--- old/src/hotspot/share/gc/shared/gcVMOperations.cpp 2020-07-29 15:26:44.795931268 +0800 +++ new/src/hotspot/share/gc/shared/gcVMOperations.cpp 2020-07-29 15:26:44.503931258 +0800 @@ -150,7 +150,7 @@ } } HeapInspection inspect; - inspect.heap_inspection(_out); + inspect.heap_inspection(_out, _parallel_thread_num); }