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From: "Elijah Newren via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: Derrick Stolee <dstolee@microsoft.com>,
	Jonathan Tan <jonathantanmy@google.com>,
	Taylor Blau <me@ttaylorr.com>, Elijah Newren <newren@gmail.com>
Subject: [PATCH 0/5] Optimization batch 12: miscellaneous unthemed stuff
Date: Thu, 27 May 2021 08:37:16 +0000	[thread overview]
Message-ID: <pull.962.git.1622104642.gitgitgadget@gmail.com> (raw)

This series depends on en/ort-perf-batch-11 textually, but is semantically
independent of it.

This short series has a few optimizations, but only one of which affects the
testcases of interest (namely, reducing our time spent on sorting an array).
It also fixes a few comments.

For the testcases mentioned in commit 557ac0350d ("merge-ort: begin
performance work; instrument with trace2_region_* calls", 2020-10-28), the
changes in just this series improves the performance as follows:

                     Before Series           After Series
no-renames:        5.622 s ±  0.059 s     5.235 s ±  0.042 s
mega-renames:     10.127 s ±  0.073 s     9.419 s ±  0.107 s
just-one-mega:   500.3  ms ±  3.8  ms   480.1  ms ±  3.9  ms


As a reminder, before any merge-ort/diffcore-rename performance work, the
performance results we started with were:

no-renames-am:      6.940 s ±  0.485 s
no-renames:        18.912 s ±  0.174 s
mega-renames:    5964.031 s ± 10.459 s
just-one-mega:    149.583 s ±  0.751 s


Elijah Newren (5):
  merge-ort: replace string_list_df_name_compare with faster alternative
  diffcore-rename: avoid unnecessary strdup'ing in break_idx
  diffcore-rename: enable limiting rename detection to relevant
    destinations
  Fix various issues found in comments
  merge-ort: miscellaneous touch-ups

 diffcore-rename.c                   | 52 ++++++++++++++++---
 diffcore.h                          |  2 +
 merge-ort.c                         | 78 +++++++++++++++++++----------
 t/t6423-merge-rename-directories.sh |  2 +-
 4 files changed, 99 insertions(+), 35 deletions(-)


base-commit: 76e253793c9a1d7fdd1836d5e4db26dabd3d713a
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-962%2Fnewren%2Fort-perf-batch-12-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-962/newren/ort-perf-batch-12-v1
Pull-Request: https://github.com/gitgitgadget/git/pull/962
-- 
gitgitgadget

             reply	other threads:[~2021-05-27  8:37 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-27  8:37 Elijah Newren via GitGitGadget [this message]
2021-05-27  8:37 ` [PATCH 1/5] merge-ort: replace string_list_df_name_compare with faster alternative Elijah Newren via GitGitGadget
2021-05-27 21:00   ` René Scharfe
2021-05-27 22:47     ` Elijah Newren
2021-05-28 16:12       ` René Scharfe
2021-05-28 18:09         ` Elijah Newren
2021-05-28  1:32   ` Taylor Blau
2021-05-28  4:10     ` Elijah Newren
2021-05-27  8:37 ` [PATCH 2/5] diffcore-rename: avoid unnecessary strdup'ing in break_idx Elijah Newren via GitGitGadget
2021-05-27  8:37 ` [PATCH 3/5] diffcore-rename: enable limiting rename detection to relevant destinations Elijah Newren via GitGitGadget
2021-05-27  8:37 ` [PATCH 4/5] Fix various issues found in comments Elijah Newren via GitGitGadget
2021-05-27  8:37 ` [PATCH 5/5] merge-ort: miscellaneous touch-ups Elijah Newren via GitGitGadget
2021-06-01 14:58 ` [PATCH v2 0/5] Optimization batch 12: miscellaneous unthemed stuff Elijah Newren via GitGitGadget
2021-06-01 14:58   ` [PATCH v2 1/5] merge-ort: replace string_list_df_name_compare with faster alternative Elijah Newren via GitGitGadget
2021-06-02 11:29     ` Derrick Stolee
2021-06-01 14:58   ` [PATCH v2 2/5] diffcore-rename: avoid unnecessary strdup'ing in break_idx Elijah Newren via GitGitGadget
2021-06-01 14:58   ` [PATCH v2 3/5] diffcore-rename: enable limiting rename detection to relevant destinations Elijah Newren via GitGitGadget
2021-06-03 12:54     ` Derrick Stolee
2021-06-03 14:13       ` Elijah Newren
2021-06-01 14:58   ` [PATCH v2 4/5] Fix various issues found in comments Elijah Newren via GitGitGadget
2021-06-01 14:58   ` [PATCH v2 5/5] merge-ort: miscellaneous touch-ups Elijah Newren via GitGitGadget
2021-06-03 12:55   ` [PATCH v2 0/5] Optimization batch 12: miscellaneous unthemed stuff Derrick Stolee
2021-06-04  4:39   ` [PATCH v3 0/4] " Elijah Newren via GitGitGadget
2021-06-04  4:39     ` [PATCH v3 1/4] merge-ort: replace string_list_df_name_compare with faster alternative Elijah Newren via GitGitGadget
2021-06-04  4:39     ` [PATCH v3 2/4] diffcore-rename: avoid unnecessary strdup'ing in break_idx Elijah Newren via GitGitGadget
2021-06-04  4:39     ` [PATCH v3 3/4] Fix various issues found in comments Elijah Newren via GitGitGadget
2021-06-04  4:39     ` [PATCH v3 4/4] merge-ort: miscellaneous touch-ups Elijah Newren via GitGitGadget
2021-06-04 13:11     ` [PATCH v3 0/4] Optimization batch 12: miscellaneous unthemed stuff Derrick Stolee
2021-06-04 15:48       ` Elijah Newren
2021-06-04 16:30         ` Elijah Newren
2021-06-04 16:35         ` Jeff King
2021-06-04 18:42           ` Derrick Stolee
2021-06-04 19:43             ` Elijah Newren
2021-06-04 19:53             ` Jeff King
2021-06-08 16:11     ` [PATCH v4 " Elijah Newren via GitGitGadget
2021-06-08 16:11       ` [PATCH v4 1/4] merge-ort: replace string_list_df_name_compare with faster alternative Elijah Newren via GitGitGadget
2021-06-08 16:11       ` [PATCH v4 2/4] diffcore-rename: avoid unnecessary strdup'ing in break_idx Elijah Newren via GitGitGadget
2021-06-08 16:11       ` [PATCH v4 3/4] Fix various issues found in comments Elijah Newren via GitGitGadget
2021-06-08 16:11       ` [PATCH v4 4/4] merge-ort: miscellaneous touch-ups Elijah Newren via GitGitGadget

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