TPAUSE is the new instruction supported by Intel’s Tremont microarchitecture and beyond. TPAUSE allows for an optimized state that can provide low wake-up latency compared to existing delay mechanisms. With Linux 5.8, the kernel will begin making use of TPAUSE where supported…

Source: Phoronix – Linux 5.8 Prepped To Make Use Of TPAUSE Instruction With New Intel CPUs