Intel's Vulkan Driver Begins Making Infrastructure Changes For Multi-GPU Support

For months we have seen various Intel open-source Linux graphics driver patches that begin preparing for multi-GPU support where in moving forward with their Xe graphics cards there could be the iGPU + dGPU setup or even multiple Xe graphics cards in a single system. So far those Intel Linux multi-GPU preparations have been focused on their kernel-space driver while now it's reaching into user-space with their Vulkan driver seeing early infrastructure changes.

2 Hours Ago - Intel - The Xe Future - 2 Comments
Fedora's FESCo Has Deferred Any Decision On EarlyOOM By Default

One of the changes planned for Fedora 32 has been to enable EarlyOOM by default to better handle low memory situations either due to the system running with minimal RAM or under memory pressure. But the Fedora Engineering and Steering Committee has yet to reach a decision over this default.

6 Hours Ago - Fedora - Fedora Workstation + EarlyOOM? - 3 Comments
XanMod-ing Ubuntu To Perform Closer To Intel's Clear Linux

Earlier this month many Phoronix readers were interested in our fresh tests of the XanMod-patched Linux kernel for boosting the desktop and workstation performance compared to Ubuntu's default Linux kernel. Among many patches, XanMod does pull in some kernel patches from Intel's performance-optimized Clear Linux, so we figured it would be interesting to see how the XanMod'ed Ubuntu compares to Clear Linux performance.

19 January

The Performance Cost To SELinux On Fedora 31

Following the recent AppArmor performance regression in Linux 5.5 (since resolved), some Phoronix readers had requested tests out of curiosity in looking at the performance impact of Fedora's decision to utilize SELinux by default. Here is how the Fedora Workstation 31 performance compares out-of-the-box with SELinux to disabling it.

19 January 02:10 PM EST - Software - 22 Comments
Intel's OSPray 2.0 Ray-Tracing Engine Released

An area where Intel continues striking with rhythm and near perfection is on the open-source software front with their countless speedy and useful open-source innovations that often go unmatched as well as timely hardware support. Out this weekend is their OSPray 2.0 release for this damn impressive ray-tracing engine.

19 January 07:26 AM EST - Intel - Intel Ray-Tracing - 9 Comments
The AMD Ryzen Thermal / Power Linux Reporting Improvements Working Well - V2 Up For Testing

A few days ago I reported on AMD's "k10temp" Linux kernel driver finally seeing the ability to report CCD temperatures and CPU current/voltage readings as a big improvement to this hardware monitoring driver. The work hasn't yet been queued for inclusion into the mainline kernel, but initial testing is working well and a second revision to the patches has been sent out.

19 January 12:04 AM EST - AMD - AMD k10temp - 23 Comments

18 January

More Details On Intel's CVE-2019-14615 Graphics Vulnerability, a.k.a. iGPU Leak

As for CVE-2019-14615 the Intel graphics vulnerability disclosed this week affecting Gen7 through Gen9 graphics architectures, it's been dubbed "iGPU Leak" by the researchers involved. Thanks to the researcher who originally discovered this vulnerability having reached out to us, we now have some more information on this issue they describe as a "dangerous vulnerability."

18 January 02:52 PM EST - Intel - iGPU Leak - 9 Comments
The Linux Kernel Obsoletes The Intel Simple Firmware Interface

We haven't heard of the Simple Firmware Interface in a number of years, but that changed this week in Linux now formally marking SFI as "obsolete" and confirmation Intel does not plan to ship any future platforms with this standard that dates back to their early days of working on Atom-powered mobile devices.

18 January 07:50 AM EST - Intel - Simple Firmware Interface - 1 Comment

17 January

ASUS TUF Laptops With Ryzen Are Now Patched To Stop Overheating On Linux

The AMD Ryzen Linux laptop experience continues improving albeit quite tardy on some elements of the support. In addition to the AMD Sensor Fusion Hub driver finally being released and current/voltage reporting for Zen CPUs on Linux, another step forward in Ryzen mobile support is a fix for ASUS TUF laptops with these processors.

17 January 09:00 AM EST - AMD - ASUS TUF + Ryzen Mobile - 27 Comments
Benchmarks Of Arch Linux's Zen Kernel Flavor

Following the recent Linux kernel tests of Liquorix and other scheduler discussions (and more), some requests from premium supporters rolled in for seeing the performance of Arch Linux's Zen kernel package against the generic kernel. Here are those benchmark results.

17 January 01:09 AM EST - AMD - Arch Linux Zen Benchmarks - 16 Comments

16 January

Red Hat Recommends Disabling The Intel Linux Graphics Driver Over Hardware Flaw

It's been another day testing and investigating CVE-2019-14615, a.k.a. the Intel graphics hardware issue where for Gen9 all turned out to be okay but for Gen7 graphics leads to some big performance hits. Besides the Core i7 tests published yesterday in the aforelinked article, tests on relevant Core i3 and i5 CPUs are currently being carried out for seeing the impact there (so far, it's looking to be equally brutal).

16 January 08:05 PM EST - Red Hat - CVE-2019-14615 - 24 Comments
Ryzen CPUs On Linux Finally See CCD Temperatures, Current + Voltage Reporting

One of the few frustrations with the AMD Ryzen CPU support on Linux to date has been besides the often delayed support for CPU temperature reporting has been the mainline kernel not supporting voltage readings and other extra sensors. But that is finally changing with the "k10temp" driver being extended to include current and voltage reporting plus CCD temperature reporting on Zen 2 processors.

16 January 01:39 PM EST - AMD - k10temp - 42 Comments
LLVM 10 Adds Option To Help Offset Intel JCC Microcode Performance Impact

Disclosed back in November was the Intel Jump Conditional Code Erratum that necessitated updated CPU microcode to mitigate and with that came with a nearly across the board performance impact. But Intel developers had been working on assembler patches for helping to reduce that performance hit. The GNU Assembler patches were merged back in December while now ahead of LLVM 10.0 that alternative toolchain has an option for helping to recover some of the lost performance.

16 January 09:06 AM EST - Intel - --x86-branches-within-32B-boundaries - 2 Comments

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