Why aren't spinlocks appropriate for a single processor?

2023年7月22日 — Spinlock is a synchronization mechanism used in operating systems to protect shared resources from single access by multiple threads or ...

2009年6月22日 — Yes, spin locks can be useful, and improve efficiency of some operations. However, generally you should start with a mutex, and if profiling ...

2017年2月16日 — Without preemption, spin locks don't make much sense on a single CPU, as a thread spinning on a CPU will never relinquish it. Why does a thread ...

2011年9月15日 — : A:Spinlocks should not be used on single-processor systems. ... spinlock can : continue running on a different processor. : 老實說有點 ...

2010年11月8日 — Explain why spinlocks are not appropriate for single-processor systems yet are often used in multiprocessor systems. Ans. 因為single-processor ...

Hi, I've read that on single-processor machines rather than holding a spinlock, the kernel disables kernel preemption (2.6). However, it seems that

Answer: Spinlocks are not appropriate for single-processor systems because the condition that would break a process out of the spinlock can be obtained.

2011年9月15日 — ... single-processor systems yet are often used in multiprocessor systems? A:Spinlocks should not be used on single-processor systems. Consider ...

2013年11月17日 — Spinlocks are not appropriate for single-processor systems because the condition that would break a process out of the spinlock can be obtained ...

2015年2月8日 — On a single processor system a spin lock won't work at all. There's only one processor so if that one processor tries to acquire a locked mutex, ...