Preset the object's color, or alignment, to maximize superpage usage.

MFC after: 5 days
int0dh · Feb 13, 2015 · c8abad0 · c8abad0
1 parent 217bb22
commit c8abad0
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/sys/kern/sysv_shm.c b/sys/kern/sysv_shm.c
@@ -706,9 +706,10 @@ shmget_allocate_segment(td, uap, mode)
 #endif
 		return (ENOMEM);
 	}
+	shm_object->pg_color = 0;
 	VM_OBJECT_WLOCK(shm_object);
 	vm_object_clear_flag(shm_object, OBJ_ONEMAPPING);
-	vm_object_set_flag(shm_object, OBJ_NOSPLIT);
+	vm_object_set_flag(shm_object, OBJ_COLORED | OBJ_NOSPLIT);
 	VM_OBJECT_WUNLOCK(shm_object);
 
 	shmseg->object = shm_object;