On Tue, 2024-05-21 at 10:10 +0300, Jarkko Sakkinen wrote: > This benchmark could be done in user space using /dev/tpm0. Let's actually try that. If you have the ibmtss installed, the command to time primary key generation from userspace on your tpm is time tsscreateprimary -hi n -ecc nistp256 And just for chuckles and grins, try it in the owner hierarchy as well (sometimes slow TPMs cache this) time tsscreateprimary -hi o -ecc nistp256 And if you have tpm2 tools, the above commands should be: time tpm2_createprimary -C n -G ecc256 time tpm2_createprimary -C o -G ecc256 James