A 2013 paper[1] demonstrating exactly that: side channel detecting thermals that's measured without measuring on-CPU timing. Instead they measured CPU temperat

A 2013 paper[1] demonstrating exactly that: side channel detecting thermals that's measured without measuring on-CPU timing. Instead they measured CPU temperature through frequency drift measured through change of network packet markers. A bit contrived but they made it workable quite reliably. -- [1] https://www.ieee-security.org/TC/SP2013/papers/4977a080.pdf https://www.ieee-security.org/TC/SP2013/papers/4977a080.pdf