GCC Developers Potentially Deprecating Intel MPX

It was just with GCC 6 that MPX support was flipped on with Intel's Memory Protection Extensions (MPX) just premiering with Skylake CPUs. But now GCC developers are thinking about potentially deprecating this feature.

14 Hours Ago - Intel - Intel MPX + GCC - 1 Comment

23 May

Trying Out MESA_NO_ERROR / KHR_no_error Support On Mesa 17.2-dev

Merged last month into Mesa Git and improved since then with follow-up commits has been KHR_no_error support for reducing the overhead of the OpenGL drivers by disabling certain error handling for OpenGL games/applications. This in turn can free up some CPU utilization and possibly lead to power-savings too.

23 May 03:27 PM EDT - Mesa - No OpenGL Errors - 17 Comments

22 May

Radeon RX 560 Linux OpenGL/Vulkan Benchmarks

Last week the "Polaris Evolved" Radeon RX 560 graphics card launched. I picked up a Sapphire Radeon RX 560 for Linux testing and have those results to share today for OpenGL and Vulkan workloads under Linux using the 4.12 development kernel and Mesa 17.2-dev compared to a range of Radeon and GeForce graphics cards.

22 May 11:00 AM EDT - Graphics Cards - 12 Comments

21 May

AMD Ryzen AOCC 1.0 Compiler Tuning Benchmarks

On Friday I posted some benchmarks of AMD's new AOCC code compiler for Ryzen compared to LLVM Clang 4.0/5.0 and GCC 6/7/8. The AOCC 1.0 benchmarks on Ryzen 7 didn't offer much over LLVM Clang for which this "AMD Optimizing C/C++ Compiler" is based, but in this article are some tuning benchmarks.

21 May 12:00 PM EDT - Software - 25 Comments

20 May

Glibc / GNU Toolchain Dropping Google NaCl Support

Support for Google's Native Client (NaCl) has been removed from mainline glibc with the GNU toolchain no longer really being maintained or used for compiling code targeting this Chrome-supported sandboxed code execution environment.

20 May 06:12 PM EDT - GNU - Native Client - 9 Comments
AMDGPU-PRO 17.10 vs. Linux 4.12 + Mesa 17.2-dev Git

Given the RadeonSI/Gallium3D threaded pipe context work having landed earlier this week and there being other performance improvements with Linux 4.12 and Mesa 17.2-dev, here are some fresh benchmarks on an AMD Polaris card comparing this latest open-source graphics driver code as of this week compared to AMD's latest hybrid driver, AMDGPU-PRO 17.10.

20 May 12:00 PM EDT - Display Drivers - 32 Comments
KDAB Experimenting With Qt 3D For VR

Last year we covered some interest by Qt developers in potentially having virtual reality support for Qt 3D with OpenGL. It appears that work is getting closer to fruition.

20 May 08:06 AM EDT - Qt - Qt 3D VR - 15 Comments

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