( BaT | 2022. 09. 28., sze – 15:38 )

A lényeg ebben a bekezdésben van:

However, sampling certain workloads with IBS on AMD Zen3 system shows that a significant amount of time is spent in the dummy op, which incorrectly gets accounted as C-State residency. A large C-State residency value can prime the cpuidle governor to recommend a deeper C-State during the subsequent idle instances, starting a vicious cycle, leading to performance degradation on workloads that rapidly switch between busy and idle phases.

Ha jól értem ez azt jelenti, hogy ez elrontja a cpuidle governor statisztikáját, ezért a CPU-t alacsonyabb teljesítményre állítja, mint amit a workload indokol.