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| author | Carlos Martín Nieto <cmn@dwim.me> | 2014-05-08 17:14:59 +0200 |
|---|---|---|
| committer | Carlos Martín Nieto <cmn@dwim.me> | 2014-05-09 09:40:29 +0200 |
| commit | b2559f477a3f8e2bc76140ca2c76d8cc30b5f5da (patch) | |
| tree | a3ba6ed2cc4ed75f9411767555d71139dd8793f1 | |
| parent | e6d10c58b547181fe19f6bacff6bd0dee9f67b9b (diff) | |
| download | libgit2-b2559f477a3f8e2bc76140ca2c76d8cc30b5f5da.tar.gz | |
pack: preallocate a 64-element chain
Dependency chains are often large and require a few
reallocations. Allocate a 64-element chain before doing anything else to
avoid allocations during the loop.
This value comes from the stack-allocated one git uses. We still
allocate this on the heap, but it does help performance a little bit.
| -rw-r--r-- | src/pack.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/pack.c b/src/pack.c index a8577d389..664e8efb0 100644 --- a/src/pack.c +++ b/src/pack.c @@ -1236,6 +1236,7 @@ static int pack_dependency_chain(git_dependency_chain *chain_out, struct git_pac if (!p->bases.entries && (cache_init(&p->bases) < 0)) return -1; + git_array_init_to_size(chain, 64); while (!found_base && error == 0) { struct pack_chain_elem *elem; git_pack_cache_entry *cached = NULL; |