Okay!!! So looks like what has happened is a lot of changes. First, there's unofficial comments [1] stating that ondemand should not be used. Recently, the kernel seems to have changed the CPU Scaling driver for Intel CPUs to intel_pstate. In this driver, there's no ondemand governor.
Now, we could make the change, but I'd like to know how all this looks on a box with an AMD CPU? Can somebody with an AMD Cpu share what their interfaces are like? [1] https://plus.google.com/117091380454742934025/posts/2vEekAsG2QT On Monday 16 September 2013 07:08 PM, Ritesh Raj Sarraf wrote: > On Monday 16 September 2013 07:20 AM, Gianluigi Tiesi wrote: >> [....] Laptop mode disabled, not active SETTING OF KERNEL PARAMETER FAILED: >> echo ondemand \> /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor >> SETTING OF KERNEL PARAMETER FAILED: echo ondemand \> >> /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor SETTING OF KERNEL >> PARAMETER FAILED: echo ondemand \> >> /sys/devices/system/cpu/cpu2/cpufreq/scaling_governor SETTING OF KERNEL >> PARAMETER FAILED: echo ondemand \> >> /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor SETTING OF KERNEL >> PARAMETER FAILED: echo ondemand \> >> /sys/devices/system/cpu/cpu4/cpufreq/scaling_governor SETTING OF KERNEL >> PARAMETER FAILED: echo ondemand \> >> /sys/devices/system/cpu/cpu5/cpufreq/scaling_governor SETTING OF KERNEL >> PARAMETER FAILED: echo ondemand \> >> /sys/devices/system/cpu/cpu6/cpufreq/scaling_governor SETTING OF KERNEL >> PARAMETER FAILED: echo ondemand \> /sys/devices/system/cpu/cpu7/cpufreq/sca[ >> ok governor. >> >> >> while: >> cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors >> performance powersave >> >> echo ondemand > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor >> -bash: echo: write error: Invalid argument > Yes. I've noticed that too. Thank you for reporting the bug report. I > need to investigate what the new expected behavior is going to be... > On Tuesday 10 September 2013 02:51 PM, Ritesh Raj Sarraf wrote: > I couldn't cover for this issue in 1.64 release. If people have > suggestions on how to fix this, please drop a note on this list. > > On Thursday 08 August 2013 10:05 AM, Ritesh Raj Sarraf wrote: >> I plan on a release next week and would like to resolve this issue. >> Have you seen the interface (or a different interface) for the 3.10 >> kernel on your setup? >> >> >> On Saturday 20 July 2013 03:52 PM, Ritesh Raj Sarraf wrote: >>> I see what changed. >>> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4d5dcc4211f9def4281eafb54b8ed483862e8135 >>> >>> But I'm still not clear why my box doesn't have the ignore_nice >>> interface >>> >>> On Saturday 20 July 2013 03:41 PM, Ritesh Raj Sarraf wrote: >>>> Have things changed for others?? >>>> >>>> This is what I see on my kernel: >>>> >>>> rrs@zan:/lib/modules/3.10-1-amd64/kernel/drivers/cpufreq$ ls >>>> /sys/devices/system/cpu/cpufreq/ >>>> >>>> rrs@zan:/lib/modules/3.10-1-amd64/kernel/drivers/cpufreq$ ls >>>> /sys/devices/system/cpu/cpu0 >>>> cache/ cpuidle/ crash_notes_size node0@ subsystem@ >>>> topology/ >>>> cpufreq/ crash_notes microcode/ power/ thermal_throttle/ >>>> uevent >>>> >>>> rrs@zan:/lib/modules/3.10-1-amd64/kernel/drivers/cpufreq$ ls >>>> /sys/devices/system/cpu/cpu0/cpufreq/ >>>> affected_cpus cpuinfo_min_freq >>>> scaling_available_governors scaling_max_freq >>>> cpuinfo_cur_freq cpuinfo_transition_latency >>>> scaling_driver scaling_min_freq >>>> cpuinfo_max_freq related_cpus >>>> scaling_governor scaling_setspeed >>>> >>>> >>>> >>>> On my kernel, ondemand is set to in-kernel, but that should have >>>> broken the sysfs interface????? >>>> >>>> # CONFIG_CPU_FREQ_STAT_DETAILS is not set >>>> # CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set >>>> # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set >>>> CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y >>>> # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE 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=y >>>> CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m >>> >>> -- Ritesh Raj Sarraf RESEARCHUT - http://www.researchut.com "Necessity is the mother of invention."
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