MCS (Mellor-Crummey and Scott) Variations in Java

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Strs2FillMyDrms · 11d ago

This MCS variation ("UnfairMCS"), spreads the CAS latency across multiple `node.next`, as opposed to its CLH counterpart which focuses its CAS pressures on a single point of contention on TAIL (in the `AbstractQueuedSynchronizer` case this is needed because each `prev` field needs to be set), fetching a new memory location on failure, helping offset the latency off of main memory, diverging it to all individual trails of `node.next` equally.

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MCS (Mellor-Crummey and Scott) Variations in Java

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