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spinlock - Do spin locks always require a memory barrier? Is spinning on a memory barrier expensive?

I wrote some lock-free code that works fine with local reads, under most conditions. Does local spinning on a ... feel for how this works. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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spinlock - What exactly are "spin-locks"?

I always wondered what they are: every time I hear about them, images of futuristic flywheel-like devices go dancing ... mind... What are they? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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