Intel Hyper Threading Performance With A Core i7 On Ubuntu 18.04 LTS

Following the news yesterday of OpenBSD disabling Intel Hyper Threading by default within its OS over security concerns and plans to disable Simultaneous Multi Threading for other processors/architectures too, here are some fresh Intel HT benchmarks albeit on Ubuntu Linux. The OpenBSD developer involved characterized HT/SMT as "doesn't necessarily have a positive effect on performance; it highly depends on the workload. In all likelihood it will actually slow down most workloads if you have a CPU with more than two cores." So here are some benchmarks using a current-generation Intel Core i7 8700K six-core processor with Hyper Threading.

20 June 09:43 AM EDT - Computers - 26 Comments

19 June

Purism's Librem 5 To Rely On Secondary Processor For Binary Blobs

With not being able to deliver a 100% fully free software / libre system, the Librem 5 smartphone will rely upon a secondary processor for dealing with the necessary binary blobs for hardware initialization to keep them out of touch from the U-Boot boot-loader and Linux kernel.

19 June 11:51 AM EDT - Hardware - Secondary CPU Just For Blobs - 31 Comments
Fedora Atomic Workstation To Be Renamed Fedora Silverblue

Back in early May was the announcement of the Silverblue project as an evolution of Fedora Atomic Workstation and trying to get this atomic OS into shape by Fedora 30. Beginning with Fedora 29, the plan is to officially rename Fedora Atomic Workstation to Fedora Silverblue.

19 June 06:23 AM EDT - Fedora - Fedora Silverblue - 20 Comments

18 June

RadeonSI Lands OpenGL 3.3 Compatibility Profile Support

Thanks to work done over the past few months by AMD's Marek Olšák on improving Mesa's OpenGL compatibility profile support and then today carried over the final mile by Valve's Timothy Arceri, Mesa 18.2 now exposes OpenGL 3.3 under the compatibility context.

18 June 07:40 PM EDT - Mesa - RadeonSI GL 3.3 Compat - 22 Comments
Using W10Privacy To Boost Ubuntu WSL Performance On Windows 10

While Microsoft is working on low-level improvement to the Windows Subsystem for Linux (WSL) to yield better I/O performance, it is possible to dramatically increase some disk workloads by removing a number of running Windows services via the independent W10Privacy application. Here are some benchmarks of W10Privacy on the overall performance impact to Microsoft Windows 10 Pro x64 itself and of Ubuntu 18.04 running on the Windows 10 installation via WSL.

18 June 09:09 AM EDT - Software - 22 Comments
OpenGL Floating Point Textures No Longer Encumbered By Patents, Enabled In Mesa

Back in 2012 when talking with Gabe Newell of Valve about open-source/Linux challenges one of the topics he was awed about was patents encumbering the open-source graphics driver progress. Six years later, Timothy Arceri working on the Valve Linux graphics driver team has freed Mesa's ARB_texture_float support from being built conditionally due to these patent fears.

18 June 12:05 AM EDT - Mesa - ARB_texture_float - 44 Comments

17 June

EXT4 fscrypt vs. eCryptfs vs. LUKS dm-crypt Benchmarks

Given the recent advancements of the EXT4 file-system with its native file-system encryption support provided by the fscrypt framework, here are benchmarks comparing the performance of an EXT4 file-system with no encryption, fscrypt-based encryption, eCryptfs-based encryption, and a LUKS dm-crypt encrypted volume.

17 June 07:42 PM EDT - Storage - 5 Comments
Canonical Shifts Its Fiscal Year Ahead Of Likely IPO

You have likely heard by now about Ubuntu maker Canonical planning to do an initial public offering (IPO) at some point in the not too distant future to become a publicly-traded company. The latest sign of that is Canonical has now shifted its corporate calendar.

17 June 07:08 PM EDT - Ubuntu - Canonical Calendar - 14 Comments

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