cpu execution time

基本解釋

The task accounts for its time with the CPU by adding its execution time to the virtual runtime and is then inserted back into the tree if runnable.
任務(wù)通過將其運行時間添加到虛擬運行時，說明其占用 CPU 的時間，然后如果可運行，再插回到樹中。
The cost can be one of the following metrics: execution time per query execution, user CPU time per query execution, and system CPU time per query execution.
這里所說的成本可能是下面的度量之一：每次查詢執(zhí)行的執(zhí)行時間、每次查詢執(zhí)行的用戶 CPU 時間、以及每次查詢執(zhí)行的系統(tǒng) CPU 時間。
Experimental comparison with the previous work indicates that it accelerates the sampling speed in the large transaction databases which reduces CPU execution time, and possesses a good scalability.
通過實驗分析表明，該算法明顯地加快了大事務(wù)數(shù)據(jù)庫中采樣的速度，從而降低了CPU時間，而且具有很好的可擴展性。