[RFC] Out of memory during BzrDir.find_branches

[Aaron Bentley]

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Andrew Bennetts wrote:
> Aaron Bentley wrote:
> A lazy iterator is better regardless of the memory bug, because it starts giving
> results much faster.

But again, this is sidestepping a bug; transport operations on the local
filesystem are much, much slower than they ought to be.

"find" in my bzr repo completes in 0.240s.  "bzr branches" completes in
2.637s.  That's with hot cache for both commands.

Aaron
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