Cool and save: cooling aware dynamic workload scheduling in multi-socket CPU systems
Raid Zuhair Ayoub, Tajana Rosing · 2010
Abstract — Traditionally CPU workload scheduling and fan control in multi-socket systems have been designed sep-arately leading to less efficient solutions. In this paper we present Cool and Save, a cooling aware dynamic workload management strategy that is significantly more energy ef-ficient than state-of-the art solutions in multi-socket CPU systems because it performs workload scheduling in tan-dem with controlling socket fan speeds. Our experimental results indicate that applying our scheme gives average fan energy savings of 73 % concurrently with reducing the max-imum fan speed by 53%, thus leading to lower vibrations and noise levels. I.