[MERGE] Make bzr pack start optimising

Robert Collins robertc at robertcollins.net
Tue Dec 4 02:36:05 GMT 2007


This starts 'bzr pack' down the path of actually optimising layout. This
patch makes revisions be in reverse topological order, which gives
forward IO patterns for sequential reads.

I see a 30% decrease in 'time bzr log > /dev/null' with this patch.

-Rob
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