How about returning the same frequency to OS every and change it every 10sec?
2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8
totally fake value
2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 3.2 3.2 3.2 3.2 3.2 3.2 3.2 3.2 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8
totally fake value
This attack works by measuring the absolute (wall) time that elapses during many crypto operations and deriving the speed / private keys based on statistical methods applied to that timing data.
Side-channel attacks are by definition, attacks against unintentional information leakage by a machine. The laws of thermodynamics virtually ensure that side channel attacks will be a persistent issue as long as computers are made of matter and consume electricity, multi-tenant computing exacerbates the issue.