sysctl -a | grep dev.est
dev.est.3.freq_settings: 1501/0 1500/0 1400/0 1300/0 1200/0 1100/0 1000/0 900/0 800/0dev.est.3.%parent: cpu3dev.est.3.%pnpinfo:dev.est.3.%location:dev.est.3.%driver: estdev.est.3.%desc: Enhanced SpeedStep Frequency Controldev.est.2.freq_settings: 1501/0 1500/0 1400/0 1300/0 1200/0 1100/0 1000/0 900/0 800/0dev.est.2.%parent: cpu2dev.est.2.%pnpinfo:dev.est.2.%location:dev.est.2.%driver: estdev.est.2.%desc: Enhanced SpeedStep Frequency Controldev.est.1.freq_settings: 1501/0 1500/0 1400/0 1300/0 1200/0 1100/0 1000/0 900/0 800/0dev.est.1.%parent: cpu1dev.est.1.%pnpinfo:dev.est.1.%location:dev.est.1.%driver: estdev.est.1.%desc: Enhanced SpeedStep Frequency Controldev.est.0.freq_settings: 1501/0 1500/0 1400/0 1300/0 1200/0 1100/0 1000/0 900/0 800/0dev.est.0.%parent: cpu0dev.est.0.%pnpinfo:dev.est.0.%location:dev.est.0.%driver: estdev.est.0.%desc: Enhanced SpeedStep Frequency Controldev.est.%parent: