Feed aggregator

Dual CPU's vs Single CPU with more cores (2 CPUs seem faster on linux)

Reddit - Sat, 2017-11-18 00:49

Hello all, we've noticed that performance on linux is much better when using 2 CPU's vs a single CPU with equal cores.

In our test we have 2 of these: Intel Xeon E5-2620 v4 2.1GHz - It has 8 physical cores + hyper threading

In our other system we have Intel Xeon Processor E5-2698 v3 2.3 GHZ - It has 16 physical cores + hyper threading.

Of note the 2 CPU's have the same amount of 'smart cache' as the single CPU (40 megs total)

Our tests are pretty all based on H264 and MPEG4 encoding, and in basically all tests the 2 CPU's come out about 20% faster than the single CPU.

Now - this is a linux question because when we do this on windows the results are much much closer, both slower - the 2 CPU's actually go slower and produce similar times as the single CPU.

Ideas what is going on here? I've thought cache but like I say the cache numbers match up pretty good.

Thanks for your time and comments

Edit: test systems are identical Dell R430's

Edit 2: I should have noted the encoding is CPU based, no hardware acceleration.

submitted by /u/winkmichael
[link] [comments]

Linux on HP Spectre x360 (late 2017 version with a gen8 CPU)?

Reddit - Sat, 2017-11-18 00:20

I want to buy this on BF. Have any of you tested it? Are there any major roadblocks?

submitted by /u/cocular
[link] [comments]

Tech Comics: Great Results

LinuxToday - Sat, 2017-11-18 00:00

 Datamation: Sometimes what's considered "great results" can be remarkably less than thrilling.

5 open source fonts ideal for programming

LXer - Fri, 2017-11-17 23:49
What is the best programming font? First, you need to consider that not all fonts are created equally. When choosing a font for casual reading, the reader expects the letters to smoothly flow into one another, giving an easy and enjoyable experience. A single character for a standard font is akin to puzzle piece designed to carefully mesh with every other part of the overall typeface.read more

today's leftovers

TuxMachines - Fri, 2017-11-17 23:25
  • Blockchain Moves Beyond its 'Moonshot' Phase
  • Some reading

    I've complained previously about disliking benchmarking. More generally, I'm not really a fan of performance analysis. I always feel like I get stuck at coming up with an approach to "it's going slower, why" beyond the basics. I watched a video of Brendan Gregg's talk from kernel recipes, and ended up going down the black hole1 of reading his well written blog. He does a fantastic job of explaining performance analysis concepts as well as the practical tools to do the analysis. He wrote a book several years ago and I happily ordered it. The book explains how to apply the USE method to performance problems across the system. This was helpful to me because it provides a way to generate a list of things to check and how to check them. It addresses the "stuck" feeling I get when dealing with performance problems. The book also provides a good high level overview of operating systems concepts. I'm always looking for references for people who are interested in kernels but don't know where to start and I think this book could fill a certain niche. Even if this book has been out for several years now, I was very excited to discover it.

  • Introducing container-diff, a tool for quickly comparing container images

    The Google Container Tools team originally built container-diff, a new project to help uncover differences between container images, to aid our own development with containers. We think it can be useful for anyone building containerized software, so we’re excited to release it as open source to the development community.

  • NATTT – A Modern Multi-Platform Time Conscious Tracker App

    It’s not that there aren’t already a lot of time tracker apps but my conscience wouldn’t let me sleep if I didn’t tell you about NATTT. So grab your cup of whatever you’re probably drinking as we delve into this app a little.

    NATTT is an acronym for “Not Another Time Tracking Tool”; a free and multi-platform app with which you can keep track of your work and how much you have spent at it.

  • Running Bitcoin node and ElectrumX server
  • todo.txt done
  • GNOME's Calendar & TODO Applications Are Looking Better For v3.28

    Adding to the growing list of changes for GNOME 3.28 are improvements to the Calendar and To Do applications by Georges Stavracas.

    Stavracas has been reworking the month view of GNOME Calendar and it's looking much better, some applications for Calendar via libdazzle, and more.

  • Compact DAQ systems offer a choice of 12- or 16-bit I/Os

    Advantech’s Linux-ready “MIC-1810” and “MIC-1816” DAQ computers offer 12- and 16-bit analog I/O, respectively, plus 24x DIOs, Intel CPUs, and 4x USB ports.

    Advantech’s MIC-1810 and MIC-1816 are digital acquisition computers that run Linux or Windows 7/8/10 on Intel 3rd Gen “Ivy Bridge” processors. If the aging CPU is a turn-off, keep in mind that many DAQ applications don’t require that much processing power, and perhaps Advantech’s “entry-level” label for the systems extends to the price, as well. The 165 x 130 x 59mm, DIN-rail mountable systems should also prove useful for environments with limited space.

read more

Security: New Release of HardenedBSD, Windows Leaks Details of Windows Back Doors

TuxMachines - Fri, 2017-11-17 23:24
  • Stable release: HardenedBSD-stable 11-STABLE v1100054
  • Kaspersky blames NSA hack on infected Microsoft software

    Embattled computer security firm Kaspersky Lab said Thursday that malware-infected Microsoft Office software and not its own was to blame for the hacking theft of top-secret US intelligence materials.

    Adding tantalizing new details to the cyber-espionage mystery that has rocked the US intelligence community, Kaspersky also said there was a China link to the hack.

  • Investigation Report for the September 2014 Equation malware detection incident in the US

    In early October, a story was published by the Wall Street Journal alleging Kaspersky Lab software was used to siphon classified data from an NSA employee’s home computer system. Given that Kaspersky Lab has been at the forefront of fighting cyberespionage and cybercriminal activities on the Internet for over 20 years now, these allegations were treated very seriously. To assist any independent investigators and all the people who have been asking us questions whether those allegations were true, we decided to conduct an internal investigation to attempt to answer a few questions we had related to the article and some others that followed it:

  • Kaspersky: Clumsy NSA leak snoop's PC was packed with malware

    Kaspersky Lab, the US government's least favorite computer security outfit, has published its full technical report into claims Russian intelligence used its antivirus tools to steal NSA secrets.

    Last month, anonymous sources alleged that in 2015, an NSA engineer took home a big bunch of the agency's cyber-weapons to work on them on his home Windows PC, which was running the Russian biz's antimalware software – kind of a compliment when you think about it. The classified exploit code and associated documents on the personal system were then slurped by Kremlin spies via his copy of Kaspersky antivirus, it was claimed.

read more

OSS Leftovers

TuxMachines - Fri, 2017-11-17 23:21
  • Open Source Networking Days: Think Globally, Collaborate Locally

    Something that we’ve learned at The Linux Foundation over the years is that there is just no substitute for periodic, in-person, face-to-face collaboration around the open source technologies that are rapidly changing our world. It’s no different for the open networking projects I work with as end users and their ecosystem partners grapple with the challenges and opportunities of unifying various open source components and finding solutions to accelerate network transformation. This fall, we decided to take The Linux Foundation networking projects (OpenDaylight, ONAP, OPNFV, and others) on the road to Europe and Japan by working with local site hosts and network operators to host Open Source Networking Days in Paris, Milan, Stockholm, London, Tel Aviv, and Yokohama.

  • The Open-Source Driving Simulator That Trains Autonomous Vehicles

    Self-driving cars are set to revolutionize transport systems the world over. If the hype is to be believed, entirely autonomous vehicles are about to hit the open road.

    The truth is more complex. The most advanced self-driving technologies work only in an extremely limited set of environments and weather conditions. And while most new cars will have some form of driver assistance in the coming years, autonomous cars that drive in all conditions without human oversight are still many years away.

    One of the main problems is that it is hard to train vehicles to cope in all situations. And the most challenging situations are often the rarest. There is a huge variety of tricky circumstances that drivers rarely come across: a child running into the road, a vehicle driving on the wrong side of the street, an accident immediately ahead, and so on.

  • Fun with Le Potato

    At Linux Plumbers, I ended up with a Le Potato SBC. I hadn't really had time to actually boot it up until now. They support a couple of distributions which seem to work fine if you flash them on. I mostly like SBCs for having actual hardware to test on so my interest tends to be how easily can I get my own kernel running.

    Most of the support is not upstream right now but it's headed there. The good folks at BayLibre have been working on getting the kernel support upstream and have a tree available for use until then.

  • PyConf Hyderabad 2017

    In the beginning of October, I attended a new PyCon in India, PyConf Hyderabad (no worries, they are working on the name for the next year). I was super excited about this conference, the main reason is being able to meet more Python developers from India. We are a large country, and we certainly need more local conferences

  • First Basilisk version released!

    This is the first public version of the Basilisk web browser, building on the new platform in development: UXP (code-named Möbius).

  • Pale Moon Project Rolls Out The Basilisk Browser Project

    The developers behind the Pale Moon web-browser that's been a long standing fork of Firefox have rolled out their first public beta release of their new "Basilisk" browser technology.

    Basilisk is their new development platform based on their (Gecko-forked) Goanna layout engine and the Unified UXL Platform (UXP) that is a fork of the Mozilla code-base pre-Servo/Rust... Basically for those not liking the direction of Firefox with v57 rolling out the Quantum changes, etc.

  • Best word processor for Mac [iophk: "whole article fails to mention OpenDocument Format"]
  • WordPress 4.9: This one's for you, developers!

    WordPress 4.9 has debuted, and this time the world's most popular content management system has given developers plenty to like.

    Some of the changes are arguably overdue: syntax highlighting and error checking for CSS editing and cutting custom HTML are neither scarce nor innovative. They'll be welcomed arrival will likely be welcomed anyway, as will newly-granular roles and permissions for developers. The new release has also added version 4.2.6 of MediaElement.js, an upgrade that WordPress.org's release notes stated has removed dependency on jQuery, improves accessibility, modernizes the UI, and fixes many bugs.”

  • New projects on Hosted Weblate
  • Cilk Plus Is Being Dropped From GCC

    Intel deprecated Cilk Plus multi-threading support with GCC 7 and now for GCC 8 they are looking to abandon this support entirely.

    Cilk Plus only had full support introduced in GCC 5 while now for the GCC 8 release early next year it's looking like it will be dropped entirely.

  • Software Freedom Law Center vs. Software Freedom Conservancy

    On November 3rd, the Software Freedom Conservancy (SFC) wrote a blog post to let people know that the Software Freedom Law Center (SFLC) had begun legal action against them (the SFC) over the trademark for their name.

  • What Is Teletype For Atom? How To Code With Fellow Developers In Real Time?

    In a short period of three years, GitHub’s open source code editor has become one of the most popular options around. In our list of top text editors for Linux, Atom was featured at #2. From time to time, GitHub keeps adding new features to this tool to make it even better. Just recently, with the help of Facebook, GitHub turned Atom into a full-fledged IDE.

    As GitHub is known to host some of the world’s biggest open source collaborative projects, it makes perfect sense to add the collaborative coding ability to Atom. To make this possible, “Teletype for Atom” has just been announced.

  • Microsoft Is Trying To Make Windows Subsystem For Linux Faster (WSL)
  • Microsoft and GitHub team up to take Git virtual file system to macOS, Linux

read more

Ubuntu: New Users, Unity Remix, 18.04 LTS News

TuxMachines - Fri, 2017-11-17 23:19
  • How to Get Started With the Ubuntu Linux Distro

    The Linux operating system has evolved from a niche audience to widespread popularity since its creation in the mid 1990s, and with good reason. Once upon a time, that installation process was a challenge, even for those who had plenty of experience with such tasks. The modern day Linux, however, has come a very long way. To that end, the installation of most Linux distributions is about as easy as installing an application. If you can install Microsoft Office or Adobe Photoshop, you can install Linux.

    Here, we’ll walk you through the process of installing Ubuntu Linux 17.04, which is widely considered one of the most user-friendly distributions. (A distribution is a variation of Linux, and there are hundreds and hundreds to choose from.)

  • An ‘Ubuntu Unity Remix’ Might Be on the Way…

    A new Ubuntu flavor that uses the Unity 7 desktop by default is under discussion. The plans have already won backing from a former Unity developer.

  • Ubuntu News: Get Firefox Quantum Update Now; Ubuntu 18.04 New Icon Theme Confirmed

    Earlier this week, Mozilla earned big praises in the tech world for launching its next-generation Firefox Quantum 57.0 web browser. The browser claims to be faster and better than market leader Google Chrome.

    Now, Firefox Quantum is available for all supported Ubuntu versions from the official repositories. The Firefox Quantum Update is also now available.

  • New Icon Theme Confirmed for Ubuntu 18.04 LTS

    ‘Suru’ is (apparently) going to be the default icon theme in Ubuntu 18.04 LTS. That’s Suru, the rebooted community icon theme and not Suru, the Canonical-created icon theme that shipped on the Ubuntu Phone (and was created by Matthieu James, who recently left Canonical).

read more

OnePlus 5T Launched

TuxMachines - Fri, 2017-11-17 23:17
  • OnePlus 5T Keeps the Headphone Jack, Introduces Face Unlock and Parallel Apps

    Five months after it launched its OnePlus 5 flagship Android smartphone, OnePlus unveiled today its successor, the OnePlus 5T, running the latest Android 8.0 (Oreo) mobile OS.

    OnePlus held a live event today in New York City to tell us all about the new features it implemented in the OnePlus 5T, and they don't disappoint as the smartphone features a gorgeous and bright 6.0-inches Optic AMOLED capacitive touchscreen with multitouch, a 1080x2160 pixels resolution, 18:9 ratio, and approximately 402 PPI density. The design has been changed a bit as well for OnePlus 5T, which is made of anodized aluminum.

  • OnePlus 5T Launched: Comes With Bigger Screen, Better Dual Camera, And Face Unlock

    Whenever costly phones like iPhone X or Google Pixel 2 are bashed (here and here) and their alternatives are discussed, OnePlus is always mentioned. In the past few years, the company has amassed a fan base that has found the concept of “Never Settle” impressive.

  •  

read more

5 DevOps leadership priorities in 2018

LinuxToday - Fri, 2017-11-17 23:00

Five key areas DevOps leaders and teams should strive to improve in the New Year.

Switching to Linux

Reddit - Fri, 2017-11-17 22:42

I'm thinking about switching to Linux for my primary OS. I'm tying to decide which distro to use. I have been using Kali in a virtual machine and love it, but I'm curious if there is something better out there. A large part of what I do for my job is IT administration for a small school. Are there any distros that specifically would be great for networking or an IT professional? Any input is appreciated.

submitted by /u/jonriddle33
[link] [comments]

Radeon VCN Encode Support Lands In Mesa 17.4 Git

Phoronix - Fri, 2017-11-17 22:30
It's an exciting day for open-source Radeon Linux users today as besides the AMDGPU DC pull request (albeit still unmerged as of writing), Radeon VCN encoding support has landed in Mesa Git...

Fedora 28 and Fedora 27

TuxMachines - Fri, 2017-11-17 22:10
  • Fedora 28 Hopes To Improve Linux Laptop Battery Life

    Red Hat's Hans de Goede is spearheading an effort to improve the Fedora battery life of laptops -- and should conserve power too for desktops running Fedora Workstation -- for the current Fedora 28 cycle.

  • Fedora 27 Atomic Host is available on multiple architectures

    The Fedora 27 Atomic Host now supports multiple architectures! Along with the x86_64 architecture, Atomic Host is also available on 64-bit ARM (aarch64) and PowerPC Little Endian (ppc64le). Both aarch64 and ppc64le architectures receive Atomic OSTree updates in the same way x86_64 does.

read more

Linux Action News 27

Reddit - Fri, 2017-11-17 22:09

How to Install and Use Docker on Linux

LXer - Fri, 2017-11-17 22:00
I’m going to demonstrate how easy it is to install Docker on Linux, as well as walking you through the first steps of working with Docker. I’ll be demonstrating on the Ubuntu 16.04 Server platform, but the process is very similar on most all Linux distributions.

adcli - Easy Way To Join RHEL/CentOS System To Active Directory Domain

LinuxToday - Fri, 2017-11-17 22:00

adcli is a command line tool that help us to integrate or join Linux systems such as RHEL & CentOS to Microsoft Windows Active Directory (AD) domain.

The - Hopefully - Final Stab At Intel Fastboot Support

Phoronix - Fri, 2017-11-17 21:48
Intel's Maarten Lankhorst has sent out what could be the final patches for enabling "fastboot" support by default within their DRM graphics driver...

KDE: KDE Applications 17.12, Akademy 2018, KDE Binary Factory

TuxMachines - Fri, 2017-11-17 21:37
  • KDE Applications 17.12 Sees Some New KF5 Ports, Other Apps Dropped

    The beta of KDE Applications 17.12 is now available ahead of next month's official debut for this quarterly update to the collection of official KDE programs.

    As previously covered, 17.12 is the point where only Qt5 / KDE Frameworks 5 apps will be included and any programs depending upon the older Qt4/KDE4 components will be dropped.

  • Applications 17.12 Pre-Beta available for testing with KDE neon Developer Stable branch edition

    Please join us in testing 17.12 pre-beta of KDE applications!

  • Akademy 2018 - Vienna, Austria - 11-17 August

    Vienna Calling! This is not only a song by the famous austrian singer Falco, but could also the motto for next years Akademy.

    In 2018 Akademy will be held at the University of Technology (TU Wien) in Vienna, Austria, from Saturday 11th to Friday 17th August.

    The conference is expected to draw hundreds of attendees from the global KDE Community to discuss and plan the future of the Community and its technology. Many participants from the broad free and open source software community, local organizations and software companies will also attend.

    Akademy 2018 is being organized together with Fachschaft Informatik (FSINF). Apart from representing and counseling computer science students, they engage in diverse political topics e.g. FOSS, Privacy and social justice.

  • CI for Windows installer and macOS bundle generation: KDE Binary Factory

    For some time now the KDE community has had a separate Continuous Integration system running which repeatedly generates Windows installers and macOS app bundles (DMG) for a specific subset of KDE projects.

  • /

read more

Pages

Subscribe to LinuxInsight aggregator