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authorNguyễn Thái Ngọc Duy <pclouds@gmail.com>2018-08-18 16:41:22 +0200
committerJunio C Hamano <gitster@pobox.com>2018-08-18 09:47:46 -0700
commitc46c406ae1ee30f64a13083edfa5683d2685fd61 (patch)
tree5e632617017349a94b5357aaad6bf2a52c64032a /dir.c
parentfa03cdc39b951d1cfbfd690fe6f3ac6c57ab6a44 (diff)
downloadgit-c46c406ae1ee30f64a13083edfa5683d2685fd61.tar.gz
trace.h: support nested performance tracing
Performance measurements are listed right now as a flat list, which is fine when we measure big blocks. But when we start adding more and more measurements, some of them could be just part of a bigger measurement and a flat list gives a wrong impression that they are executed at the same level instead of nested. Add trace_performance_enter() and trace_performance_leave() to allow indent these nested measurements. For now it does not help much because the only nested thing is (lazy) name hash initialization (e.g. called in diff-index from "git status"). This will help more because I'm going to add some more tracing that's actually nested. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'dir.c')
-rw-r--r--dir.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/dir.c b/dir.c
index 32f5f72759..18b57b94cc 100644
--- a/dir.c
+++ b/dir.c
@@ -2263,10 +2263,13 @@ int read_directory(struct dir_struct *dir, struct index_state *istate,
const char *path, int len, const struct pathspec *pathspec)
{
struct untracked_cache_dir *untracked;
- uint64_t start = getnanotime();
- if (has_symlink_leading_path(path, len))
+ trace_performance_enter();
+
+ if (has_symlink_leading_path(path, len)) {
+ trace_performance_leave("read directory %.*s", len, path);
return dir->nr;
+ }
untracked = validate_untracked_cache(dir, len, pathspec);
if (!untracked)
@@ -2302,7 +2305,7 @@ int read_directory(struct dir_struct *dir, struct index_state *istate,
dir->nr = i;
}
- trace_performance_since(start, "read directory %.*s", len, path);
+ trace_performance_leave("read directory %.*s", len, path);
if (dir->untracked) {
static int force_untracked_cache = -1;
static struct trace_key trace_untracked_stats = TRACE_KEY_INIT(UNTRACKED_STATS);