===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''
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===autre burn===
''cat /dev/urandom | md5sum''
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===bench===
''apt install sysbench
sysbench --test=cpu --threads=12 run''
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''apt install p7zip-full
7z b''