"Vlad GALU" <dudu at dudu.ro> writes: > Hello list, I've been trying to use TSC without disabling ACPI > and I failed. Is there a way I can achieve that? As long as ACPI was > in use, the system always chose ACPI-fast. It varies a bit with the FreeBSD version, but did you try setting the kern.timecounter.hardware sysctl?