Question about RPI_HAL CPU info

[pascalbythree]

Code: Pascal  [Select][+][-]

1. procedure RPI_show_cpu_info;
2. begin
3.   writeln('rpi Snr  : ',RPI_snr);
4.   writeln('rpi HW   : ',RPI_hw);
5.   writeln('rpi proc : ',RPI_proc);
6.   writeln('rpi rev  : ',RPI_rev);
7.   writeln('rpi mips : ',RPI_mips);
8.   writeln('rpi Freq : ',RPI_freq);
9.   writeln('rpi Osci : ',(CLK_GetFreq(1)/1000000):7:2,' MHz');
10.   writeln('rpi PLLC : ',(CLK_GetFreq(5)/1000000):7:2,' MHz (CoreFreq)');
11.   writeln('rpi PLLD : ',(CLK_GetFreq(6)/1000000):7:2,' MHz');
12.   writeln('rpi HDMI : ',(CLK_GetFreq(7)/1000000):7:2,' MHz');
13.   writeln('CLK min  : ',(CLK_GetMinFreq/1000):   7:2,' kHz');
14.   writeln('CLK max  : ',(CLK_GetMaxFreq/1000000):7:2,' MHz');
15.   writeln('PWMHW min: ',(PWM_GetMinFreq(PWM_DIVImax)/1.0):7:2,' Hz');
16.   writeln('PWMHW max: ',(PWM_GetMaxFreq(PWM_DIVImin)/1000):7:2,' kHz');
17. end;

Can anybody help reading the raspberry CPU usage in freepascal with for example RPI_HAL ?
Can anybody read if the above procedure is to read CPU usage ? Witch variable ? or bad luck?

Greetz, Wouter van Wegen, PascalByThree

It has to read out quick, to fill the graph form below. Cross compiled to my RPI

[Thaddy]

well, the usual way to do that is reading loadavg with a timer.
Total CPU load is the first value and should be multiplied by 100 to get the percentage.

Code: Bash  [Select][+][-]

1. cat /proc/loadavg

But you can also read that into a memo, label, whatever, in code.
Note that "everything in Unix is a file" applies here: It is a real time value. You can connect it to a timer.
E.g. the TOP command/program also utilizes loadavg.

Code: Pascal  [Select][+][-]

1. program cpuload;
2. uses cthreads, classes;
3. var
4.   s:Tstrings;
5. begin
6.   s:= TStringlist.Create;
7.   s.loadfromfile('/proc/loadavg');
8.   writeln(s.text);
9.   // etc;
10.   s.free;
11. end.

Untested, but should be close.

[Thausand]

https://forum.lazarus.freepascal.org/index.php/topic,59344.msg442437.html#msg442437