unsafe-merge-queue is still quite slow compared to committing to Subversion directly. It should be sped up as much as possible for when we're trying to land build fix, update test expectation, etc...
How much time it took (approx) when you noticed?
(In reply to Aakash Jain from comment #1) > How much time it took (approx) when you noticed? Seems to take a few minutes.
<rdar://problem/97533374>