Open-source News

Tiger Lake + Renoir On Ubuntu Linux For Battery vs. AC Performance

Phoronix - Wed, 11/25/2020 - 00:30
Given the recent Intel presentation alleging AMD Ryzen laptop performance being worse on battery relative to the AC vs. battery performance seen with Intel EVO notebooks featuring Tiger Lake processors, I ran a mini comparison on my side to see whether there is any merit to Intel's information when testing under Ubuntu Linux.

Linux READFILE System Call Revived Now That It Might Have A User

Phoronix - Tue, 11/24/2020 - 21:08
Earlier this year we mentioned Greg Kroah-Hartman working on a new READFILE system call. The goal of this new syscall is for reading small and medium files more efficiently by having one call to read a file straight into a buffer without having to use the separate open/read/close system calls. It's looking like that system call is back on the table and could be mainlined now that there's a possible user...

LibreOffice 7.1 Beta Released With Faster Spell Checking, Speedier Find And Replace

Phoronix - Tue, 11/24/2020 - 19:30
LibreOffice 7.1 was branched this weekend that also marked the hard feature freeze for this next half-year update to this open-source office suite. LibreOffice 7.1 Beta has now shipped ahead of next month's release candidate and the additional test releases in January before going gold in early February...

Raspberry Pi V3DV Is Officially Vulkan Conformant, Lavapipe Also Nearing 1.0 Conformance

Phoronix - Tue, 11/24/2020 - 19:06
There are two interesting bits of news today pertaining to open-source Vulkan drivers being officially conformant with the Vulkan 1.0 specification in passing the necessary Vulkan CTS tests...

ZLUDA: Drop-In Open-Source CUDA Support For Intel Xe / UHD Graphics

Phoronix - Tue, 11/24/2020 - 16:30
An interesting solution built off Intel's oneAPI Level Zero is the open-source "ZLUDA" that is providing a "Level Zero CUDA" implementation for being able to run programs geared for NVIDIA CUDA atop Intel UHD / Xe Graphics hardware...

Build a motion detection system with a Raspberry Pi

opensource.com - Tue, 11/24/2020 - 16:02

If you want a home security system to tell you if someone is lurking around your property, you don't need an expensive, proprietary solution from a third-party vendor. You can set up your own system using a Raspberry Pi, a passive infrared (PIR) motion sensor, and an LTE modem that will send SMS messages whenever it detects movement.

Prerequisites

You will need:


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A beginner's guide to developing with React

opensource.com - Tue, 11/24/2020 - 16:01

React is a JavaScript user interface (UI) library that was built and is maintained by Facebook. React helps JavaScript developers think logically and functionally about how they want to build a UI.

With React, you can build:

  1. Single-page applications
  2. Applications that are easy to understand
  3. Scalable applications
  4. Cross-platform applications

React allows developers to build applications declaratively and offers a unidirectional flow of data.


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