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| author |  Derrick Stolee <dstolee@microsoft.com> | 2018-10-03 10:12:19 -0700 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2018-10-07 08:25:05 +0900 |
| commit | 53c36670e7f21342fb6017f39e0c91362e50dfe0 (patch) | |
| tree | eeb88bd278089d942ca142a518fd4ba2c187f926 | |
| parent | builtin/commit-graph.c: UNLEAK variables (diff) | |
| download | tgif-53c36670e7f21342fb6017f39e0c91362e50dfe0.tar.xz | |
commit-graph: reduce initial oid allocation
While writing a commit-graph file, we store the full list of
commits in a flat list. We use this list for sorting and ensuring
we are closed under reachability.
The initial allocation assumed that (at most) one in four objects
is a commit. This is a dramatic over-count for many repos,
especially large ones. Since we grow the repo dynamically, reduce
this count by a factor of eight. We still set it to a minimum of
1024 before allocating.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rw-r--r-- | commit-graph.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/commit-graph.c b/commit-graph.c index ceca6026b0..e773703e1d 100644 --- a/commit-graph.c +++ b/commit-graph.c @@ -720,7 +720,7 @@ void write_commit_graph(const char *obj_dir, struct progress *progress = NULL; oids.nr = 0; - oids.alloc = approximate_object_count() / 4; + oids.alloc = approximate_object_count() / 32; oids.progress = NULL; oids.progress_done = 0; |