Language Selection

English French German Italian Portuguese Spanish

Multi-Core Scaling Performance Of AMD's Bulldozer

Filed under
Hardware

There has been a lot of discussion in the past two weeks concerning AMD's new FX-Series processors and the Bulldozer architecture. In particular, with the Bulldozer architecture consisting of "modules" in which each has two x86 engines, but share much of the rest of the processing pipeline with their sibling engine; as such, the AMD FX-8150 eight-core CPU only has four modules. In this article is a look at how well the Bulldozer multi-core performance scales when toggling these different modules. The multi-core scaling performance is compared to AMD's Shanghai, Intel's Gulftown and Sandy Bridge processors.

Each Bulldozer module consists of two x86 out-of-order processing engines, two 128-bit FMAC units, and two integer cores, but shares the fetch/decode stage, the floating-point scheduler, the L2 cache, and other parts of the module. Some have loosely compared this to Intel's Hyper Threading technology. Below are slides provided by AMD that detail the AMD Bulldozer model.

Rest here




More in Tux Machines

Leftovers: OSS

Development News

  • GCC 7 Moves Onto Only Regression/Doc Fixes, But Will Accept RISC-V & HSA's BRIG
    The GNU Compiler Collection (GCC) is entering its "stage four" development for GCC 7 with the stable GCC 7.1 release expected in March or April. Richard Biener announced today that GCC 7 is under stage four, meaning only regression and documentation fixes will be permitted until the GCC 7.1.0 stable release happens (yep, as per their peculiar versioning system, GCC 7.1 is the first stable release in the GCC 7 series).
  • 5 ways to expand your project's contributor base
    So many free and open source software projects were started to solve a problem, and people began to contribute to them because they too wanted a fix to what they encountered. End users of the project find it useful for their needs, and the project grows. And that shared purpose and focus attracts people to a project's community.
  • Weblate 2.10.1
    This is first security bugfix release for Weblate. This has to come at some point, fortunately the issue is not really severe. But Weblate got it's first CVE ID today, so it's time to address it in a bugfix release.

Intel Kabylake: Windows 10 vs. Linux OpenGL Performance

For those curious about the current Kabylake graphics performance between Windows 10 and Linux, here are some OpenGL benchmark results under each operating system. Windows 10 Pro x64 was tested and the Linux distributions for comparison were Ubuntu 16.10, Clear Linux, Antergos, Fedora 25 Xfce, and openSUSE Tumbleweed. Read more

Google's open-source Tilt Brush: Now you can create 3D movies in VR