+1 to seeing a comparison to Boehm. I remember that being all the rage at the time, but then stopped hearing about it. I recall Boehm being a conservative collector, whereas Fil-C appears to be precise.

I already tried to compare to Boehm on a toy program, but Fil-C didn't seem to GC at all!

https://lobste.rs/s/q7b1gm/fil_s_unbelievable_garbage_collec...