Re: [PATCH 4/6] introduce a commit metapack

On Wed, Jan 30, 2013 at 8:56 PM, Duy Nguyen [off-list ref] wrote:

However, performance seems to suffer too. Maybe I do more lookups than
necessary, I don't know.

Yes, I should have stored the position in the sha-1 <-> offset map
instead of the position of the object in .pack file. Even so,
performance does not improve.

I should probably measure the cost of revindex separately.

And the cost of create_pack_revindex() is 0.6 sec :-(

Perhaps we could store abbrev sha-1 instead of full sha-1. Nice
space/time trade-off.
-- 
Duy