{"id":1430,"date":"2026-10-26T07:00:00","date_gmt":"2026-10-25T22:00:00","guid":{"rendered":"https:\/\/quantumsea.net\/?p=1430"},"modified":"2026-10-23T08:37:44","modified_gmt":"2026-10-22T23:37:44","slug":"qs-tcp-nagle-small-writes-20261023","status":"publish","type":"post","link":"https:\/\/quantumsea.net\/?p=1430","title":{"rendered":"TCP\u306eNagle\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3001\u5c0f\u3055\u306a\u9001\u4fe1\u3092\u5f85\u305f\u305b\u308b\u6761\u4ef6\u3068ACK\u306e\u95a2\u4fc2"},"content":{"rendered":"<p>\u77ed\u3044\u30c7\u30fc\u30bf\u3092\u30a2\u30d7\u30ea\u304b\u3089\u7d9a\u3051\u3066\u6e21\u3057\u305f\u306e\u306b\u3001\u4e8c\u3064\u76ee\u304c\u3059\u3050\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u51fa\u306a\u3044\u3002TCP\u3067\u306f\u3001\u305d\u306e\u7406\u7531\u306e\u4e00\u3064\u306b<strong>Nagle\uff08\u30cd\u30fc\u30b0\u30eb\uff09\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/strong>\u304c\u3042\u308a\u307e\u3059\u3002\u5c0f\u3055\u3044\u30d1\u30b1\u30c3\u30c8\u306e\u5897\u3048\u3059\u304e\u3092\u9632\u3050\u305f\u3081\u3001\u307e\u3060\u78ba\u8a8d\u3055\u308c\u3066\u3044\u306a\u3044\u9001\u4fe1\u304c\u3042\u308b\u9593\u3001\u5f8c\u7d9a\u306e\u77ed\u3044\u30c7\u30fc\u30bf\u3092\u307e\u3068\u3081\u307e\u3059\u3002\u5f85\u3064\u6761\u4ef6\u3092\u77e5\u308b\u3068\u3001\u901a\u4fe1\u306e\u9045\u3055\u3092\u56de\u7dda\u901f\u5ea6\u3060\u3051\u3067\u8003\u3048\u305a\u306b\u6e08\u307f\u307e\u3059\u3002<\/p>\n<section class=\"influvetor-quick-summary\">\n<p><strong>\u7c21\u5358\u306b\u307e\u3068\u3081\u308b\u3068\uff1f<\/strong><\/p>\n<ul>\n<li>Nagle\u306f\u3001\u672a\u78ba\u8a8d\u306e\u9001\u4fe1\u30c7\u30fc\u30bf\u304c\u3042\u308b\u3068\u304d\u306b\u3001\u5f8c\u7d9a\u306e\u5c0f\u3055\u3044\u30c7\u30fc\u30bf\u3092\u307e\u3068\u3081\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002\u3044\u3064\u3067\u3082\u4e00\u5b9a\u6642\u9593\u5f85\u3064\u30bf\u30a4\u30de\u30fc\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n<li>\u5148\u884c\u30c7\u30fc\u30bf\u304cACK\u3067\u78ba\u8a8d\u3055\u308c\u308b\u304b\u3001\u6709\u52b9MSS\u5206\u306e\u30c7\u30fc\u30bf\u304c\u305f\u307e\u308b\u3068\u3001\u3053\u306e\u5f85\u3061\u6761\u4ef6\u304c\u5916\u308c\u307e\u3059\u3002\u4ed6\u306e\u9001\u4fe1\u5236\u9650\u306f\u5225\u306b\u6b8b\u308a\u307e\u3059\u3002<\/li>\n<li>Linux\u306eTCP_NODELAY\u306fNagle\u3092\u7121\u52b9\u306b\u3057\u307e\u3059\u304c\u3001\u9045\u5ef6\u306e\u539f\u56e0\u304c\u5225\u306b\u3042\u308c\u3070\u89e3\u6c7a\u3057\u307e\u305b\u3093\u3002\u66f8\u8fbc\u307f\u6642\u523b\u30fb\u9001\u4fe1\u30fbACK\u3092\u5bfe\u5fdc\u3055\u305b\u3066\u78ba\u304b\u3081\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/section>\n<h2>\u5c0f\u3055\u306a\u8377\u7269\u306b\u3082\u3001\u30d8\u30c3\u30c0\u30fc\u306f\u4ed8\u3044\u3066\u304f\u308b<\/h2>\n<p>TCP\u306f\u3001\u30a2\u30d7\u30ea\u304c\u6e21\u3057\u305f\u30d0\u30a4\u30c8\u5217\u3092\u30bb\u30b0\u30e1\u30f3\u30c8\u3068\u3044\u3046\u5358\u4f4d\u306b\u5206\u3051\u3001IP\u30d1\u30b1\u30c3\u30c8\u306b\u8f09\u305b\u307e\u3059\u3002\u30c7\u30fc\u30bf\u304c\u77ed\u304f\u3066\u3082\u3001\u5b9b\u5148\u3084\u9806\u5e8f\u306a\u3069\u3092\u793a\u3059\u30d8\u30c3\u30c0\u30fc\u306f\u5fc5\u8981\u3067\u3059\u3002\u6b74\u53f2\u7684\u306aRFC 896\u306f\u3001\u30ad\u30fc\u30dc\u30fc\u30c9\u304b\u30891\u6587\u5b57\u305a\u3064\u9001\u308b\u5834\u5408\u306b\u30011\u30d0\u30a4\u30c8\u306e\u30c7\u30fc\u30bf\u306b40\u30d0\u30a4\u30c8\u306e\u30d8\u30c3\u30c0\u30fc\u304c\u4ed8\u304f\u4f8b\u3067\u554f\u984c\u3092\u8aac\u660e\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u5f53\u6642\u306e\u6761\u4ef6\u306b\u3088\u308b\u4f8b\u3067\u3001\u73fe\u5728\u306e\u3059\u3079\u3066\u306e\u30d1\u30b1\u30c3\u30c8\u304c40\u30d0\u30a4\u30c8\u306e\u30d8\u30c3\u30c0\u30fc\u306b\u306a\u308b\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u72ec\u81ea\u306e\u5358\u7d14\u8a08\u7b97\u3068\u3057\u3066\u3001\u30d8\u30c3\u30c0\u30fc\u309240\u30d0\u30a4\u30c8\u306b\u56fa\u5b9a\u3057\u3001100\u30d0\u30a4\u30c8\u305a\u306410\u56de\u5206\u306e\u30c7\u30fc\u30bf\u3092\u8003\u3048\u3066\u307f\u307e\u3059\u300210\u500b\u306b\u5206\u3051\u308b\u3068\u30c7\u30fc\u30bf1000\u30d0\u30a4\u30c8\u306b\u30d8\u30c3\u30c0\u30fc400\u30d0\u30a4\u30c8\u30011\u500b\u306b\u307e\u3068\u3081\u3089\u308c\u308c\u3070\u30d8\u30c3\u30c0\u30fc40\u30d0\u30a4\u30c8\u3067\u3059\u3002\u5408\u8a08\u306f1400\u5bfe1040\u30d0\u30a4\u30c8\u306b\u306a\u308a\u307e\u3059\u3002\u30ea\u30f3\u30af\u5c64\u306e\u60c5\u5831\u3084ACK\u306f\u9664\u3044\u305f\u6bd4\u8f03\u3067\u3059\u304c\u3001\u30c7\u30fc\u30bf\u306e\u91cf\u304c\u540c\u3058\u3067\u3082\u3001\u5c0f\u5206\u3051\u306e\u6570\u3067\u8ca0\u62c5\u304c\u5909\u308f\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u307e\u3068\u3081\u308b\u305f\u3081\u306b\u5f85\u3066\u3070\u5fdc\u7b54\u306f\u9045\u304f\u306a\u308a\u5f97\u307e\u3059\u3002\u52b9\u7387\u3068\u5f85\u3061\u6642\u9593\u306e\u3069\u3061\u3089\u3092\u91cd\u304f\u898b\u308b\u304b\u306f\u3001\u9001\u308b\u5185\u5bb9\u306b\u3088\u3063\u3066\u9055\u3044\u307e\u3059\u3002<\/p>\n<h2>\u5f85\u3064\u306e\u306f\u300c\u672a\u78ba\u8a8d\u300d\u3068\u300c\u77ed\u3044\u5f8c\u7d9a\u300d\u304c\u91cd\u306a\u3063\u305f\u3068\u304d<\/h2>\n<p>ACK\uff08\u78ba\u8a8d\u5fdc\u7b54\uff09\u306f\u3001\u76f8\u624b\u306eTCP\u304c\u3069\u3053\u307e\u3067\u30c7\u30fc\u30bf\u3092\u53d7\u3051\u53d6\u3063\u305f\u304b\u3092\u77e5\u3089\u305b\u307e\u3059\u3002\u76f8\u624b\u306e\u30a2\u30d7\u30ea\u304c\u305d\u306e\u5185\u5bb9\u3092\u51e6\u7406\u3057\u7d42\u3048\u305f\u3001\u3068\u3044\u3046\u901a\u77e5\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>RFC 9293\u306e\u57fa\u672c\u5f62\u3067\u306f\u3001\u672a\u78ba\u8a8d\u306e\u9001\u4fe1\u30c7\u30fc\u30bf\u304c\u3042\u308b\u9593\u3001\u5f8c\u7d9a\u30c7\u30fc\u30bf\u3092\u30d0\u30c3\u30d5\u30a1\u30fc\u3078\u305f\u3081\u307e\u3059\u3002\u5148\u884c\u30c7\u30fc\u30bf\u304c\u78ba\u8a8d\u3055\u308c\u308b\u304b\u3001<strong>\u6709\u52b9MSS\uff08\u5b9f\u969b\u306b\u9001\u308c\u308b\u30bb\u30b0\u30e1\u30f3\u30c8\u306e\u6700\u5927\u30c7\u30fc\u30bf\u9577\uff09<\/strong>\u5206\u3092\u9001\u308c\u308b\u3088\u3046\u306b\u306a\u308b\u3068\u3001Nagle\u306b\u3088\u308b\u5f85\u3061\u304c\u5916\u308c\u307e\u3059\u3002\u6700\u521d\u304b\u3089\u672a\u78ba\u8a8d\u30c7\u30fc\u30bf\u304c\u306a\u3051\u308c\u3070\u3001\u3053\u306e\u898f\u5247\u306f\u6700\u521d\u306e\u77ed\u3044\u9001\u4fe1\u3092\u5f85\u305f\u305b\u308b\u7406\u7531\u306b\u306a\u308a\u307e\u305b\u3093\u3002PSH\u30d3\u30c3\u30c8\u3092\u4ed8\u3051\u308b\u3053\u3068\u3082\u3001\u3053\u306e\u5f85\u3061\u3092\u5fc5\u305a\u89e3\u9664\u3059\u308b\u65b9\u6cd5\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u6b21\u306e\u56f3\u3067\u306f\u6709\u52b9MSS\u3092\u8aac\u660e\u7528\u306b1000\u30d0\u30a4\u30c8\u3068\u3057\u3001\u76f8\u624b\u306e\u53d7\u4fe1\u7a93\u3068\u8f3b\u8f33\u5236\u5fa1\u306b\u306f\u4f59\u88d5\u304c\u3042\u308b\u3068\u4eee\u5b9a\u3057\u307e\u3059\u3002\u73fe\u5b9f\u306eMSS\u306f\u7d4c\u8def\u3084\u30d8\u30c3\u30c0\u30fc\u306a\u3069\u306b\u5de6\u53f3\u3055\u308c\u30011000\u30d0\u30a4\u30c8\u304c\u63a8\u5968\u5024\u3068\u3044\u3046\u610f\u5473\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-tcp-nagle-small-writes-20261023-figure-dd0d82e85bbb.png\" alt=\"\u6709\u52b9MSS\u30921000\u30d0\u30a4\u30c8\u3068\u3057\u305f\u4f8b\u3002\u672a\u78ba\u8a8d100\u30d0\u30a4\u30c8\u3068\u5f85\u6a5f100\u30d0\u30a4\u30c8\u306a\u3089\u5f85\u3064\u3002\u5168\u78ba\u8a8dACK\u5f8c\u306f100\u30d0\u30a4\u30c8\u3001\u672a\u78ba\u8a8d\u3067\u3082\u5f85\u6a5f1000\u30d0\u30a4\u30c8\u306a\u3089\u6e80\u91cf\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u3092\u9001\u4fe1\u3067\u304d\u308b\u3002\" style=\"width:100%;height:auto\"\/><figcaption>\u57fa\u672c\u5f62\u306e\u6761\u4ef6\u3092\u6bd4\u3079\u308b\u72ec\u81ea\u306e\u4f8b\u3002\u4ed6\u306e\u9001\u4fe1\u5236\u9650\u306f\u6e80\u305f\u3055\u308c\u3066\u3044\u308b\u3068\u4eee\u5b9a\u3057\u3001\u5b9f\u88c5\u5168\u4f53\u3092\u518d\u73fe\u3057\u305f\u56f3\u3067\u306f\u306a\u3044\u3002<\/figcaption><\/figure>\n<p>\u6700\u521d\u306e100\u30d0\u30a4\u30c8\u304c\u672a\u78ba\u8a8d\u3067\u3001\u6b21\u306e100\u30d0\u30a4\u30c8\u3060\u3051\u304c\u5f85\u6a5f\u3057\u3066\u3044\u308c\u3070\u3001\u5f8c\u7d9a\u306f\u77ed\u3044\u307e\u307e\u306a\u306e\u3067\u5f85\u3061\u307e\u3059\u3002\u6700\u521d\u306e100\u30d0\u30a4\u30c8\u3059\u3079\u3066\u3092\u78ba\u8a8d\u3059\u308bACK\u304c\u6765\u308c\u3070\u3001\u5f85\u6a5f\u3057\u3066\u3044\u305f100\u30d0\u30a4\u30c8\u306fNagle\u306e\u6761\u4ef6\u3092\u629c\u3051\u307e\u3059\u3002\u5225\u306e\u5c55\u958b\u3068\u3057\u3066\u3001ACK\u3088\u308a\u5148\u306b\u3042\u3068900\u30d0\u30a4\u30c8\u304c\u52a0\u308f\u308c\u3070\u3001\u5f85\u6a5f\u5206\u306f1000\u30d0\u30a4\u30c8\u3068\u306a\u308a\u3001\u6e80\u91cf\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u3092\u9001\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u4e8c\u3064\u306f\u5225\u306e\u89e3\u9664\u7d4c\u8def\u3067\u3059\u3002\u300cACK\u304c\u6765\u308b\u307e\u3067\u7d76\u5bfe\u306b\u4f55\u3082\u9001\u3089\u306a\u3044\u300d\u3068\u899a\u3048\u308b\u3068\u3001\u6e80\u91cf\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u3092\u9001\u308b\u5834\u5408\u3092\u898b\u843d\u3068\u3057\u307e\u3059\u3002<\/p>\n<h2>\u9045\u5ef6ACK\u3068\u91cd\u306a\u308b\u3068\u3001\u5f85\u3061\u6642\u9593\u304c\u76ee\u7acb\u3064<\/h2>\n<p>\u53d7\u4fe1\u5074\u3082\u3001\u6bce\u56de\u3059\u3050ACK\u3092\u8fd4\u3059\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u78ba\u8a8d\u5fdc\u7b54\u3092\u307e\u3068\u3081\u308b<strong>\u9045\u5ef6ACK<\/strong>\u306b\u3088\u3063\u3066\u3001ACK\u306e\u6570\u3092\u6e1b\u3089\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u9001\u4fe1\u5074\u306f\u5f8c\u7d9a\u306e\u77ed\u3044\u30c7\u30fc\u30bf\u3092\u305f\u3081\u3001\u53d7\u4fe1\u5074\u306f\u78ba\u8a8d\u5fdc\u7b54\u3092\u5c11\u3057\u5f85\u3064\u3002\u3053\u306e\u7d44\u5408\u305b\u3067\u3001\u30a2\u30d7\u30ea\u304b\u3089\u306f\u77ed\u3044\u9001\u4fe1\u306e\u9593\u306b\u4e0d\u81ea\u7136\u306a\u9593\u304c\u3042\u308b\u3088\u3046\u306b\u898b\u3048\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u8981\u6c42\u3092\u524d\u534a\u3068\u5f8c\u534a\u306b\u5206\u3051\u3066\u66f8\u304d\u8fbc\u307f\u3001\u76f8\u624b\u30a2\u30d7\u30ea\u306f\u5f8c\u534a\u307e\u3067\u53d7\u3051\u53d6\u3063\u3066\u304b\u3089\u5fdc\u7b54\u3059\u308b\u8a2d\u8a08\u3092\u8003\u3048\u307e\u3059\u3002\u524d\u534a\u304c\u672a\u78ba\u8a8d\u306e\u9593\u306b\u5f8c\u534a\u3060\u3051\u304c\u5c0f\u3055\u304f\u6b8b\u308b\u3068\u3001\u76f8\u624b\u30a2\u30d7\u30ea\u304c\u5fdc\u7b54\u3092\u4f5c\u308c\u308b\u6642\u70b9\u307e\u3067\u9045\u308c\u304b\u306d\u307e\u305b\u3093\u3002\u3060\u304b\u3089\u3068\u3044\u3063\u3066\u3001\u3059\u3079\u3066\u306e\u9045\u5ef6\u304cNagle\u3068\u9045\u5ef6ACK\u306e\u7d44\u5408\u305b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002RFC\u306b\u3082\u5b9f\u88c5\u4e0a\u306e\u5909\u5f62\u304c\u8a18\u3055\u308c\u3066\u304a\u308a\u3001\u5f85\u3061\u6642\u9593\u3092\u4e00\u5f8b\u306b200\u30df\u30ea\u79d2\u306a\u3069\u3068\u6c7a\u3081\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<h2>TCP_NODELAY\u3067\u5909\u308f\u308b\u3053\u3068\u3001\u5909\u308f\u3089\u306a\u3044\u3053\u3068<\/h2>\n<p>Linux\u306etcp(7)\u30de\u30cb\u30e5\u30a2\u30eb\u3067\u306f\u3001TCP_NODELAY\u3092\u6709\u52b9\u306b\u3059\u308b\u3068Nagle\u3092\u7121\u52b9\u306b\u3057\u3001\u5c11\u91cf\u3067\u3082\u53ef\u80fd\u306a\u9650\u308a\u65e9\u304f\u9001\u308b\u3068\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u77ed\u3044\u66f4\u65b0\u306e\u5373\u6642\u6027\u304c\u91cd\u8981\u306a\u901a\u4fe1\u3067\u306f\u3001\u691c\u8a0e\u3059\u308b\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3060\u3057TCP_CORK\u306a\u3069\u4ed6\u306e\u8a2d\u5b9a\u3068\u306e\u95a2\u4fc2\u304c\u3042\u308a\u3001\u8a2d\u5b9a\u540d\u3060\u3051\u3067\u6700\u7d42\u6319\u52d5\u3092\u6c7a\u3081\u3064\u3051\u306a\u3044\u3053\u3068\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>TCP_NODELAY\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6df7\u96d1\u3001\u76f8\u624b\u306e\u53d7\u4fe1\u30d0\u30c3\u30d5\u30a1\u30fc\u4e0d\u8db3\u3001\u30a2\u30d7\u30ea\u5185\u90e8\u306e\u30d0\u30c3\u30d5\u30a1\u30ea\u30f3\u30b0\u3092\u306a\u304f\u3059\u8a2d\u5b9a\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u30021\u56de\u306ewrite\u304c\u5fc5\u305a1\u30d1\u30b1\u30c3\u30c8\u306b\u306a\u308b\u3053\u3068\u3082\u3001\u76f8\u624b\u306e1\u56de\u306eread\u304c\u540c\u3058\u5883\u754c\u306b\u306a\u308b\u3053\u3068\u3082\u4fdd\u8a3c\u3057\u307e\u305b\u3093\u3002TCP\u304c\u904b\u3076\u306e\u306f\u9806\u5e8f\u4ed8\u304d\u306e\u30d0\u30a4\u30c8\u5217\u3067\u3042\u308a\u3001\u30a2\u30d7\u30ea\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u5883\u754c\u306f\u30a2\u30d7\u30ea\u5074\u3067\u5b9a\u7fa9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>\u6e2c\u308b\u3068\u304d\u306f\u4e09\u3064\u306e\u6642\u523b\u3092\u305d\u308d\u3048\u308b<\/h2>\n<p>\u539f\u56e0\u3092\u7d5e\u308b\u306b\u306f\u3001\u2460\u30a2\u30d7\u30ea\u304c\u66f8\u304d\u8fbc\u3093\u3060\u6642\u523b\u3068\u30b5\u30a4\u30ba\u3001\u2461\u5b9f\u969b\u306b\u30c7\u30fc\u30bf\u304c\u51fa\u305f\u6642\u523b\u3001\u2462\u5148\u884c\u30c7\u30fc\u30bf\u3078\u306eACK\u304c\u623b\u3063\u305f\u6642\u523b\u3092\u6bd4\u3079\u307e\u3059\u3002\u5c0f\u3055\u3044\u5f8c\u7d9a\u304cACK\u76f4\u5f8c\u306b\u51fa\u308b\u306a\u3089\u3001Nagle\u304c\u95a2\u4fc2\u3059\u308b\u3068\u3044\u3046\u4eee\u8aac\u3092\u7acb\u3066\u3089\u308c\u307e\u3059\u3002\u305f\u3060\u3057\u76f8\u95a2\u3060\u3051\u3067\u65ad\u5b9a\u305b\u305a\u3001\u540c\u3058\u8ca0\u8377\u3068\u66f8\u8fbc\u307f\u5358\u4f4d\u3067\u8a2d\u5b9a\u3092\u5909\u3048\u3066\u6bd4\u8f03\u3057\u307e\u3059\u3002<\/p>\n<p>\u8a66\u9a13\u3067\u306f\u5e73\u5747\u3060\u3051\u3067\u306a\u304f\u3001\u77ed\u3044\u8981\u6c42\u304c\u9045\u308c\u305f\u56de\u6570\u3084\u5fdc\u7b54\u6642\u9593\u306e\u5206\u5e03\u3001\u30d1\u30b1\u30c3\u30c8\u6570\u3082\u898b\u307e\u3059\u3002\u5f85\u3061\u6642\u9593\u304c\u6e1b\u3063\u3066\u3082\u30d1\u30b1\u30c3\u30c8\u6570\u304c\u5927\u304d\u304f\u5897\u3048\u305f\u306a\u3089\u3001\u52b9\u7387\u3068\u306e\u4ea4\u63db\u6761\u4ef6\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u307e\u3068\u3081\u3066\u3088\u3044\u30c7\u30fc\u30bf\u306f\u30a2\u30d7\u30ea\u5074\u3067\u9069\u5207\u306b\u307e\u3068\u3081\u3001\u6025\u3050\u5c0f\u3055\u3044\u30c7\u30fc\u30bf\u306f\u5f85\u305f\u305b\u306a\u3044\u8a2d\u8a08\u3092\u691c\u8a0e\u3059\u308b\u3001\u3068\u3044\u3046\u5224\u65ad\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u3053\u3067\u306e\u6570\u5024\u3068\u56f3\u306f\u3001\u4ed5\u69d8\u306e\u6761\u4ef6\u3092\u5207\u308a\u5206\u3051\u308b\u305f\u3081\u306e\u30e2\u30c7\u30eb\u3067\u3059\u3002\u5b9f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6e2c\u5b9a\u7d50\u679c\u3084\u3001\u7279\u5b9aOS\u3067\u5fc5\u305a\u540c\u3058\u9806\u756a\u306b\u306a\u308b\u3068\u3044\u3046\u4fdd\u8a3c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h2>\u51fa\u5178<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.rfc-editor.org\/rfc\/rfc9293.html\">RFC 9293: Transmission Control Protocol<\/a>\uff082022\u5e748\u6708\u3001STD 7\uff09\u30023.7.4\u7bc0\u30013.8.6.3\u7bc0\u3001\u4ed8\u9332A.3\u3002<\/li>\n<li><a href=\"https:\/\/www.rfc-editor.org\/rfc\/rfc896.html\">RFC 896: Congestion Control in IP\/TCP Internetworks<\/a>\uff081984\u5e741\u6708\uff09\u3002\u5c0f\u3055\u3044\u30d1\u30b1\u30c3\u30c8\u554f\u984c\u306e\u6b74\u53f2\u7684\u8aac\u660e\u3002\u73fe\u884c\u6761\u4ef6\u306fRFC 9293\u3092\u53c2\u7167\u3002<\/li>\n<li><a href=\"https:\/\/man7.org\/linux\/man-pages\/man7\/tcp.7.html\">Linux man-pages: tcp(7)<\/a>\u3002TCP_NODELAY\u3001TCP_CORK\u3001\u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u6027\u8cea\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u77ed\u3044\u30c7\u30fc\u30bf\u3092\u30a2\u30d7\u30ea\u304b\u3089\u7d9a\u3051\u3066\u6e21\u3057\u305f\u306e\u306b\u3001\u4e8c\u3064\u76ee\u304c\u3059\u3050\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u51fa\u306a\u3044\u3002TCP\u3067\u306f\u3001\u305d\u306e\u7406\u7531\u306e\u4e00\u3064\u306bNagle\uff08\u30cd\u30fc\u30b0\u30eb\uff09\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u304c\u3042\u308a\u307e\u3059\u3002\u5c0f\u3055\u3044\u30d1\u30b1\u30c3\u30c8\u306e\u5897\u3048\u3059\u304e\u3092\u9632\u3050\u305f\u3081\u3001\u307e\u3060\u78ba\u8a8d\u3055\u308c\u3066\u3044\u306a\u3044\u9001\u4fe1\u304c\u3042\u308b\u9593\u3001\u5f8c [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1428,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":false,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[29],"tags":[283],"class_list":["post-1430","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-communications-networking","tag-tcp"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/quantumsea.net\/wp-content\/uploads\/2026\/10\/qs-tcp-nagle-small-writes-20261023-featured-278b0f0113a6.png","_links":{"self":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1430","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1430"}],"version-history":[{"count":1,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1430\/revisions"}],"predecessor-version":[{"id":1431,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/posts\/1430\/revisions\/1431"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=\/wp\/v2\/media\/1428"}],"wp:attachment":[{"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1430"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1430"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/quantumsea.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1430"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}