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Politics : Formerly About Advanced Micro Devices
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To: Scumbria who wrote (107320)4/22/2000 1:20:00 AM
From: Ali Chen  Read Replies (2) of 1573029
 
<There isn't any formula, and it is not consistent from application to application. I base my numbers on trace simulations.>

The hit rate depends on code and data locality, and
therefore there are huge variations totally dependent
on the application. Again, hit rates are different for
code and for data. What year are your traces? SPECint92?

Athlon and Alpha have 64bytes cacheline, Pentiums
have 32Bytes.

<The critical word is always forwarded directly to the execution unit,>
Surprisingly, Rambus does not do this :)

Again, people always forgot about FSB overhead,
TLB handling, and snooping/probing.
The whole article is not professional.

- Ali
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