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Re: Future of DTR?


On Wed, 2005-02-02 at 17:16 -0800, Hien Nguyen wrote:
> Hi folks,
> 
> I looked into the DTR tool last week, and played with it little bit. It 
> is COOL. I thought we could use it as the framework for systemtap. But 
> obviously that is not the case. 

This is something I wanted to talk about at the meeting Thursday.

I wrote DTR very quickly.  It was really a proof-of-concept and tool for
testing and exploring.  I am not enhancing it further, but it will be
replaced with something better.

> Frank's architecture paper talks about 
> developing a new language (similar to Sun's D language).

The new language will probably be similar to what DTR implemented.  DTR
just implemented a very small subset.

> So my question is what is the future of DTR? Do we really need a new 
> language compiler/parser for systemtap? or the just improving what we 
> have in DTR is enough?

At the 27 Jan meeting I proposed that we plan to release a new prototype
soon based on jprobes.  This would have a real parser, new runtime
library, and use providers.  I am currently working on the runtime and I
have other pieces almost ready too. Will is working on providers.  Frank
on the language. We need to decide on some language details and someone
(probably me) will need to write the translator and pull it all
together.  

I figure we could have something better than DTR in 2-3 weeks. It would
still implement only a small subset of the language, but would be a
decent framework to build on.

Martin








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