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125

answers:

1
+1  Q: 

programatically disable hardware prefetching on AMD systems

is there a way to programatically disable the hardware prefetcher on an AMD system like you can in an Intel system as discussed in this topic

Specifically for the AMD Opteron Barcelona or Istanbul architecture.

A: 

use the msr tools to change the DC_CFG bits as specified in the AMD support document on p407

http://support.amd.com/us/Processor_TechDocs/31116.pdf

Mark  2010-02-25 06:31:34

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