busy waiting vs sleep
这样做的好处是,它的实现较简单,并且如果不等太久它在性能上会表现很好,因为避免了切换到其他线程的开销。坏处也很明显:把CPUcycle浪费在执行无任何价值的东西上。,Busy-waitingitselfcanbemademuchlesswastefulbyusingadelayfunction(e.g.,sleep())foundinmost...
忙碌等待
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在軟體工程中,忙碌等待(也稱自旋;英語:Busywaiting、busy-looping、spinning)是一種以行程反覆檢查一個條件是否為真為根本的技術,條件可能為鍵盤輸入或某個鎖 ...
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