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performanceã«é–¢ã™ã‚‹girledã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (5)

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ãƒ¤ãƒžãƒã‚·ãƒ³ã‚»ã€40å‘¨å¹´ã‚’è¨˜å¿µã—ã¦7ã¤ã®æœ‰æ–™ã‚¢ãƒ—ãƒªï¼ˆ3600å††åˆ†ï¼‰ã‚’ç„¡æ–™é…å¸ƒ
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girled 2014/07/23
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Masahiro Nagano / é•·é‡Žé›…åºƒ @kazeburo 2014å¹´ãªã‚“ã ã‹ã‚‰COUNT(*)ã¨ã‹SQL_CALC_FOUND_ROWSã¨ã‹LIMIT OFFSETã®ãƒšãƒ¼ã‚¸ãƒ³ã‚°ã¯ã‚„ã‚ã‚ˆã†ãœ 2014-03-06 13:10:10
girled 2014/03/13
ã—ã‚‡ã¼ã„ã‚µãƒ¼ãƒ“ã‚¹ã®ä¿å®ˆé‹ç”¨ã—ã‹ã—ãŸã“ã¨ç„¡ã„ã¨ã‚¹ã‚±ãƒ¼ãƒ«ã‚’æ„è˜ã—ãŸã“ã†ã„ã†è©±ãŒå‡ºã¦ã‚‚ã€Œä½•ã§ï¼Ÿã€ã«ãªã£ã¦æ¥ãšã‹ã—ã„æ€ã„ã™ã‚‹ã€‚ãã†ã„ã†ã“ã¨ã«ãªã‚‰ãªã„ã‚ˆã†ã«ã‚„ã£ã±å‹‰å¼·ä¼šã¨ã‹ã§ã®ã‚¤ãƒ³ãƒ—ãƒƒãƒˆã¯å¤§åˆ‡ã ãªã‚ã€‚

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2013/02/18 Yahoo! Open Hack Day å‚åŠ ä½œå“ KLabè³ž å—è³ž ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã¯ã“ã¡ã‚‰: https://github.com/mirakui/tuningsan èª¬æ˜Ž: http://blog.mirakui.com/entry/2013/02/20/003401
girled 2013/02/18
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TheC10kProblem - ã€ŒC10Kå•é¡Œã€ï¼ˆã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆ1ä¸‡å°å•é¡Œï¼‰ã¨ã¯ã€ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢ã®æ€§èƒ½ä¸Šã¯å•é¡ŒãŒãªãã¦ã‚‚ã€ã‚ã¾ã‚Šã«ã‚‚ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã®æ•°ãŒå¤šããªã‚‹ã¨ã‚µãƒ¼ãƒãŒãƒ‘ãƒ³ã‚¯ã™ã‚‹å•é¡Œã®ã“ã¨
TheC10kProbl em - ã€ŒC10Kå•é¡Œã€ï¼ˆã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆ1ä¸‡å°å•é¡Œï¼‰ã¨ã¯ã€ãƒãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢ã®æ€§èƒ½ä¸Šã¯å•é¡ŒãŒãªãã¦ã‚‚ã€ã‚ã¾ã‚Šã«ã‚‚ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã®æ•°ãŒå¤šããªã‚‹ã¨ã‚µãƒ¼ãƒãŒãƒ‘ãƒ³ã‚¯ã™ã‚‹å•é¡Œã®ã“ã¨ ç›®æ¬¡ ã“ã®æ–‡æ›¸ã«ã¤ã„ã¦ C10K å•é¡Œ é–¢é€£ã‚µã‚¤ãƒˆ ã¾ãšèªã‚€ã¹ãæœ¬ I/O ãƒ•ãƒ¬ãƒ¼ãƒ ãƒ¯ãƒ¼ã‚¯ I/O æˆ¦ç•¥ 1. å„ã‚¹ãƒ¬ãƒƒãƒ‰ãŒè¤‡æ•°ã®ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã‚’å—ã‘ä»˜ã‘ã‚‹. ãã—ã¦ãƒŽãƒ³ãƒ–ãƒãƒƒã‚ãƒ³ã‚° I/O ã¨ ãƒ¬ãƒ™ãƒ«ãƒ»ãƒˆãƒªã‚¬åž‹ã®å®Œäº†é€šçŸ¥ã‚’åˆ©ç”¨ã™ã‚‹. ä¼çµ±çš„ãª select() ä¼çµ±çš„ãª poll() /dev/poll kqueue() 2. å„ã‚¹ãƒ¬ãƒƒãƒ‰ãŒè¤‡æ•°ã®ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã‚’å—ã‘ä»˜ã‘ã‚‹. ãã—ã¦ãƒŽãƒ³ãƒ–ãƒãƒƒã‚ãƒ³ã‚° I/O ã¨ å¤‰æ›´åž‹ã®å®Œäº†é€šçŸ¥(readiness change notification)ã‚’åˆ©ç”¨ã™ã‚‹. kqueue() epoll ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ãƒ»ã‚·ã‚°ãƒŠãƒ« fd å˜ä½ã®ã‚·ã‚°ãƒŠãƒ« (Signal-per-fd)
girled 2012/04/06
æš‡ãªã®ã§node.jsã®ãŠå‹‰å¼·ã—ã¦ã¦C10Kã®è©±ãŒå‡ºã¦ããŸã®ã§ã€‚ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã«ã—ã‚ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã«ã—ã‚ã€ã‚·ã‚¹ãƒ†ãƒ é–‹ç™ºã¨I/Oã®åˆ¶é™ã¨ã¯åˆ‡ã£ã¦ã‚‚åˆ‡ã‚Œãªã„é–¢ä¿‚ãªã®ãã€‚

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SAML / OpenID Connect / OAuth / SCIM æŠ€è¡“è§£èª¬ - ID&IT 2014 #idit2014Nov Matake
girled 2010/11/22
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