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Politics : Formerly About Advanced Micro Devices
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To: DRBES who wrote (55814)4/18/1999 1:10:00 PM
From: Scumbria  Read Replies (1) of 1578520
 
DARBES,

The problem with a trace simulator (as opposed to a cycle-accurate simulator) is that it does not take into account the real-time interactions in the pipeline.

A good example of this is the pipelined three cycle L1 latency on K7. Without knowing the exact timing of the next cache access, it is impossible to determine the performance impact of the extra cycle latency.

It is very unlikely that any cycle accurate K7 architectural simulators exist outside of AMD ;^)

Scumbria
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