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krscent
Beginner
83 Views

about "L1 Data Cache Miss Performance Impact"

Hi,
The equation of ratio "L1 Data Cache Miss Performance Impact" is8 *L1D_REPL /CPU_CLK_UNHALTED.CORE.
so I was wondering what does the constant 8 stands for?
Kent
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1 Reply
Rob5
New Contributor II
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Krscent,

It is a multiplier of the performance impact and I believe it assumes 8 cycles per D1 miss with an overestimate due to out-of-order (OoO) execution.

Thanks
Rob
Intel Support

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