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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Not to start a flame war....
by pantheraleo on Tue 10th Feb 2009 00:54 UTC
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Not to start a flame war, but it seems clear that the people who ran this benchmark didn't know what the hell they were doing:

(A) They ran it on OpenSolaris using an outdated GCC.
(B) They never considered that the native Sun compiler might be faster.
(C) They never bothered to check whether Ubuntu GCC was producing 64 bit binaries by default, and that was not happening on OpenSolaris.

Ultimately, this comes down to a test that was biased in favor of Linux to begin with. And the test is totally meaningless because of that.

Edited 2009-02-10 00:56 UTC

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