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Better Performance Through a Disk/Persistent-RAM Hybrid Design
The Conquest File System: Better Performance Through a Disk/Persistent-RAM Hybrid Design AN-I ANDY WANG Florida State University GEOFF KUENNING Harvey Mudd College PETER REIHER, GERALD POPEK University of California, Los Angeles ________________________________________________________________________ Modern file systems assume the use of disk, a system-wide performance bottleneck for over a decade. Current disk caching and RAM file systems either impose high overhead to access memory content or fail to provide mechanisms to achieve data persistence across reboots. The Conquest file system is based on the observation that memory is becoming inexpensive, which enables all file system services to be delivered from memory, except providing large storage capacity. Unlike caching, Conquest uses memory with battery backup as persistent storage, and provides specialized and separate data paths to memory and disk. Therefore, the memory data path contains no disk-related complexity. The disk data path consists of only optimizations for the specialized disk usage pattern. Compared to a memory-based file system, Conquest incurs little performance overhead. Compared to several disk-based file systems, Conquest achieves 1.3x to 19x faster memory performance, and 1.4x to 2.0x faster performance when exercising both memory and disk. Conquest realizes most of the benefits of persistent RAM at a fraction of the cost of a RAM-only solution. Conquest also demonstrates that disk-related optimizations impose high overheads for accessing memory content in a memory-rich environment. Categories and Subject Descriptors: D.4.2 [Operating Systems]: Storage Management—Storage Hierarchies; D.4.3 [Operating Systems]: File System Management—Access Methods and Directory Structures; D.4.8 [Operating Systems]: Performance—Measurements General Terms: Design, Experimentation, Measurement, and Performance Additional Key Words and Phrases: Persistent RAM, File Systems, Storage Management, and Performance Measurement ________________________________________________________________________ 1. -
Amigan Software
tali ► an Amiga Februar y 97 Issue No 3 Gaz te rip $3 Who said that there are no Amiga dealers left? Hardware Amiga A1200 HD, Amiga A4000 Cobra 33 68030 33, Mhz Cobra 33+ with 68882, Cobra 40 68EC030 40 Mhz, Cobra40+ with 68882, Ferret SCSI card for Cobra 1202 32 bit rami- clock, 1202+ with 16 or 33 Mhz 68882, Squirrel SCSI, Surf Squirrel SCSI plus RS@232, 2 Mb PCMCIA Ram A1200/A600, Spitfire SCSI A2000/3000/4000, Rapidfire SCSI + RAM A2000, Wildfire A2000 68060+ram+SCSI F/W+network, Megachip, 2Mb chip ram A500/A2000, Securekey Security card for A2000/3000/4000, Picasso Graphics cards, SCSI and IDE Hard drives. Accessories Green Mouse -320 DPI with pad, Hypermouse I1 400 DPI with pad, Pen mouse - super small, Joysticks, from Quickshot and Rocfire, GI 105 hand- scanner with touchup 4 and OCR Jr, Colourburst colour hand scanner with ADPRO loader & OCR Jr, Master 3A 880 K External Floppy drives, Rocgen Plus genlock, Electronic Design Genlocks and TBC, Neriki Genlocks Syquest EzDrives, External SCSI Cases with A500/A600/A1200 power lead included & CD, or hard drive option, A1200 3.5 IDE Kits, Monitor adaptors, ROM Switches, Air Freight Magazines with CD. Plus Much more Available. Software Over 70 titles in stock including games, productivity, CD rom titles, and Utilities, all at competative prices. Servicing We have a fully equiped workshop, and our techs have a total of over 50 Man years of experience as technicians in the computer industry. We do repairs and upgrades including specialist work. The Complete Amiga specialist. -
Norske Amigafreaker Fortsetter Med Amigablad: the Sky Is NOT the Limit!!!
Norske amigafreaker fortsetter med amigablad: The sky is NOT the limit!!! amiga 1 - 2013 - 20. årgang - UTG 57 guiden - MorphOS intervju - Artificial Intelligence - Min AmigaOne: Helgis er tilbake! Foto: Vidar Karlsen - Ettertrykk med tillatelse 3 ReadMeFirst Redaktørens spalte, medarbeidere og spesifikasjoner på produksjonsmateriell 4 Min AmigaOne Helge Kvalheim forteller om sin AmigaOne 500 Intervju med MorphOS-koder: 10 Ilkka Lehtoranta 13 Amiga og AI? 14 Midtsidegutten/midtsidepiken 17 IRC-chat: Bil Herd 20 IRC-chat: Steven Sollie 23 IRC-chat: Trevor Dickinson 2 - ReadMeFirst - Fremtidshåp Og den som sier at amigamiljøet sliter og har gått i Etter å ha gjennomlevd og overlevd 2-3 måneder med oppoverbakke i flere år, lyver heller ikke. sykdom, må jeg få lov til å beklage et litt lite gjennomført blad for våre lesere. Likevel er det vel sånn at motgang gjør Når skal medgangen komme? Skal vi aldri få det sterk og at livet går videre likevel. gjennombruddet jeg tror vi alle håper på? Det er gjennom personlig motgang at man kan vokse seg Vil det komme en nostalgisk vind over oss som tar oss med sterkere, for det er ved å gå i motbakker at man får styrke til stormskritt inn i fremtiden? å takle nedoverbakkene. Eller er vi dømt til å slite med en platform med spittelse, Med andre ord - i motvind lærer man seg å seile i medvind. hvor alle motarbeider hverandre i stedet for å se fremover med samme mål og mening? Mitt håp er at dette også kan speiles i Amiga sin fremtid. Statusen for Amiga sitt publikum er mere nyansert enn Jeg kan heller ikke se min egen visjon gå i oppfyllelse. -
AMD Radeon™ Ramdisk User's Manual And
AMD Radeon™ RAMDisk User's Manual and FAQ Revision Tracker Revision Number Software Version Description Revision Date 04 V4.0.0 Initial Release October 2012 05 V4.1.x Version 4.1.x Update March 2013 06 V4.2.x Version 4.2.x Update June 2013 07 V4.3.x Version 4.3.x Update October 2013 08 V4.4.x Version 4.4.x Update December 2013 1 2 Table of Contents 1. Introduction to RAMDISK .......................................................................................................................... 5 What is RAMDisk? .................................................................................................................................... 5 How does it work? ..................................................................................................................................... 5 What is the benefit? .................................................................................................................................. 5 2. Screen-by-screen definition of settings .................................................................................................... 7 Menus and Start/Stop Buttons .................................................................................................................. 7 Settings Tab .............................................................................................................................................. 9 Advanced Settings Tab ........................................................................................................................... 15 -
Beyond the Future
Amiga User 7/2019 3 CONTENTS AMIGA user SPECIAL Shape Shifter 7/2019 HARDWARE Picasso IV in Amiga 2000 Video Turtle E-Mail: LS-120 drive [email protected] NETWORKING FTP configuration in Opus 5 AmFTP: step by step Editor: Miami vs AmiTCP Adam Zalepa CNet driver usage AMIGA OS 3 Latest stuff from Aminet Cover design: Marzena Bukowska Multidisk LHA archive AMOS: Tips & Tricks Publisher: Basic code in startup-sequence A2 Renata Gralak GoADF 2019! Review and interview with the author Łódź, Poland Good improvements for AmigaDOS CDXL movies The Authors: Graphics processing in ImageFX Tomasz Bernacik OctaMED: Sound Studio Edition Rafał Chyła Mateusz Eckert Creating 3D fonts in Imagine Krzysztof Kliś Kickstart updated Marcin Libicki Turbo Calc (Part 2) Krzysztof Radzikowski Triton (Part 1) Kamil Stokowski Global Trash Robert Szacki AMIGA OS 4 Network setup on emulation Mariusz Wasilewski AROS For your daily use? All names and trademarks are the property MORPHOS Desktop configuration of their respective owners and are used SFS Doctor for informational purposes only. GAMES onEscapee Free Point and Click adventures Beyond the future ADAM ZALEPA This time I will write briefly - our I hope you will enjoy these that in the next issue there will magazine is changing. As you can changes. I especially invite you be a big article discussing see, we have a new font, slightly to read reviews of the new various aspects of using FPGA changed layout and more GoADF! program and an interview devices, not only when it comes content. We start to write about with its author. -
Amigaos 3.2 FAQ 47.1 (09.04.2021) English
$VER: AmigaOS 3.2 FAQ 47.1 (09.04.2021) English Please note: This file contains a list of frequently asked questions along with answers, sorted by topics. Before trying to contact support, please read through this FAQ to determine whether or not it answers your question(s). Whilst this FAQ is focused on AmigaOS 3.2, it contains information regarding previous AmigaOS versions. Index of topics covered in this FAQ: 1. Installation 1.1 * What are the minimum hardware requirements for AmigaOS 3.2? 1.2 * Why won't AmigaOS 3.2 boot with 512 KB of RAM? 1.3 * Ok, I get it; 512 KB is not enough anymore, but can I get my way with less than 2 MB of RAM? 1.4 * How can I verify whether I correctly installed AmigaOS 3.2? 1.5 * Do you have any tips that can help me with 3.2 using my current hardware and software combination? 1.6 * The Help subsystem fails, it seems it is not available anymore. What happened? 1.7 * What are GlowIcons? Should I choose to install them? 1.8 * How can I verify the integrity of my AmigaOS 3.2 CD-ROM? 1.9 * My Greek/Russian/Polish/Turkish fonts are not being properly displayed. How can I fix this? 1.10 * When I boot from my AmigaOS 3.2 CD-ROM, I am being welcomed to the "AmigaOS Preinstallation Environment". What does this mean? 1.11 * What is the optimal ADF images/floppy disk ordering for a full AmigaOS 3.2 installation? 1.12 * LoadModule fails for some unknown reason when trying to update my ROM modules. -
Juni 2014 #009
Classic AmigaOS 4 MorphOS AROS UAE AMIGA FORUM www.suga.se www.amigaforum.se JUNI 2014 #009 I detta nummer: AMIGBG 2014 Noisetracker 25 år Nyheter och rapporter Recension: Putty Squad FPGA-baserade Amigakloner GG2: nygammalt nätverkskort Kallelse till SUGA:s extra föreningsstämma Protokoll från SUGA:s ordinarie föreningsstämmaAMIGAFORUM #9 2014 • 1 ay Miner, Amigans fader, gick bort för 20 år sedan den 20 juni. I slutet på 70-talet var han Ataris specialchips-kille. Dessa chips användes för att avlasta CPU:n och RAM-minnet genom att ta hand om till exempel grafik och ljud. Jay ville ta denna designfilosofi så långt det gick, slutade på Atari 1980 och lyckades bygga sin drömdator − Amigan − vilket Commodore köpte upp och släppte J1985 när hans företag inte kunde slutföra projektet. Denna design gjorde Amigan både kraftfullare och billigare än sina konkurrenter. Men designen hade en baksida; den var inte kompatibel med någon annan dator. För första generationens hemmadatoranvändare på 70-talet sågs det som ett nödvändigt ont att man bara kunde arbeta på sin egna datormodell. I början av 80-talet längtade företagsvärlden i USA efter en standard (amerikaner älskar sånt) och fann den med IBM:s pc som släpptes 1981. Den byggdes av standardkomponenter som enkelt kunde kopieras och helt plötsligt hade vi mängder av tillverkare av datorer som kunde använda samma mjukvara. Amigan, Jays drömmaskin, kom att bli höjdpunkten för specialchipsba- serade datorer. 1985 var pc:n en fantasilös och dyr maskin men bara 10 år senare hade konkurrensen pressat utvecklingen så långt att den i mångt och mycket hunnit ikapp eller sprungit ifrån Amigan. -
Metadefender Core V4.12.2
MetaDefender Core v4.12.2 © 2018 OPSWAT, Inc. All rights reserved. OPSWAT®, MetadefenderTM and the OPSWAT logo are trademarks of OPSWAT, Inc. All other trademarks, trade names, service marks, service names, and images mentioned and/or used herein belong to their respective owners. Table of Contents About This Guide 13 Key Features of Metadefender Core 14 1. Quick Start with Metadefender Core 15 1.1. Installation 15 Operating system invariant initial steps 15 Basic setup 16 1.1.1. Configuration wizard 16 1.2. License Activation 21 1.3. Scan Files with Metadefender Core 21 2. Installing or Upgrading Metadefender Core 22 2.1. Recommended System Requirements 22 System Requirements For Server 22 Browser Requirements for the Metadefender Core Management Console 24 2.2. Installing Metadefender 25 Installation 25 Installation notes 25 2.2.1. Installing Metadefender Core using command line 26 2.2.2. Installing Metadefender Core using the Install Wizard 27 2.3. Upgrading MetaDefender Core 27 Upgrading from MetaDefender Core 3.x 27 Upgrading from MetaDefender Core 4.x 28 2.4. Metadefender Core Licensing 28 2.4.1. Activating Metadefender Licenses 28 2.4.2. Checking Your Metadefender Core License 35 2.5. Performance and Load Estimation 36 What to know before reading the results: Some factors that affect performance 36 How test results are calculated 37 Test Reports 37 Performance Report - Multi-Scanning On Linux 37 Performance Report - Multi-Scanning On Windows 41 2.6. Special installation options 46 Use RAMDISK for the tempdirectory 46 3. Configuring Metadefender Core 50 3.1. Management Console 50 3.2. -
Design and Implementation of an Optionally-Typed Functional Programming Language
Design and Implementation of an Optionally-Typed Functional Programming Language Shaobai Li Electrical Engineering and Computer Sciences University of California at Berkeley Technical Report No. UCB/EECS-2017-215 http://www2.eecs.berkeley.edu/Pubs/TechRpts/2017/EECS-2017-215.html December 14, 2017 Copyright © 2017, by the author(s). All rights reserved. Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. To copy otherwise, to republish, to post on servers or to redistribute to lists, requires prior specific permission. Design and Implementation of an Optionally-Typed Functional Programming Language by Patrick S. Li A dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Engineering { Electrical Engineering and Computer Sciences in the Graduate Division of the University of California, Berkeley Committee in charge: Professor Koushik Sen, Chair Adjunct Professor Jonathan Bachrach Professor George Necula Professor Sara McMains Fall 2017 Design and Implementation of an Optionally-Typed Functional Programming Language Copyright 2017 by Patrick S. Li 1 Abstract Design and Implementation of an Optionally-Typed Functional Programming Language by Patrick S. Li Doctor of Philosophy in Engineering { Electrical Engineering and Computer Sciences University of California, Berkeley Professor Koushik Sen, Chair This thesis describes the motivation, design, and implementation of L.B. Stanza, an optionally- typed functional programming language aimed at helping programmers tackle the complexity of architecting large programs and increasing their productivity across the entire software development life cycle. -
An Introduction to Morphos
An Introduction to MorphOS Updated to include features to version 1.4.5 May 14, 2005 MorphOS 1.4 This presentation gives an overview of MorphOS and the features that are present in the MorphOS 1.4 shipping product. For a fully comprehensive list please see the "Full Features list" which can be found at: www.PegasosPPC.com Why MorphOS? Modern Operating Systems are powerful, flexible and stable tools. For the most part, if you know how to look after them, they do their job reasonably well. But, they are just tools to do a job. They've lost their spark, they're boring. A long time ago computers were fun, it is this background that MorphOS came from and this is what MorphOS is for, making computers fun again. What is MorphOS? MorphOS is a fully featured desktop Operating System for PowerPC CPUs. It is small, highly responsive and has very low hardware requirements. The overall structure of MorphOS is based on a new modern kernel called Quark and a structure divided into a series of "boxes". This system allows different OS APIs to be used along side one another but isolates them so one cannot compromise the other. To make sure there is plenty of software to begin with the majority of development to date has been based on the A- BOX. In the future the more advanced Q-Box shall be added. Compatibility The A-Box is an entire PowerPC native OS layer which includes source and binary compatibility with software for the Commodore A500 / A1200 etc. -
Introducing Myself…
IntroducingIntroducing myselfmyself …… Nenad aka "DocKimbel" Rakocevic, Programming for 25 years: C/C++, *Basic, ASM, REBOL, web client -side languages, … Founder of a software company in Paris: Softinnov Author of several libraries for REBOL: MySQL, PostgresQL, LDAP native drivers UniServe: asynchronous, event -driven network engine Cheyenne Web Server: full -featured web application server CureCode: very fast web -based bug tracker (Mantis -like) Various others tools, game, demos … Was a happy Amiga user and registered BeOS developer WhyWhy amam II usingusing REBOLREBOL forfor 1111 years?years? Great scripting language Great prototyping tool Simple cross -platform graphic engine (View) Symbolic & Meta -programming Code / Data duality DSL -oriented Great designer behind: Carl Sassenrath WhyWhy II don'tdon't wantwant toto useuse REBOLREBOL anymore?anymore? Closed source Slow ( benchmark ) No multithreading support Mostly glue language, not general -purpose enough Not (easily) embeddable in third -party apps Can't run on popular VM (JVM, CLR) Sometimes designed for " Bob the artist ", rather than "John the programmer " WhatWhat isis thethe statestate ofof REBOLREBOL world?world? (1/2)(1/2) How REBOL began 14 years ago … WhatWhat isis thethe statestate ofof REBOLREBOL world?world? (2/2)(2/2) …and where it is today WhatWhat toto dodo then?then? Give up and pick up another language? Build an alternative? I chose the 2 nd option! MyMy answeranswer is:is: RReded !! Red[uced] REBOL dialect Fully open source (MIT/BSD) Statically compiled -
Hi Quality Version Available on AMIGALAND.COMYOUR BONUS SECOND CD! Packed with Games, Anims, ^ 3D Models and M Ore
' A G A EXPERIENCE Hi Quality Version Available on AMIGALAND.COMYOUR BONUS SECOND CD! Packed with games, anims, ^ 3D models and m ore... P L U S n @ AMIGA • J U T D J t 'jJUhD'j'jSxni D W This commercial CD is packed with AGA games, 9771363006008 ^ demos, pictures, utilities, 3D models, music, animations and more 9 771363 006008 Please make checks to COSOFT or O (01702) 300441 n 300441 order by credit card / switch & delta Most titles are despatched same day. ^ ^ - 5 217 - 219 Hamstel Rd - Southend-on-Sea, ESSEX, SS2 4LB Vat is INCLUDED on all titles, e&oe q . ^ er [email protected] Give us your email for monthly feb Page: Hnp://www.pdsoft m updated catalogue reports. Office & Retail Outlet open Monday to Saturday 9:30 to 7pm - Tel (01702) 306060 & 306061 - Fax (01702) 300115 Please add 1.00 per title for UK P&P & 2.00 for oversea's Airmail - Order via email & get the most upto date prices. Check our Web pages (updated every day) for special ofers and new releases. Special offers running every day. JUNGLE STRIKE SPECIAL FEATURE (1 4 .ff CAPTIAL PUNISHMENT Only (24.99 688 ATTACK SUPER SIOMARKS LEGENDS LURE OF THE SUB (12 DATA DISK (S B * f 17.BB T.TRESS (12 SABRE TEAM PLAYER ON MANAGER 2 OOYSSEY 1199 RUGBY SYNDICATE ( 12.M EURO KICKOFF 3 Hi Quality Version Available on AMIGALAND.COMC7.BB INTER OFFICE UPNtl BLACK CRYPT M r ( I f f * Me (11.00 INTER SPREAD WORLD CUP M r ( 9 99 Inc SOCCER CM2 - (3.99 A ll - (3 99 IN TER WORD K240 (7.U M r u n w CHESS SYSTEM SCREEHBAT 4 Give us a ring if you do not see what you want ACTIVE STEREO Some titles are limited and will go out of stock quickly.