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y_uuki id:y_uuki

TCPã¨ã‚ã¨ã§èªã‚€ã«é–¢ã™ã‚‹y_uukiã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (8)

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y_uuki 2018/01/31
TCP

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2017å¹´10æœˆ27æ—¥ã€ãƒ¢ãƒŽãƒ“ãƒƒãƒˆã‚¨ãƒ³ã‚¸ãƒ³å‹‰å¼·ä¼šinã‚µã‚¤ãƒãƒ¼ã‚³ãƒã‚¯ãƒˆãƒ„ãƒ¼ã«ã¦ã€ä¸å¶‹è¬™äº’ãŒè¬›æ¼”ã—ã¾ã—ãŸã€Œãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚²ãƒ¼ãƒ ã«ãŠã‘ã‚‹ TCPã¨UDPã®ä½¿ã„åˆ†ã‘ã€ã®ã‚¹ãƒ©ã‚¤ãƒ‰ã«ãªã‚Šã¾ã™ã€‚ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚²ãƒ¼ãƒ ã‚’è£½ä½œã™ã‚‹éš›ã«ã”å‚è€ƒé ‚ã‘ã¾ã™ã¨å¹¸ã„ã§ã™ã€‚ ç™»å£‡è€…ï¼š æ ªå¼ä¼šç¤¾ãƒ¢ãƒŽãƒ“ãƒƒãƒˆ å–ç· å½¹ CTO ä¸å¶‹è¬™äº’Read less
y_uuki 2017/11/03
TCP

game

network

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ã‚³ãƒ©ãƒ - ã‚°ãƒ¼ã‚°ãƒ«ã®ã‚¯ãƒ©ã‚¦ãƒ‰ã‚’æ”¯ãˆã‚‹ãƒ†ã‚¯ãƒŽãƒã‚¸ãƒ¼ | ç¬¬22å›žã€€ãƒ‘ã‚±ãƒƒãƒˆãƒã‚¹ã«åŸºã¥ã‹ãªã„æ–°ã—ã„è¼»è¼³åˆ¶å¾¡ã®ä»•çµ„ã¿ â€• BBRï¼ˆå‰ç·¨ï¼‰ï½œCTCæ•™è‚²ã‚µãƒ¼ãƒ“ã‚¹ ç ”ä¿®/ãƒˆãƒ¬ãƒ¼ãƒ‹ãƒ³ã‚°
[ITç ”ä¿®]æ³¨ç›®ã‚ãƒ¼ãƒ¯ãƒ¼ãƒ‰ Python UiPath(RPA) æœ€æ–°æŠ€è¡“å‹•å‘ Microsoft Azure Docker Kubernetes ç¬¬22å›žã€€ãƒ‘ã‚±ãƒƒãƒˆãƒã‚¹ã«åŸºã¥ã‹ãªã„æ–°ã—ã„è¼»è¼³åˆ¶å¾¡ã®ä»•çµ„ã¿ â€• BBRï¼ˆå‰ç·¨ï¼‰ (ä¸äº•æ‚¦å¸) 2017å¹´8æœˆ ã¯ã˜ã‚ã« ä»Šå›žã¯ã€2016å¹´ã«å…¬é–‹ã•ã‚ŒãŸå¦è¡“è¨˜äº‹ã€ŒBBR: Congestion-Based Congestion Controlã€ã‚’ã‚‚ã¨ã«ã—ã¦ã€GoogleãŒé–‹ç™ºã—ãŸã€ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯é€šä¿¡ã«ãŠã‘ã‚‹æ–°ã—ã„è¼»è¼³åˆ¶å¾¡ã®ä»•çµ„ã¿ã‚’è§£èª¬ã—ã¾ã™ã€‚TCP/IPãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã§ä¼çµ±çš„ã«ç”¨ã„ã‚‰ã‚Œã¦ããŸè¼»è¼³åˆ¶å¾¡ã§ã¯ã€ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ä¸Šã§ã®ãƒ‘ã‚±ãƒƒãƒˆãƒã‚¹ã‚’æ¤œçŸ¥ã—ãŸéš›ã«ãƒ‘ã‚±ãƒƒãƒˆã®é€å‡ºé »åº¦ã‚’ãŠã•ãˆã‚‹ã¨ã„ã†ä»•çµ„ã¿ãŒåˆ©ç”¨ã•ã‚Œã¦ã„ã¾ã™ã€‚ã—ã‹ã—ãªãŒã‚‰ã€ã“ã®ä»•çµ„ã¿ã«ã¯ã€ç¾ä»£ã®é«˜æ€§èƒ½ãªãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯æ©Ÿå™¨ã«ã¯æœ€é©åŒ–ã•ã‚Œã¦ã„ãªã„ã¨ã„ã†èª²é¡ŒãŒã‚ã‚Šã¾ã—ãŸã€‚ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã®å¸¯åŸŸã‚’ååˆ†ã«æ´»ç”¨ã—ãªãŒã‚‰ã€ãƒ‘
y_uuki 2017/08/23
TCP

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TCP BBR congestion control comes to GCP â€“ your Internet just got faster | Google Cloud Blog
We're excited to announce that Google Cloud PlatformÂ (GCP) now features a cutting-edge new congestion control algorithm, TCP BBR, which achieves higher bandwidths and lower latencies for internet traffic. This is the same BBR that powers TCP traffic from google.com and that improved YouTube network throughput by 4 percent on average globallyÂ â€”Â and by more than 14 percent in some countries. BBR all
y_uuki 2017/07/26
TCP

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ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚ãƒ£ãƒ—ãƒãƒ£ãƒ‡ãƒ¼ã‚¿ã‚’è¦‹ã‚‹æ™‚ã®Tips - Qiita
ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã®ãƒˆãƒ©ãƒ–ãƒ«ã‚·ãƒ¥ãƒ¼ãƒˆãªã©ã‚’ã™ã‚‹æ™‚ã«tcpdumpã‚„wiresharkã¨ã„ã£ãŸãƒ„ãƒ¼ãƒ«ã‚’ä½¿ã£ã¦ã‚ãƒ£ãƒ—ãƒãƒ£ãƒ‡ãƒ¼ã‚¿ã‚’å–å¾—ã—ã€æ£å¸¸ã§ã¯ãªã„é€šä¿¡ã‚’ç‰¹å®šã™ã‚‹ãªã©åˆ†æžã—ã¾ã™ã€‚ãã®æ™‚ã«IPã‚¢ãƒ‰ãƒ¬ã‚¹ã‚„ãƒãƒ¼ãƒˆç•ªå·ã¨ã„ã£ãŸã“ã¨ã¯å½“ç„¶ç¢ºèªã™ã‚‹ã¨æ€ã„ã¾ã™ãŒã€æœ¬è¨˜äº‹ã§ã¯ãã‚Œä»¥å¤–ã«åˆ†æžã«åˆ©ç”¨ã§ããã†ãªå°æŠ€ã‚’ã„ãã¤ã‹ç´¹ä»‹ã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ãŠé¡Œã¯ä»¥ä¸‹ã®ã¨ãŠã‚Šã§ã™ã€‚ MACã‚¢ãƒ‰ãƒ¬ã‚¹ã‹ã‚‰NICã®ãƒ™ãƒ³ãƒ€ãƒ¼ãŒåˆ†ã‹ã‚‹ IPãƒ˜ãƒƒãƒ€ã‹ã‚‰ãŠãŠã‚ˆãã®ãƒ›ãƒƒãƒ—æ•°ãŒæŽ¨æ¸¬ã§ãã‚‹ TCP/IPãƒ˜ãƒƒãƒ€ã‹ã‚‰OSã‚’æŽ¨å®šã§ãã‚‹ TCPã®3-way-handshakeã‹ã‚‰ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã®é…å»¶ã‚’æ¸¬ã‚Œã‚‹ TCPã®å†é€çŠ¶æ³ã‹ã‚‰ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯å“è³ªã®å¤‰åŒ–ã‚’è¦‹ã‚Œã‚‹ DHCP/mDNS/NBNS/LLMNR ã‹ã‚‰åŒä¸€ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯å†…ã®ãƒ›ã‚¹ãƒˆåãŒã‚ã‹ã‚‹ TLSã®client helloã‹ã‚‰æŽ¥ç¶šå…ˆã®ãƒ›ã‚¹ãƒˆåãŒã‚ã‹ã‚‹ ã€æ³¨æ„äº‹é …ã€‘ æœ¬è·ã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã®æ–¹ã«ã¨ã£ã¦ã¯å½“ãŸ
y_uuki 2017/04/23
ã‚ã¨ã§èªã‚€

network

TCP
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Googleã®QUICãƒ—ãƒãƒˆã‚³ãƒ«ï¼šTCPã‹ã‚‰UDPã¸Webã‚’ç§»è¡Œã™ã‚‹ | POSTD
QUICï¼ˆQuick UDP Internet Connectionsï¼‰ãƒ—ãƒãƒˆã‚³ãƒ«ã¯ã€TCPã§ã¯ãªãUDPã‚’ãƒ™ãƒ¼ã‚¹ã¨ã—ã¦é–‹ç™ºã•ã‚ŒãŸã€å…¨ãæ–°ã—ã„Webå‘ã‘ã®ãƒ—ãƒãƒˆã‚³ãƒ«ã§ã™ã€‚ ï¼ˆå†—è«‡ã§ï¼‰ TCP/2 ã¨å‘¼ã¶äººã¾ã§ã„ã¾ã™ã€‚ ç§ãŒQUICã«ã¤ã„ã¦çŸ¥ã£ãŸã®ã¯æ•°é€±é–“å‰ã®ã“ã¨ã§ã™ã€‚ SysCast Podcastã®curlã¨libcurlã«ã¤ã„ã¦ã®ã‚¨ãƒ”ã‚½ãƒ¼ãƒ‰ ã‚’èžã„ã¦ã„ãŸæ™‚ã§ã—ãŸã€‚ QUICãƒ—ãƒãƒˆã‚³ãƒ«ã®æœ¬å½“ã«é¢ç™½ã„ç‚¹ã¯ã€UDPã¸ã®ç§»è¡Œã¨ã„ã†ã¨ã“ã‚ã ã¨æ€ã„ã¾ã™ã€‚ ç¾åœ¨ã€Webã®ä¼é€ãƒ—ãƒãƒˆã‚³ãƒ«ã¯ã€ä¿¡é ¼æ€§ã‚’ç¢ºä¿ã™ã‚‹ãŸã‚ã€TCPä¸Šã«æ§‹ç¯‰ã•ã‚Œã¦ã„ã¾ã™ã€‚ã“ã®TCPæŽ¥ç¶šã‚’é–‹å§‹ã™ã‚‹ãŸã‚ã«ã¯ã€ 3wayãƒãƒ³ãƒ‰ã‚·ã‚§ã‚¤ã‚¯ ãŒè¡Œã‚ã‚Œã¦ã„ã¾ã™ã€‚ã¤ã¾ã‚Šã“ã‚Œã¯ã€æŽ¥ç¶šã‚’é–‹å§‹ã™ã‚‹ãŸã³ã«ãƒ©ã‚¦ãƒ³ãƒ‰ãƒˆãƒªãƒƒãƒ— ï¼ˆãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãƒ‘ã‚±ãƒƒãƒˆã®å¾€å¾©ï¼‰ ãŒè¿½åŠ ã•ã‚Œã‚‹ã¨ã„ã†ã“ã¨ã§ã‚ã‚Šã€æ–°ãŸãªæŽ¥ç¶šå…ˆã«å¯¾ã—å¤§å¹…ãªé…å»¶ã‚’ç”Ÿã˜ã•ã›ã¦ã„ã‚‹ã®ã§ã™ã€‚ ï¼ˆå‡ºå…¸ï¼š UDPã‚’ä»‹
y_uuki 2016/08/27
ã‚ã¨ã§èªã‚€

TCP

quic
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Googleâ€™s QUIC protocol: moving the web from TCP to UDP
Want to help support this blog? Try out Oh Dear, the best all-in-one monitoring tool for your entire website, co-founded by me (the guy that wrote this bl ogpost). Start with a 10-day trial, no strings attached. We offer uptime monitoring, SSL checks, broken links checking, performance & cronjob monitoring, branded status pages & so much more. Try us out today! The QUIC protocol (Quick UDP Internet
y_uuki 2016/08/02
ã‚ã¨ã§èªã‚€

QUIC

TCP
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TCP small queues [LWN.net]
The "bufferbloat" probl em is the result of excessive buffering in the network stack; it leads to long latencies and poor reliability in the network as a whole. Fixing it is a matter of buffering less data in each system between any two endpointsâ€”a task that sounds simple, but proves to be more challenging than one might expect. It turns out that buffering can show up in many surprising places in t
y_uuki 2016/03/30
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linux

kernel

tcp

performance
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