Google IO 2012
Follow the slides at http://goo.gl/U2vuT Performance optimization... what's that? Today, we're going to talk about Raw JavaScript Execution Performance with now ... Made in Germany Who cares about performance? You should. JavaScript Performance Matters
Paddy Moogan「ウェブページã®æœ€é©åŒ–ã‚’ã‚„ã‚Šé‚ã’ã‚‹ã«ã¯ï¼ˆECサイト編）〠- 以下斜ã‚èªã‚“ã 内容
SEOmoz 2012.4.29ã®ã‚¨ãƒ³ãƒˆãƒª Perfecting On-Page Optimization for Ecommerce Websites | SEOmoz ページå˜ä½ã§è¡Œã†SEO対ç–やコンãƒãƒ¼ã‚¸ãƒ§ãƒ³UPã®ãŸã‚ã®ãƒã‚§ãƒƒã‚¯ãƒªã‚¹ãƒˆã®æ±ºå®šç‰ˆã¯2009å¹´ã«æ›¸ã‹ã‚Œã¦ã‚‹ã€ã‘ã©3å¹´ãŸã£ãŸã®ã§æœ€æ–°ç‰ˆã‚’作ã£ãŸã€ãŸã ã—ECサイトã«è©±çµžã£ã¦ã€ã¨ã„ã†ä¸»æ—¨ã®ã‚¨ãƒ³ãƒˆãƒªã€‚ アドãƒã‚¤ã‚¹ã®ã‚ˆãã‚るパターンã¯ã€ã€ŒSEO効果ã¯å°‘々ã€ã§ã‚‚CVRアップã¯æœŸå¾…大ã€ã€ã€Œã ã‹ã‚‰ã‚„ã£ã¨ã‘〠派生パターンã¨ã—ã¦ã€ŒSEO効果少々ã€ã§ã‚‚UXå‘上ã€ã€Œã ã‹ã‚‰CVRアップ有望ã€ã€ã€Œã ã‹ã‚‰ã‚„ã£ã¨ã‘〠翻訳ã‚り。ãŸã ã—ä¸æ£ç¢ºï¼†ãƒŽã‚¤ã‚ºå¤šã„ SEOçš„ã«è¦‹ãŸã€ECサイトã§ã€Œã‚ãªãŸãŒå–り組むã¹ã１５ã®ãƒšãƒ¼ã‚¸è¦ç´ ã€2012年版 - webマーケティング入門 è«–æ—¨ãŒæŽ´ã‚ãªã„（原文èªã‚“ã ãã£ã‹ã‘） 原文ã¯å®šç‚¹è¦³æ¸¬ã¨ã—ã¦informativeãªã‚¨ãƒ³ãƒˆãƒªã ã£
DOM MutationObserver – reacting to DOM changes without killing browser performance. – Mozilla Hacks - the Web developer blog
Thanks! Please check your inbox to confirm your subscription. If you haven’t previously confirmed a subscription to a Mozilla-related newsletter you may have to do so. Please check your inbox or your spam filter for an email from us. smaug The right link to the spec is http://dvcs.w3.org/hg/domcore/raw-file/tip/Overview.html#mutation-observers Also, the API will be un-prefix very soon. We want to
How to Disable Image Smoothing in Modern Web Browsers
There used to be a time when images that were resized would retain their sharp edges, but several years ago web browsers began implementing image smoothing. I’ve always enjoyed being able to look more closely at the details in drawings online, but the experience is hampered when the pixels are blurred. I’ve been looking for a way to eliminate this blurring effect that now commonly occurs when one
Replication Booster for MySQL を試㙠- blog.nomadscafe.jp
æ¾ä¿¡ã•ã‚“ãŒä½œã£ãŸ Replication Booster for MySQL をデータサイズãŒå¤§ãã„データベースã«å¯¾ã—ã¦ä½¿ã£ã¦ã¿ã¾ã—ãŸã€‚ Yoshinori Matsunobu’s blog: Making slave pre-fetching work better with SSD github - yoshinorim/replication-booster-for-mysql Replication Booster for MySQL ã‚’ã‚‚ã®ã™ã”ãç°¡å˜ã«èª¬æ˜Žã™ã‚‹ã¨ã€ä»¥ä¸‹ã®ã‚ˆã†ã«ãªã‚‹ã§ã—ょã†ã‹ã€‚ MySQL ã§ãƒ¬ãƒ—リケーションをè¨å®šã—ãŸå ´åˆã€ãƒžã‚¹ã‚¿ãƒ¼ã®ãƒã‚¤ãƒŠãƒªãƒã‚°ã‚’IOスレッドãŒèªã¿å–ã‚Šã€relay-logã¸è¨˜éŒ²ã—ã¾ã™ã€‚ãã—ã¦SQLスレッドãŒrelay-logã‹ã‚‰èªã¿å–ã£ã¦ãƒ†ãƒ¼ãƒ–ルを更新ã—ã¦è¡Œãã¾ã™ã€‚Replication Booster を実行ã™ã‚‹ã¨relay-logã‚’èªã¿å–ã‚Šã€æ›´
Maatkitã¯tcpdumpを食ã¹ã‚‰ã‚Œã‚‹ä¸Šï¼Œmemcachedも咀嚼出æ¥ã‚‹ï¼Ž - ã¯ã¾ã•ã
maatkitを一通り使ã£ã¦ã¿ãŸãƒ¡ãƒ¢ - ククラフト ã§ç´¹ä»‹ã—ãŸMaatkitã®MySQLã®ã‚¯ã‚¨ãƒªçµ±è¨ˆãƒ„ールmk-query-digest． mk-query-digest /var/lib/mysql/db.slow.logã¨ã„ã†é¢¨ã«ã—ã¦ï¼ŒMySQLã®ã‚¹ãƒãƒ¼ãƒã‚°ã‚’食ã¹ã¦ # Query 73: 0.00 QPS, 0.00x concurrency, ID 0x2256C8F4C0666085 at byte 322977024 # This item is included in the report because it matches --outliers. # pct total min max avg 95% stddev median # Count 0 10 # Exec time 0 20s 2s 2s 2s 2s 0 2s # Lock time 0 0 0 0 0 0
Adobe Flash Platform * Adobe Flash Platform ã®ãƒ‘フォーマンスã®æœ€é©åŒ–
Adobe Flash Platform ヘルプ㮠PDF ã®è¡¨ç¤º ( 3.8M B) Adobe Flash Platform アドビ システムズ社ã®ãƒªãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹ モãƒã‚¤ãƒ« 一般的ãªãƒªã‚½ãƒ¼ã‚¹ ActionScript テクノãƒã‚¸ãƒ¼ã‚»ãƒ³ã‚¿ãƒ¼ ã¯ã˜ã‚ã«ï¼ãƒãƒ¥ãƒ¼ãƒˆãƒªã‚¢ãƒ« ActionScript Cookbooks é–¢é€£è£½å“ Flash Builder ユーザーガイド Using Flex Adobe AIR ヘルプコマンド / F1 デフォルトページã®å¤‰æ›´ ã™ã¹ã¦ã® Adobe CS4 製å“ã®ãƒ˜ãƒ«ãƒ—コマンドを変更ã™ã‚‹ã«ã¯ã€ä»¥ä¸‹ã®ã‚ªãƒ—ションã®ã„ãšã‚Œã‹ã‚’é¸æŠžã—ã¾ã™ã€‚ コミュニティヘルプ (ã™ã¹ã¦ã® adobe.com ヘルプã¨ã‚µãƒãƒ¼ãƒˆã€ã•ã‚‰ã«åŽ³é¸ã•ã‚ŒãŸã‚³ãƒŸãƒ¥ãƒ‹ãƒ†ã‚£ã‚¨ã‚スパートã®ã‚³ãƒ³ãƒ†ãƒ³ãƒ„) Web 上ã®ãƒ˜ãƒ«ãƒ— (製å“ã®ãƒ˜ãƒ«ãƒ—システムã®ã¿)
Hash::Compactを使ã£ã¦ã€æ§‹é€ ã‚’ã‚‚ã£ãŸã‚«ãƒ©ãƒ ã®ãƒ‡ãƒ¼ã‚¿ã‚’効率よã扱ㆠ- Kentaro Kuribayashi's blog
Hash::Compactã¨ã„ã†ã€HashRefã®key/valueã‚’ã€keyã®ã‚¨ã‚¤ãƒªã‚¢ã‚¹ã‚„デフォルトã®valueをサãƒãƒ¼ãƒˆã™ã‚‹ã“ã¨ã§ã‚³ãƒ³ãƒ‘クトã«è¡¨ç¾ã§ãるモジュールãŒã‚ã‚Šã¾ã™ã€‚ドã‚ュメントã«ã¯Cache::Memcached::Fastã§ã®åˆ©ç”¨ä¾‹ãŒç¤ºã•ã‚Œã¦ã„ã‚‹ã®ã§ã™ãŒã€ä»Šå›žã¯ãれをDBã§ä½¿ã†ä¾‹ã‚’紹介ã—ã¾ã™ã€‚å¿…ãšã—ã‚‚ORMãŒå¿…è¦ãªã‚ã‘ã§ã¯ãªã„ã®ã§ã™ãŒã€èª¬æ˜Žã®ç°¡å˜ã®ãŸã‚ã«ã€Tengを使ã„ã¾ã™ã€‚ テーブル structカラムã«ã€JSONã§ã‚·ãƒªã‚¢ãƒ©ã‚¤ã‚ºã—ãŸHashRefã‚’æ ¼ç´ã™ã‚‹ã€ä»¥ä¸‹ã®ã‚ˆã†ãªãƒ†ãƒ¼ãƒ–ルãŒã‚ã£ãŸã¨ã—ã¾ã™ã€‚ CREATE TABLE `data` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, `struct` blob, PRIMARY KEY (`id`) ); Tengã§ã®ã‚¹ã‚ーマ定義 今回ã¯Tengを使ã†ã®ã§ã€ä»¥ä¸‹ã®ã‚ˆã†ãªã‚¹ã‚
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iPhone/iPadã®Safariã§é«˜é€Ÿã«ç”»åƒã‚’æç”»ã™ã‚‹æ–¹æ³• - å¼·ç«ã§é€²ã‚
ã“ã¡ã‚‰ã®ãƒ–ãƒã‚°ã§ç´¹ä»‹ã•ã‚Œã¦ã„ãŸæœ€é©åŒ–方法をテストã—ã¦ã¿ã¾ã—ãŸã€‚ HTML5/JavaScript platform game optimised for iPad | Seb Lee-Delisle http://sebleedelisle.com/2011/04/html5javascript-platform-game-optimised-for-ipad/ 最é©åŒ–ã®æ–¹æ³•ã¯HTMLã®ã‚¨ãƒ¬ãƒ¡ãƒ³ãƒˆã« -webkit-transform:translateZ(0px) ã‚’è¨å®šã™ã‚‹ã¨ã„ã†ã‚‚ã®ã€‚ã“ã†ã™ã‚‹ã¨GPUã§å‡¦ç†ãŒè¡Œã‚れる為ã€ãƒ•ãƒ¬ãƒ¼ãƒ レートãŒå€ã«ãªã£ãŸã¨ã®äº‹ã§ã™ã€‚ スタイルを以下ã®æ§˜ã«è¨å®šã—ãŸã‚‚ã®ã¨ã€è¨å®šã—ã¦ã„ãªã„ã‚‚ã®ã‚’準備ã—ã¾ã—ãŸã€‚ * { -webkit-transform:translateZ(0px); } プãƒã‚°ãƒ©ãƒ ã¯ãƒãƒŠãƒŠã®ç”»åƒã‚’100個æç”»ã—ã¦å³ä¸Šã‹ã‚‰å·¦ä¸‹ã«ã‚¹ã‚¯ãƒãƒ¼ãƒ«ã•ã›ã¦ã„ã¾
大江戸Ruby会è°01 高速ãªãƒ†ã‚¹ãƒˆã‚µã‚¤ã‚¯ãƒ«ã‚’回ã™ã«ã¯ - 2nd life (移転ã—ã¾ã—ãŸ)
本日大江戸*1ã§è¡Œã‚ã‚ŒãŸå¤§æ±Ÿæˆ¸Ruby会è°01ã§ã€é«˜é€Ÿãªãƒ†ã‚¹ãƒˆã‚µã‚¤ã‚¯ãƒ«ã‚’回ã™ã«ã¯ã¨ã„ã†å†…容ã§ç™ºè¡¨ã—ã¦ãã¾ã—ãŸã€‚ 大江戸Ruby会è°01 高速ãªãƒ†ã‚¹ãƒˆã‚µã‚¤ã‚¯ãƒ«ã‚’回ã™ã«ã¯ View more presentations from hotchpotch テストを速ãã™ã‚‹ã«ã¯äºŒãƒ‘ターンã‚ã‚Šã€ä¸€ã¤ã¯å˜ä½“実行時ã®é€Ÿåº¦ãƒ»ãƒ•ã‚£ãƒ¼ãƒ‰ãƒãƒƒã‚¯ã®é«˜é€ŸåŒ–ã€ã‚‚ã†ä¸€ã¤ã¯ã™ã¹ã¦ã®ãƒ†ã‚¹ãƒˆå®Ÿè¡Œæ™‚ã®é«˜é€ŸåŒ–ãŒã‚ã‚‹ã¨æ€ã£ã¦ã„ã¦ã€ãれらã«ã¤ã„ã¦ã®è©±ã§ã™ã€‚ãŽã‚…ã£ã¨ã¾ã¨ã‚ã‚‹ã¨ã€å‰åŠã®å˜ä½“実行時ã®é€Ÿåº¦ãƒ»ãƒ•ã‚£ãƒ¼ãƒ‰ãƒãƒƒã‚¯é«˜é€ŸåŒ–ã«ã¯ spork / prefetch-rspec / autotest / watchr を使ãŠã†ã¨ã„ã†è©±ã¨ã€å¾ŒåŠã¯ REE / parallel_tests ã«ã‚ˆã‚‹é«˜é€ŸåŒ–・並列実行ã€remote spec ã«ã‚ˆã‚‹ãƒªãƒ¢ãƒ¼ãƒˆãƒžã‚·ãƒ³ã§ã®åˆ†æ•£ãƒ†ã‚¹ãƒˆã«ã¤ã„ã¦ã®è©±ã§ã™ã€‚ 特ã«ã‚ªãƒ¬ã‚ªãƒ¬ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã® prefetch-rspec
Reflows & Repaints: CSS Performance making your JavaScript slow? – Nicole Sullivan
Reflows & Repaints: CSS Performance making your JavaScript slow? I’ve been tweeting and posting to delicious about reflows and repaints, but hadn’t mentioned either in a talk or blog post yet. I first started thinking about reflows and repaints after a firey exchange with Mr. Glazman at ParisWeb. I may be stubborn, but I did actually listen to his arguments. 🙂 Stoyan and I began discussing wa
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blog.8-p.info: Facebook 㮠BigPipe 㨠TTI
Posted at 2010/10/22 01:59, Modified at 2010/10/22 03:42 Facebook ã®ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã¯çµæ§‹ã‹ã‚ã£ãŸã“ã¨ã‚’ã‚„ã£ã¦ã„ã¦ã€ä¾‹ãˆã°ã€ãƒã‚°ã‚¤ãƒ³å¾Œã® http://www.facebook.com/home.php ã«ã¯ <div id="pagelet_home_stream"></div> ã¿ãŸã„ãªç©ºã® HTML ãŒã‚ã‚Šã€ãã®å¾Œã« <script>big_pipe.onPageletArrive({ … });</script> <script>big_pipe.onPageletArrive({ … });</script> ... 㨠script è¦ç´ ãŒä½•å€‹ã‚‚ãªã‚‰ã‚“ã§ã„る。 BigPipe: Pipelining web pages for high performance ã“ã®ä»•çµ„ã¿ã¯ (変数åã®ã¨ãŠã‚Š) BigPipe ã¨å‘¼
Inclusive Technology Consulting - Bocoup
You probably know by now that JavaScript is getting a lot of upgrades at the moment. One of the upgrades that WebGL is bringing along for the ride is JavaScript Typed Arrays. A JavaScript Typed Array is very quick! It exists as a fixed block of memory that can be accessed with JavaScript, where as a regular JS Array is inherently very slow, being a hash lookup. There are a few different kinds of J
グーグルãŒWebを高速化ã™ã‚‹ãŸã‚ã«ä½•ã‚’ã—ã¦ã„ã‚‹ã‹
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