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authorAllan McRae <allan@archlinux.org>2011-01-29 11:47:31 +1000
committerAllan McRae <allan@archlinux.org>2011-02-04 09:55:45 +1000
commitc9820ec97b417d33dc37eb589f069766f1068ea1 (patch)
tree4cd5aa5216ddc5d25e294ce841b42b4e84ac95f7
parentd843c86b7b7cbf376716817e7c2c55b1f9360a72 (diff)
Slightly more efficient rehash size selection
While probably still not optimal in terms of everyday usage in pacman, this reduces the absolute size increase to "more reasonable" levels. For databases greater than 5000 in size, the minimum size increase is used which is still on the order of a 10% increase. Signed-off-by: Allan McRae <allan@archlinux.org>
-rw-r--r--lib/libalpm/pkghash.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/libalpm/pkghash.c b/lib/libalpm/pkghash.c
index 0324465f..8f7168d2 100644
--- a/lib/libalpm/pkghash.c
+++ b/lib/libalpm/pkghash.c
@@ -98,10 +98,12 @@ static pmpkghash_t *rehash(pmpkghash_t *oldhash)
* require a table size increase that large. */
if(oldhash->buckets < 500) {
newsize = oldhash->buckets * 2;
- } else if(oldhash->buckets < 3500) {
+ } else if(oldhash->buckets < 2000) {
newsize = oldhash->buckets * 3 / 2;
- } else {
+ } else if(oldhash->buckets < 5000) {
newsize = oldhash->buckets * 4 / 3;
+ } else {
+ newsize = oldhash->buckets + 1;
}
newhash = _alpm_pkghash_create(newsize);