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Don't sort ref_list too early

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get_ref_dir is called recursively for subdirectories, which means that
we were calling sort_ref_list for each directory of refs instead of
once for all the refs.  This is a massive wast of processing, so now
just call sort_ref_list on the result of the top-level get_ref_dir, so
that the sort is only done once.

In the common case of only a few different directories of refs the
difference isn't very noticable, but it becomes very noticeable when
you have a large number of direcotries containing refs (e.g. as
created by Gerrit).

Reported by Martin Fick.

Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Julian Phillips 2011-09-27 01:00:09 +01:00 committed by Junio C Hamano
parent 7ed863a85a
commit b4f223c636
1 changed files with 3 additions and 1 deletions
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4
refs.c
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@ -319,7 +319,7 @@ static struct ref_list *get_ref_dir(const char *submodule, const char *base,
free(ref);
closedir(dir);
}
return sort_ref_list(list);
return list;
}
struct warn_if_dangling_data {
@ -361,11 +361,13 @@ static struct ref_list *get_loose_refs(const char *submodule)
if (submodule) {
free_ref_list(submodule_refs.loose);
submodule_refs.loose = get_ref_dir(submodule, "refs", NULL);
submodule_refs.loose = sort_ref_list(submodule_refs.loose);
return submodule_refs.loose;
}
if (!cached_refs.did_loose) {
cached_refs.loose = get_ref_dir(NULL, "refs", NULL);
cached_refs.loose = sort_ref_list(cached_refs.loose);
cached_refs.did_loose = 1;
}
return cached_refs.loose;