound to appear as a result of
> performance work.

I see, small items are not worth to mention.. right!

I see these 2 tasks as good candidates to list because they are:
* easily understood
* attractive to work on
  * kind of critical for performance today
  * not trivial, but not too complicated
  * can be done by 1 contributor in a reasonable amount of time

Mikhail, do you agree? are we listing them?

> > On 18 Oct 2006 11:31:09 +0700, Egor Pasko <egor.pasko@gmail.com> wrote:
> > >
> > > Rana,
> > >
> > > thank you for collecting it all together in one list!
> > >
> > > I think 2 more optimizations should find themselves in the list as
> > > separate items, because they are easily formulated and are a good
> > > chance for performance gains that Jitrino.OPT can offer:
> > > + "Type Value Profiling" in Jitrino.OPT - Implement profiling the most
> > > probable caller's type for virtual and interface calls. Integrate
> > > with Jitrino high-level devirtualizer and the "interface call
> > > devirtualization" item.
> > > + "Loop versioning" optimization in Jitrino.OPT - Implement versioning
> > > of hot loops to allow as little exceptions (especially bounds
> > > checks) as possible in these loops. Integrate with "ABCD
> > > improvements" item.
> > >
> > > Rana, Mikhail, do you like them as separate?
> > >
> > >

-- 
Egor Pasko, Intel Managed Runtime Division


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