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From: Stefan Beller <sbeller@google.com>
To: Jeff King <peff@peff.net>
Cc: git <git@vger.kernel.org>
Subject: Re: [PATCH 5/6] pack-bitmap: save "have" bitmap from walk
Date: Fri, 17 Aug 2018 15:39:29 -0700	[thread overview]
Message-ID: <CAGZ79kaP3GPZi_5vSCspgbim5VwsTMRa-fLYbjgECqsx9BTaeg@mail.gmail.com> (raw)
In-Reply-To: <20180817205920.GE20088@sigill.intra.peff.net>

> diff --git a/pack-bitmap.h b/pack-bitmap.h
> index 4555907dee..02a60ce670 100644
> --- a/pack-bitmap.h
> +++ b/pack-bitmap.h
> @@ -50,6 +50,13 @@ int rebuild_existing_bitmaps(struct bitmap_index *, struct packing_data *mapping
>                              khash_sha1 *reused_bitmaps, int show_progress);
>  void free_bitmap_index(struct bitmap_index *);
>
> +/*
> + * After a traversal has been performed on the bitmap_index, this can be
> + * queried to see if a particular object was reachable from any of the
> + * objects flagged as UNINTERESTING.

If the traversal has not been performed, we pretend the
object was not reachable?

Is this a good API design, as it can be used when you do not
have done all preparations? similarly to prepare_bitmap_walk
we could have

    if (!bitmap_git->result)
        BUG("failed to perform bitmap walk before querying");

> +int bitmap_has_sha1_in_uninteresting(struct bitmap_index *, const unsigned char *sha1);

You seem to have rebased it to master resolving conflicts only. ;-)
Do we want to talk about object ids here instead?

(This is what I get to think about when reviewing this series
"bottom up". I use "git log -w -p master..HEAD" after applying
the patches, probably I should also use --reverse, such that I
get to see the commit message before the code for each commit
and yet only need to scroll in one direction.)

  reply	other threads:[~2018-08-17 22:39 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-17 20:54 [PATCH 0/6] reuse on-disk deltas for fetches with bitmaps Jeff King
2018-08-17 20:55 ` [PATCH 1/6] t/perf: factor boilerplate out of test_perf Jeff King
2018-08-17 20:55 ` [PATCH 2/6] t/perf: factor out percent calculations Jeff King
2018-08-17 20:56 ` [PATCH 3/6] t/perf: add infrastructure for measuring sizes Jeff King
2018-08-17 20:57 ` [PATCH 4/6] t/perf: add perf tests for fetches from a bitmapped server Jeff King
2018-08-17 20:59 ` [PATCH 5/6] pack-bitmap: save "have" bitmap from walk Jeff King
2018-08-17 22:39   ` Stefan Beller [this message]
2018-08-17 22:45     ` Jeff King
2018-08-17 21:06 ` [PATCH 6/6] pack-objects: reuse on-disk deltas for thin "have" objects Jeff King
2018-08-17 22:57   ` Stefan Beller
2018-08-17 23:32     ` Jeff King
2018-08-20 21:03   ` Junio C Hamano
2018-08-20 21:42     ` Jeff King
2018-08-21 19:06 ` [PATCH v2 0/6] reuse on-disk deltas for fetches with bitmaps Jeff King
2018-08-21 19:08   ` Jeff King
2018-08-21 19:34   ` Junio C Hamano
2018-08-21 19:51     ` Jeff King
  -- strict thread matches above, loose matches on Subject: below --
2018-08-21 18:41 [PATCH] test-tool.h: include git-compat-util.h Jeff King
2018-08-21 19:07 ` [PATCH 5/6] pack-bitmap: save "have" bitmap from walk Jeff King
2018-08-21 19:47   ` Derrick Stolee
2018-08-21 19:54     ` Jeff King
2018-08-31 15:23   ` Ævar Arnfjörð Bjarmason
2018-08-31 22:55     ` Jeff King
2014-03-26  7:22 [PATCH/RFC 0/6] reuse deltas found by bitmaps Jeff King
2014-03-26  7:23 ` [PATCH 5/6] pack-bitmap: save "have" bitmap from walk Jeff King

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