Genode - Genode Operating System Framework
We understand the complexity of code and policy as the most fundamental security problem shared by modern general-purpose operating systems. Because of high functional demands and dynamic workloads, however, this complexity cannot be avoided. But it can be organized. Genode is a novel OS architecture that is able to master complexity by applying a strict organizational structure to all software co
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1. ä¸ï¥§æ®ç™ºãƒ¡ãƒ¢ãƒªã¨OSç ”ç©¶ã«ã¾ã¤ã‚る何㋠産æ¥æŠ€è¡“ç·åˆç ”究所 æƒ…å ±æŠ€è¡“ç ”ç©¶éƒ¨â¾¨é–€ ⾼高野 äº†ï¦ºæˆ 1 2014/12/11 ビッグデータ基盤勉強会@NTTæ¦è”µé‡Žç ”究開発センタ 2. ãƒã‚¸ã‚·ãƒ§ãƒ³ãƒˆãƒ¼ã‚¯ï¼ˆï¼‘） 計算機アーã‚テクãƒãƒ£ã®é€²åŒ–≒メモリ技術ã®é€²åŒ– á›á£º165 @ᮾ኱ – 仮想記憶： メモリãŒæ²¢â¼å±±æ¬²ã—ㄠ– ã‚ャッシュ：メモリを早ãã—ãŸã„ – ストレージクラスメモリ 2 SCMRequirement ExpectedFuture SRAM NANDFlash HDD 5ns 50ns 1ms 10ms DRAM SCM z SCMismainapplicationtechnologies z SCMRequirement z Performance BetweenDRAMandz Density(bitcost) BetweenDRAMandIn2015, bits 4G 128G
2013-05-debian gnu hurd 2013
Debian GNU/Hurd 2013 released! It is with huge pleasure that the Debian GNU/Hurd team announces the release of Debian GNU/Hurd 2013. This is a snapshot of Debian "sid" at the time of the Debian "wheezy" release (May 2013), so it is mostly based on the same sources. It is not an official Debian release, but it is an official Debian GNU/Hurd port release. The installation ISO images can be downloade
ReFS: The Next Generation File System for Windows
Triggered by the last 2 podcasts of John Siracusa1, the last few days I’ve read quite a bit about ZFS and Microsoft’s new file system ReFS. The article I’m linking to contains quite a few interesting bits about ReFS, but the following parts caught my attention: ReFS is not a log structured file system due to torn writes: One of the approaches we considered and rejected was to implement a log struc
The Restart Page
An answer to OFFF's invitation to collaborate with a piece under their "Year Zero" 2011 concept. A tribute to the most significant operating systems that has been part of our geek lives. Bon voyage! Created and designed by Soon in Tokyo and Built by rehabstudio Belfast & London. The Restart Page Sorry mate, but the Restart Page only works in desktop computers. We think that in order to reproduce t
SmartOS | Triton DataCenter
Converged Container and Virtual Machine HypervisorSmartOS, with its remarkable blend of the illumos kernel's power and the agility of a lightweight OS, has become the preferred choice for many specialized applications. While it shines as a standalone system, its capabilities are truly amplified when used with Triton Compute. Built on the strong foundation of SmartOS, Triton Compute transforms your
Tahoe: A Secure Distributed Filesystem
http://allmydata.org Brian Warner, allmydata.com : [email protected] Zooko Wilcox-O'Hearn, allmydata.com : [email protected] Rob Kinninmont, allmydata.com : [email protected] Abstract The "Tahoe" project is a distributed filesystem, which safely stores files on multiple machines to protect against hardware failures. Cryptographic tools are used to ensure integrity and confidentiality, a
What is Haiku?
What is Haiku? Haiku is an open source operating system under constant development. Specifically targeting personal computing, Haiku is a fast, efficient, simple to use, easy to learn, and yet very powerful system for computer users of all levels. Additionally, Haiku offers something over other open source platforms which is quite unique: The project consists of a single team writing everything fr
4gb*[技術メモ] 4GBæ載ã—ã¦ã‚‚4GB見ãˆãªã„ - tkochiã®è¦šãˆæ›¸ã
自分ã®PCã§ã¯ã¾ã 試ã—ãŸã“ã¨ãŒãªã„ã®ã§ã™ãŒã€ã‚‚ã¯ã‚„32bitã®é™ç•Œã®4GBæ載も夢ã§ã¯ãªã„時代ã«ãªã‚Šã¾ã—ãŸã€‚PC Watchã§å…ƒéº»å¸ƒæ˜¥ç”·æ°ã®1GBï¼2,000円時代ã®ãƒ¡ãƒ¢ãƒªå¢—è¨ã‚’考ãˆã‚‹(上)ã¨ã„ã†è¨˜äº‹ãŒæŽ²è¼‰ã•ã‚Œã¦ã„ã¾ã™ã€‚ãƒãƒƒãƒ—セット毎ã®ãƒ¡ãƒ¢ãƒªæ載é‡ã®åˆ¶é™ã‚„å„Windowsã®ã‚¨ãƒ‡ã‚£ã‚·ãƒ§ãƒ³æ¯Žã®æœ€å¤§èªè˜ãƒ¡ãƒ¢ãƒªé‡ã®åˆ¶é™ãŒã‚ã‹ã‚Šã‚„ã™ã表ã«ãªã£ã¦ã„ã¦ã‚ã‚ŠãŒãŸã„ã§ã™ã€‚ã©ã†ã—ã¦ã‚‚ã‚ã‹ã‚Šã«ãã„ã®ã¯ã€ãƒ—ãƒã‚»ãƒƒã‚µã®32bit/64bitã®2ã¤ã®ãƒ¢ãƒ¼ãƒ‰ã®é•ã„ã¨ç‰©ç†ãƒ¡ãƒ¢ãƒªé‡ã¨ã®é–¢ä¿‚ã§ã€ã©ã†èª¬æ˜Žã—ã¦ã‚‚ãªã‹ãªã‹ã‚ã‹ã‚Šã¥ã‚‰ã„ã‚ã‘ã§ã™ãŒã€32bit/64bitã®é•ã„ã¯ã€Œã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã‹ã‚‰ã©ã‚Œã ã‘ã®ã‚¢ãƒ‰ãƒ¬ã‚¹ç©ºé–“ãŒè¦‹ãˆã‚‹ã‹ã€ã¨ã„ã†é•ã„ã§ã€ç‰©ç†ãƒ¡ãƒ¢ãƒªæ載å¯èƒ½ãªé‡ã¨ã¯ã¾ã£ãŸãé•ã†ã€ã¨ã ã‘ç†è§£ã—ã¦ãŠãã¨è‰¯ã„ã®ã§ã¯ãªã„ã§ã—ょã†ã‹ã€‚仮想記憶ã®ãŠã‹ã’ã§ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢è¦‹ãˆã®ã‚¢ãƒ‰ãƒ¬ã‚¹ç©ºé–“(仮想アドレス空間)ã¨ç‰©ç†ãƒ¡ãƒ¢ãƒª(物ç†ã‚¢ãƒ‰ãƒ¬ã‚¹ç©ºé–“)ã®é–“ã«ã¯
Welcome to PureDarwin
Welcome to PureDarwin Darwin is the open source operating system from Apple that forms the base for macOS. PureDarwin is a community project that aims to make Darwin more usable (some people think of it as the informal successor to OpenDarwin). One current goal of this project is to provide useful bootable media of Darwin 10.x. Another goal of this project is to provide additional documentation. M
最近èªã‚“ã VM ã®æœ¬ - steps to phantasien(2008-12-14)
å°‘ã—å‰ã« "Virtual Machines: Versatile Platforms for Systems and Processes" ã¨ã„ㆠVM ã®æ•™ç§‘書をèªã‚“ã . 今年㯠VM ã«ã¤ã„ã¦çŸ¥ã£ãŸã‹ã¶ã‚Šã‚’ã™ã‚‹å¿…è¦ã«è¿«ã‚‰ã‚Œã‚‹ã“ã¨ãŒå¤šã, åçœã—ã¦ä»˜ã‘焼刃をã—ãŸæ¬¡ç¬¬. 言語処ç†ç³»ã® VM ã®è©±ã‚’期待ã—ã¦ã„ãŸã‚‰ XEN ã‚„ VMWare æ–¹é¢ã® VM ã®è©±ãŒä¸»ã§, æ„表ã¯çªã‹ã‚ŒãŸã‚‚ã®ã®é¢ç™½ã‹ã£ãŸ. 速度をä¿ã¡ãªãŒã‚‰ä»®æƒ³åŒ–ã¨ã„ã†æŠ½è±¡ã‚’守るãŸã‚㫠コンパイラ㨠OS ã®é–“ã®åãŒæ¬¡ã€…ã«æ›²èŠ¸ã‚’披露ã™ã‚‹å¥æ°—ã•ã«ã¯å¿ƒã‚’打ãŸã‚Œã‚‹. VM を使ã£ã¦ã‚ã’よã†ã¨ã„ã†æ°—ã«ãªã‚‹ä¸€å†Š. 折良ã Google ã‹ã‚‰ Native Client (NaCl) ãªã‚“ã¦ã„ㆠVM 技術ã®å¿œç”¨ãŒå…¬é–‹ã•ã‚ŒãŸã“ã¨ã ã—, ã“れを肴ã«æ•™ç§‘書ã®å®£ä¼ã‚’ã™ã‚‹ã¨ã„ã†ã®ãŒä»Šæ—¥ã®è¶£æ—¨ã§ã™. NaCl 自体ã®è©³ã—ã„話㯠whitepaper ã‚„
Plan9NotDeadYet - ã²ã‚‰ãƒ¡ Plan9 | Plan 9ã€ã„ã¾ã æ»ãªãšã€‚ãã—ã¦ã€ãã‚Œã‹ã‚‰ä½•ã‚’å¦ã¶ã“ã¨ãŒã§ãã‚‹ã‹
ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—ã®çµ‚了日を2020å¹´1月31æ—¥(金)ã«æ±ºå®šã—ã¾ã—㟠以下ã®ã‚¨ãƒ³ãƒˆãƒªã®é€šã‚Šã€ä»Šå¹´æœ«ã‚’目処ã«ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—を終了予定ã§ã‚る旨をãŠçŸ¥ã‚‰ã›ã—ã¦ãŠã‚Šã¾ã—ãŸã€‚ 2019年末を目処ã«ã€ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—ã®æ供を終了ã™ã‚‹äºˆå®šã§ã™ - ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—日記 ã“ã®ãŸã³ã€æ£å¼ã«çµ‚了日を決定ã„ãŸã—ã¾ã—ãŸã®ã§ã€ä»¥ä¸‹ã®é€šã‚Šã”確èªãã ã•ã„。 終了日: 2020å¹´1月31æ—¥(金) エクスãƒãƒ¼ãƒˆå¸Œæœ›ç”³è«‹æœŸé™:2020å¹´1月31æ—¥(金) 終了日以é™ã¯ã€ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—ã®é–²è¦§ãŠã‚ˆã³æŠ•ç¨¿ã¯è¡Œãˆã¾ã›ã‚“。日記ã®ã‚¨ã‚¯ã‚¹ãƒãƒ¼ãƒˆãŒå¿…è¦ãªæ–¹ã¯ä»¥ä¸‹ã®è¨˜äº‹ã«ã—ãŸãŒã£ã¦æ‰‹ç¶šãã‚’ã—ã¦ãã ã•ã„。 ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—ã«æŠ•ç¨¿ã•ã‚ŒãŸæ—¥è¨˜ãƒ‡ãƒ¼ã‚¿ã®ã‚¨ã‚¯ã‚¹ãƒãƒ¼ãƒˆã«ã¤ã„㦠- ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—日記 ã”利用ã®ã¿ãªã•ã¾ã«ã¯ã”迷惑をãŠã‹ã‘ã„ãŸã—ã¾ã™ãŒã€ã©ã†ãžã‚ˆã‚ã—ããŠé¡˜ã„ã„ãŸã—ã¾ã™ã€‚ 2020-06-25 追記 ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—日記ã®ã‚¨ã‚¯ã‚¹ãƒãƒ¼ãƒˆãƒ‡ãƒ¼ã‚¿ã¯2020å¹´2月28
MSã®ãƒã‚¹ãƒˆWindows「Midoriã€ã®æ§‹æƒ³ãŒæ˜Žã‚‰ã‹ã«
事情ç‹ã«ã‚ˆã‚‹ã¨ã€ç±³Microsoftã¯Windowsã«ç¶šãOSã®é–‹ç™ºã‚’進ã‚ã¦ãŠã‚Šã€ã“ã®OSã¯ã€ŒMidoriã€ã®ã‚³ãƒ¼ãƒ‰ãƒãƒ¼ãƒ ã§å‘¼ã°ã‚Œã¦ã„る。ã“ã®OSã¯é–‹ç™ºè€…ã«ã©ã‚“ãªãƒ¡ãƒªãƒƒãƒˆã‚’ã‚‚ãŸã‚‰ã™ã®ã‹ã€‚ SD Timesã®ãƒ‡ãƒ“ッド・ワージントンæ°ã¯ã€MicrosoftãŒå–り組んã§ã„ã‚‹ã“ã®ãƒã‚¹ãƒˆWindowsã®å…¨ä½“åƒã«é–¢ã™ã‚‹è©³ã—ã„æƒ…å ±ã‚’å…¥æ‰‹ã—ãŸã€‚ ã“ã®é–‹ç™ºãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã¯éžå¸¸ã«é‡è¦ãªãŸã‚ã€Microsoftã¯ã‚¨ãƒªãƒƒã‚¯ãƒ»ãƒ©ãƒ€ãƒ¼æ°ã«ãã®æŒ‡æ®ã‚’託ã—ãŸã€‚åŒæ°ã¯ã‚µãƒ¼ãƒãƒ»ãƒ„ール事æ¥ã®å…ƒè²¬ä»»è€…ã§ã€ãƒ“ル・ゲイツ会長ã®è–«é™¶ã‚’直接å—ã‘ãŸã‚°ãƒ«ãƒ¼ãƒ—ã®å®ŸåŠ›è€…ã®1人ã 。 何人ã‹ã®äº‹æƒ…ç‹ãŒMidoriã®æƒ…å ±ã‚’ã“ã¤ã“ã¤ã¨é›†ã‚ã€ãれらをã¤ãªãŽåˆã‚ã›ã¦Midoriã®å…¨ä½“çš„ãªæˆ¦ç•¥ã®æ ¸å¿ƒã«è¿«ã‚ã†ã¨ã—ã¦ããŸã€‚ã ãŒã€ã“ã“ã«ãã¦ãƒ¯ãƒ¼ã‚¸ãƒ³ãƒˆãƒ³æ°ãŒä¸€æ°—ã«è„šå…‰ã‚’æµ´ã³ã‚‹ã“ã¨ã«ãªã£ãŸã€‚åž‚ãœã‚“ã®çš„ã¨ãªã£ã¦ã„ãŸã€Œãƒ–ツã€ã€ã¤ã¾ã‚ŠMicrosoftãŒåŽ³é‡ã«ç®¡ç†ã—ã¦ã„る社内
Singularity - Microsoft Research
Singularity was a multi-year research project focused on the construction of dependable systems through innovation in the areas of systems, languages, and tools. We built a research operating system prototype (called Singularity), extended programming languages, and developed new techniques and tools for specifying and verifying program behavior. Advances in languages, compilers, and tools open th
ã‚»ã‚ュア仮想化ソフト「BitVisorã€é–‹ç™ºåˆæœŸç‰ˆå…¬é–‹ | OSDN Magazine
ç‘波大å¦ã‚’ä¸å¿ƒã¨ã™ã‚‹ã€Œã‚»ã‚ュアVMプãƒã‚¸ã‚§ã‚¯ãƒˆã€ã¯2008å¹´3月19æ—¥ã€ã‚»ã‚ュリティ機能を備ãˆãŸä»®æƒ³åŒ–ソフト「BitVisorã€ã®é–‹ç™ºåˆæœŸç‰ˆã€Œ 0.2（α版）ã€ã‚’公開ã—ãŸã€‚ゲストOSã¨ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢ã®é–“ã®I/Oを監視・仮想化ã™ã‚‹ã“ã¨ã§ã€OSã«ä¾å˜ã—ãªã„ã‚»ã‚ュリティ機能を実ç¾ã—ãŸã€‚ I/Oæš—å·åŒ–ã«ã‚ˆã£ã¦ã€ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã®æš—å·åŒ–ã€ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯æš—å·åŒ–（VPN）ã€ID管ç†ãªã©ã®æ©Ÿèƒ½ã‚’仮想マシン上ã«å®Ÿè£…。PCã‚„USBメモリã®ç›—難や紛失ã€ã‚¦ã‚¤ãƒ«ã‚¹æ„ŸæŸ“ãªã©ã«ã‚ˆã‚‹æƒ…å ±æ¼ãˆã„を防æ¢ã™ã‚‹ã€‚ ã¾ãŸã€ã‚»ã‚ュリティã«å¿…è¦ãªæœ€ä½Žé™ã®I/Oã®ã¿ã‚’監視ã—ã¦ã€ãれ以外ã«ã¯é€éŽã™ã‚‹æº–パススルー型アーã‚テクãƒãƒ£ã‚’採用。VMM（仮想マシンモニタ）コアを簡略化・軽é‡åŒ–ã—ã¦ã‚ªãƒ¼ãƒãƒ¼ãƒ˜ãƒƒãƒ‰ã‚’軽減ã—ãŸã€‚ç¾åœ¨ã®ã¨ã“ã‚複数ã®ã‚²ã‚¹ãƒˆOSã®å‹•ä½œã«ã¯å¯¾å¿œã—ã¦ã„ãªã„。 ライセンスã¯BSD Licenseを採用。動作環境ã¯Intel VT（Virtuali
Plan9ã‚’é¡Œæã«ã—ãŸOSã®æ•™ç§‘書 - Plan9日記
Francisco J Ballesterosæ°ã«ã‚ˆã‚‹ãƒ†ã‚ストã®ãƒ‰ãƒ©ãƒ•ãƒˆãŒå…¬é–‹ã•ã‚ŒãŸï¼Ž Introduction to Operating Systems Abstractions Using Plan 9 from Bell Labs ã¾ã ，ã±ã‚‰ã±ã‚‰ã¨ã—ã‹ç›®ã‚’通ã—ã¦ã„ãªã„ãŒï¼Œ400ページ近ãã®åŠ´ä½œã ．目次ã¯ã“ã‚“ãªæ„Ÿã˜ã§ï¼Œä¸€é€šã‚Šã®å†…容ã¯ç¶²ç¾…ã—ã¦ã„るよã†ã ．ã™ã°ã‚‰ã—ã„． Getting started Programs and Processes Files Parent and Child Communicating Processes Network communication Resources, Files, and Names Using the Shell More tools Concurrent programming Threads and Channels User In
Atomic Commit In SQLite
1. Introduction An important feature of transactional databases like SQLite is "atomic commit". Atomic commit means that either all database changes within a single transaction occur or none of them occur. With atomic commit, it is as if many different writes to different sections of the database file occur instantaneously and simultaneously. Real hardware serializes writes to mass storage, and wr
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OS-Tan Collections Wiki
Paper: Mind the Gap: Reconnecting Architecture and OS Research - High Scalability -
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