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0001691: Add Frequency scaling to kernel - MantisBT Endian Bugtracker
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IDProjectCategoryView StatusDate SubmittedLast Update
0001691Endian FirewallHardware related (kernel, drivers, hardware)public2009-03-19 04:472010-11-22 14:36
Reporterkfason 
Assigned To 
PrioritynormalSeverityfeatureReproducibilityN/A
StatusnewResolutionopen 
PlatformOSOS Version
Product Version2.2-rc3 
Target VersionFixed in Version 
Summary0001691: Add Frequency scaling to kernel
DescriptionIt would be nice for the firewall to throttle down a little bit when not under load. This would save power, cut heat etc. During off hours (night) is an example.

Ultimately add something to the GUI for what cpufreq governer you want the system to use such as ondemand, performance, conservative, etc. Otherwise let the more advanced users change it via root.
Additional InformationProbably need to do the drivers as modules so there is no complaints via Intel or AMD procs using the wrong driver under Power Management | CPU Frequency Scaling.
TagsNo tags attached.
Attached Files

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-  Notes
(0004468)
petr konderla (reporter)
2010-06-10 08:58

#try this (for p4 cpu)
modprobe p4_clockmod
modprobe cpufreq_ondemand
echo ondemand > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
echo ondemand > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor

#check
watch -d -n 1 cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
(0004531)
kfason (reporter)
2010-06-15 20:16

Petr. That worked on an Intel based one. When I put in the ticket I have and currently using AMD based. Looks like p4_clockmod is present, however the AMD ones (powernow_k8,k7) are not.
(0005174)
kfason (reporter)
2010-11-22 14:36

powernow_k8 module is present in 2.4.1 community. My Opterons are now running at 1000Mhz at idle instead of the 2200Mhz they would run at full.

- Issue History
Date Modified Username Field Change
2009-03-19 04:47 kfason New Issue
2010-06-10 08:58 petr konderla Note Added: 0004468
2010-06-15 20:16 kfason Note Added: 0004531
2010-11-22 14:36 kfason Note Added: 0005174

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