| Program |
[全てのタグ]の新着質問一覧｜teratail（テラテイル） |
RのLatticeパッケージでのヒストグラム作成 |
https://teratail.com/questions/371405?rss=all
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RのLatticeパッケージでのヒストグラム作成前提・実現したいことRのヒストグラム作成で質問です。 |
2021-11-29 03:28:13 |
| 海外TECH |
MakeUseOf |
Your Roku Has No Sound? How to Fix It... |
https://www.makeuseof.com/roku-no-sound-fixes/
|
audio |
2021-11-28 18:46:11 |
| 海外TECH |
DEV Community |
Let's talk quality - Part 3 |
https://dev.to/sociablesteve/lets-talk-quality-part-3-4ah5
|
Let x s talk quality Part In my first post I covered Operational Quality at a high level The reality is that you might have written the cleanest nicest code by all the metrics covered in my last post but that doesn t mean you re being efficient with the resources you have available As you may recall one of the aspects of a high quality system is that it s easily scale able In my mind this means there s an efficient use of resources so you can scale both horizontally more instances and vertically bigger instances as necessity requires I ve seen many examples of software engineers focusing only on the quality of the code making their own lives easier and ignoring the operational concerns until it s too late and systems have already broken down In this post I ll discuss what metrics I think are good to measure and feed into a more holistic quality viewpoint What is Operational Quality When we write software we know that it ll need to run somewhere That might be on a server a PC a mobile device an embedded device or somewhere else Operational Quality is about how efficiently the resources in that execution environment are used and how effective the application is at working with those resources when things need to scale We also know that things will always go wrong no matter how hard you try to make sure your system is robust enough so there s a question around how well you can understand when things are going wrong what s going wrong and where it s going wrong In my mind this includes a whole range of things and a starting point of things to consider could be Memory usageCPU usageNetwork usageDisk usageStart up timesResponsivenessAppropriate LoggingMonitoring and AlertingThere s quite a bit to measure here Some of this can be automatically tracked and some requires a bit more insight from people to understand what appropriate means Let s talk about how I d measure these ToolingI m certainly not an expert in this area and most of my experience is working with server environments rather than desktop or mobile applications That said my go to tooling for understanding resource usage seems to work for all these application and that s NewRelic This gives details on resource usage and lets you start getting error traces For a less costly setup in server environments I tend towards a couple of other stacks Prometheus AlertsManager Grafana for resource usage monitoring and alertingElasticSearch LogStash Kibana for log aggregation and interrogationUnderstanding resource usage for desktop and mobile apps may require may require more specialised knowledge that I have at the moment but NewRelic claims to have you covered What is Appropriate Logging Appropriate logging in this case is about getting enough information to understand where errors are occurring but not so many that your systems are getting overwhelmed The actual amount of logs will vary from application to application and there s no real studies I can point at as to what good looks like The real test of if logging is appropriate or not comes from how easily things are investigated in an emergent situation e g live incident or suspected issue This leads nicely on to the next section Handling Live ProblemsWhile you may have the most efficient resource usage possible and can scale like a pro there will always be times when things break How you handle them is another important operational concern and the metrics that can be gathered from incident handling can help to understand quality in more depth Metrics around incidents include things like Mean time to acknowledge MTTA How long did it take to know there was an issue and for the first response to acknowledge they were dealing with the issue Mean time to idenfity MTTI How long did it take to identify the cause of the issueMean time to resolve MTTR How long did it take to resolve the issue This is a bit trickier to define and could mean either service is restored OR the permanent fix is releasedWhile these metrics themselves aren t really a point of consideration in quality any retrospective on incidents should aim to understand if the monitoring alerting and logging were at the right kind of level to help resolve the incident effectively This is where the feedback of the quality around these metrics really comes from SummaryThere s a lot of variables in measuring resource usage and different environments will require different understanding and tooling Your best bet is working with your local friendly SRE to see what they can do to help you get the metrics you need In this post we ve looked beyond just development quality and started to understand that how our systems run is equally important to a more holistic view of quality Even if your specialty isn t operational it ll pay dividends in the future to at least understand what s happening to your software in the wild |
2021-11-28 18:12:12 |
| Apple |
AppleInsider - Frontpage News |
HexGaming Ultimate Controller review: A competition-level controller that works with Apple gear |
https://appleinsider.com/articles/21/11/28/hexgaming-ultimate-controller-review-a-competition-level-controller-that-works-with-apple-gear?utm_medium=rss
|
HexGaming Ultimate Controller review A competition level controller that works with Apple gearThe HexGaming Ultimate Controller lives up to its name with a fully customizable design swappable joysticks and programmable paddle buttons It also happens to be compatible with Apple s well connected ecosystem The front of our customized HexGaming Ultimate ControllerAn upgraded PS controller Read more |
2021-11-28 18:17:15 |
| ニュース |
BBC News - Home |
Covid: Third case of Omicron variant detected in the UK |
https://www.bbc.co.uk/news/uk-59453744?at_medium=RSS&at_campaign=KARANGA
|
agency |
2021-11-28 18:55:05 |
| ニュース |
BBC News - Home |
Channel migrants: France wants 'serious' talks with UK |
https://www.bbc.co.uk/news/world-europe-59454135?at_medium=RSS&at_campaign=KARANGA
|
british |
2021-11-28 18:39:13 |
| ニュース |
BBC News - Home |
Storm Arwen: Thousands facing third night without power |
https://www.bbc.co.uk/news/uk-scotland-59451287?at_medium=RSS&at_campaign=KARANGA
|
disruption |
2021-11-28 18:22:36 |
| ニュース |
BBC News - Home |
Chelsea 1-1 Man Utd: Jorginho recovers from mistake to earn Blues a point |
https://www.bbc.co.uk/sport/football/59363467?at_medium=RSS&at_campaign=KARANGA
|
Chelsea Man Utd Jorginho recovers from mistake to earn Blues a pointManchester United prepare for the arrival of interim manager Ralf Rangnick by earning a battling point against Premier League leaders Chelsea at Stamford Bridge |
2021-11-28 18:51:19 |
| ビジネス |
ダイヤモンド・オンライン - 新着記事 |
トヨタ・カローラクロス、カローラ初のSUV登場！伸びやかなサイズが魅力【試乗記】 - CAR and DRIVER 注目カー・ファイル |
https://diamond.jp/articles/-/288690
|
トヨタ・カローラクロス、カローラ初のSUV登場伸びやかなサイズが魅力【試乗記】CARandDRIVER注目カー・ファイルカローラは年に誕生。 |
2021-11-29 03:50:00 |
| ビジネス |
ダイヤモンド・オンライン - 新着記事 |
【お寺の掲示板97】倒れたままがいけないのだ - 「お寺の掲示板」の深～いお言葉 |
https://diamond.jp/articles/-/288646
|
正統カリフ |
2021-11-29 03:45:00 |
| ビジネス |
ダイヤモンド・オンライン - 新着記事 |
カリフォルニアドリームの新潮流、沿岸離れ進む - WSJ PickUp |
https://diamond.jp/articles/-/288810
|
wsjpickup |
2021-11-29 03:40:00 |
| ビジネス |
ダイヤモンド・オンライン - 新着記事 |
雇用調整助成金の効果、政府はデータに基づく科学的政策評価を - 数字は語る |
https://diamond.jp/articles/-/288441
|
厚生労働省 |
2021-11-29 03:35:00 |
| ビジネス |
ダイヤモンド・オンライン - 新着記事 |
保険商品開発期間が2年から2カ月に短縮！フィナテキストが仕掛ける保険業界DX - ダイヤモンド保険ラボ |
https://diamond.jp/articles/-/288813
|
inspire |
2021-11-29 03:30:00 |
| ビジネス |
ダイヤモンド・オンライン - 新着記事 |
供給不足の解消いつ？ 予想が外れる訳 - WSJ PickUp |
https://diamond.jp/articles/-/288811
|
wsjpickup |
2021-11-29 03:25:00 |
| ビジネス |
ダイヤモンド・オンライン - 新着記事 |
欧州コロナ再拡大、冬到来で迫られる選択 - WSJ PickUp |
https://diamond.jp/articles/-/288812
|
wsjpickupeu |
2021-11-29 03:20:00 |
| ビジネス |
ダイヤモンド・オンライン - 新着記事 |
ひろゆきが語る「夢を叶える人の考え方」ベスト1 - 1％の努力 |
https://diamond.jp/articles/-/287603
|
youtube |
2021-11-29 03:15:00 |
| ビジネス |
ダイヤモンド・オンライン - 新着記事 |
なぜ、日本企業における従業員エンゲージメントは世界一低いのか？ - アーキテクト思考 |
https://diamond.jp/articles/-/288662
|
|
2021-11-29 03:10:00 |
| ビジネス |
ダイヤモンド・オンライン - 新着記事 |
【第一人者のコピーライティング技術100】 人を動かす文章の構造「PASONAの法則」とは？ - コピーライティング技術大全 |
https://diamond.jp/articles/-/288207
|
【第一人者のコピーライティング技術】人を動かす文章の構造「PASONAの法則」とはコピーライティング技術大全発売前から話題沸騰Amazonランキング第位広告・宣伝、。 |
2021-11-29 03:05:00 |
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