投稿時間:2021-10-17 08:10:01 RSSフィード2021-10-17 08:00 分まとめ(10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
IT	ITmedia 総合記事一覧	[ITmedia News] Steamではブロックチェーン採用ゲーム禁止　Valveが規約に文言追加	https://www.itmedia.co.jp/news/articles/2110/17/news022.html	itmedianewssteam	2021-10-17 07:47:00
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	Laravelでphp artisan db:seedが実行されない	https://teratail.com/questions/364784?rss=all	Laravelでphpartisandbseedが実行されない前提・実現したいことAWSでPHPLaravelを使い家計簿アプリを作りたいと思っています。	2021-10-17 07:48:03
Program	[全てのタグ]の新着質問一覧｜teratail（テラテイル）	seleniumでログインをしようとすると弾かれます	https://teratail.com/questions/364783?rss=all	セキュリティチェックは手動で行い、ログインしようとすると『ただいまの操作はお受けできませんでした。	2021-10-17 07:15:02
Ruby	Railsタグが付けられた新着投稿 - Qiita	Rails Cloud9からローカル環境へ（備忘録）	https://qiita.com/nofate8785/items/d41a683c9d96fcb37fdc	RailsCloudからローカル環境へ備忘録初めて投稿AWSの無料期間がもうそろそろ終わるので、Cloudにあったプロジェクトをローカル環境に移管した。	2021-10-17 07:39:29
海外TECH	DEV Community	Advanced C++: Arena Allocation	https://dev.to/aboss123/advanced-c-arena-allocation-3580	Advanced C Arena AllocationHi Everyone I m going to starting a mini series of articles about Advanced C Programming concepts that are used in a lot of real projects Today s topic is Arena Allocation Code snippets and images posted in this article are under the MIT License Memory management is a pain isn t it When working in garbage collected languages such as Java or Go you may be mostly free from dealing closely with memory but in languages like C and C memory usually causes a lot of problems especially since you have a lot of power to manipulate it So what s the best allocator There is no number best allocator in every scenario rather if you wanted the best allocator the programmer is the best allocator because they know exactly what the program will do and thus know the best way to allocate memory Arena AllocationInstead of allocating pointers using malloc or new we can create our own allocator known as the arena allocator This kind of allocation involves allocating a large chunk of memory before the logic of your program executes for example GiB of memory Wait hold up this sound completely unreasonable right Yes it is but the operating system knows this too so it allows overcommitting memory Linux Overcommit Mac Overcommit Windows OvercommitNOTE Windows doesn t have the same ability to overcommit memory rather large amounts of memory can be reserved and then requestedWhen you have your large memory allocated what do you do with it When to use arena allocationEach specific case cannot be listed as it s different for each program but here are some reasons I use it Program run time is short and I want fast allocationCreate an optimized allocator that saves on performance and flexibility Create an allocatorHere is the way I set up my arena allocator for my language Jet The way this is setup is pretty generic it allows me to create multiple allocators for different parts of my program which is general pretty common when using arena allocation For example Part A of Program GiBPart B of Program GiBPart C of Program GiBThis is how the large pool of memory can be distributed and is useful if you know which part allocates more memory ConclusionArena allocation is just another tool in the box that will help you advance your knowledge of low level programming in C Understanding allocators behind the scenes will help you in general for any kind of endeavor	2021-10-16 22:33:56
海外科学	NYT > Science	Democrats Weigh Carbon Tax After Manchin Rejects Key Climate Provision	https://www.nytimes.com/2021/10/16/climate/democrats-carbon-tax-climate.html	Democrats Weigh Carbon Tax After Manchin Rejects Key Climate ProvisionFaced with the likely demise of a central pillar of President Biden s agenda the White House and outraged lawmakers are scrambling to find alternatives	2021-10-16 22:41:14
ニュース	BBC News - Home	Britain's Norrie reaches Indian Wells final with win over Dimitrov	https://www.bbc.co.uk/sport/tennis/58940867?at_medium=RSS&at_campaign=KARANGA	Britain x s Norrie reaches Indian Wells final with win over DimitrovBritain s Cameron Norrie reaches his first Masters final at Indian Wells as he beats Bulgarian Grigor Dimitrov in straight sets	2021-10-16 22:36:12
ビジネス	東洋経済オンライン	日本人は賃金格差の原因をイマイチわかってない いかに労働規制で対処しても問題は解決されない | 野口悠紀雄「経済最前線の先を見る」 | 東洋経済オンライン	https://toyokeizai.net/articles/-/461635?utm_source=rss&utm_medium=http&utm_campaign=link_back	所得格差	2021-10-17 08:00:00
ビジネス	東洋経済オンライン	最後の宴も終焉へ､テレビメーカーの｢生存条件｣ 日本勢は世界で再び存在感を高められるか | IT･電機･半導体･部品 | 東洋経済オンライン	https://toyokeizai.net/articles/-/462078?utm_source=rss&utm_medium=http&utm_campaign=link_back	東京五輪	2021-10-17 07:30:00
海外TECH	reddit	Reddit channel posts stories of anti-vaxxers dying of Covid, scaring fence-sitters into getting the shot	https://www.reddit.com/r/HermanCainAward/comments/q9lqhp/reddit_channel_posts_stories_of_antivaxxers_dying/	Reddit channel posts stories of anti vaxxers dying of Covid scaring fence sitters into getting the shot submitted by u RockyMoose to r HermanCainAward link comments	2021-10-16 22:08:54