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Thomas's avatar

Apparently the TSC behavior has changed drastically between Zen/Zen+/Zen2 and Zen 3. On my Zen 3 machine, it actually ticks with a granularity matching the full clockspeed of 3.4GHz, while on my old zen+ system it ticks at the same 100 MHz you were seeing on that Zen 2 server.

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CyrIng's avatar

In bigLittle cntfreq returns frequency counter but of the max processor

For instance, with RK3588, we are reading frequency of A76 on A55 cores!

How to improve accuracy ?

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