Velocity 2015 linux perf tools
Video: https://www.youtube.com/watch?v=FJW8nGV4jxY and https://www.youtube.com/watch?v=zrr2nUln9Kk . Tutorial slides for O'Reilly Velocity SC 2015, by Brendan Gregg. There are many performance tools nowadays for Linux, but how do they all fit together, and when do we use them? This tutorial explains methodologies for using these tools, and provides a tour of four tool types: observability, benchma
SQLデータベースã«æ£ã—インデックスを作るã®ã¯ 誰ã®å½¹å‰²ï¼Ÿ
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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
High Performance Web Design ~デザインã‹ã‚‰è€ƒãˆã‚‹ãƒã‚¤ãƒ‘フォーマンスWebサイト~ | warikiru
2009-11-24 High Performance Web Design ~デザインã‹ã‚‰è€ƒãˆã‚‹ãƒã‚¤ãƒ‘フォーマンスWebサイト~ ラベル: performance CSS Nite in ISHIKAWAã§è©±ã‚’ã—ã¦ã‹ã‚‰1ヶ月経ã£ãŸã®ã§ã€è–„れゆã記憶ã®å¾©ç¿’ã‚‚å…¼ãã¦æ€ã„ã®ä¸ˆã‚’綴ã£ã¦ã¿ãŸï½— High Performance Web Design 1. What's High Performance?ã“ã“ã§ã„ã†ãƒ‘フォーマンスã¨ã„ã†ã®ã¯Webサイトã®è¡¨ç¤ºé«˜é€ŸåŒ–ã«ã¤ã„ã¦ã§ã™ã€‚ã¤ã¾ã‚Šã€ãƒšãƒ¼ã‚¸ã‚’ã„ã‹ã«æ—©ã表示ã•ã›ã‚‹ã‹ã¨ã„ã†èª²é¡Œã§ã™ã€‚ã§ã‚‚ã€ãã†ã‚†ã†ã®ã£ã¦ã‚µãƒ¼ãƒãƒ¼å´ã®å•é¡Œã§ã—ょ？システムエンジニアã®ç®¡è½„ã˜ã‚ƒãªã„ã®ï¼Ÿã¨æ€ã‚ã‚ŒãŒã¡ã§ã™ãŒã€Œãƒã‚¤ãƒ‘フォーマンスWebサイトã€ã®è‘—者ã§ã‚ã‚‹Steve Soudersã®èª¿æŸ»ã«ã‚ˆã‚‹ã¨ã€80:20。一般的ã«ãƒ¦ãƒ¼ã‚¶ãƒ¼ã®å¾…ã¡æ™‚é–“ã®å®Ÿã«80%ãŒãƒ–ラウザå´ã€ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã§è²»ã‚„ã•ã‚Œã¦
CS193H – High Performance Web Sites
スタンフォード大å¦ã§ã€CS193H – High Performance Web Sites ã¨ã„ã†ã‚¿ã‚¤ãƒˆãƒ«ã®è¬›ç¾©ãŒè¡Œã‚ã‚ŒãŸã€‚ãã®ã¨ãã®ãƒ—レゼンテーション資料ãŒã€å…¬é–‹ã•ã‚Œã¦ã„ãŸã€‚講義ã¯ã€9/22 ã‹ã‚‰ 12/5 ã¾ã§è¡Œã‚ã‚Œã¦ã€ãŠã‚‚ã«æ¬¡ã®ã‚ˆã†ãªå†…容ã ã£ãŸã‚ˆã†ã 。講義タイトルを翻訳ã—ã¦ã¿ãŸã€‚ 9/22: å°Žå…¥ – Introduction 9/24: フãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰å´ã®ãƒ‘フォーマンスã®é‡è¦æ€§ã«ã¤ã„㦠– The Importance of Frontend Performance 9/26: HTTP ウェブサイト㮠100 ã®ãƒ‘フォーマンスプãƒãƒ•ã‚¡ã‚¤ãƒ« – HTTP Web 100 Performance Profile 9/26: é–‹ã‹ã‚ŒãŸã‚¦ã‚§ãƒ–ã®ãƒ‘フォーマンス挑戦 – Performance Challenges for the Open Web 10/1: フãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã‚«ãƒ³ãƒ•ãƒ¼ –
TheC10kProblem - 「C10Kå•é¡Œã€ï¼ˆã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆ1万å°å•é¡Œï¼‰ã¨ã¯ã€ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢ã®æ€§èƒ½ä¸Šã¯å•é¡ŒãŒãªãã¦ã‚‚ã€ã‚ã¾ã‚Šã«ã‚‚クライアントã®æ•°ãŒå¤šããªã‚‹ã¨ã‚µãƒ¼ãƒãŒãƒ‘ンクã™ã‚‹å•é¡Œã®ã“ã¨
TheC10kProblem - 「C10Kå•é¡Œã€ï¼ˆã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆ1万å°å•é¡Œï¼‰ã¨ã¯ã€ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢ã®æ€§èƒ½ä¸Šã¯å•é¡ŒãŒãªãã¦ã‚‚ã€ã‚ã¾ã‚Šã«ã‚‚クライアントã®æ•°ãŒå¤šããªã‚‹ã¨ã‚µãƒ¼ãƒãŒãƒ‘ンクã™ã‚‹å•é¡Œã®ã“㨠目次 ã“ã®æ–‡æ›¸ã«ã¤ã„㦠C10K å•é¡Œ 関連サイト ã¾ãšèªã‚€ã¹ã本 I/O フレームワーク I/O 戦略 1. å„スレッドãŒè¤‡æ•°ã®ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã‚’å—ã‘付ã‘ã‚‹. ãã—ã¦ãƒŽãƒ³ãƒ–ãƒãƒƒã‚ング I/O 㨠レベル・トリガ型ã®å®Œäº†é€šçŸ¥ã‚’利用ã™ã‚‹. ä¼çµ±çš„㪠select() ä¼çµ±çš„㪠poll() /dev/poll kqueue() 2. å„スレッドãŒè¤‡æ•°ã®ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã‚’å—ã‘付ã‘ã‚‹. ãã—ã¦ãƒŽãƒ³ãƒ–ãƒãƒƒã‚ング I/O 㨠変更型ã®å®Œäº†é€šçŸ¥(readiness change notification)を利用ã™ã‚‹. kqueue() epoll リアルタイム・シグナル fd å˜ä½ã®ã‚·ã‚°ãƒŠãƒ« (Signal-per-fd)
Google-perftoolsを使ã£ã¦CPUプãƒãƒ•ã‚¡ã‚¤ãƒªãƒ³ã‚°ã‚’ã¨ã‚‹ - PS3 Linux Information Site / Cell/B.E.ã®ãƒ‘ワーを体験ã—よã†
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OSXをスピードアップã™ã‚‹52ã®æ–¹æ³• - soundscape out
今ã¾ã§ã«ã‚‚ã€ä¼¼ãŸã‚ˆã†ãªå†…容ã¯æ›¸ãã¾ã—ãŸãŒã€ç·é›†ç·¨ã®ã‚ˆã†ãªã¾ã¨ã‚。 ImAFish Articles - 52 Ways to Speed Up OS X 解説付ãã§ç°¡å˜ã«ç´¹ä»‹ã€‚ Repair Disk Permissions（ディスクユーティリティを使用ã—ã¦ã€Œãƒ‡ã‚£ã‚¹ã‚¯ã‚¢ã‚¯ã‚»ã‚¹æ¨©ã‚’修復ã€ï¼‰ Clear out login items（ãƒã‚°ã‚¤ãƒ³é …目を削除ã™ã‚‹ï¼‰ Clear out unwanted applications（使用ã—ã¦ã„ãªã„アプリケーションã¯å‰Šé™¤ã™ã‚‹ï¼‰ Clear out unused system preferences（使用ã—ã¦ã„ãªã„システム環境è¨å®šã¯å‰Šé™¤ã™ã‚‹ï¼‰ Clear Desktop（デスクトップã‹ã‚‰ã‚¢ã‚¤ã‚³ãƒ³ã‚’ãªãã™ï¼‰ Empty Trash（ゴミ箱を空ã«ã™ã‚‹ï¼‰ Turn off Universal Access（ユニãƒãƒ¼ã‚µãƒ«ã‚¢ã‚¯ã‚»ã‚¹ã‚’オフ） Turn off Blue
mysql を高速化ã—ãŸã„ã¨ãã«èªã‚€ãƒ¡ãƒ¢ (TechKnowledge)
給料ã®æŒ¯è¾¼å£åº§ã¨ã—ã¦ä¸‰äº•ä½å‹éŠ€è¡Œã«å£åº§ã‚’æŒã£ã¦ã„ã¾ã™ã€‚自動支払ã„サービスを使用ã—ã¦å…‰ç†±è²»ç‰ã®å…¬å…±æ–™é‡‘ã®æ”¯æ‰•ã„ã‚’ã—ã¦ã„ã¾ã™ãŒã€å…ˆæ—¥ãれらã®å†…ã®ä¸€ã¤ã‚’失念ã—ã¦ãŸã“ã¨ã«æ°—ã¥ãã¾ã—ãŸã€‚å£åº§ã‚’確èªã—ãŸæ™‚ã«ã¯ã™ã§ã«å¼•ãè½ã¨ã—ãŒå®Œäº†ã—ã¦ã„ãŸãŸã‚ã€æ‰‹å…ƒã®è³‡é‡‘ãŒå¿ƒç´°ããªã£ãŸçŠ¶æ…‹ã§æ•°æ—¥ã‚’éŽã”ã•ãªã‘ã‚Œã°ãªã‚Šã¾ã›ã‚“。三井ä½å‹éŠ€è¡Œã§å³æ—¥ã‚ャッシングãŒå¯èƒ½ã§ã‚ã‚Œã°ã€æ˜¯éžåˆ©ç”¨ã—ãŸã„ã®ã§ã™ãŒã€‚ é‹ãŒè‰¯ã‘ã‚Œã°ã€ä¸‰äº•ä½å‹éŠ€è¡Œã®å³æ—¥ã‚ャッシングã¯å¯èƒ½ 三井ä½å‹éŠ€è¡Œã®ç‰¹å¾´ã¯ã¾ãšã‚¯ãƒ¬ã‚¸ãƒƒãƒˆã‚«ãƒ¼ãƒ‰ä¼šç¤¾ã¨ã®é€£æºã—ãŸã‚µãƒ¼ãƒ“スãŒé…力的ãªã“ã¨ãŒã‚ã’られã¾ã™ã€‚ã‚ャッシングã§ã¯éŠ€è¡Œã‚«ãƒ¼ãƒ‰ãƒãƒ¼ãƒ³ã§ã™ã‹ã‚‰ã€ä½•ã‚ˆã‚Šå®‰ã„金利ãŒå¤§ãã„利点ã«ãªã‚Šã¾ã™ã€‚概ã銀行系ã®å¯©æŸ»ã«å¿…è¦ãªæ™‚é–“ã¯é•·ããªã‚‹ã‚ˆã†ã§ã™ãŒã€ä¸‰äº•ä½å‹éŠ€è¡Œã§ã¯ã‚«ãƒ¼ãƒ‰ç™ºè¡ŒãŒå½“æ—¥ã«è¡Œãªã£ã¦ãã‚Œã¾ã™ã€‚ 三井ä½å‹éŠ€è¡Œã¯å³æ—¥ã‚ャッシングãŒã§ãã‚‹ã‹ã¨è¨€ã†ã¨å¾®å¦™ãªã“ã¨ã«ãªã‚Šã¾ã™ã€‚申込ã‹ã‚‰å¯©æŸ»çµæžœã®é€£çµ¡ã¾ã§ã¯ã€åœŸæ—¥
Top 84 MySQL Performance Tips | Debian Admin
MySQL is a widely used and fast SQL database server. It is a client/server implementation that consists of a server daemon (mysqld) and many different client programs/libraries. You can check the same tips from here.Here is very useful tips for all mysql DBA’s,Developers these tips are noted from MySQL Camp 2006 suggested by mysql community experts. Kaj (Most Excellent Obvious Facilitator) Index s
MySQL Performance Blog � What to tune in MySQL Server after installation
Tuning For Your HardwareDepending on the hardware you have installed MySQL on, some variables need to be set based on the machine (or VM) specifications. The following variables are largely dependent on your hardware: innodb_buffer_pool_size Generally, set to 50% – 70% of your total RAM as a starting point. It does not need to be set any larger than the total database size.innodb_log_file_size Thi
cpuburn
*** WARNING *** This program is designed to heavily load CPU chips. Undercooled, overclocked or otherwise weak systems may fail causing data loss (filesystem corruption) and possibly permanent damage to electronic components. Nor will it catch all flaws.*** USE AT YOUR OWN RISK *** CPU testing utilities in optimized assembler for maximum loading P6 (Intel Pentium Pro/II/III and Celeron TM), AMD K7
performancewiki.com - performancewiki リソースãŠã‚ˆã³æƒ…å ±
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