Jiutao, welcome! If you have some ideas, you can go ahead to discuss your ideas in the mailing list and submit your patch for review. Thanks, xiaofeng On Tue, May 12, 2009 at 5:33 PM, Niejiutao wrote: > Hi all, > > I'm interested in compiler optimizations and have some thoughts on > improving the IR and optimizations of Jitrino.OPT.  However, it seems > that the development on Jitrino.OPT is not very active (only 617 lines > of changes of source code in the past five months), so I wonder whether > improving the optimizations of JIT compiler is important for Harmony > community.  If it's not, why? (Note that Harmony is not very competitive > to other JVMs on performance, http://www.stefankrause.net/wp/?p=9)  If > it is, are there any existing plans or any people working on this? > > Best Regards, > Jiutao > > > -- http://people.apache.org/~xli