投稿時間:2021-05-23 03:15:06 RSSフィード2021-05-23 03:00 分まとめ(18件)

カテゴリー等	サイト名等	記事タイトル・トレンドワード等	リンクURL	頻出ワード・要約等/検索ボリューム	登録日
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	WordPressで「kill」という単語がが入った関数	https://teratail.com/questions/339822?rss=all	WordPressで「kill」という単語がが入った関数WordPressについて調べていて、「kill」という単語がが入った関数を見かけたのですが、今探しても見つかりません。	2021-05-23 02:14:50
Ruby	Rubyタグが付けられた新着投稿 - Qiita	esa.io.tar.gz プログラミング	https://qiita.com/NlKOLAYTACH/items/8deccee380aae27f4068	esaiotargzプログラミングesaiotargzesaiodemasterzipesaiofeedbacksyncmasterzipesaiohelloesamasterzipesaiohtmljsprojsmasterzipesaioinuiconrailsmasterzipesaiomiddlemanesamasterzipesaionyauthmasterzipesaioomniauthesamasterziptargzファイルを介して圧縮されたesaioパケット記事で取り上げたソフトウェアのバージョンは何か、記事中のコードを実行するためにはどんな手順が必要かを書いておくと、自分の環境に当てはまるかどうかを後から読む人が判断しやすくなります。	2021-05-23 02:31:32
Linux	CentOSタグが付けられた新着投稿 - Qiita	TeX Live の ISOイメージを、丸々 RPM にしてみる（platex を組み込む）	https://qiita.com/shinya-kurioka/items/65539e8c093e36d37d70	RPMは、ISOをchrootした状態でインストールしたイメージを丸々固めているので、usrbinなどにはインストールされません。	2021-05-23 02:57:24
海外TECH	DEV Community	Virtualizing the CPU	https://dev.to/thesystemsprogrammer/virtualizing-the-cpu-30a8	Virtualizing the CPUHave you ever wondered how your core MacBook is able to run more than programs at once Each core is executing one instruction at a time it s bizarre to me that it s able to run more than applications That s the magic of the operating system The most fundamental piece of hardware in a computer is its CPU The CPU central processing unit executes instructions given to it and performs logic computations very quickly In this article we ll talk about how the operating system makes it seem like all the programs on your computer have exclusive access to the CPU resource when in reality it s shared across all of them To do this the operating system uses an abstraction called a process A process is an executing instance of a program Each process is given some time to use the CPU and then that access is revoked and another process is given some time to use the CPU This happens so quickly humans don t notice a pause when using these programs Process InitializationSo how does a program get run in the first place A program is just a file with data in it The data is stored on a computer s disk To run a program the operating system must first take the data on disk and move it to memory since a CPU cannot directly access the disk For a CPU to interact with the disk it must initiate an I O request which at a high level involves sending messages back and forth between itself and the disk s controller The I O is complete once the data is moved from disk into memory Additionally the operating system will allocate some stack and heap memory for the process to use during run time Once a process has been created it is put into the READY state The operating system groups processes into different states which can be generically categorized as READY RUNNING or BLOCKED READY implies that the operating system can schedule it to be run on a CPU Once the operating system has scheduled a program to run it is put in the RUNNING state as its instructions are executed on the CPU Now say the program wants to interact with disk instead of waiting for the disk I O to complete which can take awhile the process is put in a BLOCKED state in which it is descheduled from the CPU During this time another READY process can run on the CPU Once disk I O is completed the process is put back into the READY state where the operating system can choose to schedule it again Resource SharingWait a minute if the operating system schedules a process to run on the CPU and the CPU is running the instructions of that process how is the operating system able to tell the CPU to start executing the instructions of a different process What if that process runs in an infinite loop does that mean no other processes on the operating system will be able to run After all the operating system is also just software running on the CPU The answer to this question is a hardware based timer interrupt This timer interrupt runs at a predetermined interval and when it is run the CPU jumps to a specific location in memory and starts executing instructions at that memory address This memory address is the operating systems timer interrupt handler At a high level the interrupt handler will determine whether or not the currently running process has been running too long and needs to be descheduled in favor of another READY process If that s the case then the operating system will make the switch But what does “make the switch even mean The operating system has to take the state of the currently running process save it into the operating system s memory take the state of the to be scheduled process from the operating system s memory load it and then run it on the CPU The state that we re referring to here is the CPUs registers When a CPU does logical operations it operates on values stored in registers on the CPU Things like the memory address of the currently executing instruction are stored in a register SchedulingOne thing we didn t talk about in detail is how the operating system decides what program should be run next Scheduling is a widely studied discipline but we will only touch a brief part of it The goals of an operating system scheduler are generally to minimize the amount of idle time the amount of time a process isn t running while also ensuring fairness all processes get an equal chunk of time to run Let s look at a couple scheduling policies and understand their pros and cons First in First Out This implies that a process that is scheduled will run to completion before another process is scheduled on the operating system The benefit is that there is no overhead of context switching saving registers into memory and then loading them again later so it may minimize the amount of time necessary for all programs to reach completion However it s not necessarily fair What happens if program A is constantly running and never stops Program B which was added after program A will never run Round Robin Round robin works by always switching the scheduled process during a timer interrupt It gives each process a time slice and once that time slice has expired the next process in line is scheduled This scheduling policy is the most fair but the constant context switches could drastically degrade performance ConclusionNow that we understand how the physical resource of the CPU is virtualized by the operating system it should make more sense how the operating system is able to give the illusion that all processes have exclusive access to the CPU One burning question you may have is how does the operating give each process the illusion that it each has its own address space If you have any questions don t hesitate to email me at contact thesystemsprogrammer com or DM me on Twitter asystemshacker	2021-05-22 17:40:51
海外TECH	DEV Community	⭐Building a Quiz Application in Python [video]	https://dev.to/thenerdydev/building-a-quiz-application-in-python-video-17k2	Building a Quiz Application in Python video In this video we will learn how we can create a Quiz Application using Python Follow me on Twitter Instagram YouTube PS Make sure to subscribe to my YouTube Channel for FREE content on Web Development and loads of other technologies	2021-05-22 17:18:54
Apple	AppleInsider - Frontpage News	Apple Silicon M1 24-inch iMac review: Computing power for the masses	https://appleinsider.com/articles/21/05/22/apple-silicon-m1-24-inch-imac-review-computing-power-for-the-masses?utm_medium=rss	Apple Silicon M inch iMac review Computing power for the massesStop us if you ve heard this one before ーApple has a new line of colorful iMacs and they re probably going to change computing forever Apple s new inch iMacA month ago Apple continued the inexorable extermination of Intel on the Mac The latest Apple Silicon Mac is an update to the iMac lineup but instead of reusing the enclosure from the previous processor architecture like it has done in the past this time Apple has gone all out to rethink how the iMac looks and feels in its new inch model Read more	2021-05-22 17:42:03
Apple	AppleInsider - Frontpage News	HomePod family will support Apple Music Lossless eventually	https://appleinsider.com/articles/21/05/22/homepod-family-will-support-apple-music-lossless-eventually?utm_medium=rss	HomePod family will support Apple Music Lossless eventuallyThe HomePod and HomePod mini won t play Apple Music Lossless audio at launch but will at a later time according to a support page update providing details on the streaming music feature s functionality The HomePod mini left and the HomePodApple s unveiling of Apple Music Lossless and Spatial audio on Monday a feature that will provide high fidelity versions of tracks to subscribers instead of the standard bitrate versions streamed as standard To clarify some of the questions surrounding the support of its own products Apple updated a support page on Saturday to offer more insight Read more	2021-05-22 17:56:09
海外TECH	Engadget	Virgin Galactic completes rocket-powered test flight after months of delays	https://www.engadget.com/virgin-galactic-completes-rocket-powered-test-flight-172956795.html	computer	2021-05-22 17:29:56
海外TECH	CodeProject Latest Articles	Logger for Log4Net	https://www.codeproject.com/Tips/1135742/Logger-for-Log-Net	lognetsome	2021-05-22 17:27:00
ニュース	BBC News - Home	Covid vaccination certificates hit by security glitch	https://www.bbc.co.uk/news/uk-scotland-57208607	status	2021-05-22 17:49:12
ビジネス	ダイヤモンド・オンライン - 新着記事	【テレビ朝日系『羽鳥慎一 モーニングショー』でも活躍！】 ハーバード首席卒の「発信力」とは？ - 私がハーバードで学んだ世界最高の「考える力」	https://diamond.jp/articles/-/270461	【テレビ朝日系『羽鳥慎一モーニングショー』でも活躍】ハーバード首席卒の「発信力」とは私がハーバードで学んだ世界最高の「考える力」大分県で生まれ育ち、小・中・高と地元の公立校、塾通いも海外留学経験もないまま、ハーバード大学に現役合格した『私がハーバードで学んだ世界最高の「考える力」』の著者・廣津留すみれさん。	2021-05-23 02:55:00
ビジネス	ダイヤモンド・オンライン - 新着記事	「なんでも自分でやろう」とする人が仕事で成果を出せない根本原因 - 世界一のプロゲーマーがやっている 努力2.0	https://diamond.jp/articles/-/270191	適応	2021-05-23 02:50:00
ビジネス	ダイヤモンド・オンライン - 新着記事	漫画家・弘兼憲史が教える 「上機嫌でいるために大切なこと」とは？ - 死ぬまで上機嫌。	https://diamond.jp/articles/-/270587	人生は考え方次第で、上機嫌にも、不機嫌にもなる。	2021-05-23 02:45:00
ビジネス	ダイヤモンド・オンライン - 新着記事	【土日に絶対やせる！】 家で・テレビを見ながら・ 通勤通学・仕事中に 3歩目の歩幅を 広げるだけでやせる？ 6万人指導のプロが 次々劇変させた 18名の“美女と野獣” 衝撃度ランキング - 医者が絶賛する歩き方 やせる3拍子ウォーク	https://diamond.jp/articles/-/270833	【土日に絶対やせる】家で・テレビを見ながら・通勤通学・仕事中に歩目の歩幅を広げるだけでやせる万人指導のプロが次々劇変させた名の“美女と野獣衝撃度ランキング医者が絶賛する歩き方やせる拍子ウォークコロナでどこにも行けない。	2021-05-23 02:40:00
ビジネス	ダイヤモンド・オンライン - 新着記事	他人って ガッカリさせていいのよ - 精神科医Tomyが教える　１秒で不安が吹き飛ぶ言葉	https://diamond.jp/articles/-/270697	他人ってガッカリさせていいのよ精神科医Tomyが教える秒で不安が吹き飛ぶ言葉シリーズ万部突破の火付け役となった第弾『精神科医Tomyが教える秒で不安が吹き飛ぶ言葉』。	2021-05-23 02:35:00
ビジネス	ダイヤモンド・オンライン - 新着記事	【齋藤孝教授×安住紳一郎アナの話すチカラ】 相手になめられてしまう話し方とは？ - 『話すチカラ』　齋藤孝　明治大学文学部教授　×　安住紳一郎　TBSアナウンサー	https://diamond.jp/articles/-/271380	【齋藤孝教授×安住紳一郎アナの話すチカラ】相手になめられてしまう話し方とは『話すチカラ』齋藤孝明治大学文学部教授×安住紳一郎TBSアナウンサーテレビでもおなじみの齋藤孝明治大学文学部教授と、『ぴったんこカン・カン』『中居正広の金曜日のスマイルたちへ』『輝く日本レコード大賞』など数々の人気番組の司会者として知られる安住紳一郎TBSアナウンサー。	2021-05-23 02:30:00
ビジネス	ダイヤモンド・オンライン - 新着記事	2021年、アメリカで数兆匹の「素数ゼミ」が大量発生…その「納得の理由」とは？ - とてつもない数学	https://diamond.jp/articles/-/271940	年、アメリカで数兆匹の「素数ゼミ」が大量発生…その「納得の理由」とはとてつもない数学天才数学者たちの知性の煌めき、絵画や音楽などの背景にある芸術性、AIやビッグデータを支える有用性…。	2021-05-23 02:25:00
海外TECH	reddit	DWG KIA vs. MAD Lions / MSI 2021 - Semi-Final / Post-Match Discussion	https://www.reddit.com/r/leagueoflegends/comments/nin0o0/dwg_kia_vs_mad_lions_msi_2021_semifinal_postmatch/	DWG KIA vs MAD Lions MSI Semi Final Post Match DiscussionMSI PLAYOFFS Official page Leaguepedia Liquipedia Live Discussion Eventvods com New to LoL DWG KIA MAD Lions DAMWON KIA advance to face Royal Never Give Up in the MSI finals tomorrow DK Leaguepedia Liquipedia Website Twitter Facebook YouTube MAD Leaguepedia Liquipedia Discord Website Twitter Facebook YouTube MATCH DK vs MAD Winner DWG KIA in m Match History Bans Bans G K T D B DK lucian lee sin thresh nautilus wukong k H H C B MAD renekton senna morgana orianna sion k M I DK vs MAD Khan ornn TOP jayce Armut Canyon rumble JNG udyr Elyoya ShowMaker yone MID zoe Humanoid Ghost varus BOT kaisa Carzzy BeryL tahmkench SUP rell Kaiser MATCH MAD vs DK Winner MAD Lions in m Match History Bans Bans G K T D B MAD renekton morgana varus zoe leona k I H O C B C DK lucian thresh senna twisted fate orianna k H MAD vs DK Armut lee sin TOP gnar Khan Elyoya volibear JNG udyr Canyon Humanoid sylas MID viktor ShowMaker Carzzy xayah BOT kaisa Ghost Kaiser braum SUP nautilus BeryL MATCH DK vs MAD Winner MAD Lions in m Match History Bans Bans G K T D B DK lucian lee sin thresh sylas twisted fate k O H MAD renekton tahmkench morgana sion zoe k M H I B I I B DK vs MAD Khan gnar TOP wukong Armut Canyon rumble JNG udyr Elyoya ShowMaker jayce MID orianna Humanoid Ghost varus BOT kaisa Carzzy BeryL nautilus SUP leona Kaiser MATCH DK vs MAD Winner DWG KIA in m Match History Bans Bans G K T D B DK thresh lucian varus orianna ryze k H O H I B MAD renekton tahmkench morgana zoe jayce k None DK vs MAD Khan lee sin TOP gnar Armut Canyon rumble JNG udyr Elyoya ShowMaker sylas MID viktor Humanoid Ghost tristana BOT kaisa Carzzy BeryL rell SUP leona Kaiser MATCH MAD vs DK Winner DWG KIA in m Match History Bans Bans G K T D B MAD renekton morgana tahmkench sion rell k H DK thresh lee sin lucian twisted fate orianna k I O H C MAD vs DK Armut gnar TOP jayce Khan Elyoya udyr JNG rumble Canyon Humanoid sylas MID zoe ShowMaker Carzzy kaisa BOT tristana Ghost Kaiser leona SUP alistar BeryL Patch Viego amp Gwen disabled This thread was created by the Post Match Team submitted by u Soul Sleepwhale to r leagueoflegends link comments	2021-05-22 17:01:16