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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2009-07-23 10:17:04 -0700
committerLibravatar Junio C Hamano <gitster@pobox.com>2009-07-23 21:56:00 -0700
commite6e4a47ba12bd19ed956251f191b1ea9915f61f8 (patch)
tree3447e53210d460cb62af2a8f13d5e8841e27bd05
parentdo_one_ref(): null_sha1 check is not about broken ref (diff)
downloadtgif-e6e4a47ba12bd19ed956251f191b1ea9915f61f8.tar.xz
git branch: fix performance problem
'git branch' looks at _all_ the refs, and verifies them. Which means that during cold-cache situations with a slow disk (and lots of tags, for example) it can take several very annoying seconds (7.5s according to a report by Carlos R. Mafra). This avoids most of it by simply doing the filtering before looking up the commits, by using the "raw" version of for_each_ref. Reported-by: Carlos R. Mafra <crmafra2@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--builtin-branch.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/builtin-branch.c b/builtin-branch.c
index 91098ca9b1..3784dda090 100644
--- a/builtin-branch.c
+++ b/builtin-branch.c
@@ -240,6 +240,10 @@ static int append_ref(const char *refname, const unsigned char *sha1, int flags,
if (ARRAY_SIZE(ref_kind) <= i)
return 0;
+ /* Don't add types the caller doesn't want */
+ if ((kind & ref_list->kinds) == 0)
+ return 0;
+
commit = lookup_commit_reference_gently(sha1, 1);
if (!commit)
return error("branch '%s' does not point at a commit", refname);
@@ -248,10 +252,6 @@ static int append_ref(const char *refname, const unsigned char *sha1, int flags,
if (!is_descendant_of(commit, ref_list->with_commit))
return 0;
- /* Don't add types the caller doesn't want */
- if ((kind & ref_list->kinds) == 0)
- return 0;
-
if (merge_filter != NO_FILTER)
add_pending_object(&ref_list->revs,
(struct object *)commit, refname);
@@ -426,7 +426,7 @@ static void print_ref_list(int kinds, int detached, int verbose, int abbrev, str
ref_list.with_commit = with_commit;
if (merge_filter != NO_FILTER)
init_revisions(&ref_list.revs, NULL);
- for_each_ref(append_ref, &ref_list);
+ for_each_rawref(append_ref, &ref_list);
if (merge_filter != NO_FILTER) {
struct commit *filter;
filter = lookup_commit_reference_gently(merge_filter_ref, 0);