[B! golang][GC] Akinekoã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

Akineko id:Akineko

golangã¨GCã«é–¢ã™ã‚‹Akinekoã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (4)

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Goã®GC (garbage collector)ã«ã¤ã„ã¦ç†è§£ã™ã‚‹
NOT A HOTEL TECH TALK ãƒ¼SOFTWARE 3.0ã¸ã®é“ç‹ãƒ¼ NEXT Web3 (2024-08-07)
Akineko 2022/04/23
golang

GC
ãƒªãƒ³ã‚¯
Goã¯ã„ã¤GCã™ã‚‹ã®ã‹?
TL;DR Go(ã®ãƒ©ãƒ³ã‚¿ã‚¤ãƒ )ã¯ä»¥ä¸‹ã®ã‚¿ã‚¤ãƒŸãƒ³ã‚°ã§è‡ªå‹•çš„ã«GCã‚’å®Ÿè¡Œã™ã‚‹ å‰å›žã®GCå¾Œã«å æœ‰ã—ã¦ã„ãŸãƒ¡ãƒ¢ãƒªã¨åŒé‡ã‚’æ–°ãŸã«ç¢ºä¿ã—ãŸã¨ã å‰å›žã®GCã‹ã‚‰2åˆ†å¾Œ cgroupãªã©ã§ãƒ¡ãƒ¢ãƒªåˆ¶é™ã—ã¦ã„ã‚‹ã¨ãã¯ã€ãƒ¡ãƒ¢ãƒªä½¿ç”¨é‡ãŒåˆ¶é™ã®50%ä»¥ä¸Šã«ãªã£ãŸã‚‰runtime.GC()ã‚’å‘¼ã³æ‰‹å‹•ã§GCã™ã¹ãã§ã‚ã‚‹ å‰ç½®ã: Goã¨OOMã®ã“ã‚Œã¾ã§ ä»¥ä¸‹ã¯Go 1.16ã§ã®èª¿æŸ»çµæžœã§ã™ã€‚Goã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ãŒç•°ãªã£ãŸå ´åˆã¯äº‹æƒ…ãŒç•°ãªã‚‹å¯èƒ½æ€§ãŒã‚ã‚Šã¾ã™ã€‚ Goã§ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’æ›¸ãéš›ã«ã€ä½¿ç”¨ãƒ¡ãƒ¢ãƒªé‡ã‚’æ°—ã«ã—ãªã‘ã‚Œã°ãªã‚‰ãªã„ã‚·ãƒ¼ãƒ³ã¯GCã®ãŠã‹ã’ã§ãã†å¤šãã¯ã‚ã‚Šã¾ã›ã‚“ã€‚å®Ÿéš›ãã‚Œã¯é–“é•ã„ã§ã¯ãªã„ã®ã§ã™ãŒã€é‹ç”¨ã¾ã§è¦–é‡Žã«å…¥ã‚Œã‚‹ã¨ãã†ã¯è¨€ã£ã¦ã‚‰ã‚Œãªã„ã“ã¨ãŒã‚ã‚‹ã®ã‚‚ã¾ãŸç¾å®Ÿã§ã™ã€‚æ˜¨ä»Šã¯ã‚³ãƒ³ãƒ†ãƒŠã®åˆ©ç”¨ãŒå½“ãŸã‚Šå‰ã«ãªã£ãŸã“ã¨ã«ä¼´ã„ã€OOMã«ã‚ˆã‚Šãƒ—ãƒã‚»ã‚¹ãŒå¼·åˆ¶çš„ã«çµ‚äº†ã•ã›ã‚‰ã‚Œã‚‹ã“ã¨ã‚‚ã‚ã‚Šã€ãã‚Œã‚’é¿ã‘ã‚‹ãŸã‚ã«ä¸€å®šé‡ä»¥ä¸‹ã®ãƒ¡ãƒ¢ãƒªã§å‹•ãã“ã¨ãŒé‡
Akineko 2021/07/21
golang

GC
ãƒªãƒ³ã‚¯
Goè¨€èªžã®ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ GCã€€ç†è«–ã¨å®Ÿè·µ | POSTD
(ç·¨æ³¨ï¼šèª¤è¨³ã€æ„å‘³ã®åˆ†ã‹ã‚Šã¥ã‚‰ã„è¨³ã‚’ä¿®æ£ã—ã¾ã—ãŸã€‚ãƒªã‚¯ã‚¨ã‚¹ãƒˆã‚ã‚ŠãŒã¨ã†ã”ã–ã„ã¾ã—ãŸã€‚) æ¯Žæ—¥ã€Pusherã¯æ•°åå„„ã®ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã‚’ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ã€ã¤ã¾ã‚Šé€ã‚Šå…ƒã‹ã‚‰å®›å…ˆã¾ã§100msæœªæº€ã§é€ä¿¡ã—ã¦ã„ã¾ã™ã€‚ã©ã®ã‚ˆã†ã«ã—ã¦ãã‚Œã‚’å¯èƒ½ã«ã—ã¦ã„ã‚‹ã®ã§ã—ã‚‡ã†ã‹ã€‚é‡è¦ã¨ãªã‚‹è¦å› ã¯Goã®ä½Žãƒ¬ã‚¤ãƒ†ãƒ³ã‚·ã®ã‚¬ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚¿ã§ã™ã€‚ ã‚¬ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚¿ã¯ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’ä¸€æ™‚åœæ¢ã•ã›ã‚‹ã‚‚ã®ã§ã‚ã‚Šã€ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ ã‚·ã‚¹ãƒ†ãƒ ã®æ‚©ã¿ã®ç¨®ã§ã™ã€‚ãã®ãŸã‚ã€æ–°ã—ã„ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ãƒã‚¹ã‚’è¨è¨ˆã™ã‚‹éš›ã«ã¯æ…Žé‡ã«è¨€èªžã‚’é¸ã³ã¾ã—ãŸã€‚Goã¯ ä½Žãƒ¬ã‚¤ãƒ†ãƒ³ã‚·ã‚’å¼·èª¿ã—ã¦ã„ã‚‹ ã‚‚ã®ã®ã€ç§ãŸã¡ã¯æ‡ç–‘çš„ã§ã—ãŸã€‚ã€Œæœ¬å½“ã«Goã‚’ä½¿ãˆã°å®Ÿç¾ã§ãã‚‹ã®ã‹ï¼Ÿã€€ã‚‚ã—ã§ãã‚‹ãªã‚‰ã©ã†ã‚„ã£ã¦ï¼Ÿã€ ã“ã®ãƒ–ãƒã‚°è¨˜äº‹ã§ã¯Goã®ã‚¬ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚¿ã‚’ã€ã©ã®ã‚ˆã†ã«æ©Ÿèƒ½ã—ï¼ˆãƒˆãƒªã‚³ãƒãƒ¼ãƒ«ã‚¢ãƒ«ã‚´ãƒªã‚ºãƒ ï¼‰ã€ãªãœæ©Ÿèƒ½ã—ï¼ˆã“ã‚“ãªã«çŸã„GCã«ã‚ˆã‚‹ä¸€æ™‚åœæ¢æ™‚é–“ã®å®Ÿç¾ï¼‰ã€ãã—ã¦ä½•ã‚ˆã‚Šã‚‚ã€ãã‚ŒãŒæ©Ÿèƒ½ã™ã‚‹ã®ã‹ã©ã†ã‹ï¼ˆGCã«ã‚ˆã‚‹
Akineko 2017/04/28
golang

gc
ãƒªãƒ³ã‚¯
Goè¨€èªžã®ä½Žãƒ¬ã‚¤ãƒ†ãƒ³ã‚·GCå®Ÿç¾ã®ãŸã‚ã®å–ã‚Šçµ„ã¿ | POSTD
(è¨³æ³¨ï¼š2016/9/28ã€é ‚ãã¾ã—ãŸãƒ•ã‚£ãƒ¼ãƒ‰ãƒãƒƒã‚¯ã‚’å…ƒã«è¨˜äº‹ã‚’ä¿®æ£ã„ãŸã—ã¾ã—ãŸã€‚) ç§ãŸã¡ Twitch ã§ã¯ã€é€šä¿¡ãŒå¤§å¤‰æ··ã¿åˆã†ã‚·ã‚¹ãƒ†ãƒ ã®å¤šãã§ Go ã‚’æŽ¡ç”¨ã—ã¦ã„ã¾ã™ã€‚ãƒ©ã‚¤ãƒ–æ˜ åƒã‚’é…ä¿¡ã—ãŸã‚Šã€ä½•ç™¾ä¸‡äººã¨ã„ã†ãƒ¦ãƒ¼ã‚¶ã«ãƒãƒ£ãƒƒãƒˆã‚µãƒ¼ãƒ“ã‚¹ã‚’æä¾›ã—ãŸã‚Šã™ã‚‹å ´åˆã«ç›´é¢ã™ã‚‹å•é¡Œã‚’è€ƒæ…®ã™ã‚‹ã¨ã€Goã¯ãã®ã‚·ãƒ³ãƒ—ãƒ«ã•ã‚„å®‰å…¨æ€§ã€ãƒ‘ãƒ•ã‚©ãƒ¼ãƒžãƒ³ã‚¹ã€èªã¿ã‚„ã™ã•ã®ç‚¹ã§è‰¯ã„ãƒ„ãƒ¼ãƒ«ã ã¨è¨€ãˆã¾ã™ã€‚ ã—ã‹ã—ã“ã‚Œã¯ã€ç§ãŸã¡ã«ã¨ã£ã¦GoãŒã„ã‹ã«ç´ æ™´ã‚‰ã—ã„ãƒ„ãƒ¼ãƒ«ã‹ã‚’èª¬æ˜Žã™ã‚‹ã€ã‚ˆãã‚ã‚‹è¨˜äº‹ã§ã¯ã‚ã‚Šã¾ã›ã‚“ã€‚Goã§ç¾åœ¨å®Ÿè£…ã•ã‚Œã¦ã„ã‚‹ãƒ©ãƒ³ã‚¿ã‚¤ãƒ ã«ã‚ˆã‚Šè¡Œãè©°ã¾ã£ãŸã„ãã¤ã‹ã®å±€é¢ã‚’ã©ã†æ‰“é–‹ã™ã‚‹ã‹ã€ã•ã‚‰ã«ã€ç§ãŸã¡ã¯ãã†ã—ãŸé™ç•Œã«é”ã—ãŸæ™‚ã«ã©ã†å¯¾å¿œã—ãŸã‚‰ã„ã„ã®ã‹ã«ã¤ã„ã¦æ›¸ã„ãŸã‚‚ã®ã§ã™ã€‚ ã“ã‚Œã‹ã‚‰ãŠè©±ã—ã™ã‚‹ã®ã¯ã€ã€ŒGo 1.4ã‹ã‚‰Go 1.6ã¸ã®Goãƒ©ãƒ³ã‚¿ã‚¤ãƒ ã®æ”¹å–„ãŒã€ã©ã®ã‚ˆã†ã«ã—ã¦ã‚¬ãƒ™ãƒ¼ã‚¸ã‚³ãƒ¬ã‚¯ã‚·ãƒ§ãƒ³ï¼ˆGCï¼‰ã®åœæ¢æ™‚é–“ã‚’20å€ã‚‚æ”¹å–„ã™ã‚‹ã“ã¨ã«
Akineko 2016/11/04
golang

gc
ãƒªãƒ³ã‚¯
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