Toon Claes 8d9a7cdfda last-modified: use Bloom filters when available ... Our 'git last-modified' performs a revision walk, and computes a diff at each point in the walk to figure out whether a given revision changed any of the paths it considers interesting. When changed-path Bloom filters are available, we can avoid computing many such diffs. Before computing a diff, we first check if any of the remaining paths of interest were possibly changed at a given commit by consulting its Bloom filter. If any of them are, we are resigned to compute the diff. If none of those queries returned "maybe", we know that the given commit doesn't contain any changed paths which are interesting to us. So, we can avoid computing it in this case. Comparing the perf test results on git.git: Test HEAD~ HEAD ------------------------------------------------------------------------------------ 8020.1: top-level last-modified 4.49(4.34+0.11) 2.22(2.05+0.09) -50.6% 8020.2: top-level recursive last-modified 5.64(5.45+0.11) 5.62(5.30+0.11) -0.4% 8020.3: subdir last-modified 0.11(0.06+0.04) 0.07(0.03+0.04) -36.4% Based-on-patch-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Toon Claes <toon@iotcl.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>		2025-08-28 16:44:58 -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	…
apply.c	builtin: use default hash when outside a repository	2025-07-01 14:58:24 -07:00
archive.c	…
backfill.c	odb: rename `has_object()`	2025-07-01 14:46:38 -07:00
bisect.c	…
blame.c	odb: rename `oid_object_info()`	2025-07-01 14:46:37 -07:00
branch.c	…
bugreport.c	object-file: move `safe_create_leading_directories()` into "path.c"	2025-04-15 08:24:35 -07:00
bundle.c	…
cat-file.c	Merge branch 'ps/object-store'	2025-07-15 15:18:18 -07:00
check-attr.c	…
check-ignore.c	…
check-mailmap.c	…
check-ref-format.c	…
checkout--worker.c	…
checkout-index.c	…
checkout.c	Merge branch 'ps/object-store'	2025-07-15 15:18:18 -07:00
clean.c	…
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	…
credential-store.c	…
credential.c	…
describe.c	odb: rename `oid_object_info()`	2025-07-01 14:46:37 -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	…
diff-index.c	…
diff-pairs.c	…
diff-tree.c	…
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	…
for-each-repo.c	…
fsck.c	odb: rename `has_object()`	2025-07-01 14:46:38 -07:00
fsmonitor--daemon.c	…
gc.c	Merge branch 'ps/object-store'	2025-07-15 15:18:18 -07:00
get-tar-commit-id.c	…
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	…
hook.c	…
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	…
last-modified.c	last-modified: use Bloom filters when available	2025-08-28 16:44:58 -07:00
log.c	Merge branch 'ps/object-store'	2025-07-15 15:18:18 -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	…
mailsplit.c	…
merge-base.c	…
merge-file.c	object-store: rename files to "odb.{c,h}"	2025-07-01 14:46:34 -07:00
merge-index.c	…
merge-ours.c	…
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	…
patch-id.c	builtin: use default hash when outside a repository	2025-07-01 14:58:24 -07:00
prune-packed.c	…
prune.c	Merge branch 'ps/object-store'	2025-07-15 15:18:18 -07:00
pull.c	Merge branch 'jk/submodule-remote-lookup-cleanup'	2025-07-07 14:12:56 -07:00
push.c	…
range-diff.c	…
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	Merge branch 'ps/maintenance-reflog-expire'	2025-04-16 13:54:19 -07:00
refs.c	Merge branch 'sj/ref-consistency-checks-more'	2025-03-26 16:26:10 +09:00
remote-ext.c	…
remote-fd.c	…
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	…
reset.c	reset: integrate sparse index with --patch	2025-05-16 12:02:47 -07:00
rev-list.c	odb: rename `oid_object_info()`	2025-07-01 14:46:37 -07:00
rev-parse.c	…
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	…
submodule--helper.c	Merge branch 'ps/object-store'	2025-07-15 15:18:18 -07:00
symbolic-ref.c	…
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	…
upload-pack.c	…
var.c	…
verify-commit.c	…
verify-pack.c	…
verify-tag.c	…
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