From: Junio C Hamano Date: Mon, 29 Aug 2011 21:33:23 GMT Subject: [PATCH 3/3] diff-index: pass pathspec down to unpack-trees machinery Message-ID: <1314653603-7533-4-git-send-email-gitster@pobox.com> In-Reply-To: <1314653603-7533-1-git-send-email-gitster@pobox.com> And finally, pass the pathspec down through unpack_trees() to traverse_trees() callchain. Before and after applying this series, looking for changes in the kernel repository with a fairly narrow pathspec gets a moderate speeds up. (without patch) $ /usr/bin/time git diff --raw v2.6.27 -- net/ipv6 >/dev/null 0.48user 0.05system 0:00.53elapsed 100%CPU (0avgtext+0avgdata 163296maxresident)k 0inputs+952outputs (0major+11163minor)pagefaults 0swaps (with patch) $ /usr/bin/time git diff --raw v2.6.27 -- net/ipv6 >/dev/null 0.01user 0.00system 0:00.02elapsed 104%CPU (0avgtext+0avgdata 43856maxresident)k 0inputs+24outputs (0major+3688minor)pagefaults 0swaps Signed-off-by: Junio C Hamano --- diff-lib.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/diff-lib.c b/diff-lib.c index f8454dd..ebe751e 100644 --- a/diff-lib.c +++ b/diff-lib.c @@ -468,6 +468,7 @@ static int diff_cache(struct rev_info *revs, opts.unpack_data = revs; opts.src_index = &the_index; opts.dst_index = NULL; + opts.pathspec = &revs->diffopt.pathspec; init_tree_desc(&t, tree->buffer, tree->size); return unpack_trees(1, &t, &opts); -- 1.7.7.rc0.70.g82660