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More in Tux Machines

Postgresql service failed because the control process exited with an error code

PostgreSQL is a free and open-source, community-driven, standard-compliant, and most popular object-relational database management system. It is used by popular IT companies like Uber, Netflix, Instagram, Spotify, etc. Recently I installed PostgreSQL and getting an error while running daemon. This is mainly because PostgreSQL not getting sufficient permission to create the folder required to store database information. Read more

today's leftovers

  • Bob’s 2021 Tech Predictions: What a Difference a Pandemic Makes

    I predicted that IBM would dump a big division and essentially remake itself as Red Hat, its Linux company. Well yes and no. IBM did announce a major restructuring, spinning-off Global Technology Services just as I predicted (score one for me) but it has all happened slowly because everything slows down during a pandemic. The resulting company won’t be called Red Hat (yet), but the rest of it was correct so I’m going to claim this one, not that anybody cares about IBM anymore.

  • Robert Cringley Predicted 'The Death of IT' in 2020. Was He Right?
  • openSUSE Smiles

    There is no end to my amazement of the openSUSE community. They do such a fantastic job of making a wonderful distribution with all the tools that keep me productive. I am very thankful for the reliability I enjoy using openSUSE. The community members also do a great job of helping me through a jam, should I drive myself into one.

  • Retroarch for Android – The Complete Guide - Make Tech Easier

    The first thing you need to do, of course, is install Retroarch from the Play Store. Once you’ve done that, open Retroarch, and you’ll be presented with the main menu, which may mean absolutely nothing to you if you’re unfamiliar with Retroarch.

  • Considering Preparedness

    In short it is necessary to update your IT Disaster Recovery Plan if you are relying on resources physically based in the United States, I think. Nobody is quite sure what exactly is coming down the pike.

  • Junichi Uekawa: Yesterday was our monthly Debian meeting.

    Yesterday was our monthly Debian meeting. We do one every month for Tokyo and Kansai combined, because it's online and no reason to split for now. I presented what I learnt about nodejs packaging in Debian. This time, I started using Emacs for presentation, presenting PDF file. This week I switched most of my login shells to emacsclient, and experimenting.

  • WordPress Post Vs. Page

    Welcome back to the WordPress 101 series. In this series, we are discussing the basics of WordPress for new WordPress users. In this article, you’ll learn the differences between WordPress post vs. page. Often new users get confused between WordPress posts and pages. I remember my cousin created more than 10 pages before he realized he should’ve created posts, not pages. For new users, it may be difficult to understand why WordPress has two separate options to publish content. For them, one can create 200 pages instead of 200 posts and that should make no difference in how search engines see that content.

Programming Leftovers

  • GCC's Profile Guided Optimization Performance With The Ryzen 9 5950X - Phoronix

    Given the talk in prior days around patches for PGO'ing the Linux kernel and some readers not being familiar with Profile Guided Optimizations by code compilers, here are some fresh benchmarks on a Ryzen 9 5950X looking at the benefits of applying PGO optimizations to various benchmarks. We have benchmarked GCC and Clang PGO performance many times over the years with this just being some fresh data using a Ryzen 9 5950X and the latest software stack on Ubuntu 20.10. The testing was done by first running various open-source benchmarks without PGO, repeating the tests to generate profiles for the compiler to consume with PGO, and then benchmarking those PGO-enabled builds. These numbers are about best case scenarios given that with the testing for the PGO-enabled build, the benchmarks are repeated and thus matching well to the original profile. In more real-world, general purpose scenarios it can be more difficult generating an accurate profile for your actual workflow / software usage.

  • libsigsegv @ Savannah: libsigsegv 2.13 is released

    libsigsegv version 2.13 is released.

  • I told you so, 2021 edition

    You will recall that in 2004, which is now seventeen years ago, I wrote a document explaining why I made the design trade-offs that I did in XScreenSaver, and in that document I predicted this exact bug as my example of, "this is what will happen if you don't do it this way."

    And they went and made that happen.

    Repeatedly.

  • Jamie Zawinski Calls Cinnamon Screensaver Lock-Bypass Bug 'Unconscionable'

    Legendary programmer Jamie Zawinski has worked on everything from the earliest releases of the Netscape Navigator browser to XEmacs, Mozilla, and, of course, the XScreenSaver project.

  • Why and How to Use Java.util.stream.Collectors

    Streams are a wonderful feature in Java allowing you to write clean, efficient and powerful code. If you haven’t consumed the output of the stream, you will probably want to collect it. That’s when the methods from Java.util.stream.Collectors come to help.

Kernel and Graphics: exFAT, Linux 5.12, Mesa's Panfrost Gallium3D and Mesa 21.0

  • Linux's exFAT Driver Will Soon Be Able To Delete Big Files Much Faster - Phoronix

    For those making use of Linux's modern exFAT file-system, a significant optimization is on the way for when deleting files with the "dirsync" mount option set.  The exFAT file-system driver for Linux 5.12 should be able to delete (large) files much faster when running with the "dirsync" mount option set where the directory updates are done synchronously. 

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  • AMD + Older Intel CPUs To See Much Faster AES-NI XTS Crypto Performance On Linux 5.12 - Phoronix

    AMD processors along with older Intel processors will enjoy much faster AES-NI XTS crypto performance with the Linux 5.12 kernel this spring.  Processors supporting AES-NI instructions and that also are subject to Retpolines as part of their Spectre V2 mitigations will enjoy a big speed-up with AES-NI XTS for that next version of the Linux kernel. This includes past and current AMD processors as well as older Intel CPUs, but recent Intel processors do not need the return trampolines and thus not subject to this speed-up as they are not currently handicapped. 

  • Mesa's Lima Driver Finally Implements OpenGL Shader Cache Support - Phoronix

    While Mesa's Panfrost Gallium3D driver has been working out well for modern ARM Mali open-source graphics support, for the old Mali 400/450 series hardware there still is the "Lima" driver within Mesa that doesn't receive too much attention these days (just around 70 commits over the past year) but as its first work of 2021 saw an initial shader cache implementation.

  • Radeon Vulkan "RADV" Driver Saw Many Optimizations This Week For Mesa 21.0 - Phoronix

    Prior to Mesa 21.0 being branched this week in preparations for the quarterly stable Mesa3D release, a number of open-source Radeon Vulkan "RADV" driver optimizations were merged.