Benchmarking like that is often broken because of continuous CPU core clock speed adjustments, system interrupts, SMIs, etc.
I tried to fix it by switching hyperthreading off, playing with the scaling governor, boost, setting a CPU frequency to no avail. The jitter was too much and the results were not reproducible, so I just gave up.
Of course your mileage may vary; this was on an AMD Zen 3 CPU.
I tried to fix it by switching hyperthreading off, playing with the scaling governor, boost, setting a CPU frequency to no avail. The jitter was too much and the results were not reproducible, so I just gave up.
Of course your mileage may vary; this was on an AMD Zen 3 CPU.