x64 Assembly MultiThreading 3: Mutexes, SpinLocks and Critical Sections @WhatsACreel

Uploaded February 2015 | Updated September 2026, 2 weeks ago

This video we'll be implementing a Critical Section with a Mutex acting in a SpinLock. The three topics are very closely related, and although it's a lot of information, I think it's best to tackle all three topics in a single video.

My goal is to point out the slight differences between the three terms, and explain how they interact. Then we implement a Critical Section in ASM and see that it is faster than using LOCK all the time.

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