diff --git a/headers/private/kernel/slab/Slab.h b/headers/private/kernel/slab/Slab.h
index a7586a87c0..e422b73246 100644
--- a/headers/private/kernel/slab/Slab.h
+++ b/headers/private/kernel/slab/Slab.h
@@ -52,6 +52,8 @@ void object_cache_free(object_cache *cache, void *object);
 status_t object_cache_reserve(object_cache *cache, size_t object_count,
 	uint32 flags);
 
+void object_cache_get_usage(object_cache *cache, size_t *_allocatedMemory);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/system/kernel/slab/Slab.cpp b/src/system/kernel/slab/Slab.cpp
index 4461cbd4f8..b86869ba9a 100644
--- a/src/system/kernel/slab/Slab.cpp
+++ b/src/system/kernel/slab/Slab.cpp
@@ -594,7 +594,7 @@ object_cache_init(object_cache *cache, const char *name, size_t objectSize,
 		cache->free_pages = area_free_pages;
 	}
 
-	register_low_resource_handler(object_cache_low_memory, cache, 
+	register_low_resource_handler(object_cache_low_memory, cache,
 		B_KERNEL_RESOURCE_PAGES | B_KERNEL_RESOURCE_MEMORY, 5);
 
 	MutexLocker _(sObjectCacheListLock);
@@ -904,6 +904,14 @@ object_cache_reserve(object_cache *cache, size_t objectCount, uint32 flags)
 }
 
 
+void
+object_cache_get_usage(object_cache *cache, size_t *_allocatedMemory)
+{
+	MutexLocker _(cache->lock);
+	*_allocatedMemory = cache->usage;
+}
+
+
 slab *
 object_cache::InitSlab(slab *slab, void *pages, size_t byteCount)
 {