Non-Volatileメインメモリとファイルシステムの融合
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Table of Contents
A Comprehensive Introduction to Vista Operating System Table of Contents Chapter 1 - Windows Vista Chapter 2 - Development of Windows Vista Chapter 3 - Features New to Windows Vista Chapter 4 - Technical Features New to Windows Vista Chapter 5 - Security and Safety Features New to Windows Vista Chapter 6 - Windows Vista Editions Chapter 7 - Criticism of Windows Vista Chapter 8 - Windows Vista Networking Technologies Chapter 9 -WT Vista Transformation Pack _____________________ WORLD TECHNOLOGIES _____________________ Abstraction and Closure in Computer Science Table of Contents Chapter 1 - Abstraction (Computer Science) Chapter 2 - Closure (Computer Science) Chapter 3 - Control Flow and Structured Programming Chapter 4 - Abstract Data Type and Object (Computer Science) Chapter 5 - Levels of Abstraction Chapter 6 - Anonymous Function WT _____________________ WORLD TECHNOLOGIES _____________________ Advanced Linux Operating Systems Table of Contents Chapter 1 - Introduction to Linux Chapter 2 - Linux Kernel Chapter 3 - History of Linux Chapter 4 - Linux Adoption Chapter 5 - Linux Distribution Chapter 6 - SCO-Linux Controversies Chapter 7 - GNU/Linux Naming Controversy Chapter 8 -WT Criticism of Desktop Linux _____________________ WORLD TECHNOLOGIES _____________________ Advanced Software Testing Table of Contents Chapter 1 - Software Testing Chapter 2 - Application Programming Interface and Code Coverage Chapter 3 - Fault Injection and Mutation Testing Chapter 4 - Exploratory Testing, Fuzz Testing and Equivalence Partitioning Chapter 5 -
Embedded Systems
Embedded Systems Peter Marwedel Embedded System Design Embedded Systems Foundations of Cyber-Physical Systems, and the Internet of Things Fourth Edition Embedded Systems Series editors Nikil D. Dutt, Irvine, CA, USA Grant Martin, Santa Clara, CA, USA Peter Marwedel, Dortmund, Germany This Series addresses current and future challenges pertaining to embedded hard- ware, software, specifications and techniques. Titles in the Series cover a focused set of embedded topics relating to traditional computing devices as well as high- tech appliances used in newer, personal devices, and related topics. The material will vary by topic but in general most volumes will include fundamental material (when appropriate), methods, designs, and techniques. More information about this series at http://www.springer.com/series/8563 Peter Marwedel Embedded System Design Embedded Systems Foundations of Cyber-Physical Systems, and the Internet of Things Fourth Edition 123 Peter Marwedel TU Dortmund Dortmund, Germany ISSN 2193-0155 ISSN 2193-0163 (electronic) Embedded Systems ISBN 978-3-030-60909-2 ISBN 978-3-030-60910-8 (eBook) https://doi.org/10.1007/978-3-030-60910-8 1st edition: Springer US 2006 2nd edition: Springer Netherlands 2011 3rd edition: Springer International Publishing 2018 © The Editor(s) (if applicable) and The Author(s) 2021. This book is an open access publication. Open Access This book is licensed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made. -
ELC 2008 Agenda
Embedded Linux Conference, 2008 Program Agenda Mountain View, California, April 15-17 Table of Contents Agenda...............................................................................................................................2 Tuesday...........................................................................................................................2 Wednesday......................................................................................................................3 Thursday.........................................................................................................................4 Keynote List........................................................................................................................5 Keynote Descriptions.........................................................................................................5 Session List........................................................................................................................7 Session Descriptions..........................................................................................................9 BOF List............................................................................................................................30 BOF Descriptions.............................................................................................................30 Agenda Tuesday Session Schedule - Tuesday, April 15 Time Room A - Hahn Room B - Boole Room C - Noyce 8:00 - 900 Registration 9:00 - 9:50 Keynote: -
Update on Filesystems for Flash Storage
Embedded Linux Conference Europe Update on filesystems for flash storage Michael Opdenacker. Free Electrons http://free-electrons.com/ 1 Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http//free-electrons.com Contents Introduction Available flash filesystems Our benchmarks Best choices Advice for flash-based block devices Experimental filesystems 2 Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http//free-electrons.com Update on filesystems for flash storage Introduction 3 Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http//free-electrons.com Flash storage We are talking about flash chips, accessed by the Linux kernel as Memory Technology devices. Compact Flash, MMC/SD, Memory Stick cards, together with USB flash drives and Solid State Drives (SSD), are interfaced as block storage, like regular hard disks. At the end, we will say a few words about dealing with the second category. 4 Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http//free-electrons.com Existing solutions For the last years, only 2 filesystem choices for flash storage jffs2 yaffs2 Wear leveling, ECC Wear leveling, ECC Power down resistant Power down resistant Compression No compression Huge mount times Very quick mount time Rather big memory usage Programmed by Wookies (at least 1) Mainstream support Available as a Linux patch. 2 solutions, but far from being perfect! 5 Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http//free-electrons.com Election time! At last, new choices have been developed. LogFS How do they compare New filesystem for MTD to existing solutions? storage Mounting time UBI Access speed New layer managing erase blocks and wear leveling Memory usage UBIFS CPU usage New filesystem taking Size? advantage of UBI©s capabilities AXFS Advanced XIP FileSystem 6 Free Electrons. -
Filesystems for Flash Storage
JM2L 2008 Update on filesystems for flash storage Michael Opdenacker. Bootlin https://bootlin.com/ 1 Bootlin. Kernel, drivers and embedded Linux development, consulting, training and support. http://bootlin.com About this document This document is released under the terms of the Creative-Commons BY-SA 3.0 license: http://creativecommons.org/licenses/by-sa/3.0/ Documents updates can be found or described on https://bootlin.com/pub/conferences/2008/elce/ 2 Bootlin. Kernel, drivers and embedded Linux development, consulting, training and support. http://bootlin.com Contents Introduction Available flash filesystems Our benchmarks Best choices Experimental filesystems Advice for flash-based block devices 3 Bootlin. Kernel, drivers and embedded Linux development, consulting, training and support. http://bootlin.com Update on filesystems for flash storage Introduction 4 Bootlin. Kernel, drivers and embedded Linux development, consulting, training and support. http://bootlin.com Flash storage We are talking about flash chips, accessed by the Linux kernel as Memory Technology devices. Compact Flash, MMC/SD, Memory Stick cards, together with USB flash drives and Solid State Drives (SSD), are interfaced as block storage, like regular hard disks. At the end, we will say a few words about dealing with the second category. 5 Bootlin. Kernel, drivers and embedded Linux development, consulting, training and support. http://bootlin.com Existing solutions For the last years, only 2 filesystem choices for flash storage jffs2 yaffs2 Wear leveling, ECC Wear leveling, ECC Power down resistant Power down resistant Compression No compression Huge mount times Very quick mount time Rather big memory usage Programmed by Wookies (at least 1) Mainstream support Available as a Linux patch. -
Flash Filesystem Advanced Filesystem Ext4 / Brtfs POHMELFS AXFS / Logfs / UBIFS
Developing a Simple Filesystem I. File Concepts II. File IO / Standard IO Libarary III. Filesystem-based Concepts IV. Kernel Concepts V. Developing Filesystem VI. Other Filesystem 2008. 10. 31 LG Electronics Software Center 심재훈 1 File concepts File Type Regular / Directories / Symbolic Links / Hard Links / Named Pipes Special Files File Descriptors handle through which the file can be subsequently accessed Basic File Properties file type / access permission link count owner and group of file size / date / name 2 File concepts Basic File Properties(con’t) 3 File concepts # VFS Inode structure 4 File concepts {“.”, 3333} / {“..”, 2} inode {“directory.”, 12668259} KELP_seminar/ 3333 {“file”, 8463735} 3 {“hard_link”, 8463735} {“symbolic_link.”, 8463736} {“symbolic_link2”, 8463740} directory/ file hard_link symbolic_link symbolic_link2 inode inode inode inode 12668259 8463735 8463736 8463740 inode number 2 2 1 1 nlink {“.”, 12668259} regular file “file” “./file” {“..”, 3333} hard_link 5 File IO basic file operations open() / creat() / close() / lseek() / read() / write() . truncate() / unlink() seeking and IO combined . pread() / pwrite() . read-write loop 1 million times. 35sec → 25sec vectored IO . readv() / writev() . use in case single-read data needs to placed in different areas of memory. asynchronous IO . aio_read() / aio_write() / aio_return() / aio_error() / aio_cancel() file and record locking . fcntl() : F_GETLK / F_SETLK / F_SETLKW memory mapped files, direct IO sparse file 6 File IO ## Vectored IO ## user address -
The Enabling of an Execute-In-Place Architecture to Reduce the Embedded System Memory Footprint and Boot Time
JOURNAL OF COMPUTERS, VOL. 3, NO. 1, JANUARY 2008 79 The Enabling of an Execute-In-Place Architecture to Reduce the Embedded System Memory Footprint and Boot Time Tony Benavides Intel Corporation, Folsom, CA USA Email: [email protected] Justin Treon, Jared Hulbert and Weide Chang Flash Memory Group, Intel Corporation California State University, Sacramento USA Department of Computer Science Email: [email protected], [email protected], [email protected] Abstract—Success in the embedded world revolves around Both of these models vary the way that they use RAM two key concepts: cost effectiveness and performance. The and Non-Volatile Memory in a system. ability for an operating system to boot quickly combined with The current eXecute-In- Place (XIP) memory model speedy application usage at runtime is important to consumer works excellent for code execution and data storage. In unit adoption. The most common memory sub-system setup in systems that exhibit a situation where some data cannot cellular phone architectures today is what is called an eXecute-In-Place architecture. This type of memory sub- take advantage of the cache in order to meet a limited system defines the execution of code and data directly from latency requirement it will be of a great benefit to focus NOR flash memory. An additional memory architecture of on this Balanced XIP System architecture. choice is called a Store and Download architecture. This is a When using a pure Store and Download (SnD) model, memory sub-system where the code gets copied to RAM at boot the battery life decreases due to the fact that more volatile time and executes out of the RAM. -
Linux in Automotive Environment
Linux in Automotive Environment Master of Science Thesis at Computer Science and Engineering ARON ULMESTRAND DANIEL ÖKVIST Department of Computer Science and Engineering CHALMERS UNIVERSITY OF TECHNOLOGY UNIVERSITY OF GOTHENBURG Göteborg, Sweden, June 2010 The Author grants to Chalmers University of Technology and University of Gothenburg the non-exclusive right to publish the Work electronically and in a non-commercial purpose make it accessible on the Internet. The Author warrants that he/she is the author to the Work, and warrants that the Work does not contain text, pictures or other material that violates copyright law. The Author shall, when transferring the rights of the Work to a third party (for example a publisher or a company), acknowledge the third party about this agreement. If the Author has signed a copyright agreement with a third party regarding the Work, the Author warrants hereby that he/she has obtained any necessary permission from this third party to let Chalmers University of Technology and University of Gothenburg store the Work electronically and make it accessible on the Internet. ARON ULMESTRAND DANIEL ÖKVIST © Aron Ulmestrand, June 2010. © Daniel Ökvist, June 2010. Examiner: Catarina Coquand Chalmers University of Technology University of Gothenburg Department of Computer Science and Engineering SE-412 96 Göteborg Sweden Telephone + 46 (0)31-772 1000 Department of Computer Science and Engineering Göteborg, Sweden June 2010 Preface Linux in Automotive Environment is a Master Thesis at the department of Computer Science and Engineering at Chalmers University of Technology. It is written by Aron Ulmestrand and Daniel Okvist.¨ The work has been carried out at Mecel AB in Gothenburg. -
APPLICATION NOTE XIP Linux for RZ/A1
APPLICATION NOTE RZ/A1 EU_00181 Rev.1.10 XIP Linux for RZ/A1 Jun 13, 2016 Introduction Target Device Contents 1. Frame of Reference .......................................................................................................................... 2 2. What is an XIP Linux Kernel ............................................................................................................. 2 3. RZ/A1 XIP SPI Flash Hardware Support .......................................................................................... 2 4. Updating the kernel image ................................................................................................................ 3 5. Kernel RAM usage ............................................................................................................................ 3 6. Simple Benchmarks .......................................................................................................................... 3 7. Kernel vs Userland ............................................................................................................................ 6 8. Files Systems and Storage ............................................................................................................... 6 9. u-boot Modifications .......................................................................................................................... 7 EU_00181 Rev.1.10 Page 1 of 8 Jun 13, 2016 RZ/A1 XIP Linux for RZ/A1 1. Frame of Reference Since the Linux kernel and open source community is constantly -
Embedded Linux System Development Training
Free Electrons Embedded Linux system development training Thomas Petazzoni Florent Peyraud Michael Opdenacker 1 Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http//free-electrons.com Linux kernel Linux device drivers Free Electrons Board support code Our services Mainstreaming kernel code Kernel debugging Custom Development System integration Embedded Linux Training Embedded Linux demos and prototypes All materials released with a free license! System optimization Unix and GNU/Linux basics Application and interface development Linux kernel and drivers development Real-time Linux, uClinux Consulting and technical support Development and profiling tools Help in decision making Lightweight tools for embedded systems System architecture Root filesystem creation System design and performance review Audio and multimedia Development tool and application support System optimization Investigating issues and fixing tool bugs Rights to copy © Copyright 2004-2009, Free Electrons [email protected] Document updates available on http://free-electrons.com/doc/training/embedded-linux/ Corrections, suggestions, contributions and translations are welcome! Attribution ± ShareAlike 3.0 Latest update: May 21, 2009 You are free to copy, distribute, display, and perform the work to make derivative works to make commercial use of the work Under the following conditions Attribution. You must give the original author credit. Share Alike. If you alter, transform, or build upon this work, you may distribute the resulting work only under a license identical to this one. For any reuse or distribution, you must make clear to others the license terms of this work. Any of these conditions can be waived if you get permission from the copyright holder. -
Proceedings of the Linux Symposium
Proceedings of the Linux Symposium Volume One July 23rd–26th, 2008 Ottawa, Ontario Canada Contents x86 Network Booting: Integrating gPXE and PXELINUX 9 H. Peter Anvin Keeping the Linux Kernel Honest 19 Kamalesh Babulal & Balbir Singh Korset: Automated, Zero False-Alarm Intrusion Detection for Linux 31 Ohad Ben-Cohen & Avishai Wool Suspend-to-RAM in Linux 39 Len Brown & Rafael J. Wysocki Systems Monitoring Shootout 53 K. Buytaert, T. De Cooman, F. Descamps, & B. Verwilst Virtualization of Linux servers 63 F.L. Camargos, G. Girard, & B. des Ligneris MondoRescue: a GPL Disaster Recovery Solution 77 Bruno Cornec The Corosync Cluster Engine 85 Steven C. Dake LTTng: Tracing across execution layers, from the Hypervisor to user-space 101 Mathieu Desnoyers Getting the Bits Out: Fedora MirrorManager 107 Matt Domsch Applying Green Computing to clusters and the data center 113 Andre Kerstens & Steven A. DuChene Introduction to Web Application Security Flaws 123 Jake Edge Around the Linux File System World in 45 minutes 129 Steve French Peace, Love, and Rockets! 135 Bdale Garbee Secondary Arches, enabling Fedora to run everywhere 137 Dennis Gilmore Application Testing under Realtime Linux 143 Luis Claudio R. Gonçalves & Arnaldo Carvalho de Melo IO Containment 151 Naveen Gupta Linux Capabilities: making them work 163 Serge E. Hallyn & Andrew G. Morgan Issues in Linux Mirroring: Or, BitTorrent Considered Harmful 173 John Hawley Linux, Open Source, and System Bring-up Tools 183 Tim Hockin Audio streaming over Bluetooth 193 Marcel Holtmann Cloud Computing: Coming out of the fog 197 Gerrit Huizenga Introducing the Advanced XIP File System 211 Jared Hulbert Low Power MPEG4 Player 219 J.-Y.