Enable free lists for multi-value mapping used in all multi-value attributes.

This should reduce the need for compaction which is CPU intensive for some applications.

2 files changed, 4 insertions, 0 deletions

diff --git a/vespalib/src/vespa/vespalib/datastore/array_store.h b/vespalib/src/vespa/vespalib/datastore/array_store.h
index d9d5afcbd43..d5fef404a43 100644
--- a/vespalib/src/vespa/vespalib/datastore/array_store.h
+++ b/vespalib/src/vespa/vespalib/datastore/array_store.h
@@ -101,6 +101,8 @@ public:
     // Should only be used for unit testing
     const BufferState &bufferState(EntryRef ref) const;
 
+    bool has_free_lists_enabled() const { return _store.has_free_lists_enabled(); }
+
     static ArrayStoreConfig optimizedConfigForHugePage(size_t maxSmallArraySize,
                                                        size_t hugePageSize,
                                                        size_t smallPageSize,
diff --git a/vespalib/src/vespa/vespalib/datastore/datastorebase.h b/vespalib/src/vespa/vespalib/datastore/datastorebase.h
index 59e0d76b638..22b1a53f0ab 100644
--- a/vespalib/src/vespa/vespalib/datastore/datastorebase.h
+++ b/vespalib/src/vespa/vespalib/datastore/datastorebase.h
@@ -316,6 +316,8 @@ public:
     void disableFreeList(uint32_t bufferId);
     void disableElemHoldList();
 
+    bool has_free_lists_enabled() const { return _freeListsEnabled; }
+
     /**
      * Returns the free list for the given type id.
      */