Chrome OS Internals
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Open Source Used in Influx1.8 Influx 1.9
Open Source Used In Influx1.8 Influx 1.9 Cisco Systems, Inc. www.cisco.com Cisco has more than 200 offices worldwide. Addresses, phone numbers, and fax numbers are listed on the Cisco website at www.cisco.com/go/offices. Text Part Number: 78EE117C99-1178791953 Open Source Used In Influx1.8 Influx 1.9 1 This document contains licenses and notices for open source software used in this product. With respect to the free/open source software listed in this document, if you have any questions or wish to receive a copy of any source code to which you may be entitled under the applicable free/open source license(s) (such as the GNU Lesser/General Public License), please contact us at [email protected]. In your requests please include the following reference number 78EE117C99-1178791953 Contents 1.1 golang-protobuf-extensions v1.0.1 1.1.1 Available under license 1.2 prometheus-client v0.2.0 1.2.1 Available under license 1.3 gopkg.in-asn1-ber v1.0.0-20170511165959-379148ca0225 1.3.1 Available under license 1.4 influxdata-raft-boltdb v0.0.0-20210323121340-465fcd3eb4d8 1.4.1 Available under license 1.5 fwd v1.1.1 1.5.1 Available under license 1.6 jaeger-client-go v2.23.0+incompatible 1.6.1 Available under license 1.7 golang-genproto v0.0.0-20210122163508-8081c04a3579 1.7.1 Available under license 1.8 influxdata-roaring v0.4.13-0.20180809181101-fc520f41fab6 1.8.1 Available under license 1.9 influxdata-flux v0.113.0 1.9.1 Available under license 1.10 apache-arrow-go-arrow v0.0.0-20200923215132-ac86123a3f01 1.10.1 Available under -
Buildbot Documentation Release 1.6.0
Buildbot Documentation Release 1.6.0 Brian Warner Nov 17, 2018 Contents 1 Buildbot Tutorial 3 1.1 First Run.................................................3 1.2 First Buildbot run with Docker......................................6 1.3 A Quick Tour...............................................9 1.4 Further Reading............................................. 17 2 Buildbot Manual 23 2.1 Introduction............................................... 23 2.2 Installation................................................ 29 2.3 Concepts................................................. 41 2.4 Secret Management........................................... 50 2.5 Configuration............................................... 53 2.6 Customization.............................................. 251 2.7 Command-line Tool........................................... 278 2.8 Resources................................................. 289 2.9 Optimization............................................... 289 2.10 Plugin Infrastructure in Buildbot..................................... 289 2.11 Deployment............................................... 290 2.12 Upgrading................................................ 292 3 Buildbot Development 305 3.1 Development Quick-start......................................... 305 3.2 General Documents........................................... 307 3.3 APIs................................................... 391 3.4 Python3 compatibility.......................................... 484 3.5 Classes................................................. -
Status Update on PCI Express Support in Qemu
Status Update on PCI Express Support in QEmu Isaku Yamahata, VA Linux Systems Japan K.K. <[email protected]> Xen Summit North America April 28, 2010 Agenda ● Introduction ● Usage and Example ● Implementation Details ● Future Work ● Considerations on further development issues Introduction From http://en.wikipedia.org/wiki/PCI_Express PCI Express native Hotplug Electro Mechanical Lock(EMI) Slot Number From http://docs.hp.com/ Eventual Goal Dom0 qemu-dm interrupt root DomU Inject the error up Virtual PCIe Bus down Interrupt to notify the error Xen VMM hardware PCI express bus PCI Express root port PCI Express upstream port PCI Express Error Message native passthrough PCI Express downstream port With native hot plug support Error PCI Express device Eventual Goal ● More PCI features/PCI express features – The current emulated chipset(I440FX/PIIX3) is too old. – So new Chipset emulator is wanted. ● Xen PCI Express support – PCI Express native hotplug – PCI Express native passthourgh ● When error is detected via AER(Advanced Error Reporting), inject the error into the guest. ● these require several steps, so the first step is... First Phase Goal ● Make Qemu PCI Express ready – Introduce new chipset emulator(Q35) ● PCI Express native hot plug ● Implement PCI Express port emulators, and make it possible to inject errors into guest Current status Qemu/PCI express ● PCIe MMCONFIG Merged. the qemu/guest Q35 chipset base working PCIe portemulator working PCIe native hotplug working firmware PCIe AER WIP PCIe error injection WIP VBE paravirtualization working enhancement is seabios mcfg working almost done. e820 working host bridge initiazatlin working ● pci io/memory The next step is space initialization working passing acpi table outside qemu working qemu upstream vgabios VBE paravirtualization working merge. -
Preview Dart Programming Tutorial
Dart Programming About the Tutorial Dart is an open-source general-purpose programming language. It is originally developed by Google and later approved as a standard by ECMA. Dart is a new programming language meant for the server as well as the browser. Introduced by Google, the Dart SDK ships with its compiler – the Dart VM. The SDK also includes a utility -dart2js, a transpiler that generates JavaScript equivalent of a Dart Script. This tutorial provides a basic level understanding of the Dart programming language. Audience This tutorial will be quite helpful for all those developers who want to develop single-page web applications using Dart. It is meant for programmers with a strong hold on object- oriented concepts. Prerequisites The tutorial assumes that the readers have adequate exposure to object-oriented programming concepts. If you have worked on JavaScript, then it will help you further to grasp the concepts of Dart quickly. Copyright & Disclaimer © Copyright 2017 by Tutorials Point (I) Pvt. Ltd. All the content and graphics published in this e-book are the property of Tutorials Point (I) Pvt. Ltd. The user of this e-book is prohibited to reuse, retain, copy, distribute or republish any contents or a part of contents of this e-book in any manner without written consent of the publisher. We strive to update the contents of our website and tutorials as timely and as precisely as possible, however, the contents may contain inaccuracies or errors. Tutorials Point (I) Pvt. Ltd. provides no guarantee regarding the accuracy, timeliness or completeness of our website or its contents including this tutorial. -
What Is Dart?
1 Dart in Action By Chris Buckett As a language on its own, Dart might be just another language, but when you take into account the whole Dart ecosystem, Dart represents an exciting prospect in the world of web development. In this green paper based on Dart in Action, author Chris Buckett explains how Dart, with its ability to either run natively or be converted to JavaScript and coupled with HTML5 is an ideal solution for building web applications that do not need external plugins to provide all the features. You may also be interested in… What is Dart? The quick answer to the question of what Dart is that it is an open-source structured programming language for creating complex browser based web applications. You can run applications created in Dart by either using a browser that directly supports Dart code, or by converting your Dart code to JavaScript (which happens seamlessly). It is class based, optionally typed, and single threaded (but supports multiple threads through a mechanism called isolates) and has a familiar syntax. In addition to running in browsers, you can also run Dart code on the server, hosted in the Dart virtual machine. The language itself is very similar to Java, C#, and JavaScript. One of the primary goals of the Dart developers is that the language seems familiar. This is a tiny dart script: main() { #A var d = “Dart”; #B String w = “World”; #C print(“Hello ${d} ${w}”); #D } #A Single entry point function main() executes when the script is fully loaded #B Optional typing (no type specified) #C Static typing (String type specified) #D Outputs “Hello Dart World” to the browser console or stdout This script can be embedded within <script type=“application/dart”> tags and run in the Dartium experimental browser, converted to JavaScript using the Frog tool and run in all modern browsers, or saved to a .dart file and run directly on the server using the dart virtual machine executable. -
Google Security Chip H1 a Member of the Titan Family
Google Security Chip H1 A member of the Titan family Chrome OS Use Case [email protected] Block diagram ● ARM SC300 core ● 8kB boot ROM, 64kB SRAM, 512kB Flash ● USB 1.1 slave controller (USB2.0 FS) ● I2C master and slave controllers ● SPI master and slave controllers ● 3 UART channels ● 32 GPIO ports, 28 muxed pins ● 2 Timers ● Reset and power control (RBOX) ● Crypto Engine ● HW Random Number Generator ● RD Detection Flash Memory Layout ● Bootrom not shown ● Flash space split in two halves for redundancy ● Restricted access INFO space ● Header fields control boot flow ● Code is in Chrome OS EC repo*, ○ board files in board/cr50 ○ chip files in chip/g *https://chromium.googlesource.com/chromiumos/platform/ec Image Properties Chip Properties 512 byte space Used as 128 FW Updates INFO Space Bits 128 Bits Bitmap 32 Bit words Board ID 32 Bit words Bitmap Board ID ● Updates over USB or TPM Board ID Board ID ~ Board ID ● Rollback protections Board ID mask Version Board Flags ○ Header versioning scheme Board Flags ○ Flash map bitmap ● Board ID and flags Epoch ● RO public key in ROM Major ● RW public key in RO Minor ● Both ROM and RO allow for Timestamp node locked signatures Major Functions ● Guaranteed Reset ● Battery cutoff ● Closed Case Debugging * ● Verified Boot (TPM Services) ● Support of various security features * https://www.chromium.org/chromium-os/ccd Reset and power ● Guaranteed EC reset and battery cutoff ● EC in RW latch (guaranteed recovery) ● SPI Flash write protection TPM Interface to AP ● I2C or SPI ● Bootstrap options ● TPM -
Gerrit J.J. Van Den Burg, Phd London, UK | Email: [email protected] | Web: Gertjanvandenburg.Com
Gerrit J.J. van den Burg, PhD London, UK | Email: [email protected] | Web: gertjanvandenburg.com Summary I am a research scientist with a PhD in machine learning and 8+ years of experience in academic research. I am currently looking to transition to industry to work on complex, large-scale problems that can have a positive real-world impact. I have extensive experience with machine learning modeling, algorithm design, and software engineering in Python, C, and R. My goal is to use my expertise and technical skills to address ongoing research challenges in machine learning and AI. Research Experience Postdoctoral Researcher — The Alan Turing Institute, UK 2018–2021 • Introduced a memorization score for probabilistic deep generative models and showed that neural networks can remember part of their input data, which has important implications for data privacy • Created a method for structure detection in textual data files that improved on the Python builtin method by 21%. Developed this into a Python package that has received over 600,000 downloads • Developed a robust Bayesian matrix factorization algorithm for time series modeling and forecasting that improved imputation error up to 60% while maintaining competitive runtime • Established the first benchmark dataset for change point detection on general real-world time series and determined the best performing methods, with consequences for research and practice • Collaborated with other researchers to design a unified interface for AI-powered data cleaning tools Doctoral Researcher -
Best Practices for Developing for Chromebook Tablets
1 Best practices for developing for Chromebook tablets The goal of this guide is to share some best practices for developing Android and web apps for Chromebook tablets. With the help of educators and developers around the globe, we’ve learned some tips and tricks along the way and want to share those with you and your team. Chromebook tablets come in many different shapes and sizes and run all sorts of software—from traditional websites to extensions, progressive web apps, and Android apps. In many ways, Chromebook tablets operate the same as a traditional Chromebook. The operating system is largely the same. They’re managed the same and run the same apps. Educators tell us that the smaller and lighter form of the tablet and no built-in mouse or keyboard changes how they and students use the device. For example: ● Many schools use tablets in early elementary, special education, and media classes where entering text, typing, and testing are less prevalent. ● Tablets are more conducive to handwriting notes, reading, filming, photography, and touchscreen apps than traditional laptops. ● Some schools prefer to use Android apps with tablets (because they’re designed for touchscreens) instead of using websites (usually designed for a mouse). This guide aims to help you adapt your apps to support these differences. Best practice 1: Google Drive integration One of the things that has made Chromebooks and Chromebook tablets so successful in schools over the years is that students can sign in to any device and access their files anywhere, anytime—such is the nature of the web! Android apps tend to work a little differently because they run natively (offline). -
Google Chrome OS VS Distribuciones GNU/Linux 18
1Google Chrome OS Universidad Católica “Nuestra Señora de la Asunción” Facultad de Ciencias y Tecnología Departamento de Ingeniería Electrónica e Informática TAI 2 Chrome OS Fernando Cardozo [email protected] Mat:51300 Prof: Ing Juan Urraza Asunción – Paraguay 2010 2Google Chrome OS Índice Introducción 4 Un nuevo modelo 5 Kernel 6 Arquitectura del software 6 El sistema en sí y los servicios 7 El navegador y el administrador de ventanas 8 Sistema de archivos 8 Diagrama del proceso de booteo 9 Requerimientos del hardware 10 Seguridad en el Chrome OS 10 Interfaz del usuario 11 Pestaña de aplicaciones 12 Panel 13 Multiples ventanas 14 Como se sincroniza Chrome en la nube 15 Google Cloud Printing 16 Chromoting 17 Chrome OS vs Windows 18 Google Chrome OS VS Distribuciones GNU/Linux 18 Cuestionamientos 19 Cuestionamientos 20 Proyectos similares 21 3Google Chrome OS Proyectos similares 22 Anexo 23 Conclusión 24 Referencias 25 4Google Chrome OS Introducción Google Chrome OS es un proyecto llevado a cabo por la compañía Google para desarrollar un sistema operativo basado en web. A través de su blog oficial, Google anunció el 7 de julio de 2009 que Google Chrome OS será un sistema realizado con base en código abierto (Núcleo Linux) y orientado inicialmente para mini portátiles, estando disponible en el segundo semestre de 2010. Funcionará sobre microprocesadores con tecnología x86 o ARM.. La compañía Google ha declarado que el código fuente del proyecto Google Chrome OS fue liberado a finales de 2009. Aunque el sistema se basa en un kernel Linux, tendrá un gestor de ventanas propio de Google. -
Introduction Use Runit with Traditional Init (Sysvinit)
2021/07/26 19:10 (UTC) 1/12 Runit Runit Introduction runit is a UNIX init scheme with service supervision. It is a cross-platform Unix init scheme with service supervision, a replacement for sysvinit, and other init schemes and supervision that are used with the traditional init. runit is compatible with djb's daemontools. In Unix-based computer operating systems, init (short for initialization) is the first process started during booting of the computer system. Init is a daemon process that continues running until the system is shut down. Slackware comes with its own legacy init (/sbin/init) from the sysvinit package, that used to be included in almost all other major Linux distributions. The init daemon (or its replacement) is characterised by Process ID 1 (PID 1). To read on the benefits of runit, see here: http://smarden.org/runit/benefits.html * Unless otherwise stated, all commands in this article are to be run by root. Use runit with traditional init (sysvinit) runit is not provided by Slackware, but a SlackBuild is maintained on https://slackbuilds.org/. It does not have any dependencies. As we do not want yet to replace init with runit, run the slackbuild with CONFIG=no: CONFIG=no ./runit.SlackBuild Then install the resulting package and proceed as follows: mkdir /etc/runit/ /service/ cp -a /usr/doc/runit-*/etc/2 /etc/runit/ /sbin/runsvdir-start & Starting via rc.local For a typical Slackware-stlyle service, you can edit /etc/rc.d/rc.local file if [ -x /sbin/runsvdir-start ]; then /sbin/runsvdir-start & fi and then edit write /etc/rc.d/rc.local_shutdown #!/bin/sh SlackDocs - https://docs.slackware.com/ Last update: 2020/05/06 08:08 (UTC) howtos:slackware_admin:runit https://docs.slackware.com/howtos:slackware_admin:runit RUNIT=x$( /sbin/pidof runsvdir ) if [ "$RUNIT" != x ]; then kill $RUNIT fi Then give rc.local_shutdown executive permission: chmod +x /etc/rc.d/rc.local_shutdown and reboot Starting via inittab (supervised) Remove the entries in /etc/rc.d/rc.local and /etc/rc.d/rc.local_shutdown described above. -
Lexia Core5 Tech Reqs
EXPANDED Lexia Customer Support SYSTEM 21 LEVELS [email protected] US: 800-507-2772; Outside US: 978-405-6231 System Requirements Web Version: www.lexiacore5.com For all browsers and platforms REQUIREMENTS Operating Systems and Browsers • Headsets (recommended) 1024x768 screen resolution (recommended) MacOS • • 10.12+ • 4 GB RAM (recommended), 2 GB (minimum) • Chrome 64+, Safari 10+, Firefox 62+ • Javascript must be enabled Persistent Internet connection (required) Windows • • Windows 7+ • Bandwidth: A typical student consumes 15MB of • Chrome 64+, Edge 44+, Firefox 62+ bandwidth per 5-min block (average rate ~0.4 Mbps). A classroom of 25 students consumes 750MB of band- Google Chrome OS width per 30-min session (average rate ~3.33 Mbps). 74+ • Bandwidth need is typically higher just after students • Chromebook, Chromebook Touchscreen log in and decreases after a few minutes of use. A 6MB download occurs upon logging into the Core5 product. iPad Version • iPad 4+, iPad Mini 3+, iPad Air+, iPad Pro (iOS 10+) • 1.9 GB storage space (1.65 GB for initial download) • Persistent Internet connection (minimal bandwidth is used) myLexia.com (the educator website) myLexia for iOS Chrome 64+, Edge 44+, Firefox 62+, Safari 11+ • iPhone, and iPod Touch with iOS 11.0+ • Apple Watch with watchOS 4.0+ Whitelisting, Firewall, Proxies, Content Filtering—Allow Access https://*.mylexia.com http://www.lexiacore5.com .salesforceliveagent.com (required only to use myLexia Support Chat) Note: Thin clients, Citrix, Terminal Services/Remote Desktop, virtual machines, and other remote access or PC-sharing systems are not supported. P-C5-21-SYS-0919 © 2019 Lexia Learning, a Rosetta Stone Company. -
Mac OS X: an Introduction for Support Providers
Mac OS X: An Introduction for Support Providers Course Information Purpose of Course Mac OS X is the next-generation Macintosh operating system, utilizing a highly robust UNIX core with a brand new simplified user experience. It is the first successful attempt to provide a fully-functional graphical user experience in such an implementation without requiring the user to know or understand UNIX. This course is designed to provide a theoretical foundation for support providers seeking to provide user support for Mac OS X. It assumes the student has performed this role for Mac OS 9, and seeks to ground the student in Mac OS X using Mac OS 9 terms and concepts. Author: Robert Dorsett, manager, AppleCare Product Training & Readiness. Module Length: 2 hours Audience: Phone support, Apple Solutions Experts, Service Providers. Prerequisites: Experience supporting Mac OS 9 Course map: Operating Systems 101 Mac OS 9 and Cooperative Multitasking Mac OS X: Pre-emptive Multitasking and Protected Memory. Mac OS X: Symmetric Multiprocessing Components of Mac OS X The Layered Approach Darwin Core Services Graphics Services Application Environments Aqua Useful Mac OS X Jargon Bundles Frameworks Umbrella Frameworks Mac OS X Installation Initialization Options Installation Options Version 1.0 Copyright © 2001 by Apple Computer, Inc. All Rights Reserved. 1 Startup Keys Mac OS X Setup Assistant Mac OS 9 and Classic Standard Directory Names Quick Answers: Where do my __________ go? More Directory Names A Word on Paths Security UNIX and security Multiple user implementation Root Old Stuff in New Terms INITs in Mac OS X Fonts FKEYs Printing from Mac OS X Disk First Aid and Drive Setup Startup Items Mac OS 9 Control Panels and Functionality mapped to Mac OS X New Stuff to Check Out Review Questions Review Answers Further Reading Change history: 3/19/01: Removed comment about UFS volumes not being selectable by Startup Disk.