shredder
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Refactor the collector to use reference counting
This is around a ~4x speedup, but required a lot of code changes.
In terms of public API, only AtomicGc has a significant diff.
(The old API would still work, but the changes make it work
more efficently with the new internals.)
@jrmuizel a 4x speedup on the stress test I use to benchmark the collector:
https://github.com/Others/shredder/blob/master/tests/stress.rs
On my machine it goes from ~12 to ~3 seconds.
This benchmark kinda blows, and I've had an issue to create new ones for a while (#7). But I'm pretty sure that this new design is significantly better on a number of axises anyway, as it removes the dumb parts of the collector where we keep a list of every Gc in the program.