top | item 41218896 (no title) fear91 | 1 year ago It differs by CPU model. discuss order hn newest Thorrez|1 year ago So some CPU models wait 120 cycles and others wait a millisecond (millions of cycles)? That seems like a pretty drastic difference. I wonder why they would write code with such a drastic difference between CPU models. fear91|1 year ago No, Haswell's PAUSE is 9 cycles, the P-cores of Alder Lake are 160 cycles. Zen 4 is 65.
Thorrez|1 year ago So some CPU models wait 120 cycles and others wait a millisecond (millions of cycles)? That seems like a pretty drastic difference. I wonder why they would write code with such a drastic difference between CPU models. fear91|1 year ago No, Haswell's PAUSE is 9 cycles, the P-cores of Alder Lake are 160 cycles. Zen 4 is 65.
fear91|1 year ago No, Haswell's PAUSE is 9 cycles, the P-cores of Alder Lake are 160 cycles. Zen 4 is 65.
Thorrez|1 year ago
fear91|1 year ago