Linked by Thom Holwerda on Mon 9th Feb 2009 13:24 UTC, submitted by Michael
Benchmarks "In January we published a review of the AMD Shanghai Opteron CPUs on Linux- when we looked at four of the Opteron 2384 models. The performance of these 45nm quad-core workstation/server processors were great when compared to the earlier AMD Barcelona processors on Ubuntu Linux, but how is their performance when running Sun's OpenSolaris operating system? Up for viewing today are dual AMD Shanghai benchmarks when running OpenSolaris 2008.11, Ubuntu 8.10, and a daily build of the forthcoming Ubuntu 9.04 release."
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Might be some bias there, but ...
by johjeff on Mon 9th Feb 2009 19:45 UTC
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My guess is they are much more familiar with Linux and did the comparison based on default installations. It's the old argument of whether each OS should be optimized by experts for benchmarking, or whether each OS should ship optimized by default.

There is a good argument for each method depending on who your intended customer is. For Desktop use, the OS should definitely be shipped pre-optimized as much as possible. For experienced UNIX server admins, they often like to optimize and customize things themselves so they know exactly how their system is set up.

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