CPU is Core2Duo T9900 (Penryn), prior I had 100 MHz available, now it starts with 800 MHz. I have "device acpi" in kernconf, should I add acpi_throttle?
FWIW, C1-C3 states are still present and one could argue that deep speed throttling provided no additional benefit, (hint.acpi_throttle.0.disabled=1 argument), yet it was nice to have and I grew accustomed to it (idling CPU was 100 MHz yet scaled very responsively under load to full speed).
(In reply to jakub_lach from comment #1)
coretemp0: <CPU On-Die Thermal Sensors> on cpu0
est0: <Enhanced SpeedStep Frequency Control> on cpu0
p4tcc0: <CPU Frequency Thermal Control> on cpu0