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today's howtos

Submitted by Roy Schestowitz on Monday 11th of February 2019 08:54:54 AM Filed under

HowTos

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Librem 5 August Update

We are preparing everything for the Librem 5 to be delivered soon, and its software will focus on the most critical applications a phone needs: calls, messages and web browsing. There are supporting projects that will be delivered too, like GNOME Settings, the shell, GNOME Initial Setup, and GNOME Contacts. So without further ado, let’s take a tour through the software we will deliver–as well as some other applications that have seen some major changes.

low-memory-monitor: new project announcement

I'll soon be flying to Greece for GUADEC but wanted to mention one of the things I worked on the past couple of weeks: the low-memory-monitor project is off the ground, though not production-ready. low-memory-monitor, as its name implies, monitors the amount of free physical memory on the system and will shoot off signals to interested user-space applications, usually session managers, or sandboxing helpers, when that memory runs low, making it possible for applications to shrink their memory footprints before it's too late either to recover a usable system, or avoid taking a performance hit. It's similar to Android's lowmemorykiller daemon, Facebook's oomd, Endless' psi-monitor, amongst others Also: New Low-Memory-Monitor Project Can Help With Linux's RAM/Responsiveness Problem

IBM: Kubernetes/OpenShift, OpenPOWER, and Red Hat Enterprise Linux for Developers

Red Hat Integration delivers new Kubernetes Operators and expands data integration capabilities with latest release

We are pleased to announce the Q3 release of Red Hat Integration, which brings us further in our alignment around Red Hat OpenShift as the platform of choice for developing and deploying cloud-native applications across hybrid cloud environments, as well as helping customers get their integrations up and running easier and faster. As modern IT continues its rapid evolution, it becomes important that the cloud-native solutions supporting this transformation keep pace, enabling IT organizations to truly benefit from this constant innovation. To help customers take full advantage of this, we've updated, tested and certified every single component in Red Hat Integration with the latest version of OpenShift: Red Hat OpenShift 4.
The Linux Foundation Announces New Open Hardware Technologies and Collaboration

The Linux Foundation, the nonprofit organization enabling mass innovation through open source, today announced that the OpenPOWER Foundation will become a project hosted at The Linux Foundation. The project includes IBM’s open POWER Instruction Set Architecture (ISA) and contributed Source Design Implementations required to support data-driven hardware for intensive workloads like Artificial Intelligence (AI). OpenPOWER is the open steward for the Power Architecture and has the support of 350 members, including IBM, Google, Inspur Power Systems, Yadro, Hitachi, Wistron, Mellanox, NVIDIA, and Red Hat. The governance model within the Linux Foundation gives software developers assurance of compatibility while developing AI and hybrid cloud native applications that take advantage of POWER’s rich feature set and open compute hardware and software ecosystems. As the demand rises for more and more compute-intensive workloads like AI and in-memory analytics, commodity systems vendors have struggled with the looming predictions of the end of Moore’s Law. Central processing units (CPUs) may no longer handle the rising demands alone, and data-centric systems are built to maximize the flow of data between CPUs and attached devices for specialized workloads. By hosting OpenPOWER at The Linux Foundation, a cross-project, cross-community collaboration, it will accelerate development of hardware and software to support data-centric systems, by making it available to a growing global audience. “The OpenPOWER community has been doing critical work to support the increasing demands of enterprises that are using big data for AI and machine learning workloads. The move to bring these efforts together with the worldwide ecosystem of open source developers across projects at The Linux Foundation will unleash a new level of innovation by giving developers everywhere more access to the tools and technologies that will define the next generation of POWER architecture,” said Jim Zemlin, executive director at The Linux Foundation.
Raptor Computing Systems Planning To Launch New ATX POWER9 Board With OpenCAPI

In addition to the news out of the OpenPOWER Summit in San Diego that the POWER ISA is going open-source and the OpenPOWER Foundation becoming part of the Linux Foundation, Raptor Computing Systems shared they plan to launch a new standard ATX motherboard next year that will feature OpenCAPI connectivity. Built off the successes of their Talos II high-end server motherboard and lower-cost Blackbird desktop motherboard designs, there is apparently a new motherboard design for POWER9 being worked on that could launch in early 2020.
Why you should be developing on Red Hat Enterprise Linux

With a $0 Red Hat Developer membership, you get access to Red Hat Enterprise Linux (RHEL) at no cost. We have downloads available for RHEL versions starting as far back as 7.2, and as current as RHEL 8.1 Beta. The subscription costs nothing, and there are no additional costs for any of the software or content we make available through the program.

Android Leftovers

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Programming: Datasets for Credit Risk Modeling, Qt Designer, Refactoring to Multiple Exit Points, LLVM Clang Compiler

Datasets for Credit Risk Modeling

This tutorial outlines several free publicly available datasets which can be used for credit risk modeling. In banking world, credit risk is a critical business vertical which makes sure that bank has sufficient capital to protect depositors from credit, market and operational risks. During the process, its role is to work for bank in compliance to central bank regulations.
Embedding PyQtGraph (or any other custom PyQt5 widgets) from Qt Designer

Qt Designer is a great tool for designing PyQt5 GUIs, allowing you to use the entire range of Qt5 widgets and layouts to construct your apps. As your applications get more complex however you may find yourself creating custom widgets, or using PyQt5 libraries such as PyQtGraph, who's widgets are not available within Designer. Helpfully, Qt Designer supports a mechanism for using placeholder widgets to represent your custom or external widgets in your design. This tutorial will walk you through the process of using placeholders to include a PyQtGraph plot in your app from within Qt Designer.
Refactoring to Multiple Exit Points

Functions should have only a single entry point. We all agree on that. But some people also argue that functions should have a single exit that returns the value. More people don't seem to care enough about how their functions are organized. I think that makes functions a lot more complicated than they have to be. So let's talk about function organization and how multiple exit points can help.
Sony Continues Tuning AMD Jaguar Support Within The LLVM Clang Compiler

Thanks to Sony using LLVM Clang as their default compiler toolchain for their PlayStation game console, they continue making improvements to the AMD Btver2/Jaguar code for optimized performance. The Jaguar APU is what's in the current PlayStation 4 while we've already seen contributions from Sony to improve the Zen CPU support ahead of their next-generation console. Just this week was the newest contribution to the Jaguar/Btver2 target code within the LLVM compiler stack. This most recent addition is fixing the latency and throughput of CMPXCHG instructions. These improvements should yield better generated code around those instructions.

Runtu XFCE 18.04.3 Released, Which is Based on Ubuntu Bionic Beaver 18.04.3 LTS

Hsh has announced the release of Runtu 18.04.3, it’s third maintenance update of Runtu 18.04 (Bionic Beaver) LTS, which is based on the package release base of Bionic Beaver 18.04.3 LTS. It features full support of Russian localization and a set of pre-installed software, which make sure you to run the system smoothly. Also, backported few of the packages from Ubuntu 19.04 for better improvements. It’s backported Linux kernel version 5.0 and the graphics stack components, and the package database.

Graphics: AMD Publishes New RDNA Whitepaper and Mesa 19.2.0 RC1

AMD Publishes New RDNA Whitepaper

AMD's new RDNA whitepaper goes into detail explaining the efficiency and programming optimizations of this new design while retaining backwards compatibility with the GCN architecture. The 25-page read also covers True Audio Next, the Radeon Multimedia/Display Engines, caches, SIMD units, and other modern bits to these new Radeon graphics processors.

mesa 19.2.0-rc1

The first release candidate for Mesa 19.2.0 is now available.

The plan is to have one release candidate every Tuesday, until the
anticipated final release on 10th September 2019.

The expectation is that the 19.1 branch will remain alive with bi-weekly
releases until the 19.2.1 release.

In the path to 19.2.0 release, there is a tracker bug for the
regressions found since 19.1:
https://bugs.freedesktop.org/show_bug.cgi?id=111444

Here are the people which helped shape the current release.

Mesa 19.2-RC1 Released But Intel Still Looking To Add OpenGL 4.6 Support

Yesterday we shared that Mesa 19.2's release process would finally be getting underway with the first release candidate expected today following the code branching. Sure enough, that process began but now prominent Intel open-source graphics developer Jason Ekstrand is looking to get the OpenGL 4.6 support into this release. Mesa 19.2 release manager Emil Velikov branched the Mesa 19.2 code from master this evening followed by creating the first release candidate. Mesa 19.2-rc1 is now available and the plan is to issue new release candidates every week until the official release is ready to ship. Assuming they close their blocker bugs on time, the hope is to officially release Mesa 19.2.0 on 10 September.

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