Simon, I've read your patch in https://issues.apache.org/jira/browse/HARMONY-6258. It looks good to me.
Please go continuing with your great work! Thanks, xiaofeng On Sun, Jul 5, 2009 at 6:02 PM, Simon Zhou<simon.harm...@gmail.com> wrote: > Hi, Xiaofeng, > Sorry for late replay, I just have moved to a new renting room recent days, > the network is just connected. > I think I have finished first 2 parts of this project. > DONE: > In step 0, I find the cause of problem of barrier generating, xiaoming helps > me on this issue and give a solution. > In step 1, I implemented 2 version of barrier for get() method, one is > simply using a JNI call to invoke a GC method. Another version is a vmmagic > version, my 'get() barrier' implementation just follows the approach of > implementing write barrier. > In step 2, I modified the concurrent marker to support weak reference > processing, markers threads will put the reference object to a > list according to its type. when the concurrent marking finishes, I use the > last marker thread to process soft/weak reference lists, concurrently > (Because this process do not impact the object referencing graph). > Now, I am thinking of a improving, need we make the weak/soft reference > processing parallel? > TODO: > In step 3, I will implement a STW phase for finalizable objects and phantom > reference processing. In this phase, gc thread will trace from the dead > objects in the list to resurrect all reachable objects from them. this phase > will change the object referencing graph, so it should be dealt in a STW > manner. > I am starting writing the formal mid-term status report today, is there > anything I should pay more attention to in this report? > Thank you! > Simon > Thanks > > 2009/7/2 Xiao-Feng Li <xiaofeng...@gmail.com> >> >> Simon, what's your progress? >> >> Thanks, >> xiaofeng >> >> -- >> http://people.apache.org/~xli > > > > -- > From : simon.z...@ppi, Fudan University > -- http://people.apache.org/~xli
