René Scharfe 66e2adb8f6 describe: use prio_queue ...

Replace the use a list-based priority queue whose order is maintained by
commit_list_insert_by_date() with a prio_queue.  This avoids quadratic
worst-case complexity.  And in the somewhat contrived example of
describing the 4751 commits from v2.41.0 to v2.47.0 in one go (to get a
sizable chunk of describe work with minimal ref loading overhead) it's
significantly faster:

Benchmark 1: ./git_2.50.1 describe $(git rev-list v2.41.0..v2.47.0)
  Time (mean ± σ):      1.558 s ±  0.002 s    [User: 1.492 s, System: 0.051 s]
  Range (min … max):    1.557 s …  1.562 s    10 runs

Benchmark 2: ./git describe $(git rev-list v2.41.0..v2.47.0)
  Time (mean ± σ):      1.209 s ±  0.006 s    [User: 1.143 s, System: 0.051 s]
  Range (min … max):    1.201 s …  1.219 s    10 runs

Summary
  ./git describe $(git rev-list v2.41.0..v2.47.0) ran
    1.29 ± 0.01 times faster than ./git_2.50.1 describe $(git rev-list v2.41.0..v2.47.0)

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

2025-08-03 09:13:27 -07:00

..

add.c

Merge branch 'ds/sparse-apply-add-p'

2025-05-27 13:59:09 -07:00

am.c

Merge branch 'rs/parse-options-precision'

2025-07-16 09:42:28 -07:00

annotate.c

Merge branch 'jc/a-commands-without-the-repo'

2024-10-25 14:02:36 -04:00

apply.c

builtin: use default hash when outside a repository

2025-07-01 14:58:24 -07:00

archive.c

archive: remove the_repository global variable

2024-10-11 09:37:18 -07:00

backfill.c

odb: rename has_object()

2025-07-01 14:46:38 -07:00

bisect.c

global: mark code units that generate warnings with -Wsign-compare

2024-12-06 20:20:02 +09:00

blame.c

odb: rename oid_object_info()

2025-07-01 14:46:37 -07:00

branch.c

Merge branch 'rs/ref-fitler-used-atoms-value-fix'

2025-01-29 14:05:09 -08:00

bugreport.c

object-file: move safe_create_leading_directories() into "path.c"

2025-04-15 08:24:35 -07:00

bundle.c

Merge branch 'jt/bundle-fsck'

2024-12-13 07:33:36 -08:00

cat-file.c

Merge branch 'ps/object-store'

2025-07-15 15:18:18 -07:00

check-attr.c

builtin: remove USE_THE_REPOSITORY_VARIABLE from builtin.h

2024-09-13 14:32:24 -07:00

check-ignore.c

builtin: remove USE_THE_REPOSITORY_VARIABLE from builtin.h

2024-09-13 14:32:24 -07:00

check-mailmap.c

mailmap: fix check-mailmap with full mailmap line

2025-02-21 18:27:16 -08:00

check-ref-format.c

builtin: send usage() help text to standard output

2025-01-17 13:30:03 -08:00

checkout--worker.c

builtins: send usage_with_options() help text to standard output

2025-01-17 13:30:03 -08:00

checkout-index.c

builtin/checkout-index: stop using the_repository

2025-03-07 16:52:02 -08:00

checkout.c

Merge branch 'ps/object-store'

2025-07-15 15:18:18 -07:00

clean.c

global: mark code units that generate warnings with -Wsign-compare

2024-12-06 20:20:02 +09:00

clone.c

odb: rename has_object()

2025-07-01 14:46:38 -07:00

column.c

parse-options: detect mismatches in integer signedness

2025-04-17 08:15:16 -07:00

commit-graph.c

Merge branch 'ps/object-store'

2025-07-15 15:18:18 -07:00

commit-tree.c

odb: get rid of the_repository in assert_oid_type()

2025-07-01 14:46:35 -07:00

commit.c

commit: avoid scanning trailing comments when 'core.commentChar' is "auto"

2025-07-16 08:25:17 -07:00

config.c

config: mention --url in the synopsis

2025-07-01 10:28:48 -07:00

count-objects.c

odb: get rid of the_repository in for_each() functions

2025-07-01 14:46:36 -07:00

credential-cache--daemon.c

object-file: move safe_create_leading_directories() into "path.c"

2025-04-15 08:24:35 -07:00

credential-cache.c

Merge branch 'rj/cygwin-exit'

2024-11-01 12:53:19 -04:00

credential-store.c

builtin: remove USE_THE_REPOSITORY_VARIABLE from builtin.h

2024-09-13 14:32:24 -07:00

credential.c

Merge branch 'jc/show-usage-help'

2025-01-28 13:02:22 -08:00

describe.c

describe: use prio_queue

2025-08-03 09:13:27 -07:00

diagnose.c

object-file: move safe_create_leading_directories() into "path.c"

2025-04-15 08:24:35 -07:00

diff-files.c

builtin: send usage() help text to standard output

2025-01-17 13:30:03 -08:00

diff-index.c

builtin: send usage() help text to standard output

2025-01-17 13:30:03 -08:00

diff-pairs.c

builtin/diff-pairs: allow explicit diff queue flush

2025-03-03 08:17:47 -08:00

diff-tree.c

builtin: send usage() help text to standard output

2025-01-17 13:30:03 -08:00

diff.c

Merge branch 'bc/use-sha256-by-default-in-3.0'

2025-07-21 09:14:25 -07:00

difftool.c

odb: rename repo_read_object_file()

2025-07-01 14:46:38 -07:00

fast-export.c

Merge branch 'cc/fast-import-export-signature-names'

2025-07-23 15:45:16 -07:00

fast-import.c

Merge branch 'cc/fast-import-export-signature-names'

2025-07-23 15:45:16 -07:00

fetch-pack.c

builtin/fetch-pack: cleanup before return error

2025-06-04 08:52:25 -07:00

fetch.c

Merge branch 'ph/fetch-prune-optim'

2025-07-16 09:42:27 -07:00

fmt-merge-msg.c

parse-options: introduce precision handling for OPTION_INTEGER

2025-04-17 08:15:15 -07:00

for-each-ref.c

builtin/for-each-ref: stop using the_repository

2025-03-07 16:52:02 -08:00

for-each-repo.c

global: trivial conversions to fix -Wsign-compare warnings

2024-12-06 20:20:04 +09:00

fsck.c

odb: rename has_object()

2025-07-01 14:46:38 -07:00

fsmonitor--daemon.c

builtins: send usage_with_options() help text to standard output

2025-01-17 13:30:03 -08:00

gc.c

Merge branch 'jk/unleak-reflog-expire-entry'

2025-08-01 11:27:11 -07:00

get-tar-commit-id.c

builtin: send usage() help text to standard output

2025-01-17 13:30:03 -08:00

grep.c

odb: rename read_object_with_reference()

2025-07-01 14:46:39 -07:00

hash-object.c

Merge branch 'bc/use-sha256-by-default-in-3.0'

2025-07-21 09:14:25 -07:00

help.c

pager: stop using the_repository

2024-12-18 10:44:30 -08:00

hook.c

builtin: pass repository to sub commands

2024-11-26 10:36:08 +09:00

index-pack.c

Merge branch 'bc/use-sha256-by-default-in-3.0'

2025-07-21 09:14:25 -07:00

init-db.c

Merge branch 'ps/parse-options-integers'

2025-04-24 17:25:34 -07:00

interpret-trailers.c

trailer: spread usage of "trailer_block" language

2024-10-14 12:33:02 -04:00

log.c

Merge branch 'jk/revision-no-early-output'

2025-08-01 11:27:11 -07:00

ls-files.c

odb: rename oid_object_info()

2025-07-01 14:46:37 -07:00

ls-remote.c

builtin: use default hash when outside a repository

2025-07-01 14:58:24 -07:00

ls-tree.c

odb: rename oid_object_info()

2025-07-01 14:46:37 -07:00

mailinfo.c

mailinfo: stop using the_repository

2024-12-18 10:44:31 -08:00

mailsplit.c

builtin: send usage() help text to standard output

2025-01-17 13:30:03 -08:00

merge-base.c

commit-reach: use size_t to track indices when computing merge bases

2024-12-27 08:12:40 -08:00

merge-file.c

object-store: rename files to "odb.{c,h}"

2025-07-01 14:46:34 -07:00

merge-index.c

builtin: send usage() help text to standard output

2025-01-17 13:30:03 -08:00

merge-ours.c

builtin: send usage() help text to standard output

2025-01-17 13:30:03 -08:00

merge-recursive.c

builtin/merge-recursive: switch to using merge_ort_generic()

2025-04-08 13:59:11 -07:00

merge-tree.c

odb: rename repo_read_object_file()

2025-07-01 14:46:38 -07:00

merge.c

merge/pull: extend merge.stat configuration variable to cover --compact-summary

2025-06-13 11:54:14 -07:00

mktag.c

Merge branch 'ps/object-store'

2025-07-15 15:18:18 -07:00

mktree.c

odb: rename oid_object_info()

2025-07-01 14:46:37 -07:00

multi-pack-index.c

object-store: rename files to "odb.{c,h}"

2025-07-01 14:46:34 -07:00

mv.c

Merge branch 'ps/mv-contradiction-fix'

2025-05-08 12:36:32 -07:00

name-rev.c

Merge branch 'ps/object-wo-the-repository'

2025-04-15 13:50:15 -07:00

notes.c

odb: rename repo_read_object_file()

2025-07-01 14:46:38 -07:00

pack-objects.c

Merge branch 'tb/midx-avoid-cruft-packs'

2025-07-21 09:14:26 -07:00

pack-redundant.c

Merge branch 'ps/object-store'

2025-07-15 15:18:18 -07:00

pack-refs.c

builtin/pack-refs: stop using the_repository

2025-03-07 16:52:01 -08:00

patch-id.c

builtin: use default hash when outside a repository

2025-07-01 14:58:24 -07:00

prune-packed.c

builtin: remove USE_THE_REPOSITORY for those without the_repository

2024-09-13 14:33:30 -07:00

prune.c

Merge branch 'ps/object-store'

2025-07-15 15:18:18 -07:00

pull.c

Merge branch 'ly/pull-autostash'

2025-08-01 11:27:14 -07:00

push.c

remote: rename query_refspecs functions

2025-02-04 09:51:41 -08:00

range-diff.c

Merge branch 'js/range-diff-diff-merges'

2024-12-23 09:32:17 -08:00

read-tree.c

global: use designated initializers for options

2025-04-17 08:15:15 -07:00

rebase.c

parse-options: add precision handling for OPTION_NEGBIT

2025-07-09 08:39:46 -07:00

receive-pack.c

Merge branch 'bc/use-sha256-by-default-in-3.0'

2025-07-21 09:14:25 -07:00

reflog.c

reflog: close leak of reflog expire entry

2025-07-22 16:34:11 -07:00

refs.c

Merge branch 'sj/ref-consistency-checks-more'

2025-03-26 16:26:10 +09:00

remote-ext.c

builtin: send usage() help text to standard output

2025-01-17 13:30:03 -08:00

remote-fd.c

builtin: send usage() help text to standard output

2025-01-17 13:30:03 -08:00

remote.c

Merge branch 'jk/remote-avoid-overlapping-names'

2025-07-21 09:14:26 -07:00

repack.c

Merge branch 'tb/midx-avoid-cruft-packs'

2025-07-21 09:14:26 -07:00

replace.c

odb: rename oid_object_info()

2025-07-01 14:46:37 -07:00

replay.c

repo_logmsg_reencode: fix memory leak when use repo_logmsg_reencode ()

2025-06-05 08:35:22 -07:00

rerere.c

rerere: let rerere_path() write paths into a caller-provided buffer

2025-02-28 13:54:11 -08:00

reset.c

reset: integrate sparse index with --patch

2025-05-16 12:02:47 -07:00

rev-list.c

Merge branch 'jc/do-not-scan-argv-without-parsing'

2025-08-01 11:27:11 -07:00

rev-parse.c

path: drop git_path() in favor of repo_git_path()

2025-02-28 13:54:11 -08:00

revert.c

Merge branch 'ps/parse-options-integers'

2025-04-24 17:25:34 -07:00

rm.c

rm: fix sign comparison warnings

2025-03-29 01:04:40 -07:00

send-pack.c

Merge branch 'jk/fix-leak-send-pack'

2025-07-07 14:12:57 -07:00

shortlog.c

Merge branch 'bc/use-sha256-by-default-in-3.0'

2025-07-21 09:14:25 -07:00

show-branch.c

Merge branch 'az/tighten-string-array-constness'

2025-04-29 14:21:28 -07:00

show-index.c

builtin: use default hash when outside a repository

2025-07-01 14:58:24 -07:00

show-ref.c

odb: rename has_object()

2025-07-01 14:46:38 -07:00

sparse-checkout.c

object-file: move safe_create_leading_directories() into "path.c"

2025-04-15 08:24:35 -07:00

stash.c

Merge branch 'bc/stash-export-import'

2025-06-30 14:30:31 -07:00

stripspace.c

builtin: remove USE_THE_REPOSITORY_VARIABLE from builtin.h

2024-09-13 14:32:24 -07:00

submodule--helper.c

Merge branch 'ps/object-store'

2025-07-15 15:18:18 -07:00

symbolic-ref.c

builtin: remove USE_THE_REPOSITORY_VARIABLE from builtin.h

2024-09-13 14:32:24 -07:00

tag.c

odb: rename repo_read_object_file()

2025-07-01 14:46:38 -07:00

unpack-file.c

odb: rename repo_read_object_file()

2025-07-01 14:46:38 -07:00

unpack-objects.c

odb: rename has_object()

2025-07-01 14:46:38 -07:00

update-index.c

parse-options: add precision handling for OPTION_SET_INT

2025-07-09 08:39:26 -07:00

update-ref.c

refs: add function to translate errors to strings

2025-05-19 11:06:31 -07:00

update-server-info.c

builtin/update-server-info: remove unnecessary if statement

2025-04-08 14:47:37 -07:00

upload-archive.c

builtin: send usage() help text to standard output

2025-01-17 13:30:03 -08:00

upload-pack.c

serve: stop using the_repository

2024-12-18 10:44:30 -08:00

var.c

Merge branch 'jc/show-usage-help'

2025-01-28 13:02:22 -08:00

verify-commit.c

builtin/verify-commit: stop using the_repository

2025-03-07 16:52:01 -08:00

verify-pack.c

builtin: remove USE_THE_REPOSITORY_VARIABLE from builtin.h

2024-09-13 14:32:24 -07:00

verify-tag.c

builtin/verify-tag: stop using the_repository

2025-03-07 16:52:01 -08:00

worktree.c

Merge branch 'ly/do-not-localize-bug-messages'

2025-06-17 10:44:40 -07:00

write-tree.c

parse-options: add precision handling for OPTION_BIT

2025-07-09 08:39:28 -07:00