a dump creates a record of every object in the heap, how much memory it's using, and which objects are referencing it. 系統轉儲為堆中的每個對象創建一條記錄,記錄對象使用的內存量,哪些對象正在引用該對象。
In elder days}, debugging was generally done by groveling over a dump (see grovel}); increasing use of high - level languages and interactive debuggers has made such tedium uncommon, and the term dump now has a faintly archaic flavor.