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Sleeping相对于Busy Waiting的好处是，内核可以在等待期间去执行有意义的事情。坏处则是它的开销：维护一个链表，让你自己去睡眠，上下文切换到一个新的进程（再加上切换回 ...

In the Linux world, kernel busy-waits are usually referred to as spinlocks. Prev , Up, Next. burst page , Home, buzz.

2017年6月26日 — 關於udelay & mdelay, 就是busy waiting方式. driver常常會需要很短且精準的delay(n microsecond/millisecond)，以完成sync。 此時用jiffies就不 ...

busy-waiting, · busy-looping or · spinning is a technique in which a process repeatedly checks to see if a condition is true, such as whether keyboard input or a ...

2021年3月14日 — Suppose a process is waiting for a lock held by some other process. Either it spinlocks (Busy waits) or it goes to sleep, to be woken up ...

2011年10月1日 — Busy loop is loop that never blocks and continuously checks some condition. Small sleep is good enough to avoid 100% cpu usage. The best way to ...

2017年3月13日 — 使用legacy timer (計算jiffies) · 實作為busy waiting (所以很耗資源, 大量使用會造成效能下降) · 建議預設使用udelay · ndelay 在一些非PC的裝置上 ex: ...

2023年8月17日 — Busy waiting, also known as spinning, or busy looping is a process synchronization technique in which a process/task waits and constantly checks ...

2023年12月12日 — Busy waiting is defined as the process where the process or task continuously the processor and waits for the condition to be satisfied. Whereas ...

在軟體工程中，忙碌等待（也稱自旋；英語：Busy waiting、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 ...