投稿時間:2022-06-30 03:32:38 RSSフィード2022-06-30 03:00 分まとめ(34件)

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AWS	AWS Compute Blog	Use AWS Nitro Enclaves to perform computation of multiple sensitive datasets	https://aws.amazon.com/blogs/compute/leveraging-aws-nitro-enclaves-to-perform-computation-of-multiple-sensitive-datasets/	Use AWS Nitro Enclaves to perform computation of multiple sensitive datasetsThis blog post is written by Jeff Wisman Principal Solutions Architect and Andrew Lee Solutions Architect Introduction Many organizations have sensitive datasets that they do not want to share with others because of stringent security and compliance requirements However they would still like to use each other s data to perform processing and aggregation For example …	2022-06-29 17:15:14
AWS	AWS for SAP	Integrating SAP Systems with AWS Services using SAP Open Connectors	https://aws.amazon.com/blogs/awsforsap/integrating-sap-systems-with-aws-services-using-sap-open-connectors/	Integrating SAP Systems with AWS Services using SAP Open ConnectorsIntroduction SAP customers are accelerating innovation and reforming business process by using AWS services Customers such as Zalando Invista and Bizzy have modernised their SAP landscape and streamlined operations by integrating SAP with AWS technologies SAP s RISE with SAP solution provides consumption credits for SAP Business Technology Platform SAP BTP which customers can use for …	2022-06-29 17:18:34
技術ブログ	Mercari Engineering Blog	mercari.go #19 を開催しました #mercarigo	https://engineering.mercari.com/blog/entry/20220629-mercarigo-19/	hellip	2022-06-29 18:15:44
海外TECH	Ars Technica	NASA teases extraordinary images captured by its Webb telescope	https://arstechnica.com/?p=1863455	atmospheres	2022-06-29 17:45:53
海外TECH	Ars Technica	Avoiding USB-C on iPhones may get harder for Apple as Brazil considers mandate	https://arstechnica.com/?p=1863422	charger	2022-06-29 17:37:23
海外TECH	MakeUseOf	Amazon Prime Day Early Deal: Save Up to $140 on Ring Security Systems	https://www.makeuseof.com/amazon-prime-day-early-deal-ring-security-systems/	amazon	2022-06-29 17:35:14
海外TECH	MakeUseOf	What Is Desoldering Wick and When Should You Use It?	https://www.makeuseof.com/what-is-desoldering-wick-when-should-you-use-it/	useful	2022-06-29 17:30:14
海外TECH	MakeUseOf	How to Fix the PlayerUnknown's Battlegrounds TslGame.exe Error in Windows 10 & 11	https://www.makeuseof.com/windows-pubg-tslgame-exe-error-fix/	How to Fix the PlayerUnknown x s Battlegrounds TslGame exe Error in Windows amp Get out of troubleshooting hell and back in the battlegrounds with these troubleshooting tips for PUBG s TslGame exe error	2022-06-29 17:15:14
海外TECH	DEV Community	How we compress data in large projects	https://dev.to/tarantool/how-we-compress-data-in-large-projects-3767	How we compress data in large projectsHi everyone My name is Alexander Klenov and I work in Tarantool In April we released Tarantool Enterprise Edition an updated version of the Tarantool in memory computation platform The version includes several new features In this article I want to talk in detail about one of the features data compression in RAM I am going to tell you how to use it what it can and cannot do and what aspects to pay attention to How to enable data compressionIt s very easy to do just specify in the field s settings that it needs to be compressed compression lt option gt There are two compression options available •zstd •lz For example local space box schema space create space name if not exists true space format name uid type string name body type string compression zstd If your project already has some uploaded data you ll need to perform a background migration box schema func create noop is deterministic true body function t return t end space upgrade func noop format name uid type string name body type string compression zstd See the documentation for more details What can be achieved by using data compression So we ve set up the feature Let s see what it can give us As an example we ll use real data of a major telecom company The data includes thousand different JSON documents with a total volume of MB We will try out different compression mechanisms The CPU capacity in our case is GHz To see the difference better let s add compression using the external ZLIB library Testing showed the following results ZLIB external library See the source code of the test on GitHub The key conclusion is that all these three methods work differently ZSTD compresses efficiently but slowly although it unpacks documents rather quickly LZ compresses and unpacks quickly but the compression ratio is lower than in other methods Compression using ZLIB is comparable to the results of ZSTD and is not too slow but the decompression speed is pretty low Compression in a clusterIn real live projects Tarantool instances are divided by roles For our example it s important to distinguish two roles •Router•StorageCompressing cluster data is not a linear task like compressing just one node There are a couple of ways to do it depending on where the compression is performed These ways have their advantages and disadvantages Let s take a look at three examples Option one ーquick result Here compression and decompression happens in the storage This can be implemented with the functionality described in this article It s useful when you need to free a lot of space quickly with minimal changes Sounds good but this creates additional load to the storage s CPU and slows it down Moreover each replica will be repeating this compression As a result the performance of the entire cluster decreases A storage with a built in packer is more expensive to scale Instead of one additional packer you ll need to install a storage with a packer in it See an example of how to do this here The local variable enable zlib in the router must be set to false In the storage in the th line you must specify the compression type This option is good when you need to free space quickly It works well as a temporary solution but can also become a permanent one if the load allows it It s cheap and fast But if you want to keep the cluster performance on the same level it would take more effort Option two ーmaximum performanceCompression and decompression happens in the router This method offers better performance but the built in compression won t work here ーyou have to connect an external library and implement additional logic for it The master and replicas will receive already packed data As an example we ll use the router ーstorage pair described above Except here the enable zlib variable in the router must be set to true We don t need to specify the compression type in the storage in this case Advantages •We won t load the storage •We are reducing the traffic between the router and the storage •It s easier to scale ーwe just need to set up the necessary number of routers with a packer until we reach the required level of performance Disadvantages •We need to implement packer logic on the router •A delay on the router due to compression and decompression appears If we need more flexibility we can create a separate role to manage data compression It would allow configuring the number of routers separately from the number of compression instances Resources utilization will become more flexible Let s take a look at the third option Option three ーlazy compressionWe compress the data in a separate instance and decompress it in the router So we write the data to the storage as it is uncompressed Then we implement a separate packer role that goes through master storages and packs everything that is not packed If new data is uploaded too fast and you need to pack more quickly you can simply add more packer instances The replicas will receive already packed data For better understanding of this concept see an example here It can be tested with the same load test The test will show the same results as writing without compression since the compression does not occur during writing but in a separate parallel thread Advantages •There is no lag on the router for data write •Data compression scales with maximum efficiency •There are less cluster instances •We don t load the storage as in the first case Disadvantages •Additional traffic in the cluster ーbetween the storage and the packer •Additional load on the storage and one more read and write operation •We need to implement a separate role ーpacker •We need to implement unpacking logic on the router It can be useful if •You want to write data quickly ーat once without compression •You want to regulate compression speed by increasing or decreasing the number of instances and use resources more flexibly Moving compression to the routerAfter looking at different options let s see what happens when we move compression from the storage to the router since this is the most efficient method Let s build a small cluster with two instances ーa router and a storage Then we ll load it while using different compression methods Test bench implementation •Router implementation •Storage implementation •Module for write load testing Supplemental module for generating data The maximum test duration is set at seconds It is not too long to wait for the tests to finish and on the other hand it s enough time to test the load During this time we generate write requests to the router on behalf of virtual users See the console output here The results are summarized in the table below Based on the key parameters ーnumber of requests per second RPS latency http req duration and total request execution time iteration duration ーcompression on the router performs much better than compression on the storage This is primarily because ZSTD compression takes longer than ZLIB compression Also data from the router to the storage is transferring already compressed so less data is written to the storage Another advantage is that you don t need to load the storage with compression ConclusionTarantool keeps growing and gains new features The compression mechanism built into EE is useful but it can t solve everything The best way to compress data depends on the specifics of your project ーhence the recommendations for use If you do not have the need or the ability to use an external library you can use the built in LZ compression tool This method allows freeing about of the space with almost no RPS drawdown with LZ vs without compression And it can be enabled in just one click which in my opinion is a great advantage If you want better more efficient or cheaper data compression you ll need to make additional efforts which are described above You can download Tarantool on the official website and get help in our Telegram chat	2022-06-29 17:37:19
Apple	AppleInsider - Frontpage News	Check out a pre-iPhone prototype worth $500k on iPhone's 15th anniversary	https://appleinsider.com/articles/22/06/29/check-out-a-pre-iphone-prototype-worth-500k-on-iphones-15th-anniversary?utm_medium=rss	Check out a pre iPhone prototype worth k on iPhone x s th anniversaryYouTube personality Luke Miani has gotten his hands on a handful of iPhone prototypes with pre release software and altered designs A prototype iPhone G Image source Luke MianiThe original iPhone was first put on sale on June In Luke Miani s latest video he shows off several prototype devices with one dating back to Read more	2022-06-29 17:30:04
Apple	AppleInsider - Frontpage News	What to expect from Apple's Q3 2022 earnings report on July 28	https://appleinsider.com/articles/22/06/29/what-to-expect-from-apples-q3-2022-earnings-report-on-july-28?utm_medium=rss	What to expect from Apple x s Q earnings report on July Apple s June earnings are coming and the company has already warned about up to an billion revenue hit from various factors Here s what to expect from the iPhone maker during its Q Apple moneyThe company will report its fiscal results for its thirds quarter which corresponds to the second calendar quarter of the year on July before conducting a call with analysts Apple CEO Tim Cook and CFO Luca Maestri will offer color on the results and expectations for the future Read more	2022-06-29 17:01:57
海外TECH	Engadget	'Crossy Road' creator Andy Sum's next game will arrive on July 20th	https://www.engadget.com/tombstar-steam-crossy-road-no-more-robots-174950854.html?src=rss	x Crossy Road x creator Andy Sum x s next game will arrive on July thPublisher No More Robots has announced that the next game from Crossy Road creator Andy Sum will be released on Steam on July th While Crossy Road is a hit arcade style title in the vein of Frogger TombStar takes its cue from bullet hell roguelikes such as Enter the Gungeon and The Binding of Isaac TombStar which was announced in nbsp is a colorful space Western top down shooter There are three characters to choose from each with their own playstyle You ll pick up abilities weapons and perks to aid you in battle against the Grimheart Gang Each of the worlds has a boss but since the levels are procedurally generated each run will be different	2022-06-29 17:49:50
海外TECH	CodeProject Latest Articles	A Static Analysis Tool for C++	https://www.codeproject.com/Articles/5246833/A-Static-Analysis-Tool-for-Cplusplus	automating	2022-06-29 17:07:00
金融	金融庁ホームページ	金融庁職員の新型コロナウイルス感染について公表しました。	https://www.fsa.go.jp/news/r3/sonota/20220629.html	新型コロナウイルス	2022-06-29 18:40:00
金融	金融庁ホームページ	金融庁の業務委託先の従業員の新型コロナウイルス感染について公表しました。	https://www.fsa.go.jp/news/r3/sonota/20220629-2.html	新型コロナウイルス	2022-06-29 18:40:00
ニュース	@日本経済新聞 電子版	テスラ、米国内の自動運転拠点を閉鎖　200人解雇 https://t.co/R4ylxwNlVY	https://twitter.com/nikkei/statuses/1542196363357585409	自動運転	2022-06-29 17:20:40
ニュース	@日本経済新聞 電子版	対強権主義、価値観超え結束　民主主義の影響力に陰り https://t.co/RCjBvAG8AC	https://twitter.com/nikkei/statuses/1542191865096654848	民主主義	2022-06-29 17:02:47
ニュース	@日本経済新聞 電子版	電力融通「西→東」に制約　送電網増強遅れ、逼迫の一因 https://t.co/HOEa1A0ciL	https://twitter.com/nikkei/statuses/1542191864027131904	電力	2022-06-29 17:02:47
ニュース	@日本経済新聞 電子版	債務のGDP比「263%」　財政再建、具体像先送り https://t.co/69JgKTiqkS	https://twitter.com/nikkei/statuses/1542191863020433408	財政再建	2022-06-29 17:02:47
ニュース	@日本経済新聞 電子版	愛称は「育業」・「マ」の店舗ロゴ・広島サミット https://t.co/jgFq2iRooC	https://twitter.com/nikkei/statuses/1542191861963837440	愛称	2022-06-29 17:02:47
ニュース	@日本経済新聞 電子版	富士フイルム、バイオ薬の生産4倍　欧米で2000億円投資 https://t.co/4InxpMzpZy	https://twitter.com/nikkei/statuses/1542191859547930624	富士フイルム	2022-06-29 17:02:46
ニュース	BBC News - Home	Wimbledon 2022: Emma Raducanu loses to Caroline Garcia at All England Club	https://www.bbc.co.uk/sport/tennis/61976135?at_medium=RSS&at_campaign=KARANGA	Wimbledon Emma Raducanu loses to Caroline Garcia at All England ClubEmma Raducanu s Wimbledon is over after being outplayed by France s Caroline Garcia in a second round match that left Centre Court deflated	2022-06-29 17:39:06
ニュース	BBC News - Home	Heinz products off Tesco shelves after pricing dispute	https://www.bbc.co.uk/news/business-61978595?at_medium=RSS&at_campaign=KARANGA	price	2022-06-29 17:04:33
ニュース	BBC News - Home	Dame Deborah James: Tributes paid to 'unfalteringly brave' cancer campaigner	https://www.bbc.co.uk/news/uk-61980343?at_medium=RSS&at_campaign=KARANGA	mother	2022-06-29 17:38:45
ニュース	BBC News - Home	BBC's Nick Watt felt like prey during protester chase, court hears	https://www.bbc.co.uk/news/uk-england-london-61987955?at_medium=RSS&at_campaign=KARANGA	lockdown	2022-06-29 17:22:32
ビジネス	ダイヤモンド・オンライン - 新着記事	お願い上手は「来てください」を何と言い換える？#来訪のお願い6選 - オトナ女子のすてきな語彙力帳	https://diamond.jp/articles/-/305506	語彙力	2022-06-30 02:55:00
ビジネス	ダイヤモンド・オンライン - 新着記事	「モロッコってどんな国？」2分で学ぶ国際社会 - 読むだけで世界地図が頭に入る本	https://diamond.jp/articles/-/304341		2022-06-30 02:50:00
ビジネス	ダイヤモンド・オンライン - 新着記事	本当に話しかけやすく、部下に慕われるリーダーがやっていること - ありのままの自分で人がついてくる リーダーの習慣	https://diamond.jp/articles/-/305251	部下	2022-06-30 02:45:00
ビジネス	ダイヤモンド・オンライン - 新着記事	【Twitterフォロワー30万人超の精神科医が教える】 お金を残すのでも、名を残すのでもなく、もっとも大切なこと - 精神科医Tomyが教える 心の荷物の手放し方	https://diamond.jp/articles/-/305647	【Twitterフォロワー万人超の精神科医が教える】お金を残すのでも、名を残すのでもなく、もっとも大切なこと精神科医Tomyが教える心の荷物の手放し方生きていれば、不安や悩みは尽きない。	2022-06-30 02:40:00
ビジネス	ダイヤモンド・オンライン - 新着記事	真実とフェイク、どちらが多くリツイートされる？Twitter大規模調査の結果 - デマの影響力	https://diamond.jp/articles/-/304835	twitter	2022-06-30 02:35:00
ビジネス	ダイヤモンド・オンライン - 新着記事	【寅の日に1日1分強運貯金】 見るだけで、突然、奇跡が起こる！ 《支那津比古神》×《春》の 泥沼からさわやかな風に乗る習慣とは？ - 1日1分見るだけで願いが叶う！ふくふく開運絵馬	https://diamond.jp/articles/-/304591	【寅の日に日分強運貯金】見るだけで、突然、奇跡が起こる《支那津比古神》×《春》の泥沼からさわやかな風に乗る習慣とは日分見るだけで願いが叶うふくふく開運絵馬見るだけで「癒された」「ホッとした」「本当にいいことが起こった」と話題沸騰刷Amazon・楽天位。	2022-06-30 02:30:00
ビジネス	ダイヤモンド・オンライン - 新着記事	尿一滴でがんが判明!?線虫がん検査の「意外すぎるデメリット」とは？【書籍オンライン編集部セレクション】 - 40歳からの予防医学	https://diamond.jp/articles/-/305426	予防医学	2022-06-30 02:25:00
ビジネス	ダイヤモンド・オンライン - 新着記事	伝統工芸とテクノロジーの融合で、思いがけない成果につながる - 日本の美意識で世界初に挑む	https://diamond.jp/articles/-/305489		2022-06-30 02:20:00
ビジネス	ダイヤモンド・オンライン - 新着記事	脳の神経回路を発達させる効果的な方法 - 勉強が面白くなる瞬間	https://diamond.jp/articles/-/305685	韓国で社会現象を巻き起こした『勉強が面白くなる瞬間』。	2022-06-30 02:15:00