calcul en ligne de commande chronométré
http://www.basicallytech.com/blog/index.php?/archives/23-command-line-calculations-using-bc.html
time echo 'scale=10000; 4*a(1)' | bc -l -q
autre burn
cat /dev/urandom | md5sum
\\
bench
apt install sysbench
sysbench –test=cpu –threads=12 run
apt install p7zip-full
7z b