map pointer 中文意思是什麼
map pointer
解釋
映象指示字-
Each time a pointer field in an object in the heap is modified, the corresponding bit in the card map for that card is set
每次修改堆中對象中的指針欄位時,就在卡片映射中設置對應那張卡片的相應位。 -
There are several costs to card marking additional space for the card map, additional work to be done on each pointer store, and additional work to be done at garbage collection time
卡片標記有幾項開銷卡片映射所需的額外空間、對每一個指針存儲所做的額外工作,以及在垃圾收集時做的額外工作。
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