f20 - yum locally rebuilding deltas is so slow

Chris Murphy lists at colorremedies.com
Thu Dec 19 23:43:30 UTC 2013

On Dec 19, 2013, at 4:14 PM, T.C. Hollingsworth <tchollingsworth at gmail.com> wrote:

> On Thu, Dec 19, 2013 at a4:01 PM, Chris Murphy <lists at colorremedies.com> wrote:
>> Does anyone know exactly what's happening during the rebuild? I understand from light documentation how deltarpm works, what I'm not sure is if most of the time is spent reconstructing a virtual oldrpm from an installed rpm, or applying the delta, or writing out the new install?
> It reconstructs a real honest-to-God RPM file that must match the
> shasum/GPG sig of the old one exactly, lest it be thrown out.

That sounds time consuming. I bet that's the big hit.

Chris Murphy

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