global/git
1
0
Fork 0
mirror of https://github.com/git/git.git synced 2026-01-26 10:35:18 +00:00
Code Issues Packages Projects Releases Wiki Activity

name-hash: specify initial size for istate.dir_hash table

Browse Source 
Specify an initial size for the istate.dir_hash HashMap matching
the size of the istate.name_hash.

Previously hashmap_init() was given 0, causing a 64 bucket
hashmap to be created.  When working with very large
repositories, this would cause numerous rehash() calls to
realloc and rebalance the hashmap. This is especially true
when the worktree is deep, with many directories containing
a few files.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff Hostetler
2017-03-22 17:14:20 +00:00
committed by Johannes Schindelin
parent b213911f46
commit 18c0df5d2f
1 changed files with 2 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
name-hash.c
View File

@@ -120,7 +120,8 @@ static void lazy_init_name_hash(struct index_state *istate)
return;
hashmap_init(&istate->name_hash, (hashmap_cmp_fn) cache_entry_cmp,
istate->cache_nr);
hashmap_init(&istate->dir_hash, (hashmap_cmp_fn) dir_entry_cmp, 0);
hashmap_init(&istate->dir_hash, (hashmap_cmp_fn) dir_entry_cmp,
istate->cache_nr);
for (nr = 0; nr < istate->cache_nr; nr++)
hash_index_entry(istate, istate->cache[nr]);
istate->name_hash_initialized = 1;