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From: Taylor Blau <me@ttaylorr.com>
To: git@vger.kernel.org
Cc: dstolee@microsoft.com, gitster@pobox.com, peff@peff.net,
	szeder.dev@gmail.com
Subject: [PATCH 00/12] more miscellaneous Bloom filter improvements, redux
Date: Wed, 9 Sep 2020 11:22:33 -0400	[thread overview]
Message-ID: <cover.1599664389.git.me@ttaylorr.com> (raw)

Here is a rejiggered version of my series in [1], which accomplishes the
same without changing any of the on-disk commit-graph format.

As a reminder, the main goal of this series is to introduce a
'--max-new-filters' flag to 'git commit-graph write' to place a limit on
the number of new Bloom filters a writer is willing to compute from
scratch. The main difficulty is disambiguating between empty/too-large
filters and ones that haven't been computed yet. See "bloom: encode
out-of-bounds filters as non-empty" for the details.

The series is organized as follows:

  * Patches 1-4 are uninteresting preparatory steps.,
  * Patch 5 introduces the 'commitGraph.readChangedPaths' configuration.
  * Patches 6-8 are more preparation.
  * Patch 9 is from Stolee and fixes a bug where computing Bloom filters
    from scratch wouldn't stop at the limit of 512.
  * Patches 10-12 prepares for and then introduces '--max-new-filters'.

The first nine patches are basically unchanged from [1] where they were
thoroughly reviewed. The tenth patch is new, and the final two patches
are only touched up and simplified to work with this new approach, but
they have otherwise been reviewed.

Since the old thread was getting long, and this is a substantially new
approach, I'm sending this as "v1" of a new series, which hopefully
nobody minds.

[1]: https://lore.kernel.org/git/cover.1596480582.git.me@ttaylorr.com/

Derrick Stolee (1):
  bloom/diff: properly short-circuit on max_changes

Taylor Blau (11):
  commit-graph: introduce 'get_bloom_filter_settings()'
  t4216: use an '&&'-chain
  commit-graph: pass a 'struct repository *' in more places
  t/helper/test-read-graph.c: prepare repo settings
  commit-graph: respect 'commitGraph.readChangedPaths'
  commit-graph.c: store maximum changed paths
  bloom: split 'get_bloom_filter()' in two
  bloom: use provided 'struct bloom_filter_settings'
  bloom: encode out-of-bounds filters as non-empty
  commit-graph: rename 'split_commit_graph_opts'
  builtin/commit-graph.c: introduce '--max-new-filters=<n>'

 Documentation/config.txt                      |   2 +
 Documentation/config/commitgraph.txt          |   8 +
 Documentation/git-commit-graph.txt            |   6 +
 .../technical/commit-graph-format.txt         |   2 +-
 blame.c                                       |   8 +-
 bloom.c                                       |  53 +++--
 bloom.h                                       |  29 ++-
 builtin/commit-graph.c                        |  61 ++++--
 commit-graph.c                                | 148 ++++++++++----
 commit-graph.h                                |  17 +-
 diff.h                                        |   2 -
 fuzz-commit-graph.c                           |   5 +-
 line-log.c                                    |   2 +-
 repo-settings.c                               |   3 +
 repository.h                                  |   1 +
 revision.c                                    |   7 +-
 t/helper/test-bloom.c                         |   4 +-
 t/helper/test-read-graph.c                    |   3 +-
 t/t0095-bloom.sh                              |   4 +-
 t/t4216-log-bloom.sh                          | 181 ++++++++++++++++--
 t/t5324-split-commit-graph.sh                 |  13 ++
 tree-diff.c                                   |   5 +-
 22 files changed, 442 insertions(+), 122 deletions(-)
 create mode 100644 Documentation/config/commitgraph.txt

--
2.28.0.462.g4ff11cec37

             reply	other threads:[~2020-09-09 17:19 UTC|newest]

Thread overview: 75+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-09 15:22 Taylor Blau [this message]
2020-09-09 15:22 ` [PATCH 01/12] commit-graph: introduce 'get_bloom_filter_settings()' Taylor Blau
2020-09-09 15:22 ` [PATCH 02/12] t4216: use an '&&'-chain Taylor Blau
2020-09-09 15:22 ` [PATCH 03/12] commit-graph: pass a 'struct repository *' in more places Taylor Blau
2020-09-09 15:23 ` [PATCH 04/12] t/helper/test-read-graph.c: prepare repo settings Taylor Blau
2020-09-09 15:23 ` [PATCH 05/12] commit-graph: respect 'commitGraph.readChangedPaths' Taylor Blau
2020-09-09 15:23 ` [PATCH 06/12] commit-graph.c: store maximum changed paths Taylor Blau
2020-09-09 15:23 ` [PATCH 07/12] bloom: split 'get_bloom_filter()' in two Taylor Blau
2020-09-09 15:23 ` [PATCH 08/12] bloom: use provided 'struct bloom_filter_settings' Taylor Blau
2020-09-09 15:23 ` [PATCH 09/12] bloom/diff: properly short-circuit on max_changes Taylor Blau
2020-09-09 15:23 ` [PATCH 10/12] bloom: encode out-of-bounds filters as non-empty Taylor Blau
2020-09-10  3:35   ` Taylor Blau
2020-09-10 15:45     ` Taylor Blau
2020-09-11 18:15       ` Derrick Stolee
2020-09-09 15:23 ` [PATCH 11/12] commit-graph: rename 'split_commit_graph_opts' Taylor Blau
2020-09-09 15:24 ` [PATCH 12/12] builtin/commit-graph.c: introduce '--max-new-filters=<n>' Taylor Blau
2020-09-11 17:52   ` Jeff King
2020-09-11 18:59     ` Taylor Blau
2020-09-11 19:25       ` Taylor Blau
2020-09-14 20:12         ` Taylor Blau
2020-09-14 20:31           ` Derrick Stolee
2020-09-14 20:36             ` Taylor Blau
2020-09-15  0:59               ` Derrick Stolee
2020-09-15  4:31                 ` Taylor Blau
2020-09-15 21:49               ` Junio C Hamano
2020-09-15 21:53                 ` Taylor Blau
2020-09-11 19:47       ` Jeff King
2020-09-11 19:31     ` Junio C Hamano
2020-09-16 18:06 ` [PATCH v2 00/13] more miscellaneous Bloom filter improvements, redux Taylor Blau
2020-09-16 18:06   ` [PATCH v2 01/13] commit-graph: introduce 'get_bloom_filter_settings()' Taylor Blau
2020-09-16 18:07   ` [PATCH v2 02/13] t4216: use an '&&'-chain Taylor Blau
2020-09-16 18:07   ` [PATCH v2 03/13] commit-graph: pass a 'struct repository *' in more places Taylor Blau
2020-09-16 18:07   ` [PATCH v2 04/13] t/helper/test-read-graph.c: prepare repo settings Taylor Blau
2020-09-16 18:07   ` [PATCH v2 05/13] commit-graph: respect 'commitGraph.readChangedPaths' Taylor Blau
2020-09-16 18:07   ` [PATCH v2 06/13] commit-graph.c: store maximum changed paths Taylor Blau
2020-09-16 18:07   ` [PATCH v2 07/13] bloom: split 'get_bloom_filter()' in two Taylor Blau
2020-09-16 18:07   ` [PATCH v2 08/13] bloom: use provided 'struct bloom_filter_settings' Taylor Blau
2020-09-16 18:07   ` [PATCH v2 09/13] bloom/diff: properly short-circuit on max_changes Taylor Blau
2020-09-16 18:07   ` [PATCH v2 10/13] bloom: encode out-of-bounds filters as non-empty Taylor Blau
2020-09-17 22:13     ` SZEDER Gábor
2020-09-17 23:13       ` Taylor Blau
2020-09-18  0:52         ` Junio C Hamano
2020-09-18  1:15           ` Taylor Blau
2020-09-16 18:08   ` [PATCH v2 11/13] commit-graph: rename 'split_commit_graph_opts' Taylor Blau
2020-09-16 18:08   ` [PATCH v2 12/13] builtin/commit-graph.c: introduce '--max-new-filters=<n>' Taylor Blau
2020-09-18  9:23     ` SZEDER Gábor
2020-09-18 13:27       ` Taylor Blau
2020-09-16 18:08   ` [PATCH v2 13/13] commit-graph: introduce 'commitGraph.maxNewFilters' Taylor Blau
2020-09-16 22:51   ` [PATCH v2 00/13] more miscellaneous Bloom filter improvements, redux Derrick Stolee
2020-09-16 23:07     ` Junio C Hamano
2020-09-17  0:45       ` Taylor Blau
2020-09-17  0:59         ` Junio C Hamano
2020-09-17  1:10           ` Taylor Blau
2020-09-17 13:34             ` Taylor Blau
2020-09-17 13:38               ` Derrick Stolee
2020-09-18  2:58 ` [PATCH v3 " Taylor Blau
2020-09-18  2:58   ` [PATCH v3 01/13] commit-graph: introduce 'get_bloom_filter_settings()' Taylor Blau
2020-09-18  2:58   ` [PATCH v3 02/13] t4216: use an '&&'-chain Taylor Blau
2020-09-18  2:59   ` [PATCH v3 03/13] commit-graph: pass a 'struct repository *' in more places Taylor Blau
2020-09-18  2:59   ` [PATCH v3 04/13] t/helper/test-read-graph.c: prepare repo settings Taylor Blau
2020-09-18  2:59   ` [PATCH v3 05/13] commit-graph: respect 'commitGraph.readChangedPaths' Taylor Blau
2020-09-18  2:59   ` [PATCH v3 06/13] commit-graph.c: store maximum changed paths Taylor Blau
2020-09-18  2:59   ` [PATCH v3 07/13] bloom: split 'get_bloom_filter()' in two Taylor Blau
2020-09-18  2:59   ` [PATCH v3 08/13] bloom: use provided 'struct bloom_filter_settings' Taylor Blau
2020-09-18 16:27     ` SZEDER Gábor
2020-09-18 16:32       ` Taylor Blau
2020-09-18  2:59   ` [PATCH v3 09/13] bloom/diff: properly short-circuit on max_changes Taylor Blau
2020-09-18  2:59   ` [PATCH v3 10/13] bloom: encode out-of-bounds filters as non-empty Taylor Blau
2020-09-18  2:59   ` [PATCH v3 11/13] commit-graph: rename 'split_commit_graph_opts' Taylor Blau
2020-09-18  2:59   ` [PATCH v3 12/13] builtin/commit-graph.c: introduce '--max-new-filters=<n>' Taylor Blau
2020-09-18  2:59   ` [PATCH v3 13/13] commit-graph: introduce 'commitGraph.maxNewFilters' Taylor Blau
2020-09-18 13:29     ` Taylor Blau
2020-09-18 17:43       ` Junio C Hamano
2020-09-18 13:31   ` [PATCH v3 00/13] more miscellaneous Bloom filter improvements, redux Taylor Blau
2020-09-18 13:34     ` Taylor Blau

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