Reserve a large hashmap to reduce number of collisions.

1 files changed, 1 insertions, 1 deletions

diff --git a/searchlib/src/vespa/searchlib/attribute/enumattribute.hpp b/searchlib/src/vespa/searchlib/attribute/enumattribute.hpp
index 6a5777b5696..527b869431d 100644
--- a/searchlib/src/vespa/searchlib/attribute/enumattribute.hpp
+++ b/searchlib/src/vespa/searchlib/attribute/enumattribute.hpp
@@ -104,7 +104,7 @@ EnumAttribute<B>::insertNewUniqueValues(EnumStoreBase::IndexVector & newIndexes)
             this->_enumStore.getPendingCompact()) {
             this->removeAllOldGenerations();
             this->_enumStore.clearPendingCompact();
-            EnumIndexMap old2New(this->_enumStore.getNumUniques());
+            EnumIndexMap old2New(this->_enumStore.getNumUniques()*3);
             if (!this->_enumStore.performCompaction(extraBytesNeeded, old2New)) {
                 // fallback to resize strategy
                 this->_enumStore.fallbackResize(extraBytesNeeded);