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Linux Hardware Reviews, Performance Benchmarks & Open-Source / Free Software News
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X-Plane's Vulkan Renderer Maturing, More Performance Optimizations Still Coming

Sun, 05/17/2020 - 20:39
The folks at Laminar Research published a new blog post this week detailing their latest development work on their Vulkan (and Apple Metal) renderers for the realistic X-Plane flight simulator...

Intel CET Support Still Getting Squared Away For Linux In 2020

Sun, 05/17/2020 - 19:55
Various open-source patches have gone back to at least 2017 for enabling Intel's Control-Flow Enforcement Technology (CET) for the Linux kernel and related components. This is the Intel feature for helping prevent ROP and COP/JOP style attacks via indirect branch tracking and a shadow stack. Recently there has been a fair amount of CET improvements to the various open-source components...

Linux Thunderbolt Support Can Work On Arm Systems

Sun, 05/17/2020 - 18:55
While there aren't yet any Arm SoCs we are aware of at least offering Thunderbolt connectivity, that will eventually change with at least USB4 being based on Thunderbolt. But in any case Thunderbolt software support can work on Arm today if using a Thunderbolt add-in PCIe card...

Zstd Compression Under Review For OpenZFS

Sun, 05/17/2020 - 18:38
The ZFS file-system has long offered transparent file-system compression via the likes of LZ4 and Gzip and while now Zstd compression is under review for OpenZFS and seeking testing from the community...

GCC 11 Proposal Would Default To C++17 Level Features

Sun, 05/17/2020 - 12:09
Since last year's GCC 9 release the C++17 support has been considered stable and with the changeover to it as the default C++ dialect having not happened for the recent GCC 10 release, developers are now looking at increasing the default C++ version to 17 for next year's GCC 11 release...

Patches Proceed For Disabling Radeon AGP GART, Deprecating TTM AGP

Sun, 05/17/2020 - 07:33
Several days back was the proposal to "remove AGP support" from Radeon/Nouveau/TTM. This did formulate into a set of patches that would disable the AGP mode in the Radeon driver and deprecate the AGP code in TTM memory management. However, as was pointed out in the ensuing discussion, AGP graphics cards will still be operable on Linux with this level of deprecation by using the PCI GART mode...

100+ Linux Benchmarks Between The AMD Ryzen 7 4700U vs. Intel Core i7 1065G7

Sun, 05/17/2020 - 03:19
This week I began benchmarking the AMD Ryzen 7 4700U on Linux using the new Lenovo IdeaPad featuring this new Zen 2 "Renoir" APU. The initial CPU benchmarks were quite positive as were the Vega graphics comparison tests. Amid other follow-up articles for AMD Renoir Linux support/performance, for your weekend viewing pleasure are a large set of data points between the Ryzen 7 4700U up against the Intel Core i7 1065G7 "Ice Lake" processor...

DXVK 1.7 Released - Makes Use Of New Vulkan Extensions, Game Fixes

Sat, 05/16/2020 - 23:41
DXVK 1.7 is out this weekend as the important library translating Direct3D 9/10/11 usage into Vulkan API and is leveraged by the likes of Steam Play for running modern Windows games on Linux...

XDC2020 Call For Proposals - X.Org Developers For Now Still Planning To Meet In Poland

Sat, 05/16/2020 - 21:00
For now at least the in-person X.Org Developers' Conference is still on with plans for X.Org/Wayland/Mesa developers to meet in Gdańsk, Poland for their annual conference...

Intel Submits Last Batch Of Graphics Feature Code For Linux 5.8 - SAGV For Tiger Lake

Sat, 05/16/2020 - 20:09
Intel's open-source graphics driver team on Friday sent in a final set of kernel graphics driver updates targeting the upcoming Linux 5.8 cycle...

GCC 11 Enables Co-Routines Support In C++20 Mode

Sat, 05/16/2020 - 18:55
The recently released GCC 10 compiler landed initial coroutines support for this major C++20 feature but wasn't enabled unless explicitly enabling that option...

KDE Developers Are Busy Polishing Plasma 5.19

Sat, 05/16/2020 - 18:27
The Plasma 5.19 beta was released this week but that's not the finish line yet and KDE developers have remained very busy polishing it up for ensuring this open-source desktop has a stellar release coming up...

Google Posts Patches Allowing AMD Zen/Zen2 CPUs To Expose Power Usage On Linux Via RAPL

Sat, 05/16/2020 - 12:00
One of the long sought after features for AMD Zen (and Zen 2) processors on Linux has been the ability to monitor the CPU package power consumption on Linux, similar to what's long been available for Intel CPUs on Linux and similarly for older AMD Bulldozer era CPUs with a power monitoring driver. Now on Friday evening a patch series was posted by a Google engineer to provide this long sought after functionality...

AMD Rethinks Decision And Will Open-Source Most Of Radeon Rays 4.0

Sat, 05/16/2020 - 07:00
Two days ago as part of the GPUOpen relaunch AMD released Radeon Rays 4.0 as their ray intersection library. Unlike the previous Radeon Rays release, however, this new Vulkan-enabled version was not open-source. But now AMD has decided that at least in large part it will be going back to open-source...

Half-Life: Alyx Update Adds Native Linux Support, Vulkan Rendering

Sat, 05/16/2020 - 04:49
On launch-day Valve had Half-Life: Alyx running on Linux via Steam Play while with the VR game's latest update is now a Linux-native build and Vulkan rendering support...

Intel oneAPI DPC++ Compiler Merges Its Initial CUDA Backend

Sat, 05/16/2020 - 02:39
Intel's oneAPI crew just released version 2020-03 (though one would have thought it should be 2020-05) of their Data Parallel C++ (DPC++) compiler and with this release are several new features including the NVIDIA CUDA back-end...

Benchmarking Amazon's Graviton2 Performance With 64 Neoverse N1 Cores Against Intel Xeon, AMD EPYC

Sat, 05/16/2020 - 00:19
This week Amazon announced the general availability of their EC2 "M6g" instances powered by their second-generation Graviton processors. Amazon is offering a variety of M6g instances with the Graviton2 CPU, including a bare metal instance. In this article are many benchmarks looking at the various Amazon EC2 M6g instances compared to other EC2 Intel Xeon and AMD EPYC instances as well as looking at the M6g Graviton2 metal performance up against various Intel/AMD CPUs in our lab.

Intel SGX Linux Patches Posted For Their 30th Round Of Review

Fri, 05/15/2020 - 20:48
Weeks ahead of the Linux 5.8 kernel cycle kicking off it's still not clear if the Intel SGX foundation patches will be ready for merging, but they were sent out today as version 30 of this long-running effort for supporting the Intel enclaves functionality on the mainline kernel...

Linux 5.8's Multi-Queue Block Code Plumbed To Support Inline Encryption

Fri, 05/15/2020 - 19:04
For a number of months now various Google engineers have been working on inline encryption support for FSCRYPT in order to offer better encryption performance on modern SoCs. That FSCRYPT side work is coming together and now also queued up for Linux 5.8 is plumbing inline encryption into blk-mq...

Linux Driver Prepared For The Qualcomm Cloud AI 100 Accelerator

Fri, 05/15/2020 - 14:29
Announced over one year ago was the Qualcomm Cloud AI 100 Accelerator as designed for offering superior AI inference performance in the cloud. Since then not much has been heard of this accelerator but their engineers did publish a Linux driver on Thursday...

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