Advanced Micro Devices - Moderated (AMD) Message Board

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Technology Stocks : Advanced Micro Devices - Moderated (AMD)

AMD 248.09

+6.2%

10:34 AM EST

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To: david1951 who wrote (244549)	12/17/2007 12:06:45 PM
From: Sarmad Y. Hermiz	Read Replies (1) of 275872

>> Have read conflicting reports about the patch affecting performance. Not a tech guy but who is doing the testing seems to have a lot to do with the results. << David, look specifically for tests on virtualization work loads. These are more important than any other. Without that aspect fixed, the chip will not be sold (for servers), period. siliconinvestor.com Posted by: chipguy In reply to: smooth2o who wrote msg# 54815 Date:12/17/2007 10:37:40 AM Post #of 54826 Did you notice this? Ashlee wrote: Speaking of performance issues, we've learned that virtualization software suffers from AMD's fix. The Register has received reports of virtualization software slowing by as much as 50 per cent. In the commentary some one claiming to be from AMD wrote: I head up AMD's XEN testing, and direct comparison testing (same changeset, same bittedness, same guests) against same speed XEON systems aren't indicating any sort of speed difference, let alone 50%! Curtis W. Rendon AMD, Austin Do you notice the difference? Ashlee claimed that K8L took a 50% hit from the TLB bug fix on virtualization. This guy says that clock for clock K8L is about as fast as Xeon for virtualization. Aside from Ruiz class obfuscation and misdirection in appearing to refute Ashlee's claim but not really doing so, wasn't AMD claiming a huge performance advantage over Xeon in virtualization for K8L about a year ago? Now it's not there even clock for clock.

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