{"id":18737,"date":"2026-04-05T11:48:15","date_gmt":"2026-04-05T09:48:15","guid":{"rendered":"https:\/\/webhosting.de\/swap-usage-server-performance-hosting-optimus\/"},"modified":"2026-04-05T11:48:15","modified_gmt":"2026-04-05T09:48:15","slug":"%e3%82%b9%e3%83%af%e3%83%83%e3%83%97%e4%bd%bf%e7%94%a8%e9%87%8f-%e3%82%b5%e3%83%bc%e3%83%90%e3%83%bc%e3%83%91%e3%83%95%e3%82%a9%e3%83%bc%e3%83%9e%e3%83%b3%e3%82%b9-%e3%82%aa%e3%83%97%e3%83%86%e3%82%a3","status":"publish","type":"post","link":"https:\/\/webhosting.de\/ja\/swap-usage-server-performance-hosting-optimus\/","title":{"rendered":"\u30b9\u30ef\u30c3\u30d7\u4f7f\u7528\u30b5\u30fc\u30d0\u30fc\uff1a\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316"},"content":{"rendered":"<p>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306e\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u304c\u8ca0\u8377\u3067\u30b9\u30c8\u30fc\u30eb\u3057\u306a\u3044\u3088\u3046\u306b\u3001\u30b9\u30ef\u30c3\u30d7\u4f7f\u7528\u30b5\u30fc\u30d0\u30fc\u3092\u76ee\u6a19\u901a\u308a\u306b\u5236\u5fa1\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3059\u308b\u3002 <strong>\u6f14\u6280<\/strong> \u30c8\u30ea\u30ac\u30fc\u306e\u554f\u984c\u3002\u305d\u306e\u539f\u56e0\u3001\u91cd\u8981\u306a\u6570\u5024\u3001\u30b9\u30ef\u30c3\u30d7\u30cd\u30b9\u8a2d\u5b9a\u3001\u63a8\u5968\u30b5\u30a4\u30ba\u3001\u305d\u3057\u3066\u5b9f\u8df5\u7684\u306a\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u306e\u624b\u9806\u306b\u3064\u3044\u3066\u8aac\u660e\u3059\u308b\u3002 <strong>\u30e1\u30e2\u30ea\u30fc<\/strong> \u30b9\u30ef\u30c3\u30d4\u30f3\u30b0\u30fb\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3002.<\/p>\n\n<h2>\u4e2d\u5fc3\u70b9<\/h2>\n\n<ul>\n  <li><strong>\u30b9\u30ef\u30c3\u30d7\u30cd\u30b9<\/strong> \u524a\u6e1b\uff1a\u7a4d\u6975\u7684\u306a\u30a2\u30a6\u30c8\u30bd\u30fc\u30b7\u30f3\u30b0\u3092\u907f\u3051\u308b<\/li>\n  <li><strong>\u30b5\u30a4\u30ba<\/strong> \u30c1\u30a7\u30c3\u30af\u3059\u308b\u30b9\u30ef\u30c3\u30d7\u3092RAM\u3068\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u306b\u5408\u308f\u305b\u308b<\/li>\n  <li><strong>\u5165\u51fa\u529b<\/strong> \u5b88\u308b\uff1aSSD\u306e\u914d\u7f6e\u3001Zswap\/ZRAM\u306e\u610f\u8b58\u7684\u306a\u4f7f\u7528<\/li>\n  <li><strong>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/strong> \u3092\u78ba\u7acb\u3059\u308b\uff1a\u30da\u30fc\u30b8\u30d5\u30a9\u30eb\u30c8\u3001kswapd\u3001\u30ec\u30a4\u30c6\u30f3\u30b7<\/li>\n  <li><strong>\u30ef\u30fc\u30af\u30ed\u30fc\u30c9<\/strong> adapt\uff1a\u30ad\u30e3\u30c3\u30b7\u30e5\u3068DB\u30d0\u30c3\u30d5\u30a1\u306e\u30d0\u30e9\u30f3\u30b9<\/li>\n<\/ul>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/04\/serverraum-optimierung-8473.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30b9\u30ef\u30c3\u30d7\u306e\u672c\u5f53\u306e\u52b9\u679c - \u30b9\u30ef\u30c3\u30d7\u304c\u3042\u306a\u305f\u306e\u30b9\u30d4\u30fc\u30c9\u3092\u920d\u3089\u305b\u308b\u3068\u304d<\/h2>\n\n<p>\u30b9\u30ef\u30c3\u30d7\u306f\u3001\u3081\u3063\u305f\u306b\u4f7f\u308f\u306a\u3044\u30da\u30fc\u30b8\u3092SSD\u3084HDD\u306b\u79fb\u52d5\u3055\u305b\u308b\u3053\u3068\u3067\u7269\u7406RAM\u3092\u62e1\u5f35\u3057\u3001OOM\u30ad\u30e9\u30fc\u304b\u3089\u30d7\u30ed\u30bb\u30b9\u3092\u4fdd\u8b77\u3059\u308b\u3002 <strong>\u30d0\u30c3\u30d5\u30a1<\/strong> \u4e0e\u3048\u308b\u3002Linux\u306f\u3001\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30da\u30fc\u30b8\u306b\u3088\u308a\u591a\u304f\u306e\u30b9\u30da\u30fc\u30b9\u3092\u4e0e\u3048\u3001\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u3001\u81e8\u6a5f\u5fdc\u5909\u306b\u30aa\u30d5\u30ed\u30fc\u30c9\u3092\u884c\u3046\u3002 <strong>\u5165\u51fa\u529b<\/strong>-\u30ed\u30fc\u30c9\u3002\u30b7\u30b9\u30c6\u30e0\u304cRAM\u3068\u30b9\u30ef\u30c3\u30d7\u3092\u983b\u7e41\u306b\u5207\u308a\u66ff\u3048\u308b\u3068\u3001\u3059\u3050\u306b\u30b9\u30e9\u30c3\u30b7\u30f3\u30b0\u306e\u30ea\u30b9\u30af\u304c\u767a\u751f\u3057\u3001\u305d\u306e\u7d50\u679c\u30ec\u30a4\u30c6\u30f3\u30b7\u304c\u9855\u8457\u306b\u306a\u308a\u307e\u3059\u3002\u7279\u306bPHP\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3001Node.js\u3092\u4f7f\u3063\u305f\u30d8\u30d3\u30fc\u306a\u30a6\u30a7\u30d6\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3067\u306f\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3001PHP\u30ef\u30fc\u30ab\u30fc\u3001DB\u30d0\u30c3\u30d5\u30a1\u304c\u30e1\u30e2\u30ea\u3092\u596a\u3044\u5408\u3046\u3002\u305d\u306e\u305f\u3081\u3001\u79c1\u306f\u30bb\u30fc\u30d5\u30c6\u30a3\u30cd\u30c3\u30c8\u3068\u3057\u3066\u30b9\u30ef\u30c3\u30d7\u3092\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u901a\u5e38\u306e\u904b\u7528\u3067\u306f\u30b9\u30ef\u30c3\u30d7\u306e\u4f7f\u7528\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n<h2>\u9ad8\u30b9\u30ef\u30c3\u30d7\u4f7f\u7528\u306e\u5146\u5019\u3092\u8a8d\u8b58\u3059\u308b<\/h2>\n\n<p>\u307e\u305a\u30c1\u30a7\u30c3\u30af\u3059\u308b <strong>\u7121\u6599<\/strong> -h\u3068 <strong>vmstat<\/strong>, \u3068\u3044\u3046\u306e\u3082\u3001\u30b9\u30ef\u30c3\u30d7\u30a4\u30f3\/\u30b9\u30ef\u30c3\u30d7\u30a2\u30a6\u30c8\u7387\u304c\u9ad8\u3044\u5834\u5408\u3001\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3059\u304b\u3089\u3067\u3042\u308b\u3002\u30b9\u30ef\u30c3\u30d7\u30fb\u30a4\u30f3\/\u30b9\u30ef\u30c3\u30d7\u30fb\u30a2\u30a6\u30c8\u7387\u304c\u9ad8\u3051\u308c\u3070\u3001\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3059\u304b\u3089\u3067\u3042\u308b\u3002\u3057\u304b\u3057\u3001\u30da\u30fc\u30b8\u30d5\u30a9\u30fc\u30eb\u30c8\u30ec\u30fc\u30c8\u3068IO\u30ad\u30e5\u30fc\u304c\u5897\u52a0\u3059\u308b\u3068\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30ec\u30a4\u30c6\u30f3\u30b7\u304c\u5897\u52a0\u3057\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u9045\u304f\u306a\u308b\u3002\u30ed\u30b0\u3092\u898b\u308b\u3068\u3001\u30b9\u30ef\u30c3\u30d7\u304c\u30d4\u30fc\u30af\u306b\u9054\u3059\u308b\u3068\u540c\u6642\u306b\u3001\u30d3\u30b8\u30fc\u72b6\u614b\u306e\u30ef\u30fc\u30ab\u30fc\u3084\u9045\u3044\u30af\u30a8\u30ea\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u3002\u4eee\u60f3\u30e1\u30e2\u30ea\u306e\u57fa\u790e\u77e5\u8b58\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u30b3\u30f3\u30d1\u30af\u30c8\u306a\u5165\u9580\u66f8\u3092\u53c2\u7167\u3055\u308c\u305f\u3044\u3002 <a href=\"https:\/\/webhosting.de\/ja\/%e4%bb%ae%e6%83%b3%e3%83%a1%e3%83%a2%e3%83%aa-%e3%82%b5%e3%83%bc%e3%83%90%e3%83%bc%e7%ae%a1%e7%90%86-%e3%83%9b%e3%82%b9%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0-%e3%82%b9%e3%83%88%e3%83%ac%e3%83%bc\/\">\u4eee\u60f3\u30e1\u30e2\u30ea<\/a>, \u3053\u308c\u306f\u30ab\u30c6\u30b4\u30ea\u30fc\u5206\u3051\u306e\u52a9\u3051\u306b\u306a\u308b\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/04\/serverperformance1234.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30e1\u30e2\u30ea\u30fb\u30b9\u30ef\u30c3\u30d7\u30fb\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306e\u5229\u70b9\u3068\u30ea\u30b9\u30af<\/h2>\n\n<p>\u79c1\u306f\u30b9\u30ef\u30c3\u30d7\u3092\u4f7f\u3063\u3066RAM\u306e\u30d4\u30fc\u30af\u3092\u7de9\u548c\u3057\u3001\u91cd\u8981\u306a\u30b5\u30fc\u30d3\u30b9\u3092\u7a3c\u50cd\u3055\u305b\u3066\u3044\u308b\u3002 <strong>\u5931\u6557<\/strong> \u304c\u56de\u907f\u3055\u308c\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u5c0f\u898f\u6a21\u306eVPS\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3067\u3042\u308c\u3070\u5c11\u306a\u3044RAM\u3067\u7ba1\u7406\u3067\u304d\u3001IO\u8ca0\u8377\u304c\u5236\u9650\u5185\u306b\u53ce\u307e\u308b\u9650\u308a\u3001\u30e6\u30fc\u30ed\u306e\u30b3\u30b9\u30c8\u3092\u524a\u6e1b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u30b9\u30ef\u30c3\u30d7\u30a2\u30a6\u30c8\u304c\u591a\u3059\u304e\u308b\u3068\u3001SSD\/NVMe\u306f\u660e\u3089\u304b\u306bRAM\u306b\u9045\u308c\u3092\u3068\u308a\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u505c\u6b62\u3057\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u5727\u7e2e\uff08ZRAM\uff09\u306b\u306fCPU\u6642\u9593\u304c\u304b\u304b\u308b\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30b9\u30ef\u30c3\u30d7\u306f\u79c1\u306b\u3068\u3063\u3066\u4ee3\u66ff\u3067\u306f\u306a\u304f\u3001\u79c1\u304c\u7a4d\u6975\u7684\u306b\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3059\u308b\u30bb\u30fc\u30d5\u30c6\u30a3\u30cd\u30c3\u30c8\u306a\u306e\u3060\u3002.<\/p>\n\n<h2>\u30b9\u30ef\u30c3\u30d7\u30cd\u30b9\uff1a\u6700\u3082\u91cd\u8981\u306a\u8abf\u6574\u30cd\u30b8<\/h2>\n\n<p>\u30ab\u30fc\u30cd\u30eb\u5909\u6570 <strong>vm.swappiness<\/strong> (0-100\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u901a\u5e3860)\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u304c\u3069\u306e\u7a0b\u5ea6\u65e9\u304f\u30da\u30fc\u30b8\u3092\u30aa\u30d5\u30ed\u30fc\u30c9\u3059\u308b\u304b\u3092\u5236\u5fa1\u3057\u307e\u3059\u3002\u4e00\u6642\u7684\u306b <code>sysctl vm.swappiness=10<\/code>, \u6c38\u4e45\u306b\u66f8\u304f <code>vm.swappiness=10<\/code> \u306b\u65bc\u3044\u3066 <code>\/etc\/sysctl.conf<\/code>. .SSD\u30db\u30b9\u30c8\u3067\u306f\u3001\u3053\u306e\u7d50\u679c\u30b9\u30ef\u30c3\u30d7\u304c\u6e1b\u308a\u3001\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\u7528\u306e\u30b9\u30da\u30fc\u30b9\u304c\u5897\u3048\u308b\u3002\u305d\u306e\u5f8c\u3001IO\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u3001\u4f5c\u696d\u30bb\u30c3\u30c8\u3092\u30e2\u30cb\u30bf\u30fc\u3057\u3066\u52b9\u679c\u3092\u78ba\u8a8d\u3059\u308b\u3002\u4e3b\u8981\u306a\u6570\u5024\u304c\u5b89\u5b9a\u3057\u305f\u307e\u307e\u3067\u3042\u308c\u3070\u3001\u8a2d\u5b9a\u3092\u7dad\u6301\u3057\u3001\u5f8c\u306e\u76e3\u67fb\u306e\u305f\u3081\u306b\u5909\u66f4\u3092\u6587\u66f8\u5316\u3059\u308b\u3002.<\/p>\n\n<h2>\u4e00\u822c\u7684\u306a\u30b5\u30fc\u30d0\u30fc\u306b\u6700\u9069\u306a\u30b9\u30ef\u30c3\u30d7\u30b5\u30a4\u30ba<\/h2>\n\n<p>\u5927\u304d\u3059\u304e\u308b\u30d5\u30a1\u30a4\u30eb\u3092\u898b\u3064\u3051\u308b\u3068\u3001RAM\u3084\u4f5c\u696d\u91cf\u3001\u30cf\u30a4\u30d0\u30cd\u30fc\u30b7\u30e7\u30f3\u306b\u5408\u308f\u305b\u3066\u30b9\u30ef\u30c3\u30d7\u30b5\u30a4\u30ba\u3092\u8abf\u6574\u3057\u3066\u3044\u308b\u3002 <strong>\u30e1\u30e2\u30ea<\/strong> \u3068\u5c0f\u3055\u3059\u304e\u308b\u30d5\u30a1\u30a4\u30eb\u306f\u30d0\u30c3\u30d5\u30a1\u3092\u6e1b\u3089\u3057\u307e\u3059\u3002\u30cf\u30a4\u30d0\u30cd\u30fc\u30b7\u30e7\u30f3\u306e\u306a\u3044\u4e00\u822c\u7684\u306a\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30b5\u30fc\u30d0\u30fc\u3067\u306f\u3001\u79c1\u306f\u9069\u5ea6\u306a\u5024\u3092\u8a08\u753b\u3057\u3001\u5de8\u5927\u306a\u30b9\u30ef\u30c3\u30d7\u30dc\u30ea\u30e5\u30fc\u30e0\u3088\u308a\u3082\u3088\u308a\u591a\u304f\u306eRAM\u3092\u512a\u5148\u3057\u307e\u3059\u3002\u4e4f\u3057\u3044VPS\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3067\u306f\u3001\u672c\u683c\u7684\u306a\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u304c\u53ef\u80fd\u306b\u306a\u308b\u307e\u3067\u30011.5\uff5e2\u500d\u306eRAM\u304c\u7406\u306b\u304b\u306a\u3063\u3066\u3044\u307e\u3059\u3002RAM\u306b\u4f59\u88d5\u304c\u3042\u308b\u5834\u5408\u3001\u30af\u30e9\u30c3\u30b7\u30e5\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u30b9\u30ef\u30c3\u30d7\u9818\u57df\u3092\u5c0f\u3055\u304f\u3057\u3066\u3082\u5229\u7528\u3067\u304d\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u79c1\u306f\u4ee5\u4e0b\u306e\u8868\u3092\u51fa\u767a\u70b9\u3068\u3057\u3066\u3001\u5b9f\u6e2c\u5024\u306b\u5fdc\u3058\u3066\u8abf\u6574\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n<table>\n  <thead>\n    <tr>\n      <th>RAM\u30b5\u30a4\u30ba<\/th>\n      <th>\u30cf\u30a4\u30d0\u30cd\u30fc\u30b7\u30e7\u30f3\u306a\u3057\u3067\u30b9\u30ef\u30c3\u30d7<\/th>\n      <th>\u51ac\u7720\u3068\u4ea4\u63db<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td>\u2264 2 GB<\/td>\n      <td>2x RAM<\/td>\n      <td>3x RAM<\/td>\n    <\/tr>\n    <tr>\n      <td>2-8 GB<\/td>\n      <td>= RAM<\/td>\n      <td>2x RAM<\/td>\n    <\/tr>\n    <tr>\n      <td>8-64 GB<\/td>\n      <td>4\uff5e8 GB<\/td>\n      <td>1.5\u500d RAM<\/td>\n    <\/tr>\n    <tr>\n      <td>&gt; 64 GB<\/td>\n      <td>4 GB<\/td>\n      <td>\u63a8\u5968\u3057\u306a\u3044<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/04\/server-swap-usage-optimierung-9342.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30b9\u30ef\u30c3\u30d7\u306e\u914d\u7f6e\u3068\u9ad8\u5ea6\u306a\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n<p>\u79c1\u306f\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u3088\u308a\u3082\u30b9\u30ef\u30c3\u30d7\u30d5\u30a1\u30a4\u30eb\u306e\u65b9\u304c\u597d\u304d\u3060\u3002\u306a\u305c\u306a\u3089\u3001\u30b5\u30a4\u30ba\u3092\u52d5\u7684\u306b\u8abf\u6574\u3067\u304d\u3001\u3088\u308a\u901f\u304f\u5909\u66f4\u3067\u304d\u308b\u304b\u3089\u3060\u3002 <strong>\u751f\u304d\u308b<\/strong> \u30b4\u30fc\u3002\u30b9\u30ef\u30c3\u30d7\u9818\u57df\u304c\u5225\u306eSSD\u30b9\u30c8\u30ec\u30fc\u30b8\u4e0a\u306b\u3042\u308c\u3070\u3001OS\u3068\u306eIO\u306e\u7af6\u5408\u304c\u5c11\u306a\u304f\u306a\u308b\u3002\u975e\u5e38\u306b\u5c0f\u3055\u306aVM\u306e\u5834\u5408\u306f\u3001IO\u3092\u6e1b\u3089\u3059\u30c6\u30b9\u30c8\u3068\u3057\u3066Zswap\u3084ZRAM\u3092\u4f7f\u3046\u304c\u3001CPU\u306e\u4f7f\u7528\u7387\u306b\u306f\u6ce8\u610f\u3059\u308b\u3002\u30aa\u30fc\u30d0\u30fc\u30b3\u30df\u30c3\u30c8\u3092\u304d\u308c\u3044\u306b\u5236\u9650\u3057\u3001\u3069\u306e\u30d7\u30ed\u30bb\u30b9\u3082\u30de\u30b7\u30f3\u3092\u30b9\u30e9\u30c3\u30b7\u30f3\u30b0\u306b\u8ffd\u3044\u8fbc\u307e\u306a\u3044\u3088\u3046\u306b\u30b5\u30fc\u30d3\u30b9\u306e\u5236\u9650\u3092\u8a2d\u5b9a\u3059\u308b\u3002\u6700\u7d42\u7684\u306b\u91cd\u8981\u306a\u306e\u306f\u3001\u6e2c\u5b9a\u53ef\u80fd\u306a\u52b9\u679c\u3067\u3059\u3002\u5f85\u3061\u6642\u9593\u304c\u6e1b\u308a\u3001IO\u304c\u9759\u304b\u306b\u306a\u308a\u3001\u5fdc\u7b54\u6642\u9593\u304c\u4e00\u5b9a\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n<h2>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\uff1a\u3069\u306e\u6570\u5b57\u304c\u672c\u5f53\u306b\u91cd\u8981\u304b<\/h2>\n\n<p>\u79c1\u306f\u3001RAM\u306e\u4f7f\u7528\u7387\u3001\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\u3001\u30b9\u30ef\u30c3\u30d7\u30a4\u30f3\u30fb\u30a2\u30a6\u30c8\u3001\u4ee5\u4e0b\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3092\u6e2c\u5b9a\u3057\u3066\u3044\u308b\u3002 <strong>kswapd<\/strong> \u3068IO\u30ad\u30e5\u30fc\u306f\u3001\u3053\u308c\u3089\u306e\u5024\u304c\u65e9\u3044\u6bb5\u968e\u3067\u79c1\u306b\u30b7\u30b0\u30ca\u30eb\u3092\u9001\u308b\u304b\u3089\u3060\u3002\u30b9\u30ef\u30c3\u30d7\u306e\u52d5\u304d\u304c\u5897\u3048\u305f\u3089\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5f85\u3061\u6642\u9593\u3084\u30af\u30a8\u30ea\u30fc\u6642\u9593\u3068\u95a2\u9023\u4ed8\u3051\u308b\u3002\u307e\u305f\u3001\u9ad8\u4fa1\u306a\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u3092\u8a8d\u8b58\u3059\u308b\u305f\u3081\u306b\u3001\u30de\u30a4\u30ca\u30fc\uff0f\u30e1\u30b8\u30e3\u30fc\u30da\u30fc\u30b8\u30d5\u30a9\u30fc\u30eb\u30c8\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002\u30d0\u30c3\u30d5\u30a1\u6226\u7565\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u3001\u79c1\u306f\u3053\u306e\u30ac\u30a4\u30c9\u3092\u4f7f\u3063\u3066\u3044\u308b\u3002 <a href=\"https:\/\/webhosting.de\/ja\/%e3%83%9b%e3%82%b9%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0%e3%83%90%e3%83%83%e3%83%95%e3%82%a1%e3%82%ad%e3%83%a3%e3%83%83%e3%82%b7%e3%83%a5%e7%a9%ba%e3%81%8d%e3%83%aa%e3%82%bd%e3%83%bc%e3%82%b9%e3%82%ad\/\">\u30d0\u30c3\u30d5\u30a1\u3068\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u4f7f\u7528\u7387<\/a>. .\u30e1\u30c8\u30ea\u30c3\u30af\u30b9\u3068\u30ed\u30b0\u304c\u4e00\u8cab\u3057\u305f\u5727\u529b\u3092\u793a\u3057\u3066\u3044\u308b\u3068\u304d\u3060\u3051\u3001\u79c1\u306f\u4ecb\u5165\u3057\u3066\u8a2d\u5b9a\u3092\u5909\u66f4\u3059\u308b\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/04\/swap_server_performance_1234.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30ab\u30fc\u30cd\u30eb\u306f\u3069\u306e\u3088\u3046\u306b\u30da\u30fc\u30b8\u3092\u9078\u629e\u3059\u308b\u306e\u304b\uff1aReclaim\u3092\u3055\u3089\u306b\u6df1\u304f\u898b\u308b<\/h2>\n\n<p>Linux\u306f\u533f\u540d\u30da\u30fc\u30b8\uff08\u30d2\u30fc\u30d7\/\u30b9\u30bf\u30c3\u30af\uff09\u3068\u30d5\u30a1\u30a4\u30eb\u5bfe\u5fdc\u30da\u30fc\u30b8\uff08\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\uff09\u3092\u533a\u5225\u3057\u3066\u3044\u308b\u3002\u3069\u3061\u3089\u3082LRU\u30ea\u30b9\u30c8\uff08active\/inactive\uff09\u306b\u30a2\u30bf\u30c3\u30c1\u3055\u308c\u3066\u3044\u308b\u3002\u30e1\u30e2\u30ea\u304c\u5727\u8feb\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u30ab\u30fc\u30cd\u30eb\u306f\u307e\u305a\u3001\u975e\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30d5\u30a1\u30a4\u30eb\u30d9\u30fc\u30b9\u306e\u30da\u30fc\u30b8\u3092\uff08\u30c7\u30a3\u30b9\u30af\u304b\u3089\u30ea\u30ed\u30fc\u30c9\u3067\u304d\u308b\u306e\u3067\u7d20\u65e9\u304f\uff09\u5ec3\u68c4\u3057\u3088\u3046\u3068\u3059\u308b\u3002\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u533f\u540d\u30da\u30fc\u30b8\u304c\u591a\u3059\u304e\u308b\u5834\u5408\u306f\u3001\u30b9\u30ef\u30c3\u30d7\u306b\u79fb\u52d5\u3055\u305b\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u3053\u308c\u306f\u3088\u308a\u9ad8\u304f\u3064\u304f\u3002 <code>vm.vfs_cache_pressure<\/code> \u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30c7\u30f3\u30c8\u30ea\/\u30b3\u30fc\u30c9\u306e\u7834\u68c4\u304c\u9ad8\u901f\u5316\u3055\u308c\u3001\u5bb9\u91cf\u304c\u7a7a\u304d\u307e\u3059\u304c\u3001\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u3067\u306e\u30d5\u30a1\u30a4\u30eb\u30a2\u30af\u30bb\u30b9\u304c\u5897\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u79c1\u306f\u901a\u5e3850-100\u7a0b\u5ea6\u306b\u4fdd\u3061\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30d2\u30c3\u30c8\u7387\u3068\u30ec\u30a4\u30c6\u30f3\u30b7\u306e\u5909\u5316\u3092\u89b3\u5bdf\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n<p>\u79c1\u306f\u3001\u30e9\u30a4\u30c6\u30a3\u30f3\u30b0\u30fb\u30d1\u30b9\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3002 <code>vm.dirty_background_bytes<\/code>\/<code>vm.dirty_bytes<\/code> (\u307e\u305f\u306f\u305d\u306e\u6bd4\uff09\u3002\u9ad8\u3059\u304e\u308b\u30c0\u30fc\u30c6\u30a3\u30fb\u30ea\u30df\u30c3\u30c8\u306f\u554f\u984c\u3092\u5148\u9001\u308a\u3059\u308b\u3060\u3051\u3067\u3001\u5f8c\u3067\u5927\u304d\u306a\u30e9\u30a4\u30c8\u30d0\u30c3\u30af\u3092\u767a\u751f\u3055\u305b\u3001\u30b9\u30ef\u30c3\u30d7\u518d\u751f\u901f\u5ea6\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u3002\u5927\u5bb9\u91cfRAM\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u30d0\u30a4\u30c8\u30d9\u30fc\u30b9\u306e\u5236\u9650\u304c\u3088\u308a\u6b63\u78ba\u306b\u6a5f\u80fd\u3059\u308b\u306e\u3067\u3001\u79c1\u306f\u30d0\u30a4\u30c8\u30d9\u30fc\u30b9\u306e\u5236\u9650\u3092\u597d\u3080\u3002\u3082\u30461\u3064\u306e\u56de\u907f\u7b56\u306f <code>vm.min_free_k\u30d0\u30a4\u30c8<\/code>\u3053\u306e\u5024\u304c\u4f4e\u3059\u304e\u308b\u3068\u3001\u518d\u751f\u304c\u591a\u5fd9\u306a\u30b5\u30a4\u30af\u30eb\u306b\u9665\u308a\u3001\u9ad8\u3059\u304e\u308b\u3068RAM\u3092\u6d6a\u8cbb\u3059\u308b\u3002dmesg\u3067 \u201elow free watermarks \u201c\u3068\u5e38\u306b\u8868\u793a\u3055\u308c\u306a\u3044\u9650\u308a\u3001\u79c1\u306f\u901a\u5e38\u3053\u306e\u5024\u3092\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u307e\u307e\u306b\u3057\u3066\u304a\u304f\u3002.<\/p>\n\n<h2>PSI\u3068kswapd\uff1a\u5148\u884c\u6307\u6a19\u3092\u6b63\u3057\u304f\u89e3\u91c8\u3059\u308b<\/h2>\n\n<p>\u53e4\u5178\u7684\u306a\u6e2c\u5b9a\u57fa\u6e96\u306b\u52a0\u3048\u3066\u3001\u79c1\u306f\u6b21\u306e\u3088\u3046\u306a\u6e2c\u5b9a\u57fa\u6e96\u3092\u4f7f\u3063\u3066\u3044\u308b\u3002 <em>\u5727\u529b\u5931\u901f\u60c5\u5831<\/em> \u306b\u65bc\u3044\u3066 <code>\/proc\/pressure\/memory<\/code>. .\u9ad8\u3044 <code>\u3044\u304f\u3064\u304b<\/code> \u6216\u3044\u306f <code>\u30d5\u30eb<\/code> \u6570\u79d2\u4ee5\u4e0a\u306e\u5024\u306f\u3001\u30bf\u30b9\u30af\u304c\u30e1\u30e2\u30ea\u3092\u5f85\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u308b\u3002\u3053\u308c\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u306b\u6c17\u3065\u304f\u524d\u306e\u6700\u521d\u306e\u5146\u5019\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044\u3002\u540c\u6642\u306b\u3001\u79c1\u306f <strong>kswapd<\/strong>\u6570\u30d1\u30fc\u30bb\u30f3\u30c8\u4ee5\u4e0a\u4e0a\u6607\u3059\u308b\u3068\u3001Reclaim\u306f\u71b1\u304f\u306a\u308b\u3002\u3068 <code>vmstat 1<\/code> \u79c1\u306f\u6b21\u306e\u3053\u3068\u306b\u6ce8\u610f\u3092\u6255\u3063\u3066\u3044\u308b\u3002 <code>\u30b7\u30fc<\/code>\/<code>\u7136\u308c\u3070<\/code> (\u30b9\u30ef\u30c3\u30d7\u30fb\u30a4\u30f3\/\u30a2\u30a6\u30c8\uff09\u3068 <code>r<\/code>\/<code>b<\/code> (\u30e9\u30f3\uff0f\u30d6\u30ed\u30c3\u30af\u30ad\u30e5\u30fc\uff09\u3002\u5e38\u306b\u9ad8\u3044 <code>\u7136\u308c\u3070<\/code>-\u4fa1\u5024\u89b3\u306e\u62e1\u5927 <code>b<\/code>-\u305d\u3057\u3066\u79c1\u306f\u4e00\u8cab\u3057\u3066\u4ecb\u5165\u3059\u308b\u3002.<\/p>\n\n<h2>Cgroups v2\u3068systemd: \u30b9\u30ef\u30c3\u30d7\u3092\u610f\u56f3\u7684\u306b\u5236\u9650\u3059\u308b<\/h2>\n\n<p>\u30de\u30eb\u30c1\u30c6\u30ca\u30f3\u30c8\u3084\u30b3\u30f3\u30c6\u30ca\u74b0\u5883\u3067\u306f\u30011\u3064\u306e\u30b5\u30fc\u30d3\u30b9\u304c\u3059\u3079\u3066\u306e\u30ea\u30b6\u30fc\u30d6\u3092\u98df\u3044\u3064\u3076\u3057\u3066\u3057\u307e\u3046\u306e\u3092\u9632\u3044\u3067\u3044\u308b\u3002cgroups v2\u3067\u306f <code>\u30e1\u30e2\u30ea.max<\/code> (\u30cf\u30fc\u30c9\u30ea\u30df\u30c3\u30c8\uff09\u3001, <code>\u30e1\u30e2\u30ea.high<\/code> (\u30bd\u30d5\u30c8\u30c1\u30e7\u30fc\u30af\uff09\u3068 <code>\u30e1\u30e2\u30ea\u30b9\u30ef\u30c3\u30d7\u6700\u5927<\/code> (\u30b9\u30ef\u30c3\u30d7\u5236\u9650\uff09\u3002systemd\u3067\u306f\u30b5\u30fc\u30d3\u30b9\u3054\u3068\u306b <code>MemoryMax=<\/code>, <code>MemoryHigh=<\/code> \u305d\u3057\u3066 <code>MemorySwapMax=<\/code> \u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3057\u307e\u3059\u3002\u3064\u307e\u308a\u3001PHP-FPM \u304c\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u3092\u30b9\u30ef\u30c3\u30d7\u72b6\u614b\u306b\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u305a\u3001 \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306f\u53cd\u5fdc\u3057\u7d9a\u3051\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u30d0\u30fc\u30b9\u30c8\u3067\u306f\u3001\u72ed\u3044 <code>\u30e1\u30e2\u30ea.high<\/code> \u30d7\u30e9\u30b9\u30fb\u30e2\u30c7\u30e9\u30fc\u30c8 <code>MemorySwapMax=<\/code>, \u30cf\u30fc\u30c9\u306aOOM\u306e\u30ea\u30b9\u30af\u3092\u5192\u3059\u4ee3\u308f\u308a\u306b\u306d\u3002\u79c1\u306f\u5404\u30b5\u30fc\u30d3\u30b9\u3054\u3068\u306b\u3053\u308c\u3089\u306e\u5236\u9650\u3092\u6587\u66f8\u5316\u3057\u3001\u30ec\u30d3\u30e5\u30fc\u306e\u904e\u7a0b\u3067\u5e38\u306b\u6700\u65b0\u306e\u72b6\u614b\u306b\u4fdd\u3064\u3002.<\/p>\n\n<h2>\u30b9\u30ef\u30c3\u30d7\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210\u3001\u62e1\u5927\u3001\u512a\u5148\u9806\u4f4d\u4ed8\u3051\u3092\u304d\u308c\u3044\u306b\u884c\u3046<\/h2>\n\n<p>\u5b9f\u969b\u306b\u306f\u3001\u7d20\u65e9\u304f\u518d\u73fe\u53ef\u80fd\u306a\u30b9\u30c6\u30c3\u30d7\u304c\u5fc5\u8981\u3060\uff1a<\/p>\n<ul>\n  <li>\u30b9\u30ef\u30c3\u30d7\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3059\u308b\uff1a <code>fallocate -l 8G \/swapfile &amp;&amp; chmod 600 \/swapfile &amp;&amp; mkswap \/swapfile<\/code><\/li>\n  <li>\u30a2\u30af\u30c6\u30a3\u30d9\u30fc\u30c8\u3059\u308b\uff1a <code>\u30b9\u30ef\u30dd\u30f3 \/\u30b9\u30ef\u30c3\u30d7\u30d5\u30a1\u30a4\u30eb<\/code>; \u6052\u4e45\u7684\u306b <code>\/etc\/fstab<\/code> \u3092\u3082\u3063\u3066 <code>\/swapfile none swap sw,pri=5 0 0<\/code><\/li>\n  <li>\u30b5\u30a4\u30ba\u3092\u8abf\u6574\u3059\u308b\uff1a <code>\u30b9\u30ef\u30c3\u30d7\u30aa\u30d5 \/\u30b9\u30ef\u30c3\u30d7\u30d5\u30a1\u30a4\u30eb<\/code>, <code>fallocate -l 12G \/swapfile<\/code>, <code>mkswap \/swapfile<\/code>, <code>\u30b9\u30ef\u30dd\u30f3 \/\u30b9\u30ef\u30c3\u30d7\u30d5\u30a1\u30a4\u30eb<\/code><\/li>\n  <li>\u30de\u30eb\u30c1\u30b9\u30ef\u30c3\u30d7\uff1a\u3088\u308a\u9ad8\u901f\u306aNVMe\u3068\u3088\u308a\u9ad8\u3044\u30b9\u30ef\u30c3\u30d7\u6027\u80fd <code>\u30d7\u30e9\u30a4<\/code> \u512a\u5148\u9806\u4f4d\u3092\u3064\u3051\u308b\u3002 <code>swapon --show --output=NAME,PRIO,SIZE,USED<\/code> \u30b3\u30f3\u30c8\u30ed\u30fc\u30eb<\/li>\n<\/ul>\n<p>IO\u304c\u975e\u5e38\u306b\u5f31\u3044\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u30b9\u30ef\u30c3\u30d7\u30fb\u30b5\u30a4\u30ba\u3092\u5c0f\u3055\u304f\u3059\u308b\u304b\u3001\u30b9\u30ef\u30c3\u30d7\u3092\u3088\u308a\u9ad8\u901f\u306a\u30c7\u30fc\u30bf\u30fb\u30ad\u30e3\u30ea\u30a2\u306b\u914d\u7f6e\u3059\u308b\u65b9\u304c\u3001\u30b7\u30b9\u30c6\u30e0\u304c\u3086\u3063\u304f\u308a\u3068\u300c\u6b7b\u306c\u307e\u3067\u30b9\u30ef\u30c3\u30d7\u3057\u7d9a\u3051\u308b\u300d\u3088\u308a\u306f\u307e\u3057\u3060\u3002.<\/p>\n\n<h2>Zswap\u3068ZRAM\uff1a\u5727\u7e2e\u304c\u672c\u5f53\u306b\u5f79\u7acb\u3064\u3068\u304d<\/h2>\n\n<p>Zswap\u306f\u3001RAM\u3067\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3055\u308c\u305f\u30d7\u30fc\u30eb\u3067\u30b9\u30ef\u30c3\u30d7\u30a2\u30a6\u30c8\u3055\u308c\u308b\u30da\u30fc\u30b8\u3092\u5727\u7e2e\u3057\u3001\u7269\u7406IO\u3092\u524a\u6e1b\u3059\u308b\u3002\u3053\u308c\u306fSSD\u3092\u4fdd\u8b77\u3059\u308b\u304c\u3001CPU\u6642\u9593\u3092\u72a0\u7272\u306b\u3059\u308b\u3002\u30b3\u30a2\u6570\u306e\u5c11\u306a\u3044VM\u3067\u306f\u3001\u307e\u305alz4\uff08\u9ad8\u901f\u3067\u5f31\u3044\u5727\u7e2e\uff09\u3092\u30c6\u30b9\u30c8\u3057\u3001CPU\u30d4\u30fc\u30af\u304c\u5897\u52a0\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u89b3\u5bdf\u3059\u308b\u3002IO\u304c\u307b\u3068\u3093\u3069\u306a\u3044\u72b6\u614b\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u3001\u975e\u5e38\u306b\u5c0f\u3055\u306a\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3067\u306fZRAM\u3092\u9078\u629e\u7684\u306b\u53e4\u5178\u7684\u306a\u30b9\u30ef\u30c3\u30d7\u306b\u7f6e\u304d\u63db\u3048\u308b\u3002\u65b0\u305f\u306a\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3092\u4f5c\u3089\u306a\u3044\u305f\u3081\u306b\u3001\u5727\u7e2e\u306f\u610f\u56f3\u7684\u306b\u5c0f\u3055\u304f\u3057\u3066\u3044\u308b\uff08\u4f8b\u3048\u3070ZRAM\u306f25-50% RAM\uff09\u3002CPU\u30d0\u30a6\u30f3\u30c9\u306e\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u304c\u3064\u307e\u305a\u304d\u59cb\u3081\u305f\u3089\u3001\u3059\u3050\u306b\u3053\u306e\u6700\u9069\u5316\u3092\u898b\u76f4\u3059\u3002.<\/p>\n\n<h2>THP\u3068\u30d5\u30e9\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\uff1a\u96a0\u308c\u305f\u9045\u5ef6\u306e\u30d6\u30ec\u30fc\u30ad<\/h2>\n\n<p>Transparent Huge Pages (THP)\u306fJVM\u3084\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u52a9\u3051\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u6df7\u5728\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u74b0\u5883\u3067\u306e\u518d\u751f\u3084\u30b9\u30ef\u30c3\u30d7\u306e\u8ca0\u62c5\u3092\u8efd\u6e1b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u79c1\u306fTHP\u3092 <code>\u30de\u30c9\u30f4\u30a1\u30a4\u30ba<\/code>, \u660e\u793a\u7684\u306b\u4f7f\u7528\u3059\u308b\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3060\u3051\u304c\u6069\u6075\u3092\u53d7\u3051\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u3060\u3002\u30e1\u30e2\u30ea\u306e\u65ad\u7247\u5316\u304c\u9855\u8457\u306b\u306a\u3063\u305f\u5834\u5408\u306f\u3001\u30e1\u30e2\u30ea\u96c6\u7d04\u578b\u30b5\u30fc\u30d3\u30b9\u306e\u30ed\u30fc\u30ea\u30f3\u30b0\u518d\u8d77\u52d5\u3092\u8a08\u753b\u3057\u3001\u30d2\u30fc\u30d7\u304c\u7834\u58ca\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3002MySQL\/MariaDB\u306b\u3064\u3044\u3066\u306f\u3001Linux\u306e\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u98e2\u3048\u306a\u3044\u3088\u3046\u306b\u3001InnoDB\u306e\u30d0\u30c3\u30d5\u30a1\u30d7\u30fc\u30eb\u304c\u7dcf\u30e1\u30e2\u30ea\u306b\u5bfe\u3057\u3066\u5341\u5206\u5927\u304d\u3044\u304b\u3069\u3046\u304b\u3082\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002.<\/p>\n\n<h2>NUMA\u3068\u30de\u30eb\u30c1\u30bd\u30b1\u30c3\u30c8\u30db\u30b9\u30c8<\/h2>\n\n<p>NUMA \u306f\u5927\u898f\u6a21\u306a\u30d9\u30a2\u30e1\u30bf\u30eb\u30db\u30b9\u30c8\u3067\u5f79\u5272\u3092\u679c\u305f\u3059\u3002\u30a2\u30f3\u30d0\u30e9\u30f3\u30b9\u306a\u30e1\u30e2\u30ea\u30a2\u30af\u30bb\u30b9\u306f\u30ec\u30a4\u30c6\u30f3\u30b7\u3092\u5897\u52a0\u3055\u305b\u3001\u30ea\u30af\u30ec\u30a4\u30e0\u3092\u52a0\u901f\u3055\u305b\u308b\u3002\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3092 <code>numactl --interleave=all<\/code> \u307e\u305f\u306f\u30ce\u30fc\u30c9\u3054\u3068\u306b\u7279\u5b9a\u306e\u30b5\u30fc\u30d3\u30b9\u3092\u30d4\u30f3\u7559\u3081\u3057\u307e\u3059\u3002\u591a\u304f\u306e\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\u30a2\u30af\u30bb\u30b9\u3092\u5f15\u304d\u8d77\u3053\u3059\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u306a\u30b5\u30fc\u30d3\u30b9\uff08Nginx\u306a\u3069\uff09\u306f\u3001\u30c7\u30fc\u30bf\u30d1\u30b9\u306e\u8fd1\u304f\u306b\u7f6e\u3044\u3066\u3044\u307e\u3059\u3002\u30e1\u30e2\u30ea\u3092\u5927\u91cf\u306b\u6d88\u8cbb\u3059\u308b\u30d0\u30c3\u30c1\u30b8\u30e7\u30d6\u306f\u30ab\u30d7\u30bb\u30eb\u5316\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066cgroup\u306e\u5236\u9650\u3092\u53b3\u3057\u304f\u3057\u3066\u3001NUMA\u306e\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u304c\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u3092\u30b9\u30ef\u30c3\u30d7\u306b\u62bc\u3057\u8fbc\u307e\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n<h2>\u30d7\u30ed\u30bb\u30b9\u8a3a\u65ad\uff1a\u8ab0\u304c\u672c\u5f53\u306b\u4ea4\u63db\u3059\u308b\u306e\u304b\uff1f<\/h2>\n\n<p>\u30b7\u30b9\u30c6\u30e0\u30fb\u30e1\u30c8\u30ea\u30af\u30b9\u304c\u30a2\u30e9\u30fc\u30e0\u3092\u767a\u3057\u305f\u5834\u5408\u3001\u79c1\u306f\u30d7\u30ed\u30bb\u30b9\u30fb\u30ec\u30d9\u30eb\u3067\u539f\u56e0\u3092\u7279\u5b9a\u3059\u308b\uff1a <code>Smem -knr<\/code> \u306fPSS\/USS\uff08\u73fe\u5b9f\u7684\u306a\u30e1\u30e2\u30ea\u30fc\u30b7\u30a7\u30a2\uff09\u3092\u793a\u3057\u3066\u3044\u308b\u3001, <code>pmap -x &lt;pid<\/code> \u30bb\u30b0\u30e1\u30f3\u30c8\u5206\u5e03\u3067 <code>\/proc\/\/\u30b9\u30c6\u30fc\u30bf\u30b9<\/code> \u79c1\u306f\u30c1\u30a7\u30c3\u30af\u3059\u308b <code>\u30d6\u30a4\u30a8\u30e0\u30a2\u30fc\u30eb\u30a8\u30b9\u30a8\u30b9<\/code>, <code>\u30d6\u30a4\u30a8\u30e0\u30b9\u30ef\u30c3\u30d7<\/code> \u305d\u3057\u3066 <code>oom_score_adj<\/code>. .\u9ad8\u3044 <code>\u30d6\u30a4\u30a8\u30e0\u30b9\u30ef\u30c3\u30d7<\/code>-LRU\u306b\u5411\u304b\u306a\u3044\u30d1\u30bf\u30fc\u30f3\uff08\u533f\u540d\u30da\u30fc\u30b8\u304c\u591a\u304f\u3001\u307b\u3068\u3093\u3069\u4f7f\u308f\u308c\u3066\u3044\u306a\u3044\uff09\u306e\u5024\u306f\u3001\u5236\u9650\u3084\u30b3\u30fc\u30c9\u306e\u6700\u9069\u5316\u306e\u5019\u88dc\u3068\u306a\u308b\u3002\u307e\u305f <code>pidstat -r 1<\/code>, \u30d7\u30ed\u30bb\u30b9\u3054\u3068\u306e\u30d5\u30a9\u30fc\u30eb\u30c8\u30fb\u30ec\u30fc\u30c8\u3092\u78ba\u8a8d\u3057\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u3068\u6bd4\u8f03\u3059\u308b\u3002.<\/p>\n\n<h2>\u30e9\u30f3\u30d6\u30c3\u30af\u3001SLO\u3001\u30a8\u30b9\u30ab\u30ec\u30fc\u30b7\u30e7\u30f3\u30ec\u30d9\u30eb<\/h2>\n\n<p>\u30db\u30b9\u30c8\u30af\u30e9\u30b9\u3054\u3068\u306b\u660e\u78ba\u306a\u5236\u9650\u5024\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001kswapd-CPU &lt; 5\u5206\u5e73\u5747\u30675%\u3001\u30e1\u30b8\u30e3\u30fc\u30d5\u30a9\u30eb\u30c8 &lt; \u901a\u5e38\u904b\u7528\u306750\/\u30b3\u30a2\u3001PSI\u30e1\u30e2\u30ea <code>\u3044\u304f\u3064\u304b<\/code> &lt; 10% over 60s\u3002\u3082\u30572\u3064\u306e\u30e1\u30c8\u30ea\u30af\u30b9\u304c\u540c\u6642\u306b\u58ca\u308c\u305f\u5834\u5408\u3001\u79c1\u306f\u6b21\u306e\u3088\u3046\u306a\u9806\u5e8f\u3067\u4ecb\u5165\u3059\u308b\uff1a\u30b9\u30ef\u30c3\u30d4\u30cd\u30b9\u306e\u30c1\u30a7\u30c3\u30af\u3001\u30ef\u30fc\u30ab\u30fc\uff0f\u30d0\u30c3\u30d5\u30a1\u306e\u4e00\u6642\u7684\u306a\u30b9\u30ed\u30c3\u30c8\u30eb\u3001\u30b9\u30ef\u30c3\u30d7\u306e\u914d\u7f6e\u3068\u512a\u5148\u9806\u4f4d\u306e\u8abf\u6574\u3001\u5727\u7e2e\u306e\uff08\u89e3\u9664\uff09\u6709\u52b9\u5316\u3001\u5fc5\u8981\u3067\u3042\u308c\u3070RAM\u306e\u5897\u52a0\u3002\u3053\u308c\u3089\u306e\u30e9\u30f3\u30d6\u30c3\u30af\u306f\u79c1\u306e\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u5bfe\u5fdc\u306e\u4e00\u90e8\u3067\u3042\u308a\u3001\u30c1\u30fc\u30e0\u304c\u518d\u73fe\u53ef\u80fd\u306a\u65b9\u6cd5\u3067\u884c\u52d5\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u3060\u3002 <strong>\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc<\/strong> \u5236\u5fa1\u4e0b\u306b\u7559\u307e\u308b\u3002.<\/p>\n\n<h2>\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\uff1a\u5178\u578b\u7684\u306a\u539f\u56e0\u3068\u8fc5\u901f\u306a\u89e3\u6c7a\u7b56<\/h2>\n\n<p>\u30b9\u30ef\u30c3\u30d7\u30ec\u30fc\u30c8\u304c\u4e0a\u304c\u3063\u305f\u3089\u3001\u307e\u305a\u30e1\u30e2\u30ea\u3092\u5927\u91cf\u306b\u6d88\u8cbb\u3059\u308b\u30b5\u30fc\u30d3\u30b9\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u6b21\u306e\u3088\u3046\u306b\u5236\u9650\u3059\u308b\u3002 <strong>cgroups<\/strong> \u307e\u305f\u306f\u30b5\u30fc\u30d3\u30b9\u8a2d\u5b9a\u3002\u305d\u308c\u304b\u3089\u3001PHP\u30ef\u30fc\u30ab\u30fc\u304c\u591a\u3059\u304e\u306a\u3044\u304b\u3001DB\u30d0\u30c3\u30d5\u30a1\u304c\u5927\u304d\u3059\u304e\u306a\u3044\u304b\u3001\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u5c0f\u3055\u3059\u304e\u306a\u3044\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002\u30b9\u30ef\u30c3\u30d7\u3092\u6e1b\u3089\u3057\u3001\u4e00\u6642\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u6574\u7406\u3057\u3001\u30ed\u30b0\u306e\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u30d4\u30fc\u30af\u6642\u304b\u3089\u305a\u3089\u3057\u307e\u3059\u3002IO\u30ad\u30e5\u30fc\u304c\u6052\u5e38\u7684\u306b\u9ad8\u3044\u307e\u307e\u306a\u3089\u3001\u30b9\u30ef\u30c3\u30d7\u3092\u518d\u914d\u7f6e\u3059\u308b\u304b\u3001IO\u7af6\u5408\u3092\u6700\u5c0f\u5316\u3059\u308b\u305f\u3081\u306b\u30b9\u30ef\u30c3\u30d7\u3092\u6e1b\u3089\u3059\u3002\u305d\u308c\u3067\u3082\u4e0d\u5341\u5206\u306a\u5834\u5408\u306f\u3001RAM\u3092\u5897\u3084\u3057\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u304c\u4f4e\u3044\u30ec\u30d9\u30eb\u3067\u5b89\u5b9a\u3059\u308b\u307e\u3067\u518d\u5ea6\u6e2c\u5b9a\u3059\u308b\u3002.<\/p>\n\n<h2>PHP\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3001Node.js\u306e\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0<\/h2>\n\n<p>PHP\u3067\u306f\u3001\u30d5\u30eb\u30da\u30fc\u30b8\u307e\u305f\u306fOPcache\u306e\u30d2\u30c3\u30c8\u3092\u6700\u5927\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u3092\u7e70\u308a\u8fd4\u3059\u305f\u3081\u306b\u4f7f\u7528\u3059\u308bRAM\u3092\u5c11\u306a\u304f\u3057\u3066\u3044\u308b\u3002 <strong>\u5fdc\u7b54\u6642\u9593<\/strong> \u304c\u6e1b\u5c11\u3059\u308b\u3002MySQL\/MariaDB\u3067\u306f\u3001\u30d0\u30c3\u30d5\u30a1\u30d7\u30fc\u30eb\u3068\u30af\u30a8\u30ea\u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u3068\u308a\u3001\u4e8c\u91cd\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u907f\u3051\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002Node.js\u3067\u306f\u3001\u30d2\u30fc\u30d7\u306b\u5236\u9650\u3092\u8a2d\u3051\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30ac\u30d9\u30fc\u30b8\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u76e3\u8996\u3057\u3066\u3044\u308b\u3002 <strong>\u30a4\u30d9\u30f3\u30c8\u30eb\u30fc\u30d7<\/strong> \u304c\u8870\u3048\u308b\u3053\u3068\u306f\u306a\u3044\u3002\u307e\u305f\u3001\u5b9a\u671f\u7684\u306b\u30b5\u30fc\u30d3\u30b9\u3092\u518d\u8d77\u52d5\u3057\u3001\u30ea\u30fc\u30af\u3092\u691c\u51fa\u3059\u308b\u30ed\u30fc\u30eb\u30a2\u30a6\u30c8\u306b\u3088\u3063\u3066\u3001\u30e1\u30e2\u30ea\u306e\u65ad\u7247\u5316\u3092\u9632\u3044\u3067\u3044\u308b\u3002\u3092\u7c21\u5358\u306b\u8a73\u3057\u304f\u898b\u3066\u307f\u3088\u3046\u3002 <a href=\"https:\/\/webhosting.de\/ja\/%e3%83%a1%e3%83%a2%e3%83%aa%e3%81%ae%e6%96%ad%e7%89%87%e5%8c%96%e3%80%81%e3%82%a6%e3%82%a7%e3%83%96%e3%83%9b%e3%82%b9%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0%e3%80%81php%e3%80%81mysql%e3%80%81%e6%9c%80\/\">\u30e1\u30e2\u30ea\u306e\u65ad\u7247\u5316<\/a> \u3053\u306e\u3088\u3046\u306a\u5fcd\u3073\u5bc4\u308b\u554f\u984c\u3092\u3088\u308a\u8fc5\u901f\u306b\u767a\u898b\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/04\/entwickler_schreibtisch_swap_5647.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30b3\u30f3\u30c6\u30ca\u3068\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30b9\u30bf\u30c3\u30af\uff1a\u5b9f\u4f8b<\/h2>\n\n<p>\u30b3\u30f3\u30c6\u30ca\u74b0\u5883\u3067\u306f\u3001\u30dd\u30c3\u30c9\u3084\u30b5\u30fc\u30d3\u30b9\u3054\u3068\u306b\u30cf\u30fc\u30c9\u306a\u30e1\u30e2\u30ea\u5236\u9650\u3092\u8a2d\u5b9a\u3057\u3001 \u9069\u5ea6\u306a\u91cf\u306e\u30b9\u30ef\u30c3\u30d7\u3057\u304b\u8a31\u53ef\u3057\u307e\u305b\u3093\u3002PHP-FPM\u306e\u5834\u5408\u306f\u3001\u30ef\u30fc\u30ab\u30fc\u3042\u305f\u308a\u306e\u30e1\u30e2\u30ea\uff08RSS\uff09\u3068\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30d8\u30c3\u30c9\u30eb\u30fc\u30e0\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002\u4f8b: 512 MB RAM\u300130 MB\/\u30ef\u30fc\u30ab\u30fc\u306e\u5b9f\u8cea\u6d88\u8cbb\u91cf - \u306a\u3089\u3070\u300120\u30ef\u30fc\u30ab\u30fc\u3067\u306f\u306a\u304f\u30018-10\u30ef\u30fc\u30ab\u30fc\u304c\u73fe\u5b9f\u7684\u3067\u3059\u3002 Node.js\u306e\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002 <code>--\u6700\u5927\u53e4\u3044\u30b9\u30da\u30fc\u30b9\u30b5\u30a4\u30ba<\/code> GC\u306b\u8ca0\u62c5\u304c\u304b\u304b\u3089\u306a\u3044\u3088\u3046\u306b\u3001\u307e\u305f\u30ab\u30fc\u30cd\u30eb\u304c\u533f\u540d\u30e1\u30e2\u30ea\u30fc\u3092\u7a4d\u6975\u7684\u306b\u30b9\u30ef\u30c3\u30d7\u3057\u306a\u3044\u3088\u3046\u306b\u3001\u7269\u7406\u7684\u306a\u4e0a\u9650\u3092\u610f\u56f3\u7684\u306b\u4e0b\u56de\u3063\u3066\u3044\u308b\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u3064\u3044\u3066\u306f\u3001\u56fa\u5b9a\u4e88\u7b97\u3092\u8a08\u753b\u3057\u3001\u53ef\u80fd\u306a\u9650\u308a\u30a6\u30a7\u30d6\u5c64\u304b\u3089\u5206\u96e2\u3057\u3001OS\u306b\u30d5\u30a1\u30a4\u30eb\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u305f\u3081\u306e\u5341\u5206\u306a\u30b9\u30da\u30fc\u30b9\u3092\u4e0e\u3048\u308b\u3002.<\/p>\n\n<h2>\u30b3\u30b9\u30c8\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3001RAM\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u306e\u30bf\u30a4\u30df\u30f3\u30b0<\/h2>\n\n<p>\u79c1\u306f\u30e6\u30fc\u30ed\u3067\u7b49\u4fa1\u5024\u3092\u8a08\u7b97\u3059\u308b\uff1a\u30b9\u30ef\u30c3\u30d7\u5370\u5237\u304c\u6052\u4e45\u7684\u306a\u30ec\u30a4\u30c6\u30f3\u30b7\u3092\u751f\u3080\u306a\u3089\u3001\u8ffd\u52a0RAM\u306f\u3059\u3050\u306b\u4fa1\u683c\u3092\u6b63\u5f53\u5316\u3057\u3001\u5b9f\u969b\u306e\u30ec\u30a4\u30c6\u30f3\u30b7\u3092\u751f\u3080\u3002 <strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/strong>. .NVMe\u306fIO\u30ec\u30a4\u30c6\u30f3\u30b7\u3092\u524a\u6e1b\u3059\u308b\u304c\u3001\u63ee\u767a\u6027\u30e1\u30e2\u30ea\u306e\u4ee3\u308f\u308a\u306b\u306f\u306a\u3089\u306a\u3044\u3002\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3092\u62e1\u5f35\u3059\u308b\u524d\u306b\u3001\u30b9\u30ef\u30c3\u30d7\u3001\u30d0\u30c3\u30d5\u30a1\u3001\u30ef\u30fc\u30ab\u30fc\u6570\u3092\u6700\u9069\u5316\u3057\u3066\u52b9\u7387\u3092\u4e0a\u3052\u308b\u3002\u5229\u7528\u7387\u304c\u9ad8\u3044\u307e\u307e\u3067\u3042\u308c\u3070\u3001\u30b9\u30ef\u30c3\u30d7\u3060\u3051\u3092\u5897\u3084\u3059\u306e\u3067\u306f\u306a\u304f\u3001\u8ce2\u660e\u306a\u6bb5\u968e\u3092\u8e0f\u3093\u3067RAM\u306e\u5897\u8a2d\u3092\u8a08\u753b\u3059\u308b\u3002\u3053\u306e\u9806\u5e8f\u306f\u3001\u9593\u9055\u3063\u305f\u6295\u8cc7\u3092\u9632\u304e\u3001\u5f8c\u306e\u6bd4\u8f03\u306e\u305f\u3081\u306e\u660e\u78ba\u306a\u6e2c\u5b9a\u70b9\u3092\u4e0e\u3048\u3066\u304f\u308c\u308b\u3002.<\/p>\n\n<h2>\u30c1\u30a7\u30c3\u30af\uff1a15\u5206\u3067\u4f7f\u7528\u30b5\u30fc\u30d0\u30fc\u3092\u5165\u308c\u66ff\u3048\u308b<\/h2>\n\n<p>\u79c1\u306f\u6b21\u306e\u3088\u3046\u306b\u59cb\u3081\u308b\u3002 <code>free -h<\/code>, <code>vmstat 1<\/code> \u3068\u78ba\u8a8d\u3059\u308b\u3002 <strong>\u30b9\u30ef\u30c3\u30d7<\/strong>-\u79fb\u52d5\u3001\u30da\u30fc\u30b8\u30d5\u30a9\u30eb\u30c8\u3001IO\u30ad\u30e5\u30fc\u3002\u305d\u308c\u304b\u3089 <code>vm.swappiness=10<\/code>, \u30ed\u30fc\u30c9 <code>sysctl<\/code> 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