diff options
| author | Jeff Hostetler <jeffhost@microsoft.com> | 2017-02-10 18:10:39 +0300 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2017-02-11 01:44:18 +0300 |
| commit | e596acc23a8c92784349da613502626d758215b2 (patch) | |
| tree | 1e4fb0e5beb5d2a89e9c027d7c30ca1c4250a97f /preload-index.c | |
| parent | 3b9e3c2cede15057af3ff8076c45ad5f33829436 (diff) | |
preload-index: avoid lstat for skip-worktree items
Teach preload-index to avoid lstat() calls for index-entries
with skip-worktree bit set. This is a performance optimization.
During a sparse-checkout, the skip-worktree bit is set on items
that were not populated and therefore are not present in the
worktree. The per-thread preload-index loop performs a series
of tests on each index-entry as it attempts to compare the
worktree version with the index and mark them up-to-date.
This patch short-cuts that work.
On a Windows 10 system with a very large repo (450MB index)
and various levels of sparseness, performance was improved
in the {preloadindex=true, fscache=false} case by 80% and
in the {preloadindex=true, fscache=true} case by 20% for various
commands.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'preload-index.c')
| -rw-r--r-- | preload-index.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/preload-index.c b/preload-index.c index c1fe3a3ef9..70a4c80878 100644 --- a/preload-index.c +++ b/preload-index.c @@ -53,6 +53,8 @@ static void *preload_thread(void *_data) continue; if (ce_uptodate(ce)) continue; + if (ce_skip_worktree(ce)) + continue; if (!ce_path_match(ce, &p->pathspec, NULL)) continue; if (threaded_has_symlink_leading_path(&cache, ce->name, ce_namelen(ce))) |