diff options
| author | Ben Peart <benpeart@microsoft.com> | 2018-10-29 23:41:59 +0300 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2018-10-30 05:28:39 +0300 |
| commit | 99ce720c338ebeb37331bd98f724569837c74d0d (patch) | |
| tree | ce7d8197078f0ab98d9e599d2ef46a167e35dd17 /read-cache.c | |
| parent | c670b1f876521c9f7cd40184bf7ed05aad843433 (diff) | |
speed up refresh_index() by utilizing preload_index()
Speed up refresh_index() by utilizing preload_index() to do most of the work
spread across multiple threads. This works because most cache entries will
get marked CE_UPTODATE so that refresh_cache_ent() can bail out early when
called from within refresh_index().
On a Windows repo with ~200K files, this drops refresh times from 6.64
seconds to 2.87 seconds for a savings of 57%.
Signed-off-by: Ben Peart <benpeart@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'read-cache.c')
| -rw-r--r-- | read-cache.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/read-cache.c b/read-cache.c index d57958233e..53733d651d 100644 --- a/read-cache.c +++ b/read-cache.c @@ -1496,6 +1496,12 @@ int refresh_index(struct index_state *istate, unsigned int flags, typechange_fmt = (in_porcelain ? "T\t%s\n" : "%s needs update\n"); added_fmt = (in_porcelain ? "A\t%s\n" : "%s needs update\n"); unmerged_fmt = (in_porcelain ? "U\t%s\n" : "%s: needs merge\n"); + /* + * Use the multi-threaded preload_index() to refresh most of the + * cache entries quickly then in the single threaded loop below, + * we only have to do the special cases that are left. + */ + preload_index(istate, pathspec, 0); for (i = 0; i < istate->cache_nr; i++) { struct cache_entry *ce, *new_entry; int cache_errno = 0; |