AMD "Bdver3" Steamroller GCC Testing With Kaveri
Written by Michael Larabel in AMD on 3 February 2014 at 12:58 PM EST. Add A Comment
Following the GCC 4.9 Kaveri benchmarks and Clang 3.4 benchmarks with Kaveri, here's some other benchmarks from GCC looking at the impact of "-march=bdver3" and other CPU tuning flags from the AMD A10-7850K APU on Ubuntu Linux.

This was just some quick benchmarking on the A10-7850K system with Ubuntu 14.04 LTS and running the Linux 3.13 kernel while using GCC 4.9.0 20140126 as the primary compiler.

All tests happened when compiling all test profiles with -march=bdver3 as set by the CFLAGS/CXXFLAGS and then -march=bdver2, -march=bdver1, -march=barcelona, and -march=k8. For those wanting more information on what these options mean, checkout the GCC online documentation.

The results from this latest AMD A10-7850K Linux compiler testing are on via 1401282-PL-GCC49COMP74. All in all, there isn't much change out of "-march=bdver3" in place of -march=bdver2 for the Steamroller cores on this APU.

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Michael Larabel is the principal author of 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 automated benchmarking software. He can be followed via Twitter or contacted via

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