Adaptive Spinlock Backoff Strategy - Quant Developer Interview Question
Difficulty: Medium
Category: concurrency
Asked at: Jump Trading, Tower Research, Citadel Securities, Optiver, HRT
Topics: concurrency, low-latency, spinlock, c++
Problem Description
Efficient thread synchronization is crucial to minimize latency while preventing CPU starvation. An adaptive backoff strategy optimizes this balance by dynamically transitioning between busy-spinning, thread yielding, and sleeping based on the wait duration. This mechanism reduces expensive context switches for short waits while conserving resources during longer delays.
Task
Implement the wait method within the BackoffWaiter class to execute an adaptive backoff loop. The method accepts a condi
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