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| author | Nguyễn Thái Ngọc Duy <pclouds@gmail.com> | 2018-08-18 14:41:23 (GMT) |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2018-08-18 16:47:46 (GMT) |
| commit | 0d1ed5963da5d7410ad86eeaa64b3710e4aaa0c0 (patch) | |
| tree | 38f6b28d7ff13a061509bd1b093e47b1c1a6136c /unpack-trees.c | |
| parent | c46c406ae1ee30f64a13083edfa5683d2685fd61 (diff) | |
| download | git-0d1ed5963da5d7410ad86eeaa64b3710e4aaa0c0.zip git-0d1ed5963da5d7410ad86eeaa64b3710e4aaa0c0.tar.gz git-0d1ed5963da5d7410ad86eeaa64b3710e4aaa0c0.tar.bz2 | |
unpack-trees: add performance tracing
We're going to optimize unpack_trees() a bit in the following
patches. Let's add some tracing to measure how long it takes before
and after. This is the baseline ("git checkout -" on webkit.git, 275k
files on worktree)
performance: 0.056651714 s: read cache .git/index
performance: 0.183101080 s: preload index
performance: 0.008584433 s: refresh index
performance: 0.633767589 s: traverse_trees
performance: 0.340265448 s: check_updates
performance: 0.381884638 s: cache_tree_update
performance: 1.401562947 s: unpack_trees
performance: 0.338687914 s: write index, changed mask = 2e
performance: 0.411927922 s: traverse_trees
performance: 0.000023335 s: check_updates
performance: 0.423697246 s: unpack_trees
performance: 0.423708360 s: diff-index
performance: 2.559524127 s: git command: git checkout -
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'unpack-trees.c')
| -rw-r--r-- | unpack-trees.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/unpack-trees.c b/unpack-trees.c index f9efee08..6d9f692 100644 --- a/unpack-trees.c +++ b/unpack-trees.c @@ -345,6 +345,7 @@ static int check_updates(struct unpack_trees_options *o) struct checkout state = CHECKOUT_INIT; int i; + trace_performance_enter(); state.force = 1; state.quiet = 1; state.refresh_cache = 1; @@ -414,6 +415,7 @@ static int check_updates(struct unpack_trees_options *o) errs |= finish_delayed_checkout(&state); if (o->update) git_attr_set_direction(GIT_ATTR_CHECKIN, NULL); + trace_performance_leave("check_updates"); return errs != 0; } @@ -1285,6 +1287,7 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options if (len > MAX_UNPACK_TREES) die("unpack_trees takes at most %d trees", MAX_UNPACK_TREES); + trace_performance_enter(); memset(&el, 0, sizeof(el)); if (!core_apply_sparse_checkout || !o->update) o->skip_sparse_checkout = 1; @@ -1357,7 +1360,10 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options } } - if (traverse_trees(len, t, &info) < 0) + trace_performance_enter(); + ret = traverse_trees(len, t, &info); + trace_performance_leave("traverse_trees"); + if (ret < 0) goto return_failed; } @@ -1449,6 +1455,7 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options o->src_index = NULL; done: + trace_performance_leave("unpack_trees"); clear_exclude_list(&el); return ret; |