15 December

14 December

FreeBSD ZFS vs. Linux EXT4/Btrfs RAID With Twenty SSDs

With FreeBSD 12.0 running great on the Dell PowerEdge R7425 server with dual AMD EPYC 7601 processors, I couldn't resist using the twenty Samsung SSDs in that 2U server for running some fresh FreeBSD ZFS RAID benchmarks as well as some reference figures from Ubuntu Linux with the native Btrfs RAID capabilities and then using EXT4 atop MD-RAID.

14 December 02:48 PM EST - Storage - 30 Comments
A Look At The Clear Linux Performance Over The Course Of 2018

With the end of the year quickly approaching, it's time for our annual look at how the Linux performance has evolved over the past year from graphics drivers to distributions. This year was a particularly volatile year for Linux performance due to Spectre and Meltdown mitigations, some of which have at least partially recovered thanks to continued optimizations landing in subsequent kernel releases. But on the plus side, new releases of Python, PHP, GCC 8, and other new software releases have helped out the performance. For kicking off our year-end benchmark comparisons, first up is a look at how Intel's performance-optimized Clear Linux distribution evolved this year.

14 December 06:00 AM EST - Operating Systems - 5 Comments
AMD Adding STIBP "Always-On Preferred Mode" To Linux

Initially during the Linux 4.20 kernel merge window with the STIBP addition for cross-hyperthread Spectre V2 mitigation it was turned on by default for all processes. But that turned out to have a sizable performance hit so the behavior was changed to only turn it on for processes under SECCOMP or when requested via the PRCTL interface. However, AMD is landing a patch that for select CPUs will have an always-on mode as evidently that's preferred for some AMD processors.

14 December 04:00 AM EST - Hardware - Single Thread Indirect Branch Predictors - 9 Comments

13 December

Radeon ROCm 1.9.1 vs. NVIDIA OpenCL Linux Plus RTX 2080 TensorFlow Benchmarks

Following the GeForce RTX 2080 Linux gaming benchmarks last week with now having that non-Ti variant, I carried out some fresh GPU compute benchmarks of the higher-end NVIDIA GeForce and AMD Radeon graphics cards. Here's a look at the OpenCL performance between the competing vendors plus some fresh CUDA benchmarks as well as NVIDIA GPU Cloud TensorFlow Docker benchmarks.

13 December 11:30 AM EST - Display Drivers - 16 Comments
Mesa 19.0 RADV Vulkan Driver Gets New Fixes To Help DXVK Gaming

Samuel Pitoiset of Valve's Linux graphics driver team has landed some fresh patches in Mesa 19.0 (and also marked for back-porting to the stable branch) to help out the DXVK gaming experience for Windows games using Direct3D 11 that are re-mapped to run on top of the Vulkan graphics API.

13 December 05:53 AM EST - Mesa - RADV + DXVK - Add A Comment

12 December

Linux Is Already In Good Shape For The New Features Of Intel Gen11 Graphics & Icelake

Besides seeing Icelake demos at the Intel Architecture Day that were running on Ubuntu, with closely tracking the Linux kernel's development most of the new features presented for Sunny Cove and Gen11 graphics have already been merged or at least available in patch form for some months within the Linux ecosystem. Here's a look at the features talked about yesterday and their state on Linux.

12 December 01:23 PM EST - Intel - Linux Support - 5 Comments
Intel Working On Open-Sourcing The FSP - Would Be Huge Win For Coreboot & Security

Intel's Architecture Day on Tuesday was delightfully filled with an overwhelming amount of valuable hardware information, but Intel's software efforts were also briefly touched on too. In fact, Raja Koduri reinforced how software is a big part of Intel technology and goes in-hand with their security, interconnect, memory, architecture, and process pillars and that's where their new oneAPI initiative will fit in. But what learning afterwards was most exciting on the software front.

12 December 09:00 AM EST - Intel - FSP - 30 Comments
Intel Details Gen11 Graphics & Sunny Cove For Icelake

At Intel's architecture day, the company finally detailed their "Gen 11" graphics that we've been seeing open-source Linux graphics driver patches for many months (Intel OTC posted their initial open-source display driver code in early January and has continued the enablement work since) albeit elusive in substantive user details and hardware until Icelake. But today at least we can share more about the significant improvements with Gen11 graphics.

12 December 09:00 AM EST - Intel - Intel Gen11 Graphics - 10 Comments

Past 30 Days Of News | Articles & Reviews | News Archives | RSS Feed