How Facebook Makes Mobile Work at Scale for All Phones, on All Screens, on All Networks - High Scalability -
Update: Instagram Improved Their App's Performance. Here's How. When you find your mobile application that ran fine in the US is slow in other countries, how do you fix it? That’s a problem Facebook talks about in a couple of enlightening videos from the @scale conference. Since mobile is eating the world, this is the sort of thing you need to consider with your own apps. In the US we may complain
Elasticsearchã®ã‚¤ãƒ³ãƒ‡ã‚シングã«é–¢ã™ã‚‹ãƒ‘フォーマンス検討
Elasticsearchã®ã‚¤ãƒ³ãƒ‡ã‚シングã«é–¢ã™ã‚‹ãƒ‘フォーマンス検討 原文：performance considerations for elasticsearch indexing Elasticsearchユーザã¯æ§˜ã€…ãªæ¥½ã—ã„ユースケースをæŒã£ã¦ã„ã¾ã™ã€‚å°ã•ãªãƒã‚°ã‚’è¿½åŠ ã™ã‚‹ã“ã¨ã‹ã‚‰ã€Webスケールã®å¤§ããªãƒ‰ã‚ュメントã®é›†åˆã‚’インデã‚シングã™ã‚‹ã‚ˆã†ãªã“ã¨ã¾ã§ã§ã™ã€‚ã¾ãŸã€ã‚¤ãƒ³ãƒ‡ã‚シングã®ã‚¹ãƒ«ãƒ¼ãƒ—ットを最大化ã™ã‚‹ã“ã¨ãŒé‡è¦ã§ä¸€èˆ¬çš„ãªç›®æ¨™ã¨ãªã‚Šã¾ã™ã€‚ 「典型的ãªã€ã‚¢ãƒ—リケーションã«å¯¾ã—ã¦è‰¯ã„デフォルト値をè¨å®šã™ã‚‹ã‚ˆã†ã«ã—ã¦ã„ã¾ã™ãŒã€æ¬¡ã®ã¡ã‚‡ã£ã¨ã—ãŸç°¡å˜ãªãƒ™ã‚¹ãƒˆãƒ—ラクティスã«ã‚ˆã£ã¦ã‚¤ãƒ³ãƒ‡ã‚シングã®ãƒ‘フォーマンスをã™ãã«æ”¹å–„ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ãれらã«ã¤ã„ã¦è¨˜è¿°ã—ã¾ã™ã€‚ 第一ã«ã€åˆ¶å¾¡ã§ããªã„ãªã‚‰ã°ã€å·¨å¤§ãªJavaヒープを使用ã—ãªã„：必è¦ãªã‚µã‚¤ã‚ºï¼ˆãƒžã‚·ãƒ³ã®æŒã¤RAMã®åŠåˆ†ä»¥ä¸‹ï¼‰ã®heapã ã‘ã‚’è¨å®šã—
WebPagetest - Website Performance and Optimization Test
Test. Experiment. Improve! WebPageTest. The gold standard in web performance testing. Lightning-Fast Web Performance Online CourseLearn to analyze performance, fix issues, and deliver fast websites from the start. Free! Start Course Now >> Introducing Carbon Control Experimental New in WebPageTest! Measure your site's carbon footprint and run No-Code Experiments to find ways to improve.
How New Relic measures page load timing | New Relic Documentation
This document explains: How a web page loadsHow browser monitoring measures page load timing, also known as real user monitoring (RUM) TipThis is a description of traditional, synchronous page load timing. Browser can also monitor asynchronous page load timing. Page load process Here are the major steps in the loading of most web pages. The numbers 1-6 in the diagram correspond to the numbered ste
ガベージコレクタã®ä»•çµ„ã¿ã‚’ç†è§£ã™ã‚‹
GCã‚’é©åˆ‡ã«è¡Œã‚ã›ã‚‹ãŸã‚ã®ãƒ’ープサイズã®è¨å®š JVMã«GCã‚’é©åˆ‡ã«è¡Œã‚ã›ã‚‹ã«ã¯ãƒ’ープサイズをé©åˆ‡ã«è¨å®šï¼ˆNewé ˜åŸŸã‚µã‚¤ã‚ºã€Oldé ˜åŸŸã‚µã‚¤ã‚ºã€é ˜åŸŸã‚µã‚¤ã‚ºã®ãƒãƒ©ãƒ³ã‚¹ãªã©ï¼‰ã™ã‚‹å¿…è¦ãŒã‚ã‚Šã¾ã™ã€‚当然ã€é©åˆ‡ãªãƒ’ープサイズã¯ã‚¢ãƒ—リケーションã«ä¾å˜ã—ã¾ã™ã€‚一般ã«ãƒ’ープサイズãŒå°ã•ã„ã¨GCãŒé »ç™ºã—ã¦ã‚¢ãƒ—リケーションã®ãƒ‘フォーマンスãŒä½Žä¸‹ã—ã¾ã™ã€‚ã•ã‚‰ã«ã€ãƒ’ープサイズãŒå¿…è¦é‡ã‚’ä¸‹å›žã‚‹å ´åˆã¯OutOfMemoryErrorãŒç™ºç”Ÿã—ã¦ã‚¢ãƒ—リケーションãŒåœæ¢ã—ã¦ã—ã¾ã„ã¾ã™ã€‚一方ã€ãƒ’ープサイズãŒå¤§ãã„ã¨ã€GCã®èµ·å‹•å›žæ•°ã¯æ¸›ã‚Šã¾ã™ãŒã€GC1回当ãŸã‚Šã®å‡¦ç†æ™‚é–“ã€ã™ãªã‚ã¡ã‚¢ãƒ—リケーションåœæ¢çŠ¶æ…‹ãŒé•·ããªã‚Šã€ã‚¢ãƒ—リケーションã®å¿œç”時間ã«å•é¡ŒãŒå‡ºã‚‹å ´åˆã‚‚ã‚ã‚Šã¾ã™ã€‚システムã®ç‰©ç†ãƒ¡ãƒ¢ãƒªã®ãƒ•ãƒªãƒ¼é ˜åŸŸãŒä¸è¶³ã™ã‚‹ã¾ã§ãƒ’ープサイズを大ããã™ã‚‹ã¨ã€ç‰©ç†ãƒ¡ãƒ¢ãƒªã‹ã‚‰ã‚¹ãƒ¯ãƒƒãƒ—é ˜åŸŸã¸ã®ãƒšãƒ¼ã‚¸ãƒ³ã‚°ãŒèµ·ã“ã£ã¦ã—ã¾ã„ã€ã‹ãªã‚Šã®ãƒ‘フォーマンスãŒåŠ£åŒ–ã™ã‚‹å¯
Javaメモリã€GCãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã¨ãã‚Œã«ã¾ã¤ã‚ã‚‹ãƒˆãƒ©ãƒ–ãƒ«å¯¾å¿œæ‰‹é †ã¾ã¨ã‚ - 日記ã®ã‚ˆã†ãªä½•ã‹
GC周りã§ãƒˆãƒ©ãƒ–ルシューティングã—ãŸéš›ã®çµŒé¨“ã‚„ã€Webç‰ã§èª¿ã¹ãŸã“ã¨ã‚’ã¾ã¨ã‚ã¦ã¿ã‚‹ã€‚ å‰æ ・JVMã¯ã€Sun Javaを想定。(ä»–ã¯ä½¿ã£ãŸã“ã¨ãªã„ã§ã™ã€‚。。) ・Sun Java 1.5-1.6を想定。 目標 マイナーGCã€Full GCãã‚Œãžã‚ŒãŒé »ç™ºã™ã‚‹ã“ã¨ãªãã€ã‹ã¤ãã‚Œãžã‚Œã®å®Ÿè¡Œæ™‚é–“ã‚’1秒未満ã«æŠ‘ãˆã‚‹ã“ã¨ã€‚ マイナーGCã¯1秒未満ã©ã“ã‚ã§ã¯ãªãã€ã‚‚ã£ã¨çŸããªã‚‹ã¹ã。ã©ã‚Œãらã„ãŒç†æƒ³ã‹ã¯ï¼Ÿ(0.1秒未満ãらã„を目指ã—ãŸã„？) 連続ã—ãŸè² è·çŠ¶æ…‹(想定ã•ã‚Œã‚‹ãƒ”ークアクセス)ã§ã‚‚OutOfMemoryErrorãŒç™ºç”Ÿã—ãªã„ã“ã¨ã€‚ ç†æƒ³çš„ãªçŠ¶æ…‹ã¯ã€ä¸Šè¨˜ã«åŠ ãˆã¦ã€Full GCã®ç™ºç”ŸãŒä½Žé »åº¦ã§ã‚ã‚‹ã“ã¨ã€‚ 具体的ã«ã¯ã€ã§ãã‚‹ã ã‘マイナーGCã§çŸå‘½ã‚ªãƒ–ジェクト(1回使ã£ãŸã‚‰ã‚‚ã†ä½¿ã‚ãªã„よã†ãªã‚ªãƒ–ジェクト。逆ã«ã‚»ãƒƒã‚·ãƒ§ãƒ³ã‚ªãƒ–ジェクトç‰ã¯é•·å‘½ã‚ªãƒ–ジェクトã¨ãªã‚‹)ã‚’ç ´æ£„ã•ã›ã¦ã€çŸå‘½ã‚ªãƒ–ジェクトãŒã€Tenu
jsPerf: JavaScript performance playground
jsPerf — JavaScript performance playground What is jsPerf? jsPerf aims to provide an easy way to create and share test cases, comparing the performance of different JavaScript snippets by running benchmarks. For more information, see the FAQ. Create a test case Login with GitHub to Create Test Cases
#isucon2 ã§å„ªå‹ã—ã¦ãã¾ã—㟠- 酒日記 ã¯ã¦ãªæ”¯åº—
ãªã‚“ã§ã‚‚ã‚ã‚Šã®ã„ã„æ„Ÿã˜ã«ã‚¹ãƒ”ードアップコンテスト ISUCON ㌠2 ã«ãªã£ã¦å¸°ã£ã¦ããŸã®ã§ã€å‚åŠ ã—ã¦å„ªå‹ã‚’å‹ã¡å–ã£ã¦ãã¾ã—ãŸã€‚ ã¾ã¨ã‚çš„ãªã‚‚ã®ã¯ã“ã¡ã‚‰ã‹ã‚‰ livedoor Techブãƒã‚° : ISUCON ãƒãƒ¼ãƒ メンãƒãƒ¼ã®blogã‚‚ä½µã›ã¦ã”覧ãã ã•ã„。 ãŠãらãã¯ãã‚Œã•ãˆã‚‚平凡ãªæ—¥ã€…: #isucon2 ã§é€£è¦‡ã•ã›ã¦ã‚‚らã£ã¦ãã¾ã—㟠Rediså¸ƒæ•™æ´»å‹•å ±å‘Š ISUCON ç·¨ - unknownplace.org 今回ã¯å‰å›žã® ISUCON 優å‹ãƒ¡ãƒ³ãƒãƒ¼ã®ã²ã¨ã‚Š @sugyan ãŒè»¢è·ã—ã¦å‡ºé¡Œå´ã«å›žã£ã¦ã—ã¾ã£ãŸã®ã§ã€@typester ã‚’æ‹›è˜ã—ã¦ãƒãƒ¼ãƒ ç·¨æˆã€‚@songmu ã¨å…±ã«3人ã§ãƒãƒ¼ãƒ 「fujiwara組ã€ã¨ã—ã¦å†å‚戦ã§ã™ã€‚ 以下ã€ä½œæ¥ç”¨IRCã®ãƒã‚°ã‹ã‚‰ãµã‚Šã‹ãˆã‚Šã¾ã™ã¨â€¦â€¦ 11:39:29 <typester> ã¨ã‚Šã‚ãˆãšrecent_soldã¯ã‚ャッシュã£ã¦ã®ã¯ã¾ãšã‚„ã‚‹ã“ã¨ã‹
Using filesort
去年ソートã«é–¢ã™ã‚‹è¨˜äº‹ã‚’書ã„ãŸãŒã€ä»Šæ—¥ã¯ãã®ç¶šãã§ã‚る。 MySQLã§EXPLAIN SELECT...を実行ã™ã‚‹ã¨Extraフィールドã§ã‚ˆã見ã‹ã‘る「Using filesortã€ã¨ã„ã†æ–‡å—列。Filesortã£ã¦ä¸€ä½“ãªã‚“ã ã‚ã†ï¼Ÿã¨æ€ã£ãŸã“ã¨ã¯ãªã„ã ã‚ã†ã‹ã€‚å˜åˆ€ç›´å…¥ã«è¨€ã£ã¦Filesortã®æ£ä½“ã¯ã‚¯ã‚¤ãƒƒã‚¯ã‚½ãƒ¼ãƒˆã§ã‚る。 クエリã«ORDER BYãŒå«ã¾ã‚Œã‚‹å ´åˆã€MySQLã¯ã‚る程度ã®å¤§ãã•ã¾ã§ã¯å…¨ã¦ãƒ¡ãƒ¢ãƒªå†…ã§ã‚¯ã‚¤ãƒƒã‚¯ã‚½ãƒ¼ãƒˆã‚’処ç†ã™ã‚‹ã€‚ã‚る程度ã®å¤§ãã•ã¨ã¯sort_buffer_sizeã§ã‚ã‚Šã€ã“ã‚Œã¯ã‚»ãƒƒã‚·ãƒ§ãƒ³ã”ã¨ã«å¤‰æ›´å¯èƒ½ã§ã‚る。ソートã«å¿…è¦ãªãƒ¡ãƒ¢ãƒªãŒsort_buffer_sizeより大ãããªã‚‹ã¨ã€ãƒ†ãƒ³ãƒãƒ©ãƒªãƒ•ã‚¡ã‚¤ãƒ«ï¼ˆãƒ†ãƒ³ãƒãƒ©ãƒªãƒ†ãƒ¼ãƒ–ルã§ã¯ãªã„）ãŒä½œæˆã•ã‚Œã€ãƒ¡ãƒ¢ãƒªã¨ãƒ•ã‚¡ã‚¤ãƒ«ã‚’併用ã—ã¦ã‚¯ã‚¤ãƒƒã‚¯ã‚½ãƒ¼ãƒˆãŒå®Ÿè¡Œã•ã‚Œã‚‹ã€‚ Filesortã¯å…¨ã¦ã®ã‚½ãƒ¼ãƒˆå‡¦ç†ã«ãŠã„ã¦å®Ÿè¡Œã•ã‚Œã‚‹ã‚ã‘ã§ã¯ãªã„。å‰å›žã®è¨˜äº‹
INDEX FULL SCANを狙ㆠ- MySQL Casual Advent Calendar 2011 - SH2ã®æ—¥è¨˜
2011å¹´8月ã®kazeburoã•ã‚“ã®ã‚¨ãƒ³ãƒˆãƒªã«å¯¾ã™ã‚‹è§£èª¬è¨˜äº‹ã§ã™ã€‚çµè«–ã‹ã‚‰è¨€ã†ã¨kazeburoã•ã‚“ã®æ¡ˆã«è³›æˆãªã®ã§ã™ãŒã€æœ¬æ—¥ã¯ã©ã†ã—ã¦ãã†ãªã£ãŸã®ã‹ã¨ã„ã†ã¨ã“ã‚を確èªã—ã¦ã„ããŸã„ã¨æ€ã„ã¾ã™ã€‚本記事ã¯MySQL Casual Advent Calendar 2011ã®17日目ã®ã‚¨ãƒ³ãƒˆãƒªã§ã™ã€‚16日目ã¯akira1908jpã•ã‚“ã§ã—ãŸã€‚ 当時ã®å†…容を覚ãˆã¦ã„ãªã„æ–¹ã¯ã€å…ˆã«kazeburoã•ã‚“ã®ã‚¨ãƒ³ãƒˆãƒªã‚’ã”一èªãã ã•ã„。ã¾ãŸã€ãƒ†ã‚¹ãƒˆã‚±ãƒ¼ã‚¹ãŒGitHubã«å…¬é–‹ã•ã‚Œã¦ã„ã¾ã™ã®ã§ã‚«ã‚¸ãƒ¥ã‚¢ãƒ«ã«å†ç¾è©¦é¨“ã‚’ã™ã‚‹ã“ã¨ã‚‚å¯èƒ½ã§ã™ã€‚ Covering Index 㨠self-join 㨠MySQL - blog.nomadscafe.jp kazeburo's gist: 1150842 - Gist å•é¡Œã®SQLã‚’ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã™ã‚‹ã«ã¯ã€MySQLãŒã‚¤ãƒ³ãƒ‡ãƒƒã‚¯ã‚¹ã«å¯¾ã—ã¦ã©ã®ã‚ˆã†ã«ã‚¢ã‚¯ã‚»ã‚¹ã™ã‚‹ã‹ã¨ã„ã†ç‚¹ã«ã¤
MiniProfiler: A simple but effective mini-profiler for .NET and Ruby
A simple but effective mini-profiler for .NET, Ruby, Go and Node.js. What does it profile? MiniProfiler does not attach itself to every single method call; that would be too invasive and wouldn't focus on the biggest performance issues. Instead, it provides: An ADO.NET profiler, capable of profiling calls on raw ADO.NET (SQL Server, Oracle, etc), LINQ-to-SQL, Entity Framework (including Code First
Start - weighttp - lighty labs
weighttp¶ About¶ weighttp (pronounced weighty) is a lightweight and small benchmarking tool for webservers. weighttp was designed to be very fast and easy to use and only supports a tiny fraction of the HTTP 1.x protocol in order to be lean and simple. weighttp supports multithreading to make good use of modern CPUs with multiple cores as well as event-driven I/O for concurrent requests within a s
Linuxã®ãƒ¡ãƒ¢ãƒªä¸Šã®ã‚ャッシュを解放ã™ã‚‹ - å…ƒRX-7ä¹—ã‚Šã®é©å½“ãªæ—¥ã€…
ã„ã¤ã‚‚æ€ã„ã ã™ã®ã«æ™‚é–“ãŒã‹ã‹ã‚‹ã¨ã„ã†ã‹ã€ã‚°ã‚°ã‚‹ã®ã§ãƒ¡ãƒ¢ã€‚ 例ãˆã°ã€ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ã¨ã‹ã‚’ã¨ã£ã¦ã„ã¦ã€æ®‹ã£ãŸã‚ャッシュを奇麗ã•ã£ã±ã‚Šã«æ¶ˆã—ãŸã„時ã¨ã‹ã«ä½¿ã†ã€‚ Linuxã®ãƒ¡ãƒ¢ãƒªã§ä¿æŒã—ã¦ã„ã‚‹ã‚ャッシュをクリアã™ã‚‹ã«ã¯ã€ä»¥ä¸‹ã‚’実行ã™ã‚‹ã€‚ # sync # echo 3 > /proc/sys/vm/drop_caches 値ã®æ„味ã¨ã—ã¦ã¯ã€ã€ã€ 1： ページã‚ャッシュを解放 2： dentryã€inode を解放 3： ページã‚ャッシュã€dentryã€inode を解放 以下をå‚考ã«ã€‚ /proc/sys/vm/drop_caches (Linux 2.6.16 以é™) ã“ã®ãƒ•ã‚¡ã‚¤ãƒ«ã«æ›¸ãè¾¼ã¿ã‚’è¡Œã†ã“ã¨ã§ã€ã‚¯ãƒªãƒ¼ãƒ³ãªã‚ャッシュã€dentry〠inode をメモリ上ã‹ã‚‰å¤–ã—ã€ãã®ãƒ¡ãƒ¢ãƒªã‚’解放ã™ã‚‹ã€‚ ページã‚ャッシュを解放ã™ã‚‹ã«ã¯ã€ echo 1 > /proc/sys/vm/drop_caches
「Facebookã«ãªã£ãŸã¤ã‚‚ã‚Šã§è€ƒãˆã‚‹ã€â”€â”€ 第1回NHNテクノãƒã‚¸ãƒ¼ã‚«ãƒ³ãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹ã‹ã‚‰ - ITジャーナリスト星æšé›„ã®"æƒ…å ±è«–"ノート
2012å¹´5月19日（土）ã€ã€Œç¬¬1回NHNテクノãƒã‚¸ãƒ¼ã‚«ãƒ³ãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹ã€ã¨ã„ã†ã‚¤ãƒ™ãƒ³ãƒˆã«å‚åŠ ã—ã¾ã—ãŸã€‚グリーã€DeNAã€NHN Japanå„社ã®ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã«é–¢ã™ã‚‹è°è«–ã€ãã—ã¦æ–°ã—ã„分散フレームワークDripcastã«é–¢ã™ã‚‹æŠ€è¡“çš„ãªè©±ã‚’è´ã„ã¦ãã¾ã—ãŸã€‚ カンファレンスã®é–‹å‚¬æ¦‚è¦ã¯ã“ã¡ã‚‰ã€‚ 第1回NHNテクノãƒã‚¸ãƒ¼ã‚«ãƒ³ãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹è©³ç´°å†…å®¹æ±ºå®šï¼ ä¸»å‚¬è€…ã‹ã‚‰ä¸€ã¤å¤§äº‹ãªãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ãŒã€‚「YAPC::Asia2012（2012å¹´9月27〜29日）ã«ãœã²æ¥ã¦ãã ã•ã„ã€ã¨ã®ã“ã¨ã§ã™ã€‚ 以下ã€ã“ã®ã‚«ãƒ³ãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹ã®ãƒ¡ãƒ¢ã§ã™ã€‚網羅的ã§ã¯ã‚ã‚Šã¾ã›ã‚“。全貌を把æ¡ã—ãŸã„æ–¹ã¯å‹•ç”»ã¨ç™ºè¡¨è³‡æ–™ã‚’見ã¦ãã ã•ã‚‹ã‚ˆã†ãŠé¡˜ã„ã—ã¾ã™ã€‚ DeNAã®MySQLé‹ç”¨ç®¡ç†ã®å®Ÿéš›ã‚’解説 講演タイトルã¯ã€Œãƒ“ッグデータã¨æˆ¦ã†Mobage DBAã€ï¼ˆ 発表資料）。講演者ã¯ãƒ‡ã‚£ãƒ¼ãƒ»ã‚¨ãƒŒãƒ»ã‚¨ãƒ¼ システム統括本部IT基盤部Mobage基盤管ç†ã‚°ãƒ«ãƒ¼ãƒ—岩永亮介
Pinterest ã®ã‚¹ã‚±ãƒ¼ãƒ«
V 先生ã‹ã‚‰æ•™ãˆã¦é ‚ã„ãŸã®ã§ã€Instagram åŒæ§˜ Django/AWS 構æˆã® Pinterest ã®ã‚¹ã‚±ãƒ¼ãƒ«ã‚’メモ。Pinterest ã¯ã„ã¤ã‚‚ã®ã‚¢ã‚«ã‚¦ãƒ³ãƒˆåãŒåˆã‚ã¦ å…ˆå– ã•ã‚ŒãŸã‚µãƒ¼ãƒ“スãªã®ã§ã€ä»Šå¾Œä½¿ã‚ãªã„ã¨æ€ã„ã¾ã™ã€‚ 本題ã«å…¥ã‚‹å‰ã«ã€Python ã«ã¯ The Zen of Python (日本語) ã¨ã„ã†æ€æƒ³ãŒã‚ã‚Šã¾ã™ã€‚ç§ã¯ã“ã®æ€æƒ³ã‚’ Python ã§ã®ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã ã‘ã§ãªãã€ã‚¤ãƒ³ãƒ•ãƒ©ã®æ§‹ç¯‰ã®éš›ã‚‚æ„è˜ã™ã‚‹ã‚ˆã†ã«å¿ƒãŒã‘ã¦ã„ã¾ã™ã€‚"Simple is better than complex" ã§ã™ã€‚Instagram ã‚„ Pinterest ã®ã‚¹ã‚±ãƒ¼ãƒ«ã‚’見ã¦ã€ã“ã®æ€æƒ³ãŒã‚‚ã£ã¨å¥½ãã«ãªã‚Šã¾ã—ãŸã€‚ Instagram ã¯ã‚ˆã‚Šã‚·ãƒ³ãƒ—ルãªã‚¤ãƒ³ãƒ•ãƒ©ã«æ›´æ”¹ã—ã¦ã„ãã“ã¨ã§ã€ãŸã スケールã™ã‚‹ã ã‘ã§ãªãã€é‹ç”¨ã‚„変更ã®ã‚³ã‚¹ãƒˆã‚‚最å°é™ã«ãªã‚‹ã‚ˆã†ã«æœ€é©åŒ–ã—ã¦ã„ã‚‹ã¨æ€ã„ã¾ã™ã€‚çµæžœçš„ã« Android ã‚¢
メンテナンス
ランã‚ング
ãŠçŸ¥ã‚‰ã›
リリースã€éšœå®³æƒ…å ±ãªã©ã®ã‚µãƒ¼ãƒ“スã®ãŠçŸ¥ã‚‰ã›
最新ã®äººæ°—エントリーã®é…ä¿¡
j次ã®ãƒ–ックマーク
kå‰ã®ãƒ–ックマーク
lã‚ã¨ã§èªã‚€
eコメント一覧を開ã
oページを開ã
GitHub - tmm1/gctools: profiler/logger/oobgc for rgengc in ruby 2.1
CloudBees blog
GitHub - desktoppr/wbench: It benchmarks websites, YO!
GitHub - josh/css-explain: SQL EXPLAIN for CSS selectors
ruby-1.9.3-p194 cumulative performance patch. — Gist
{{#tags}}- {{label}}
{{/tags}}