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| author | Nguyễn Thái Ngọc Duy <pclouds@gmail.com> | 2018-01-27 19:27:56 +0700 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2018-02-02 11:20:16 -0800 |
| commit | ca54d9baa4a8e73141d4c963245ee6f09dcc994d (patch) | |
| tree | d0418cefb4c51789cc338eed93c7b0933644d012 /diff-lib.c | |
| parent | 5be1f00a9a701532232f57958efab4be8c959a29 (diff) | |
| download | git-ca54d9baa4a8e73141d4c963245ee6f09dcc994d.tar.gz | |
trace: measure where the time is spent in the index-heavy operations
All the known heavy code blocks are measured (except object database
access). This should help identify if an optimization is effective or
not. An unoptimized git-status would give something like below:
0.001791141 s: read cache ...
0.004011363 s: preload index
0.000516161 s: refresh index
0.003139257 s: git command: ... 'status' '--porcelain=2'
0.006788129 s: diff-files
0.002090267 s: diff-index
0.001885735 s: initialize name hash
0.032013138 s: read directory
0.051781209 s: git command: './git' 'status'
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'diff-lib.c')
| -rw-r--r-- | diff-lib.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/diff-lib.c b/diff-lib.c index 8104603a3b..a228e1a219 100644 --- a/diff-lib.c +++ b/diff-lib.c @@ -92,6 +92,7 @@ int run_diff_files(struct rev_info *revs, unsigned int option) int diff_unmerged_stage = revs->max_count; unsigned ce_option = ((option & DIFF_RACY_IS_MODIFIED) ? CE_MATCH_RACY_IS_DIRTY : 0); + uint64_t start = getnanotime(); diff_set_mnemonic_prefix(&revs->diffopt, "i/", "w/"); @@ -246,6 +247,7 @@ int run_diff_files(struct rev_info *revs, unsigned int option) } diffcore_std(&revs->diffopt); diff_flush(&revs->diffopt); + trace_performance_since(start, "diff-files"); return 0; } @@ -512,6 +514,7 @@ static int diff_cache(struct rev_info *revs, int run_diff_index(struct rev_info *revs, int cached) { struct object_array_entry *ent; + uint64_t start = getnanotime(); ent = revs->pending.objects; if (diff_cache(revs, &ent->item->oid, ent->name, cached)) @@ -521,6 +524,7 @@ int run_diff_index(struct rev_info *revs, int cached) diffcore_fix_diff_index(&revs->diffopt); diffcore_std(&revs->diffopt); diff_flush(&revs->diffopt); + trace_performance_since(start, "diff-index"); return 0; } |