A variety of tests were run, but there was not any measurable difference in the Linux tests conducted. Simply comparing the Linux 3.0 to Linux 3.1 kernel also did not yield any interesting results. However, depending upon your system configuration and software, your results may vary. More of these AMD FX-8150 eight-core Linux benchmarks can be found on OpenBenchmarking.org. Besides kernel patches, there's also work by AMD on enhancing the performance of CPUs on the Builldozer architecture via compiler optimizations.
Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.