On 18-10-16, 23:10, Rafael J. Wysocki wrote: > On Monday, October 17, 2016 07:46:06 PM Tim Walberg wrote: > > May or may not be related to similar reports, but here's what I've just > > observed > > on my system. Built a stock kernel from tags/v4.8.1, relevant cpufreq bits: > > > > CONFIG_ACPI_CPU_FREQ_PSS=y > > CONFIG_CPU_FREQ=y > > CONFIG_CPU_FREQ_GOV_ATTR_SET=y > > CONFIG_CPU_FREQ_GOV_COMMON=y > > CONFIG_CPU_FREQ_STAT=y > > CONFIG_CPU_FREQ_STAT_DETAILS=y > > # CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set > > # CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set > > # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set > > # CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set > > CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE=y > > # CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL is not set > > CONFIG_CPU_FREQ_GOV_PERFORMANCE=y > > CONFIG_CPU_FREQ_GOV_POWERSAVE=m > > CONFIG_CPU_FREQ_GOV_USERSPACE=m > > CONFIG_CPU_FREQ_GOV_ONDEMAND=m > > CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y > > CONFIG_CPU_FREQ_GOV_SCHEDUTIL=m > > # CONFIG_X86_PCC_CPUFREQ is not set > > CONFIG_X86_ACPI_CPUFREQ=m > > CONFIG_X86_ACPI_CPUFREQ_CPB=y > > > > > > Conservative is set as default governer, yet when boot completes, all CPUs > > are > > pegged at the highest frequency. Changing governor to powersave knocks them > > all > > down to the lowest available frequency. Putting them back on conservative > > (or > > ondemand) results in no change in frequency, despite generating load. > > Switching > > to performance of course kicks them back up to high frequency. Basically, > > the > > governors don't seem to be ... governing. > > The "convervative" governor issue seems to be the one fixed recently > (http://git.kernel.org/cgit/linux/kernel/git/rafael/linux-pm.git/commit/?h=pm-cpufreq&id=abb6627910a1e783c8e034b35b7c80e5e7f98f41). > > I'm not sure why "ondemand" behaves incorrectly for you though.
@Tim: Can you please try this as well: https://marc.info/?l=linux-kernel&m=147624218132250&w=2 Subject: [PATCH V2] cpufreq: skip invalid entries when searching the frequency -- viresh
