Re: 2.18.0 Regression: packing performance and effectiveness

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On Thu, Jul 19, 2018 at 12:51 AM Elijah Newren <newren@xxxxxxxxx> wrote:
>
> I had a user report some poor behavior of 'git gc --aggressive' on a
> certain repo (which I sadly cannot share).  Turns out that on this
> repo, this operation takes about 60% longer and produces a pack
> roughly twice the expected size.

The intention was to make life better for weaker machines but
definitely should not slow down beefier ones, so yes this is
definitely a regression.

Is it possible to share "verify-pack -v <pack file>" output of the
pack produced by 2.17.0 and 2.18.0? The only sensitive info there is
sha-1, which you can replace with just "SHA-1" if you want. I'm more
interested in delta sizes and distribution.
-- 
Duy



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