StarTech 12U Computer Rack

In needing to make more room for Ryzen/Epyc/ThreadRipper and Core-X Series, the StarTech 12U rack was the latest investment. This 12U rack can, fortunately, fit quite comfortable under my custom-made desk.

15 Minutes Ago - Enclosures - Add A Comment
Haswell-Tuned Binaries Are Still Sometimes Faster On AMD Ryzen Than Znver1 Tuning

Yesterday I posted benchmarks of Clang 4 vs. Clang 5 with AMD Ryzen now that LLVM 5 has received the initial AMD Zen "znver1" scheduler model. That scheduler model and improvements to LLVM/Clang 5.0 yielded some performance improvements, but still there are cases where using "-march=haswell" for tuning and running those generated binaries on Ryzen leads to better performance.

6 Hours Ago - Compiler - March - 2 Comments
NVIDIA's Server-Side GLVND Implementation

Earlier this week I wrote about Adam Jackson's work at Red Hat on a prototype of an X.Org server-side GLVND implementation. NVIDIA has also now announced their coincidentally similar work.

6 Hours Ago - X.Org - Server-Side GLVND - 10 Comments

20 July

AMDGPU vs. Radeon DRM On Linux 4.13 For AMD GCN 1.0/1.1 GPUs

With the Linux 4.13 kernel currently under development there are new module parameters that can make it easier switching from the Radeon DRM default on GCN 1.0 and GCN 1.1 GPUs to instead using the newer AMDGPU DRM driver, but Radeon remains the default. Here's my test experiences and benchmark results of AMDGPU vs. Radeon for GCN 1.0/1.1 GPUs.

20 July 01:14 PM EDT - Display Drivers - 35 Comments
Benchmarking LLVM/Clang's New AMD Zen Scheduler Model

Just prior to LLVM 5.0 being branched yesterday, the AMD Zen scheduler model finally landed in LLVM and has the potential of boosting the performance of generated binaries targeting AMD's Zen "znver1" architecture. Here are some benchmarks of LLVM Clang 4.0 compared to the latest LLVM Clang compiler code when testing with both generic x86-64 optimizations and then optimized builds for the first-generation Zen CPUs, tested on a Ryzen 7 processor.

20 July 08:22 AM EDT - Software - 7 Comments
Qt Creator 4.4 Enters Beta

The Qt Company has announced the first public beta of the Qt Creator 4.4 integrated development environment.

20 July 06:35 AM EDT - Qt - Qt Creator 4.4 - 2 Comments

19 July

Intel 545s 512GB SSD Benchmark On Linux

Intel announced their 545s series SSD last month and it's been making plenty of rounds on Windows. Curious about the Linux performance, I picked up the Intel 545s 512GB SATA 3.0 SSD for benchmarking on Linux.

19 July 12:28 PM EDT - Storage - 7 Comments

18 July

Linux 4.13-rc1 Tests Of AMDGPU Paired With RADV/RadeonSI Mesa 17.2-dev

I've just finished out a round of tests using the Linux 4.13-rc1 kernel with its new AMDGPU driver code. No regressions with my Polaris and Fiji tests, but at the same time no performance gains trickled through when running various tests with RADV Vulkan and RadeonSI OpenGL from Mesa 17.2-dev.

18 July 09:55 AM EDT - Radeon - Linux 4.12 vs. 4.13-rc1 - 1 Comment
NVIDIA Proposes "DeepColor Visual" Extension For X.Org Server, For HDR On Linux

Since last year NVIDIA has been working on HDR support for the Linux desktop. They've worked on support for their driver, but with the Linux infrastructure for High Dynamic Range monitors lacking, they've been working on lower-level Linux improvements to allow for a HDR Linux desktop ecosystem with this next-generation of displays.

18 July 08:36 AM EDT - X.Org - X11 DeepColor Visual - 29 Comments
VC5 Driver Development Continues, Raspbian Performance Still Being Tuned

Earlier this month the VC5 open-source driver was announced as a new driver for Broadcom's next-generation graphics processor. This has already led to speculation this much more powerful GPU will be found in future Raspberry Pi hardware. Work on this driver has continued while not forgetting about the VC4 driver for current-gen Raspberry Pi devices.

18 July 06:44 AM EDT - Hardware - Raspberry Pi - 7 Comments

17 July

KWin Now Requires C++14; Perhaps More Of KDE Will Make Use Of Newer C++?

KDE's KWin window manager previously made optional use of C++14 when a supported compiler was now available but is now explicitly requiring a C++14 compiler. With this being a core component for the KDE Plasma desktop, hopefully we'll soon be seeing more of KDE make use of more modern C++ features?

17 July 02:29 PM EDT - KDE - KWin Compiler - 18 Comments
New Features Coming For Glibc 2.26

Given our recent articles of Glibc enabling a per-thread cache for malloc and Fedora 27 will use glibc 2.26, you may be curious about some of the other features coming to this next version of the GNU C Library.

17 July 06:03 AM EDT - GNU - glibc 2.26 - 1 Comment

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