Towards a New Enlightenment? a Transcendent Decade
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Web Vmstat Any Distros, Especially Here’S Where Web Vmstat Comes Those Targeted at In
FOSSPICKS Sparkling gems and new releases from the world of FOSSpicks Free and Open Source Software Mike Saunders has spent a decade mining the internet for free software treasures. Here’s the result of his latest haul… Shiny statistics in a browser Web VMStat any distros, especially Here’s where Web VMStat comes those targeted at in. It’s a system monitor that runs Madvanced users, ship an HTTP server, so you can connect with shiny system monitoring tools to it via a web browser and see on the desktop. Conky is one such fancy CSS-driven charts. Before you tool, while GKrellM was all the rage install it, you’ll need to get the in the last decade, and they are websocketd utility, which you can genuinely useful for keeping tabs find at https://github.com/ on your boxes, especially when joewalnes/websocketd. Helpfully, you’re an admin in charge of the developer has made pre- various servers. compiled executables available, so Now, pretty much all major you can just grab the 32-bit or distros include a useful command 64-bit tarball, extract it and there line tool for monitoring system you have it: websocketd. (Of course, Here’s the standard output for vmstat – not very interesting, right? resource usage: vmstat. Enter if you’re especially security vmstat 1 in a terminal window and conscious, you can compile it from copy the aforementioned you’ll see a regularly updating (once its source code.) websocketd into the same place. per second) bunch of statistics, Next, clone the Web VMStat Git Then just enter: showing CPU usage, free RAM, repository (or grab the Zip file and ./run swap usage and so forth. -
The Gnome Bazaar How Gnome Gets Built and How We Can Improve
the gnome bazaar how gnome gets built and how we can improve daniel g. siegel 1. some serious stuff about my thesis 2. awesome gnome stuff how do foss projects work, which structures do they have and which workflows have they established. to accomplish this, several foss will be analyzed in order to identify concertedly models. in addition they will be compared to traditional software engineering models in order to see whether they are similar or oppose differences. good selection of projects with which the analysis is able to produce reliable and reasonable results • popularity • community • age ◦ communication • category ◦ number of developers • activity ◦ conferences ◦ releases ◦ foundations ◦ downloads ◦ ongoing projects ◦ commits project origin category Debian 1993 operating system Drupal 2001 content management system Fedora 2002 operating system GNOME 1997 desktop environment KDE 1996 desktop environment MySQL/MariaDB 1997 database management system PHP 1994 interpreted programming language Plone 1999 content management system PostgreSQL 1986 database management system Python 1989 interpreted programming language results 1 • history & origin 2 • community structure 3 • release process 4 • development model "[...] rather, the community seemed to resemble a great babbling bazaar of differing agendas and approaches" eric s. raymond what? comparison 1 • history & origin 2 • community structure 3 • release process 4 • development model history & origin • diverse origin • small group of founders • big burst of growth after first release • more big bursts before big releases community structure • very hierarchical • lead by leader or team • differences in hierachical structure • though easy to step up the ladder community structure: remarks • missing visionary • role of rt • unfruitful discussions release process • mostly fixed release cycles • lead by release manager/team • similar phases in all projects release process: remarks • cycle often too long for small projects • api/abi compatibility • jhbuild etc. -
Porting a Window Manager from Xlib to XCB
Porting a Window Manager from Xlib to XCB Arnaud Fontaine (08090091) 16 May 2008 Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version pub- lished by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License". Contents List of figures i List of listings ii Introduction 1 1 Backgrounds and Motivations 2 2 X Window System (X11) 6 2.1 Introduction . .6 2.2 History . .6 2.3 X Window Protocol . .7 2.3.1 Introduction . .7 2.3.2 Protocol overview . .8 2.3.3 Identifiers of resources . 10 2.3.4 Atoms . 10 2.3.5 Windows . 12 2.3.6 Pixmaps . 14 2.3.7 Events . 14 2.3.8 Keyboard and pointer . 15 2.3.9 Extensions . 17 2.4 X protocol client libraries . 18 2.4.1 Xlib . 18 2.4.1.1 Introduction . 18 2.4.1.2 Data types and functions . 18 2.4.1.3 Pros . 19 2.4.1.4 Cons . 19 2.4.1.5 Example . 20 2.4.2 XCB . 20 2.4.2.1 Introduction . 20 2.4.2.2 Data types and functions . 21 2.4.2.3 xcb-util library . 22 2.4.2.4 Pros . 22 2.4.2.5 Cons . 23 2.4.2.6 Example . 23 2.4.3 Xlib/XCB round-trip performance comparison . -
Part II, Window Managers and Desktop Environments
Part II Window Managers and Desktop Environments The window manager is responsible for managing application windows and application- independent behavior, such as pop-up menus appearing in the background. The window manager manages the placement, borders, and decorations of all windows, and is responsible for the look and feel of your particular X session. Desktop environments typically include an integrated window manager, some sort of control panel, applications, and a consistent look and feel across applications. The chapters in Part II, Window Managers and Desktop Environments, are: Overview This chapter provides a conceptual introduction to window managers and desktop environments and briefly surveys some of the many window managers and desktop environments available for Linux. FVWM FVWM is a traditional window manager for Linux systems. It is now into its second major version, FVWM2. Window Maker Window Maker is an elegant X11 window manager designed to give integration support to GNUstep-based applications. It emulates the look and feel of OpenStep, the NeXTSTEP GUI. Enlightenment Enlightenment, often shortened to just E, may be the most elaborate and bizarre window manager available. Enlightenment’s motto, “time to rethink everything,” provides a good indication of the uniqueness and flashiness behind Enlightenment. Using GNOME GNOME, which stands for GNU Network Object Model Environment, is a freely available desktop environment that can be used with any of several window managers, including Enlightenment and Sawfish. Using KDE KDE, the K Desktop Environment, is another freely available desktop environment. KDE includes an assortment of games and utilities, as well as an integrated suite of office productivity applications.. -
Easy Slackware
1 Создание легкой системы на базе Slackware I - Введение Slackware пользуется заслуженной популярностью как классический linux дистрибутив, и поговорка "кто знает Red Hat тот знает только Red Hat, кто знает Slackware тот знает linux" несмотря на явный снобизм поклонников "бога Патре га" все же имеет под собой основания. Одним из преимуществ Slackware является возможность простого создания на ее основе практически любой системы, в том числе быстрой и легкой десктопной, о чем далее и пойдет речь. Есть дис трибутивы, клоны Slackware, созданные именно с этой целью, типа Аbsolute, но все же лучше создавать систему под себя, с максимальным учетом именно своих потребностей, и Slackware пожалуй как никакой другой дистрибутив подходит именно для этой цели. Легкость и быстрота системы определяется выбором WM (DM) , набором программ и оптимизацией программ и системы в целом. Первое исключает KDE, Gnome, даже новые версии XFCЕ, остается разве что LXDE, но набор программ в нем совершенно не устраивает. Оптимизация наиболее часто используемых про грамм и нескольких базовых системных пакетов осуществляется их сборкой из сорцов компилятором, оптимизированным именно под Ваш комп, причем каж дая программа конфигурируется исходя из Ваших потребностей к ее возможно стям. Оптимизация системы в целом осуществляется ее настройкой согласно спе цифическим требованиям к десктопу. Такой подход был выбран по банальной причине, возиться с gentoo нет ни какого желания, комп все таки создан для того чтобы им пользоваться, а не для компиляции программ, в тоже время у каждого есть минимальный набор из не большого количества наиболее часто используемых программ, на которые стоит потратить некоторое, не такое уж большое, время, чтобы довести их до ума. Кро ме того, такой подход позволяет иметь самые свежие версии наиболее часто ис пользуемых программ. -
Introduction to the Enlightenment Foundation Libraries
Introduction to the Enlightenment foundation libraries. An overview of EFL Kostis Kapelonis Introduction to the Enlightenment foundation libraries.: An overview of EFL Kostis Kapelonis Abstract The target audience of this document are UNIX programmers who are interested in the Enlightenment Foundation Libraries (EFL). You must already know C programming. You will not however learn how to program using the EFL. Instead, you will learn why you should program with the EFL. If you ever wanted to evaluate the EFL but did not see any advantages over previous graphic libraries then this document is for you! Table of Contents 1. Introduction ............................................................................................................................1 A little History ...................................................................................................................1 Related documentation ......................................................................................................... 2 Obtaining the EFL libraries ................................................................................................... 2 2. The EFL structure .................................................................................................................... 4 Organization of the Libraries ................................................................................................. 4 Brief description of each EFL library ...................................................................................... 5 3. -
Basic Statistics Range, Mean, Median, Mode, Variance, Standard Deviation
Kirkup Chapter 1 Lecture Notes SEF Workshop presentation = Science Fair Data Analysis_Sohl.pptx EDA = Exploratory Data Analysis Aim of an Experiment = Experiments should have a goal. Make note of interesting issues for later. Be careful not to get side-tracked. Designing an Experiment = Put effort where it makes sense, do preliminary fractional error analysis to determine where you need to improve. Units analysis and equation checking Units website Writing down values: scientific notation and SI prefixes http://en.wikipedia.org/wiki/Metric_prefix Significant Figures Histograms in Excel Bin size – reasonable round numbers 15-16 not 14.8-16.1 Bin size – reasonable quantity: Rule of Thumb = # bins = √ where n is the number of data points. Basic Statistics range, mean, median, mode, variance, standard deviation Population, Sample Cool trick for small sample sizes. Estimate this works for n<12 or so. √ Random Error vs. Systematic Error Metric prefixes m n [n 1] Prefix Symbol 1000 10 Decimal Short scale Long scale Since 8 24 yotta Y 1000 10 1000000000000000000000000septillion quadrillion 1991 7 21 zetta Z 1000 10 1000000000000000000000sextillion trilliard 1991 6 18 exa E 1000 10 1000000000000000000quintillion trillion 1975 5 15 peta P 1000 10 1000000000000000quadrillion billiard 1975 4 12 tera T 1000 10 1000000000000trillion billion 1960 3 9 giga G 1000 10 1000000000billion milliard 1960 2 6 mega M 1000 10 1000000 million 1960 1 3 kilo k 1000 10 1000 thousand 1795 2/3 2 hecto h 1000 10 100 hundred 1795 1/3 1 deca da 1000 10 10 ten 1795 0 0 1000 -
Volume 128 September, 2017
Volume 128 September, 2017 Solving The Case Of The GIMP Tutorial: Awful Laptop Keyboard Exploring G'MIC Word Processing With LaTeX Tip Top Tips: Slow KDE (A Real World Example) Applications Open/Save Dialogs Workaround Playing Villagers And Repo Review: Heroes On PCLinuxOS Focus Writer PCLinuxOS Family Member Lumina Desktop Spotlight: plankton172 Customization 2017 Total Solar Eclipse PCLinuxOS Magazine Wows North America Page 1 Table Of Contents 3 From The Chief Editor's Desk ... 5 2017 Solar Eclipse Wows North America The PCLinuxOS name, logo and colors are the trademark of 9 ms_meme's Nook: PCLinuxOS Melody Texstar. 10 Solving The Case Of The The PCLinuxOS Magazine is a monthly online publication containing PCLinuxOS-related materials. It is published Awful Laptop Keyboard primarily for members of the PCLinuxOS community. The magazine staff is comprised of volunteers from the 13 Screenshot Showcase PCLinuxOS community. 14 Lumina Desktop Configuration 25 Screenshot Showcase Visit us online at http://www.pclosmag.com 26 PCLinuxOS Family Member Spotlight: This release was made possible by the following volunteers: plankton172 Chief Editor: Paul Arnote (parnote) Assistant Editor: Meemaw 27 Screenshot Showcase Artwork: Timeth, ms_meme, Meemaw Magazine Layout: Paul Arnote, Meemaw, ms_meme 28 GIMP Tutorial: Exploring G'MIC HTML Layout: YouCanToo 30 Screenshot Showcase Staff: 31 ms_meme's Nook: ms_meme phorneker Meemaw YouCanToo Everything's Gonna Be All Right Gary L. Ratliff, Sr. Pete Kelly Agent Smith Cg Boy 32 Word Processing With LaTeX daiashi Smileeb (A Real World Example) 45 Repo Review: Focus Writer Contributors: 46 Screenshot Showcase dm+ 47 Playing Villagers and Heroes in PCLinuxOS 50 PCLinuxOS Recipe Corner 51 Screenshot Showcase The PCLinuxOS Magazine is released under the Creative Commons Attribution-NonCommercial-Share-Alike 3.0 52 Tip Top Tips: Slow KDE Application Unported license. -
Frequency Response and Bode Plots
1 Frequency Response and Bode Plots 1.1 Preliminaries The steady-state sinusoidal frequency-response of a circuit is described by the phasor transfer function Hj( ) . A Bode plot is a graph of the magnitude (in dB) or phase of the transfer function versus frequency. Of course we can easily program the transfer function into a computer to make such plots, and for very complicated transfer functions this may be our only recourse. But in many cases the key features of the plot can be quickly sketched by hand using some simple rules that identify the impact of the poles and zeroes in shaping the frequency response. The advantage of this approach is the insight it provides on how the circuit elements influence the frequency response. This is especially important in the design of frequency-selective circuits. We will first consider how to generate Bode plots for simple poles, and then discuss how to handle the general second-order response. Before doing this, however, it may be helpful to review some properties of transfer functions, the decibel scale, and properties of the log function. Poles, Zeroes, and Stability The s-domain transfer function is always a rational polynomial function of the form Ns() smm as12 a s m asa Hs() K K mm12 10 (1.1) nn12 n Ds() s bsnn12 b s bsb 10 As we have seen already, the polynomials in the numerator and denominator are factored to find the poles and zeroes; these are the values of s that make the numerator or denominator zero. If we write the zeroes as zz123,, zetc., and similarly write the poles as pp123,, p , then Hs( ) can be written in factored form as ()()()s zsz sz Hs() K 12 m (1.2) ()()()s psp12 sp n 1 © Bob York 2009 2 Frequency Response and Bode Plots The pole and zero locations can be real or complex. -
Remote Desktop and Fedora
Remote Desktop & Fedora Flock 2015 Presented by Mike DePaulo mikedep333 License: CC BY 3.0 What this talk is NOT about VDI Remote Desktop Server Integrated into hypervisor (SPICE/VNC in KVM, VMware View) Remote Desktop Server running in guest, but still tied to hypervisor (QVD, Citrix) What this talk IS about Remote Desktop = multiple solutions/protocols, not Microsoft RDP specifically Can run on physical desktop, server, cloud instance, even containers TigerVNC, X2Go and SPICE X11 itself provides “remote display”, but I do not consider it to be “remote desktop” because it lacks: session resume other needed desktop features like audio X2Go Server Quick-Start Install packages X2goserver X2goserver-xsession Install compatible DE such as: MATE, XFCE, LXDE, KDE4 Enable service: x2gocleansessions Enable service: sshd TigerVNC Quick Start Install package Tigervnc-server Install one of the DE's listed in /etc/X11/xinit/Xclients GNOME MATE KDE LXDE vncserver -autokill -SecurityTypes=VeNCrypt,TLSPlain -PlainUsers=$USER -pam_service login -desktop $HOSTNAME You will see a display number like :2 Today's Topics 1. Different Features 2. Demo 3. Integration 4. Penetrating the corporate desktop market 5.Future Different Features (1) Feature TigerVNC X2Go SPICE WAN Compression Compression & Compression & Performance Caching Caching Clipboard Yes Yes Yes Sharing Audio No Yes Yes File Transfers No Yes (Folder Yes (Drag & Drop) Sharing) Printer Sharing No Yes Yes (WIP) Client OSs Linux, Windows, Linux, Windows, Linux, Windows OS X, mobile Mac OS X (non-tiger) -
Standard for Terminology V2
Joint Monitoring Programme for Ambient Noise North Sea 2018 – 2020 Standard for Terminology WP 3 Deliverable/Task: 3.1 Authors: L. Wang, S Robinson Affiliations: NPL Version 2.0 Date: March 2020 INTERREG North Sea Region Jomopans Project Full Title Joint Monitoring Programme for Ambient Noise North Sea Project Acronym Jomopans Programme Interreg North Region Programme Programme Priority Priority 3 Sustainable North Sea Region Colophon Name Niels Kinneging (Project Manager) Organization Name Rijkswaterstaat Email [email protected] Phone +31 6 5321 5242 This report should be cited: JOMOPANS standard: Terminology for ambient ocean noise monitoring Cover picture: UK Crown copyright 2 INTERREG North Sea Region Jomopans Table of contents 1 General acoustic terms ......................................................................................................... 5 1.1 Definitions of basic quantities and metrics ............................................................................ 5 1.2 Levels used in underwater acoustics ...................................................................................11 2 Metrics for ambient noise monitoring in JOMOPANS ..........................................................14 2.1 Metrics for use in JOMOPANS ............................................................................................14 2.2 Other common metrics not used in JOMOPANS .................................................................14 3 Terminology used in acoustic modelling ..............................................................................15 -
A Brief History of GNOME
A Brief History of GNOME Jonathan Blandford <[email protected]> July 29, 2017 MANCHESTER, UK 2 A Brief History of GNOME 2 Setting the Stage 1984 - 1997 A Brief History of GNOME 3 Setting the stage ● 1984 — X Windows created at MIT ● ● 1985 — GNU Manifesto Early graphics system for ● 1991 — GNU General Public License v2.0 Unix systems ● 1991 — Initial Linux release ● Created by MIT ● 1991 — Era of big projects ● Focused on mechanism, ● 1993 — Distributions appear not policy ● 1995 — Windows 95 released ● Holy Moly! X11 is almost ● 1995 — The GIMP released 35 years old ● 1996 — KDE Announced A Brief History of GNOME 4 twm circa 1995 ● Network Transparency ● Window Managers ● Netscape Navigator ● Toolkits (aw, motif) ● Simple apps ● Virtual Desktops / Workspaces A Brief History of GNOME 5 Setting the stage ● 1984 — X Windows created at MIT ● 1985 — GNU Manifesto ● Founded by Richard Stallman ● ● 1991 — GNU General Public License v2.0 Our fundamental Freedoms: ○ Freedom to run ● 1991 — Initial Linux release ○ Freedom to study ● 1991 — Era of big projects ○ Freedom to redistribute ○ Freedom to modify and ● 1993 — Distributions appear improve ● 1995 — Windows 95 released ● Also, a set of compilers, ● 1995 — The GIMP released userspace tools, editors, etc. ● 1996 — KDE Announced This was an overtly political movement and act A Brief History of GNOME 6 Setting the stage ● 1984 — X Windows created at MIT “The licenses for most software are ● 1985 — GNU Manifesto designed to take away your freedom to ● 1991 — GNU General Public License share and change it. By contrast, the v2.0 GNU General Public License is intended to guarantee your freedom to share and ● 1991 — Initial Linux release change free software--to make sure the ● 1991 — Era of big projects software is free for all its users.