June 15, 20206 yr I have two unraid servers. One uses an Atom C3758 CPU. After installing the Tips and Tweaks Plugin and changing from On Demand to Power Save it downclocks to 800 Mhz as expected. The other server uses a Pentium J5005. The dashboard returns most of the time a usage of 0-2% for all cores: By using this command in the web terminal: watch grep \"cpu MHz\" /proc/cpuinfo it returns 2.3 Ghz: Every 2.0s: grep "cpu MHz" /proc/cpuinfo Black: Mon Jun 15 00:03:51 2020 cpu MHz : 2399.270 cpu MHz : 2315.888 cpu MHz : 2088.474 cpu MHz : 2333.949 After disabling the Intel Turbo it returns 1.3 GHz: Every 2.0s: grep "cpu MHz" /proc/cpuinfo Black: Mon Jun 15 00:07:02 2020 cpu MHz : 1318.495 cpu MHz : 1342.343 cpu MHz : 1245.570 cpu MHz : 1369.103 It clocks now under the baseclock (1.5 Ghz) of this CPU?! But the real strange thing is the power consumption as its nearly the same for all settings (all five disks spun down): Performance + Turbo: 18.59W Power Save + Turbo: 18.09W Power Save: 18.09W Power Save + Closed all browser windows: 18.02W Power measurement was done with a good consumer power meter (<5W +/- 100mW and >5W +/- 2%). EDIT: Hmm I restarted the server and altough the Tips and Tricks plugin displays "Power Save" its in "Performance" mode (as all cores stay at 2.6GHz). Edited June 15, 20206 yr by mgutt
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