[B! Linux][Kernel] nippondanjiã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

nippondanji id:nippondanji

Linuxã¨Kernelã«é–¢ã™ã‚‹nippondanjiã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (6)

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Flashã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸å‘ã‘ã«æ–°I/Oã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒ©ã‚’ææ¡ˆ - Linuxã‚«ãƒ¼ãƒãƒ«
Linuxã‚«ãƒ¼ãƒãƒ«ãƒ¡ãƒ¼ãƒªãƒ³ã‚°ãƒªã‚¹ãƒˆã«ã€Flashãƒ™ãƒ¼ã‚¹ã®ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸å‘ã‘ã®æ–°ã—ã„I/Oã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒ©ã®ã‚¢ã‚¤ãƒ‡ã‚¢ã¨ã€ã“ã®ã‚¢ã‚¤ãƒ‡ã‚¢ã‚’å®Ÿç¾ã™ã‚‹ãŸã‚ã®ãƒ‘ãƒƒãƒãŒå…¬é–‹ã•ã‚ŒãŸã€‚ãƒ‡ã‚£ã‚¹ãƒ‘ãƒƒãƒã®æ±ºå®šã«ã‚¹ãƒ©ã‚¤ã‚¹ã§ã¯ãªãIOPSç‰¹æ€§ã‚’åˆ©ç”¨ã—ãŸä»•çµ„ã¿ã‚’æŽ¡ç”¨ã—ã¦ãŠã‚Šã€ã€ŒFIOPS (Fair IOPS) I/Oã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒ©ã€ã¨å‘¼ã°ã‚Œã¦ã„ã‚‹ã€‚ ãƒãƒ¼ãƒ‰ãƒ‡ã‚£ã‚¹ã‚¯ã®å†…éƒ¨ã§ã¯ãƒ‡ã‚£ã‚¹ã‚¯ãŒå›žè»¢ã—ã¦ãŠã‚Šã€I/Oã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒ©ã¯ã“ã®ç‰©ç†ç‰¹æ€§ã‚’åŠ å‘³ã—ãŸè¨è¨ˆã¨ãªã£ã¦ã„ã‚‹ã€‚ä¸€æ–¹ã§ã€ãƒ‡ã‚£ã‚¹ã‚¯ã®å›žè»¢ãŒãªã„SSDãªã©ã®Flashãƒ™ãƒ¼ã‚¹ã®ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã¯ã€ãƒãƒ¼ãƒ‰ãƒ‡ã‚£ã‚¹ã‚¯ã¨ã¯ç‰¹æ€§ãŒç•°ãªã£ã¦ãã‚‹ã€‚ å…¬é–‹ã•ã‚ŒãŸã‚¢ã‚¤ãƒ‡ã‚¢ã§ã¯ã€ã¾ãšãƒãƒ¼ãƒ‰ãƒ‡ã‚£ã‚¹ã‚¯ã¨ã¯ç•°ãªã‚‹Flashãƒ™ãƒ¼ã‚¹ã‚¹ãƒˆãƒ¬ãƒ¼ã‚¸ã®ç‰¹å¾´ã¨ã—ã¦æ¬¡ã®4ç‚¹ã‚’èª¬æ˜Žã—ã€å¾“æ¥ã®I/Oã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒ©ã®æƒ³å®šã¨ç•°ãªã‚‹ã“ã¨ã‚’æŒ‡æ‘˜ã—ã¦ã„ã‚‹ã€‚ I/Oã‚·ãƒ¼ã‚¯ãŒç™ºç”Ÿã—ãªã„ èªã¿è¾¼ã¿ã¨æ›¸ãè¾¼ã¿ã®ã‚³ã‚¹ãƒˆãŒå¤§ããç•°ãªã‚‹ ãƒªã‚¯ã‚¨ã‚¹ãƒˆã«ã‹ã‹ã‚‹æ™‚é–“ã¯ãƒªã‚¯ã‚¨
nippondanji 2012/01/11
FIOPSã¨ãªã€‚

linux

kernel
ãƒªãƒ³ã‚¯
United States
Best Places to Work in IT 2025Our 31st annual report finds that leading companies prioritize upskilling and retention strategies as IT expands its impact and influence across the business.
nippondanji 2011/10/25
Linuxã®é€²åŒ–ã¯å‡„ã¾ã˜ã„é€Ÿã•ã ã¨å®Ÿæ„Ÿã™ã‚‹æ—¥ã€…ã€‚ã“ã‚Œã‚‚ç§ãŒLinux Desktopã‚’ä½¿ç”¨ã™ã‚‹ç†ç”±ã®ã²ã¨ã¤ã€‚

linux

Kernel
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Low_On_Memory - linux-mm.org Wiki
It's a common dilemma: I just got a brand new Linux machine, loaded it up with lots of expensive RAM, and left it for a day. Now, it's out of memory, or it is swapping! It definitely has enough RAM, so there must be a bug in Linux!I assure you, in almost all cases, your system has plenty of RAM. However, where is all of that RAM going? For what does Linux use all of it? How can I actually tell tha
nippondanji 2011/07/12
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linux

Kernel
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ãªã‚“ã‹ã‚¹ãƒ©ãƒ‰ã®ãƒˆãƒ”ãƒƒã‚¯ãŒç«‹ã£ã¦ã„ãŸã®ã§ã€ã—ã°ã‚‰ãã‚³ãƒ¡ãƒ³ãƒˆèªã‚“ã§ãŸã€‚ å…ƒè¨˜äº‹ï¼š http://gihyo.jp/admin/clip/01/linux_dt/201011/18 ã‚¹ãƒ©ãƒ‰ï¼š http://slashdot.jp/linux/article.pl?sid=10/11/21/0354238 ãªã‚“ã‹å…¨ç„¶ã¨ã‚“ã¡ã‚“ã‹ã‚“ãªã‚³ãƒ¡ãƒ³ãƒˆãŒçµæ§‹ã‚ã£ã¦SNæ¯”æ‚ªã„ãã€‚ æ£ç›´gihyoã®è¨˜äº‹ã¯ã‚¹ãƒ©ãƒ‰æœ¬å®¶ã‹ã‚‰ãƒ‘ã‚¯ã£ã¦ããŸã®ãŒä¸¸ã‚ã‹ã‚Šã§è©•ä¾¡ãŒä½Žã‹ã£ãŸã®ã ã‘ã‚Œã©ã‚‚ã€ã„ã„æ„Ÿã˜ã«èª¤è§£ãŒèª¤è§£ã‚’ç”Ÿã‚“ã§ã„ã‚‹ã‚ˆã†ã ã€‚ èª¤è§£ï¼‘ï¼š ã„ã¾ã¾ã§èª°ã‚‚æ€ã„ã¤ã‹ãªã‹ã£ãŸãƒŸãƒ©ã‚¯ãƒ«ãªãƒ‘ãƒƒãƒã§ã‚ã‚‹ã€‚ã²ã‚ƒã£ã»ãƒ¼ èª¤è§£ï¼’ï¼š ttyã®ãƒãƒƒã‚¯ã‚’æ¸›ã‚‰ã™ã®ã«æ„å‘³ãŒã‚ã‚‹ èª¤è§£ï¼“ï¼š ã“ã®ãƒ‘ãƒƒãƒã¯WindowsãŒã‚„ã£ã¦ã„ã‚‹ã‚ˆã†ãªãƒ•ã‚©ã‚¢ã‚°ãƒ©ã‚¦ãƒ³ãƒ‰ã‚¢ãƒ—ãƒªã®å„ªå…ˆåº¦ã‚’ãƒ–ãƒ¼ã‚¹ãƒˆã™ã‚‹ãƒ‘ãƒƒãƒã§ã‚ã‚‹ ãµã¯ã¯ ã“ã‚Œã‚’ãƒŸãƒ©ã‚¯ãƒ«ãƒ‘ãƒƒãƒã ã¨æ€ã£ã¦ã‚‹äººã¯LKMLã«ã¯ã„ãªã„ã‚“ã˜ã‚ƒãªã„ã‹
nippondanji 2010/11/22
"ã¦ã‚†ãƒ¼ã‹ã€ãã‚ãã‚åƒ•ã¯ã¾ãŸåŽŸç¨¿æ›¸ã‹ã›ã¦ãã ã•ã„ã£ã¦é ã‚’ä¸‹ã’ã«è¡Œãã¹ãã ã¨æ€ã†ã‚“ã ã€‚" <=== æ›¸ã„ã¦ãã ã•ã„ZEHI!

Kernel

linux

kosaki
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Alternative To The "200 Lines Kernel Patch That Does Wonders" Which You Can Use Right Away
Phoronix recently published an article regarding a ~200 lines Linux Kernel patch that improves responsiveness under system strain. Well, Lennart Poettering, a RedHat developer replied to Linus Torvalds on a maling list with an alternative to this patch that does the same thing yet all you have to do is run 2 commands and paste 4 lines in your ~/.bashrc file. I know it soundsÂ unbelievable, but appa
nippondanji 2010/11/22
Red Hatã®äººãŒã‚½ãƒ¼ã‚¹ãªã®ã‹ã€‚Red Hatã®äººã«ã‚ˆã‚‹è§£èª¬ã‚’æœŸå¾…ã—ã¦ã‚‹ã¨è¨€ã£ã¦ã¿ã‚‹ãƒ†ã‚¹ãƒˆï½—

Kernel

ubuntu

Linux

redhat
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2010å¹´11æœˆ18æ—¥ã€€"ãƒŸãƒ©ã‚¯ãƒ«ãƒ‘ãƒƒãƒ"ã«Linusã‚‚å¤§å–œã³ï¼Linuxã‚«ãƒ¼ãƒãƒ«ã‚’é«˜é€ŸåŒ–ã•ã›ãŸ233è¡Œã®ã‚³ãƒ¼ãƒ‰ | gihyo.jp
Linux Daily Topics 2010å¹´11æœˆ18æ—¥"ãƒŸãƒ©ã‚¯ãƒ«ãƒ‘ãƒƒãƒ"ã«Linusã‚‚å¤§å–œã³ï¼Linuxã‚«ãƒ¼ãƒãƒ«ã‚’é«˜é€ŸåŒ–ã•ã›ãŸ233è¡Œã®ã‚³ãƒ¼ãƒ‰ Linus Torvaldsæ°ã¨ã„ã†äººã¯ã€å°‘ãªãã¨ã‚‚ãƒ¡ãƒ¼ãƒ«ã®ä¸ã§ã¯ã€ã‹ãªã‚Šã¯ã£ãã‚Šã¨æ„Ÿæƒ…ã‚’è¡¨ã«å‡ºã™ã€‚èª°ã‹orä½•ã‹ã«å¯¾ã—ã¦æ€’ã£ã¦ã„ã‚‹ã¨ãã¯ç›¸æ‰‹ã‚’åæŒ‡ã—ã§æ‰¹åˆ¤ï¼ˆã¨ã„ã†ã‚ˆã‚Šéžé›£ï¼‰ã—ã€é€†ã«ã†ã‚Œã—ã„ã¨ãã¯ã‚ãµã‚Œã‚‹å–œã³ã‚’éš ãã†ã¨ã—ãªã„ã€‚ä»Šå›žç´¹ä»‹ã™ã‚‹ã®ã¯å¾Œè€…ã®ã»ã†ã€‚ã€Œâ I'm also very happyã€ã€Œâ it is a _huge_ improvementã€ã€Œâ Good job.ã€ãªã©ã€å–œã³ã¨ç§°è³›ã®è¡¨ç¾ãŒãŸãã•ã‚“æ›¸ã‹ã‚Œã¦ã„ã‚‹ãƒ¡ãƒ¼ãƒ«ã ã€‚ Linusæ°ã‚’æ“å–œã•ã›ãŸã®ã¯ã€ã‚«ãƒ¼ãƒãƒ«é–‹ç™ºã«æºã‚ã‚‹Mike Galbraithæ°ãŒæ›¸ã„ãŸ233è¡Œã®ã‚«ãƒ¼ãƒãƒ«ã‚¹ã‚±ã‚¸ãƒ¥ãƒ¼ãƒªãƒ³ã‚°ãƒ‘ãƒƒãƒã€‚ã“ã®ãƒ‘ãƒƒãƒã‚’é©ç”¨ã™ã‚‹ã¨ã€ãƒ‡ã‚¹ã‚¯ãƒˆãƒƒãƒ—ç’°å¢ƒã«ãŠã„ã¦ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ãŒè‘—ã—ãå‘ä¸Šã™ã‚‹ã¨ã„ã†ã€‚
nippondanji 2010/11/19
2.6.38å¾…ã¡ãã‚Œã‚“ãƒ»ãƒ»ãƒ»(;Â´Ð”ï½€)ï¾Šï½§ï¾Šï½§

linux

Kernel

performance
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1