What should the CPU usage be of a fully-loaded CPU that has been throttled?

Re:What should the CPU usage be of a fully-loaded CPU that h... by tayo42 on Sunday July 04, 2021 @01:17AM (#27727399)

Yeah that would be the thing to prove that prime95 is going through more instructions so the cpu runs hotter

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Re:What should the CPU usage be of a fully-loaded CPU that h... by waterhouse on Sunday July 04, 2021 @02:17AM (#27727617)

I see. But I expect that some instructions cost more (i.e. generate more heat) than others. Someone mentions AVX instructions, for example; presumably 1 million AVX-512 fused-multiply-add instructions cost a lot more than 1 million loads (we can probably arrange for the right proportion of loads to hit a CPU cache vs. go to main memory, so that they end up taking the same time). Even without AVX, I imagine things like 64-bit integer divisions or CRC32 instructions cost more than loads or stores, though I don't know by how much.

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Re:What should the CPU usage be of a fully-loaded CPU that h... by tayo42 on Monday July 05, 2021 @03:22PM (#27741086)

oh that makes sense, i guess that would be another aspect to measure

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