Le 01/09/2021 à 12:36, Hans-Peter Lehmann a écrit :
I couldn't find details about Jens' processor frequency but I would be
surprised if he had ~3 times the frequency of ours (2.0 GHz base, 3.2
GHz boost).
Can you check how the processor performance goes during the run ?
This would help ensuring the processors clocks perfectly during your run.
To ease this part, you can use the exec module I committed recently in
fio : https://github.com/axboe/fio/blob/master/examples/exec.fio
There is an example on how dumping the cpuperf in // of a particular
workload.
If you don't want to use this, you can just run the turbostat cmdline
I'm sharing in this example.
Cheers,
Erwan,
