[MERGE] bzrlib.trace.debug_memory() helper

[John Arbash Meinel]

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Andrew Bennetts wrote:
> Andrew Bennetts has voted approve.
> Status is now: Approved
> Comment:
> I wonder if perhaps we should leave the "if 'memory' in
> debug.debug_flags" check to the caller of debug_memory, just like we do
> elsewhere.  I'm happy for this to get merged, though.
> 

These aren't really cases that I would like to leave in production code.
I would even consider getting rid of the "if memory" for these
particular cases.

I just notice that "bzr branch bzr.dev" takes ~100MB of RAM, which seems
to all be in the index objects, but there didn't seem to be much I could
do to decrease it.

John
=:->

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