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Re: [PATCH/RFC 0/6] reuse deltas found by bitmaps

From
Junio C Hamano <gitster@pobox.com>
Date
Mar 26, 2014, 17:33 UTC
Message-ID
<xmqq7g7gkgp6.fsf@gitster.dls.corp.google.com>
In-Reply-To
<20140326072215.GA31739@sigill.intra.peff.net>
Jeff King <peff@peff.net> writes:
Show 7 quoted lines
>   2. When considering whether a delta can be reused, check the bitmaps
>      to see if the client has the base. If so, allow reuse.
> ...
> The implementation I'm including here is the one I've shown before,
> which does (2). Part of the reason that I'm reposting it before looking
> further into these options is that I've written a t/perf script that can
> help with the analysis.

Conceptually, that feels like a natural extension for the "thin pack" transfer. I wouldn't foresee a correctness issue, as long as the fetcher runs "index-pack --fix-thin" at their end.

Previous: Eric SunshineNext: Jeff King
Message 10 of 17 in “reuse deltas found by bitmaps”
  1. 0/6 reuse deltas found by bitmapsJeff King, Mar 26, 2014
  2. 1/6 t/perf-lib: factor boilerplate out of test_perfJeff King, Mar 26, 2014
  3. Junio C HamanoMar 26, 2014
  4. 2/6 t/perf/aggregate: factor our percent calculationsJeff King, Mar 26, 2014
  5. 3/6 t/perf: add infrastructure for measuring sizesJeff King, Mar 26, 2014
  6. 4/6 t/perf: add perf tests for fetches from a bitmapped serverJeff King, Mar 26, 2014
  7. 5/6 pack-bitmap: save "have" bitmap from walkJeff King, Mar 26, 2014
  8. 6/6 pack-objects: reuse deltas for thin "have" objectsJeff King, Mar 26, 2014
  9. Eric SunshineMar 28, 2014
  10. Junio C HamanoMar 26, 2014
  11. Jeff KingMar 26, 2014
  12. Junio C HamanoMar 26, 2014
  13. Jeff KingMar 26, 2014
  14. Jeff KingMar 27, 2014
  15. Junio C HamanoMar 27, 2014
  16. Siddharth AgarwalMar 26, 2014
  17. Siddharth AgarwalMar 27, 2014

Read the whole thread, see it on lore, or plain text.

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