# G 24-24 WarrantyVoidOld ('' 'warranty void - Pre Pi2') # F 23-23 EncodedFlag ('' 'revision is a bit field') # C 16-19 Manufacturer ('Sony UK' 'Egoman' 'Embest' 'Sony Japan' 'Embest' 'Stadium') # WarrantyVoidNew/| |Mem Manu Proc ModelName PCB # Fields uuuu uuHG FMMM CCCC PPPP TTTT TTTT RRRR So the script should output official information now. MAC-address(es) = b8:27:eb:12:34:56 b8:27:eb:ab:cd:efД®DIT: The documentation was updated in the meantime, I'd like to know what the RaspBerry Pi 4 codes for ModelName,Processor and Memory are. You can see that the scaling_cur_freq tunable is showing a slowdown in core # 1 & 2.To enhance my bash script decoding the Revision returned by cat /proc/cpuinfo Scaling_governor: ondemand ondemand ondemand ondemand When you run it you get the following output: $. NthCore=$(lscpu|grep node0|cut -d'-' -f2)ДЇor i in /sys/devices/system/cpu/cpu0/cpufreq/_* do I put the following script together to show the CPU Cores column-wise so it would be easier to see what the various Kernel tunables looked like: #!/bin/bash For actual operational telemetry I'd use the scaling_* kernel tunables. This parameter has more to do with the specification of the CPU and which profile it's currently in, rather than anything useful with respect to how the CPU is currently operating. More details are available in this article, titled: CPU frequency scaling in Linux with cpufreq. $ sudo cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq You can see the maximum & minimum CPU speeds available for your governor's profile: $ sudo cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq You can either substitute in a * in the path to see all the cores or you can selectively see cpu1, etc. NOTE: The commands I'm showing only include the 1st cpu, cpu0. You can also see which one is currently active: $ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor You can see which ones are available with this command: $ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors The mode your system is in is called the scaling governor. NOTE: the number of cores that it has, NUMAS node0 CPU(s) is 4, i.e. You can however see the absolute (max) speed with this command: $ lscpu On a multi-core system such as an i7 or i5 you can see this with this command: $ cat /proc/cpuinfo |grep MHz The line that shows cpu MHz doesn't show the maximum speed of your CPU. Specifically this line: model name : Intel(R) Core(TM) i5 CPU M 560 2.67GHz The absolute (max) CPU speed is being reported by this: $ cat /proc/cpuinfo The realtime speed of the CPU is reported by this: $ sudo cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_cur_freq It's typically called CPU frequency scaling. Most CPU's now include the ability to adjust their speed to help in saving on battery/power usage.

Chart of cpuinfo model vs name