Arm Announces Cortex-A77 & Mali-G77 Valhall

In addition to AMD announcing their Ryzen 3000 line-up, Arm also used today at Computex 2019 to announce their new Cortex processor as well as a new Mali graphics processor and machine learning chip.

46 Minutes Ago - Arm - Arm Cortex-A77 - Add A Comment

26 May

X.Org Server Closer To Better Handling On-Demand XWayland Startup

Merged this week to the X.Org Server code-base was an EGL-based GLX provider for helping XWayland and allowing some games to run nicely now under this X11 code-path for Wayland compositors. While not yet merged, another interesting bit of XWayland code is now under review as a merge request.

26 May 01:11 AM EDT - X.Org - XWayland On-Demand - 10 Comments
Firefox 68 Integrates BigInt Support

In addition to Firefox 68's WebRender slated to deliver much better performance, another headlining feature of this next Mozilla Firefox web-browser update is BigInt support.

26 May 12:02 AM EDT - Mozilla - Firefox 68 + BigInt - 28 Comments

25 May

GNOME Developers Plot Future Improvements For Pango

The Pango layout engine library that's been around for nearly two decades and used by GNOME's GTK and other software hasn't seen much love lately. Fortunately, Matthias Clasen and others are envisioning some improvements to this library and modeling it more around the HarfBuzz shaping engine work.

25 May 02:58 PM EDT - GNOME - Pango API - Add A Comment
FreeBSD 11.3 Enters Beta Ahead Of July Release

While FreeBSD 12 is the latest and greatest stable series since the end of last year, for those still on FreeBSD 11 there is the 11.3 update due out for release in July while this weekend the first beta was issued.

25 May 03:50 AM EDT - BSD - FreeBSD 11.3 - Add A Comment

24 May

AMD Staging Another Fix To Try Correcting Some Raven Ridge Systems On Linux

AMD Raven Ridge APUs have been out for more than one year now and at least under Linux can still be quite problematic depending upon the particular motherboard BIOS and other factors. Fortunately, while Raven 2 and Picasso APU support is appearing to be in better shape, the AMD open-source developers haven't forgot about these problematic Raven 1 systems.

24 May 01:45 PM EDT - AMD - Raven Ridge Woes - 39 Comments
Benchmarking AMD FX vs. Intel Sandy/Ivy Bridge CPUs Following Spectre, Meltdown, L1TF, Zombieload

Now with MDS / Zombieload being public and seeing a 8~10% performance hit in the affected workloads as a result of the new mitigations to these Microarchitectural Data Sampling vulnerabilities, what's the overall performance look like now if going back to the days of AMD FX Vishera and Intel Sandybridge/Ivybridge processors? If Spectre, Meltdown, L1TF/Foreshadow, and now Zombieload had come to light years ago would it have shaken that pivotal point in the industry? Here are benchmarks looking at the the performance today with and without the mitigations to the known CPU vulnerabilities to date.

24 May 08:56 AM EDT - Software - 44 Comments
Arm SVE2 Support Aligning For GCC 10, LLVM Clang 9.0

Given the significant performance benefits to Arm's Scalable Vector Extension 2 (SVE2), they are working on ensuring the open-source Linux compiler toolchains support these new CPU instructions ahead of SoCs shipping that support this big addition.

24 May 07:09 AM EDT - Arm - Scalable Vector Extension 2 - 5 Comments
GNU Binutils Begins Landing eBPF Support

The GNU Binutils is finally getting wired up around the Extended BPF (eBPF) as the modern, in-kernel virtual machine that stretches the Berkeley Packet Filter beyond the networking subsystem.

24 May 01:18 AM EDT - GNU - Binutils + eBPF - 10 Comments

23 May

ZombieLoad Mitigation Costs For Intel Haswell Xeon, Plus Overall Mitigation Impact

With tests over the past week following the disclosure of the Microarchitectural Data Sampling (MDS) vulnerabilities also known as "Zombieload", we've looked at the MDS mitigation costs (and now the overall Spectre/Meltdown/L1TF/MDS impact) for desktop CPUs, servers, and some laptop hardware. I've also begun doing some tests on older hardware, such as some Phoronix readers curious how well aging Intel Haswell CPUs are affected.

23 May 01:07 PM EDT - Linux Security - Haswell Xeon - 7 Comments
AMD GCN GPU Target Continuing To Improve For The GCC 10 Compiler

With the recent release of the GCC 9 stable compiler there is the initial "AMD GCN" GPU target/back-end merged. However, for this GNU Compiler Collection release the AMD GCN target isn't all that useful but continued work on it gives us hope of seeing it in good shape for next year's GCC 10 release.

23 May 09:28 AM EDT - AMD - AMD GCN - Add A Comment

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