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fragarach_the_sword 2014/04/08
Dr. K's SQL Serverãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ç ”ä¿®ï¼ˆ3ï¼‰ï¼šãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã‚’æº€ãŸã™ç‰©ç†ãƒ¡ãƒ¢ãƒªé‡ã‚’ç®—å‡ºã™ã‚‹ (1/3) - ï¼ IT

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fragarach_the_sword 2013/09/16
Macã®å‹•ä½œãŒé…ããªã‚‹ä¹ã¤ã®ç†ç”±ã¨å¯¾å‡¦æ³• - Macã®æ‰‹æ›¸ãèª¬æ˜Žæ›¸

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ã»ãˆã»ãˆ Linuxãƒ•ã‚¡ã‚¤ãƒ«I/Oãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°
Linuxã¯ç§ã®ä½¿ã£ã¦ã„ã‚‹ç¯„å›²ã§ã¯ãƒ•ã‚¡ã‚¤ãƒ«I/OãŒãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ãƒœãƒˆãƒ«ãƒãƒƒã‚¯ã«ãªã£ã¦ã„ã‚‹ã“ã¨ãŒå¤šã„ã€‚ã§ã€ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã®æƒ…å ±ã‚’é›†ã‚ã¦ã¿ã‚‹ã®ã ãŒã€ãªã‹ãªã‹å½¹ç«‹ã¤æƒ…å ±ã‚’å…¥æ‰‹ã§ããªã„ã€‚ æ±ºã¾ã£ã¦å…¨èˆ¬çš„ãªãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã®é€²ã‚æ–¹ã«ã¤ã„ã¦è¿°ã¹ã€æ¬¡ã«ãƒœãƒˆãƒ«ãƒãƒƒã‚¯ã®èª¿ã¹æ–¹ã«ã¤ã„ã¦è¿°ã¹ã‚‹ã€‚ æœ€å¾Œã«ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿è¨å®šæ‰‹é †ã®ãƒ’ãƒ³ãƒˆã ã‘ã‚’éžå¸¸ã«ç°¡å˜ã«æŒ™ã’ã¦ãŠã‚ã£ã¦ã—ã¾ã†ã€‚ã„ã‚„ã€ã©ã“ãŒãƒœãƒˆãƒ«ãƒãƒƒã‚¯ãªã®ã‹æœ€åˆã«ä¸€ç™ºã§åˆ†ã‹ã‚Œã°ã„ã„ã‚ˆï¼Ÿ ã§ã‚‚å…¨èˆ¬çš„ãªãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã®é€²ã‚æ–¹ã§ãã†ã—ãŸãƒ‰ã‚ãƒ¥ãƒ¡ãƒ³ãƒˆãŒè¿°ã¹ã¦ã„ã‚‹é€šã‚Šã€è‰²ã€…ãªå¯èƒ½æ€§ã‚’ç¹°ã‚Šè¿”ã—ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã—ãªãŒã‚‰ã¤ã¶ã—ã¦ã„ã‹ãªãã‚ƒã„ã‘ãªã„ã‚“ã ã‚ˆãã€‚ ãã®ãŸã‚ã«ã¯å…·ä½“çš„ãªãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ã®è¨å®šæ‰‹é †ãŒãªãã‚ƒã§ããªã„ã‚“ã ã‚ˆãã€‚ãã‚Œã‚’æ•™ãˆã‚ã‚ˆï¼ãã‚Œã‚’ï¼ ã¨ã„ã†ã“ã¨ã§ã€ä»Šå›žã¯Linuxãƒ•ã‚¡ã‚¤ãƒ«I/Oãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ã«ã¤ã„ã¦èª¿ã¹ãŸã€‚å¤§ããªãƒ•ã‚¡ã‚¤ãƒ«ã®æ›¸ãè¾¼ã¿(ex. cpã‚³ãƒžãƒ³ãƒ‰)ã‚’è¡Œã†ã¨ã€
fragarach_the_sword 2013/08/23
ã»ãˆã»ãˆ Linuxãƒ•ã‚¡ã‚¤ãƒ«I/Oãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°

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kernel: TCP: time wait bucket table overflow ã®è§£æ¶ˆã¨TIME_WAITã‚’æ¸›ã‚‰ã™ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚° - æ°—ã¾ã¾ã«ã‚¤ãƒ³ãƒ•ãƒ©ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢
æ•´ç†ãŒã¦ã‚‰ã€‚ httpdãŒå‹•ã„ã¦ã„ã‚‹ã‚ã‚‹ãƒ›ã‚¹ãƒˆä¸Šã§ã€ /var/log/messages ã«ä»¥ä¸‹ã®ã‚ˆã†ãªãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ãŒå‡ºã¦ã„ãŸã€‚ kernel: TCP: time wait bucket table overflow kernel: printk: 50078 messages suppressed. "netstat -tna |grep TIME_WAIT"ã™ã‚‹ã¨ã€10ä¸‡ä»¥ä¸Šã®æ•°ã§TIME_WAITãŒå‡ºã¦ã„ã‚‹ã€‚ã“ã‚Œã‚’è§£æ¶ˆã™ã‚‹ã¾ã§ã®æµã‚Œã€‚ ãã‚‚ãã‚‚ã“ã®å€¤ã¯ã€ã‚«ãƒ¼ãƒãƒ«ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ã® net.ipv4.tcp_max_tw_buckets ã§è¨å®šã•ã‚Œã¦ã„ã‚‹ã€‚ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã¯16384ã€‚ ï¼ˆâ†‘ã®é€šã‚Šã€ã‚¨ãƒ©ãƒ¼ãŒå‡ºãŸç’°å¢ƒã§ã¯æ—¢ã«ã‹ãªã‚Šå¤§ããªå€¤ãŒè¨å®šã•ã‚Œã¦ã„ãŸã®ã ãŒã€‚ï¼‰ /proc/sys/net/ipv4/tcp_max_tw_buckets ã‚·ã‚¹ãƒ†ãƒ ãŒåŒæ™‚ã«ä¿æŒã™ã‚‹ time-wait ã‚½ã‚±ãƒƒãƒˆã®æœ€å¤§
fragarach_the_sword 2013/01/23
kernel: TCP: time wait bucket table overflow ã®è§£æ¶ˆã¨TIME_WAITã‚’æ¸›ã‚‰ã™ãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚° - æ°—ã¾ã¾ã«ã‚¤ãƒ³ãƒ•ãƒ©ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢

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ã€Œnet.ipv4.tcp_tw_recycleã€ã‚’æœ‰åŠ¹ã«ã™ã‚‹ã®ã¯ï¼ˆå ´åˆã«ã‚ˆã£ã¦ã¯ï¼‰ã‚„ã‚ãŸæ–¹ãŒã„ã„ - pullphone's blog
ãã‚‚ãã‚‚ã€Œtcp_tw_recycleã€ã£ã¦ãªã«ï¼Ÿ TIME_WAITçŠ¶æ…‹ã®ã‚½ã‚±ãƒƒãƒˆ*1ã‚’é«˜é€Ÿã«å†åˆ©ç”¨ã™ã‚‹ãŸã‚ã®Linuxã‚«ãƒ¼ãƒãƒ«ç‰¹æœ‰ã®ä»•çµ„ã¿ã‚‰ã—ã„ã€‚ ã€Œ/etc/sysctl.confã€ã§ã“ã„ã¤ï¼ˆnet.ipv4.tcp_tw_recycleï¼‰ã‚’1ã«ã—ã¦ã‚„ã£ã¦ã€Œsysctl -pã€ã™ã‚‹ã ã‘ã§æœ‰åŠ¹ã«ãªã‚Šã¾ã™ã€‚ ã€ŒTIME_WAITã®ã‚½ã‚±ãƒƒãƒˆã‚’å°‘ãªãã—ã¦ãã‚Œã‚‹ã‚“ã§ã—ã‚‡ï¼Ÿã„ã„ã˜ã‚ƒã‚“ï¼ã€ã¨ã„ã†æ„Ÿã˜ã§è¨å®šã—ã¦ã—ã¾ã„ãã†ã«ãªã‚Šã¾ã™ãŒãƒ»ãƒ»ãƒ» ãªã‚“ã§ãƒ€ãƒ¡ãªã®ï¼Ÿ çµè«–ã‹ã‚‰è¨€ã†ã¨ã€ã“ã„ã¤ã‚’æœ‰åŠ¹ã«ã—ãŸã¨ãã€åŒã˜ã‚°ãƒãƒ¼ãƒãƒ«IPã®ã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã‹ã‚‰ã®æŽ¥ç¶šã§ã‹ã¤TCPãƒ‘ã‚±ãƒƒãƒˆã«ã‚¿ã‚¤ãƒ ã‚¹ã‚¿ãƒ³ãƒ—æƒ…å ±ãŒå…¥ã£ã¦ã„ã‚‹å ´åˆã§ã€ã»ã¼åŒæ™‚ã«ãƒ‘ã‚±ãƒƒãƒˆã‚’é€ã‚‹ã¨ã€å¤ã„ã‚¿ã‚¤ãƒ ã‚¹ã‚¿ãƒ³ãƒ—ã®æ–¹ã®ãƒ‘ã‚±ãƒƒãƒˆã‚’å‹æ‰‹ã«ãƒ‰ãƒãƒƒãƒ—ã—ã¡ã‚ƒã„ã¾ã™ã€‚ ã©ã†ã„ã†ã“ã¨ãªã®ãƒ»ãƒ»ãƒ» ã€Œtcp_tw_recycleã€ã¯ã€ã€ŒåŒä¸€IPã‹ã‚‰ã®ãƒ‘ã‚±ãƒƒãƒˆãŒåˆ°ç€ã—ãŸã¨ãã€ä½¿ã£ã¦ã„ãŸã‚½ã‚±
fragarach_the_sword 2013/01/23
ã€Œnet.ipv4.tcp_tw_recycleã€ã‚’æœ‰åŠ¹ã«ã™ã‚‹ã®ã¯ï¼ˆå ´åˆã«ã‚ˆã£ã¦ã¯ï¼‰ã‚„ã‚ãŸæ–¹ãŒã„ã„ - pullphone's blog

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fragarach_the_sword 2012/01/10
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fragarach_the_sword 2010/05/01
Yet Another (remote) Process Monitor Project Top Page - SourceForge.JP

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Process Monitor ã«ã¤ã„ã¦ã® Tips - Ask CORE - Site Home - TechNet Blogs
This browser is no longer supported. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Microsoft Learn. Spark possibility. Build skills that open doors. See all you can do with documentation, hands-on training, and certifications to help you get the most from Microsoft products. Learn by doing Gain the skills you can apply to everyday situ
fragarach_the_sword 2010/05/01
Ask CORE : Process Monitor ã«ã¤ã„ã¦ã® Tips

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fragarach_the_sword 2008/12/17
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fragarach_the_sword 2008/12/05
@IT: OracleSQLãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°å£åº§

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Xbench: Comprehensive Macintosh Benchmarking
Xbench is Freeware. If you would like to support future development, please make a donation: Alternate donation methods. "I only tried your product out this afternoon for the first time. I'm really impressed. I heard some buzz about it on versiontracker and some of the tech sites, but thought it was "only" a bench mark utility. I had no idea until I downloaded it and watched it run that it was a t
fragarach_the_sword 2008/11/03
MacOSBenchmarkXbench

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