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David Kastrup 7e6ac6e439 blame: large-scale performance rewrite 
The previous implementation used a single sorted linear list of blame
entries for organizing all partial or completed work.  Every subtask had
to scan the whole list, with most entries not being relevant to the
task.  The resulting run-time was quadratic to the number of separate
chunks.

This change gives every subtask its own data to work with.  Subtasks are
organized into "struct origin" chains hanging off particular commits.
Commits are organized into a priority queue, processing them in commit
date order in order to keep most of the work affecting a particular blob
collated even in the presence of an extensive merge history.

For large files with a diversified history, a speedup by a factor of 3
or more is not unusual.

Signed-off-by: David Kastrup <dak@gnu.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-28 14:38:15 -07:00
..
add.c Merge branch 'fr/add-interactive-argv-array' 2014-03-28 13:51:05 -07:00
annotate.c
apply.c Merge branch 'jl/nor-or-nand-and' 2014-04-08 12:00:28 -07:00
archive.c replace {pre,suf}fixcmp() with {starts,ends}_with() 2013-12-05 14:13:21 -08:00
bisect--helper.c Replace deprecated OPT_BOOLEAN by OPT_BOOL 2013-08-05 11:32:19 -07:00
blame.c blame: large-scale performance rewrite 2014-04-28 14:38:15 -07:00
branch.c use wildmatch() directly without fnmatch() wrapper 2014-02-20 14:15:46 -08:00
bundle.c
cat-file.c Merge branch 'jk/warn-on-object-refname-ambiguity' 2014-03-25 11:07:36 -07:00
check-attr.c Merge branch 'jc/check-attr-honor-working-tree' into maint 2014-03-18 14:03:03 -07:00
check-ignore.c Merge branch 'dw/check-ignore-sans-index' 2013-09-20 12:37:32 -07:00
check-mailmap.c builtin: add git-check-mailmap command 2013-07-13 10:19:37 -07:00
check-ref-format.c
checkout-index.c Merge branch 'nd/lift-path-max' 2013-10-30 12:10:56 -07:00
checkout.c Merge branch 'jl/nor-or-nand-and' 2014-04-08 12:00:28 -07:00
clean.c Merge branch 'jl/nor-or-nand-and' 2014-04-08 12:00:28 -07:00
clone.c commit: fix patch hunk editing with "commit -p -m" 2014-03-18 11:25:12 -07:00
column.c replace {pre,suf}fixcmp() with {starts,ends}_with() 2013-12-05 14:13:21 -08:00
commit-tree.c commit-tree: add and document --no-gpg-sign 2014-02-24 14:51:35 -08:00
commit.c Merge branch 'jl/nor-or-nand-and' 2014-04-08 12:00:28 -07:00
config.c config: teach "git config --file -" to read from the standard input 2014-02-18 16:12:14 -08:00
count-objects.c count-objects: add -H option to humanize sizes 2013-04-10 13:27:26 -07:00
credential.c
describe.c Merge branch 'nd/no-more-fnmatch' 2014-03-14 14:25:31 -07:00
diff-files.c convert read_cache_preload() to take struct pathspec 2013-07-15 10:56:08 -07:00
diff-index.c convert read_cache_preload() to take struct pathspec 2013-07-15 10:56:08 -07:00
diff-tree.c
diff.c Merge branch 'tg/diff-no-index-refactor' 2013-12-27 14:58:17 -08:00
fast-export.c Merge branch 'cc/starts-n-ends-with' 2013-12-17 12:02:44 -08:00
fetch-pack.c Merge branch 'nd/shallow-clone' 2014-01-17 12:21:20 -08:00
fetch.c Merge branch 'ep/varscope' 2014-02-27 14:01:30 -08:00
fmt-merge-msg.c replace {pre,suf}fixcmp() with {starts,ends}_with() 2013-12-05 14:13:21 -08:00
for-each-ref.c use wildmatch() directly without fnmatch() wrapper 2014-02-20 14:15:46 -08:00
fsck.c Merge branch 'mh/replace-refs-variable-rename' 2014-03-14 14:27:06 -07:00
gc.c Merge branch 'nd/gc-aggressive' 2014-04-03 12:38:47 -07:00
get-tar-commit-id.c stop installing git-tar-tree link 2013-12-03 12:35:22 -08:00
grep.c pathspec: convert some match_pathspec_depth() to dir_path_match() 2014-02-24 14:37:09 -08:00
hash-object.c hash-object: replace stdin parsing OPT_BOOLEAN by OPT_COUNTUP 2013-08-07 08:30:55 -07:00
help.c builtin/help.c: speed up is_git_command() by checking for builtin commands first 2014-01-06 11:26:31 -08:00
index-pack.c Merge branch 'nd/index-pack-error-message' 2014-03-25 11:08:19 -07:00
init-db.c i18n: only extract comments marked with "TRANSLATORS:" 2014-04-17 11:09:56 -07:00
log.c comments: fix misuses of "nor" 2014-03-31 15:29:27 -07:00
ls-files.c pathspec: pass directory indicator to match_pathspec_item() 2014-02-24 14:37:19 -08:00
ls-remote.c use wildmatch() directly without fnmatch() wrapper 2014-02-20 14:15:46 -08:00
ls-tree.c pathspec: rename match_pathspec_depth() to match_pathspec() 2014-02-24 14:37:14 -08:00
mailinfo.c replace {pre,suf}fixcmp() with {starts,ends}_with() 2013-12-05 14:13:21 -08:00
mailsplit.c mailsplit: sort maildir filenames more cleverly 2013-03-02 22:52:44 -08:00
merge-base.c Merge branch 'bm/merge-base-octopus-dedup' into maint 2014-02-13 13:38:59 -08:00
merge-file.c Replace deprecated OPT_BOOLEAN by OPT_BOOL 2013-08-05 11:32:19 -07:00
merge-index.c Convert "struct cache_entry *" to "const ..." wherever possible 2013-07-09 09:12:48 -07:00
merge-ours.c
merge-recursive.c replace {pre,suf}fixcmp() with {starts,ends}_with() 2013-12-05 14:13:21 -08:00
merge-tree.c merge-tree: handle directory/empty conflict correctly 2013-05-06 22:17:00 -07:00
merge.c Merge branch 'jc/rev-parse-argh-dashed-multi-words' 2014-04-08 11:59:27 -07:00
mktag.c
mktree.c builtin/mktree.c: use ALLOC_GROW() in append_to_tree() 2014-03-03 14:54:45 -08:00
mv.c Merge branch 'jk/mv-submodules-fix' 2014-03-25 11:02:02 -07:00
name-rev.c use wildmatch() directly without fnmatch() wrapper 2014-02-20 14:15:46 -08:00
notes.c parse-options: multi-word argh should use dash to separate words 2014-03-24 10:43:34 -07:00
pack-objects.c Merge branch 'jk/pack-bitmap' 2014-04-08 12:00:33 -07:00
pack-redundant.c
pack-refs.c pack-refs: merge code from pack-refs.{c,h} into refs.{c,h} 2013-05-01 15:33:11 -07:00
patch-id.c patch-id.c: use strbuf instead of a fixed buffer 2011-09-22 09:35:07 -07:00
prune-packed.c i18n: mark all progress lines for translation 2014-02-24 09:08:37 -08:00
prune.c Merge branch 'mh/replace-refs-variable-rename' 2014-03-14 14:27:06 -07:00
push.c Merge branch 'cc/starts-n-ends-with-endgame' 2014-03-07 15:18:28 -08:00
read-tree.c C: have space around && and || operators 2013-10-16 10:26:39 -07:00
receive-pack.c shallow: automatically clean up shallow tempfiles 2014-02-27 12:07:13 -08:00
reflog.c use wildmatch() directly without fnmatch() wrapper 2014-02-20 14:15:46 -08:00
remote-ext.c
remote-fd.c
remote.c Merge branch 'cc/starts-n-ends-with' 2013-12-17 12:02:44 -08:00
repack.c Merge branch 'jk/repack-pack-keep-objects' 2014-03-18 13:50:29 -07:00
replace.c Merge branch 'mh/replace-refs-variable-rename' 2014-03-14 14:27:06 -07:00
rerere.c rerere: convert to use parse_pathspec 2013-07-15 10:56:07 -07:00
reset.c Merge branch 'nd/reset-setup-worktree' 2014-03-14 14:25:03 -07:00
rev-list.c Merge branch 'jk/pack-bitmap' 2014-02-27 14:01:48 -08:00
rev-parse.c rev-parse --parseopt: option argument name hints 2014-03-23 17:28:03 -07:00
revert.c parse-options: multi-word argh should use dash to separate words 2014-03-24 10:43:34 -07:00
rm.c Merge branch 'nd/submodule-pathspec-ending-with-slash' 2014-02-27 14:01:15 -08:00
send-pack.c Merge branch 'nd/shallow-clone' 2014-01-17 12:21:20 -08:00
shortlog.c replace {pre,suf}fixcmp() with {starts,ends}_with() 2013-12-05 14:13:21 -08:00
show-branch.c use wildmatch() directly without fnmatch() wrapper 2014-02-20 14:15:46 -08:00
show-ref.c replace {pre,suf}fixcmp() with {starts,ends}_with() 2013-12-05 14:13:21 -08:00
stripspace.c builtin/stripspace.c: fix broken indentation 2013-09-06 13:33:17 -07:00
symbolic-ref.c replace {pre,suf}fixcmp() with {starts,ends}_with() 2013-12-05 14:13:21 -08:00
tag.c parse-options: multi-word argh should use dash to separate words 2014-03-24 10:43:34 -07:00
unpack-file.c
unpack-objects.c Merge branch 'mh/replace-refs-variable-rename' 2014-03-14 14:27:06 -07:00
update-index.c update-index: teach --cacheinfo a new syntax "mode,sha1,path" 2014-03-24 10:43:35 -07:00
update-ref.c update-ref: fail create operation over stdin if ref already exists 2014-04-02 10:40:43 -07:00
update-server-info.c
upload-archive.c replace {pre,suf}fixcmp() with {starts,ends}_with() 2013-12-05 14:13:21 -08:00
var.c
verify-pack.c
verify-tag.c gpg_interface: allow to request status return 2013-02-14 09:30:04 -08:00
write-tree.c