Ravi, can you please add the link to the wiki as well.
thanks, dims On 5/14/05, Ravi kiran Gorrepati <[EMAIL PROTECTED]> wrote: > Check the design of Jikes at, > http://www.research.ibm.com/journal/sj/391/alpern.pdf > > Though the memory subsytem section is a little outdated, > that should not prevent you from understanding how it > works. > > -- > Ravi > > On Thu, 12 May 2005 10:30:12 -0600, <[EMAIL PROTECTED]> wrote: > > > > > On 12 May 2005, at 12:17, theUser BL wrote: > > > >> I hope you use C to write the VM for Harmony. > >> > > > > Forgive me if I am repeating what others have already said - I'm a bit > > late to this. > > > > Bootstrapping the whole thing in Java is a very clever idea, but what > > about the management of the heap (GC etc)? Presumably that would have to > > be done in some layered system, with a very simplistic GC in the > > bootstrap VM, with layers of extra logic on top of it? Or am I missing > > something? > > > > If so, what sort of performance hit would this have? I agree that in > > many ways it is a Good Thing, but so was Sun's handle redirection stuff > > (where an object reference referred to a table, that referred to the > > object) but Microsoft's Bad Way of simply linking to the object ran much > > quicker. In fact, didn't Sun eventually switch to that way of working? I > > think there was something about it in Simon Ritter's talk on GC at last > > year's London Java Tech days. > > > > I know very little about all this (so please beat me only with a very > > small stick and in a loving manner) but would it be possible to start > > with an existing(?) JVM written in C/C++ and then start to migrate it > > part by part into Java? Taking the baby steps approach, couldn't we work > > out exactly where the log-jams are likely to be? And then get as much as > > we can in Java, so long as it doesn't have a significant impact on > > performance? > > > > Would taking the C/C++ --> Java approach mean that we could base our > > discussions upon the evidence of the code, and less upon subjective > > belief? More ground up and less BUFD? > > > > DG > > -- Davanum Srinivas - http://webservices.apache.org/~dims/
