prime95 equivalent for Raspberry pi OS?

[bassamanator]

I've been stressing my rpi8gb with a sysbench script that loops over and over again.

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#!/bin/bash
clear
for f in {1..7}
do
    vcgencmd measure_temp
    sysbench --test=cpu --cpu-max-prime=25000 --num-threads=4 run >/dev/null 2>&1
done
vcgencmd measure_temp

I've got 4 instances running (though I don't think that makes a difference) along with youtube playing. Video is choppy but the audio is steady. Been running for the past hour or so.

I want to stress/check stability using prime95 the way I do on my PC. But it's not running on my rpi.

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$ ./mprime -m
bash: ./mprime: cannot execute binary file: Exec format error

I wonder if it's because this is an ARM cpu?

In any case, is there a prime95 equivalent for raspberry pi OS 32 bit?

Thanks!

[RPIgoodSBC]

RPi zero...

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wget https://raw.githubusercontent.com/ssvb/cpuburn-arm/master/cpuburn-a7.S
gcc -o cpuburn-a7 cpuburn-a7.S
./cpuburn-a7

RPi...

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wget https://raw.githubusercontent.com/ssvb/cpuburn-arm/master/cpuburn-a53.S
gcc -o cpuburn-a53 cpuburn-a53.S
./cpuburn-a53

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sudo apt-get install stress
stress -c 4

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sudo watch vcgencmd measure_temp

https://github.com/ssvb/cpuburn-arm

[ejolson]

RPi zero...

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wget https://raw.githubusercontent.com/ssvb/cpuburn-arm/master/cpuburn-a7.S
gcc -o cpuburn-a7 cpuburn-a7.S
./cpuburn-a7

RPi...

Code: Select all

wget https://raw.githubusercontent.com/ssvb/cpuburn-arm/master/cpuburn-a53.S
gcc -o cpuburn-a53 cpuburn-a53.S
./cpuburn-a53

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sudo apt-get install stress
stress -c 4

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sudo watch vcgencmd measure_temp

https://github.com/ssvb/cpuburn-arm

The cpuburn programs work well for testing the cooling, but do not include consistency checks like prime95 does to determine whether the processor is actually functioning properly.

My recommendation is you use the high performance Linpack program. This program uncovered a problem with the original Pi 3B. It is a highly tuned and widely used measure of performance. More information is at

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