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...en wrote: > Can you be more specific the algorithm for which you need type > metadata in a write barrier? No algorithms I am aware of perform any > tracing from a write barrier. > This one does: http://citeseer.ist.psu.edu/cache/papers/cs2/442/http:zSzzSzwww.cs.technion.ac.ilzSz~erezzSzPaperszSzms-sliding-views.pdf/an-on-the-fly.pdf > Write barriers are commonly used to record references from old- > generation objects to new-generation ones, either by recording the > referencing object, the referencing field, or using a card table. For > these purposes, the addresses are su...

...more specific the algorithm for which you need type >> metadata in a write barrier? No algorithms I am aware of perform >> any tracing from a write barrier. > > This one does: > > http://citeseer.ist.psu.edu/cache/papers/cs2/442/ > http:zSzzSzwww.cs.technion.ac.ilzSz~erezzSzPaperszSzms-sliding- > views.pdf/an-on-the-fly.pdf > >> Write barriers are commonly used to record references from old- >> generation objects to new-generation ones, either by recording the >> referencing object, the referencing field, or using a card table. >> For these pu...

On 2007-09-15, at 18:01, Talin wrote: > I'm still (slowly) working on the project of creating a concurrent > garbage collector that works with LLVM. I want to ask a little bit > more about object tags and write barriers and so on. > > Let's start with the assumption that a particular language does not > use per-object type tags. The code generator knows the types

I'm still (slowly) working on the project of creating a concurrent garbage collector that works with LLVM. I want to ask a little bit more about object tags and write barriers and so on. Let's start with the assumption that a particular language does not use per-object type tags. The code generator knows the types of all objects, however, and can pass along that type information to

...he algorithm for which you need type >>> metadata in a write barrier? No algorithms I am aware of perform any >>> tracing from a write barrier. >> >> This one does: >> >> http://citeseer.ist.psu.edu/cache/papers/cs2/442/http:zSzzSzwww.cs.technion.ac.ilzSz~erezzSzPaperszSzms-sliding-views.pdf/an-on-the-fly.pdf >> >> >>> Write barriers are commonly used to record references from >>> old-generation objects to new-generation ones, either by recording >>> the referencing object, the referencing field, or using a card >>>...