dagop: compute depth in revancestors() generator Surprisingly, this makes revset benchmark slightly faster. I don't know why, but it appears that wrapping -inputrev by tuple is the key. So I decided to just enable depth computation by default. # reverse(ancestors(tip)) using hg repo 1) 0.081051 2) 0.075408

dagop: just compare with the last value to deduplicate input of revancestors() Since we're using a max heap, the current rev should be a duplicate only if it equals to the previous one. We don't have to maintain the whole seen set. # reverse(ancestors(tip)) using hg repo 0) 0.086420 1) 0.081051