{"id":2061,"date":"2019-10-16T10:00:20","date_gmt":"2019-10-16T01:00:20","guid":{"rendered":"http:\/\/domore.co.jp\/speedcurve\/?p=2061"},"modified":"2022-09-06T00:10:02","modified_gmt":"2022-09-05T15:10:02","slug":"jankandux","status":"publish","type":"post","link":"https:\/\/www.domore.co.jp\/speedcurve\/metric\/jankandux\/","title":{"rendered":"\u64cd\u4f5c\u4e0d\u80fd\u72b6\u614b\uff08Jank\uff09\u3068\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\uff08UX\uff09\u3092\u8a08\u6e2c\u3059\u308b"},"content":{"rendered":"<p>\u3010\u88dc\u8db3\u3011<br>\nJank \uff1a \u30d6\u30e9\u30a6\u30b6\u4e0a\u3067\u64cd\u4f5c\u4e0d\u80fd\u306a\u72b6\u614b\uff08\u611f\u899a\uff09<br>\nUX \uff1a \u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\uff08\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\uff09<\/p>\n<p><img loading=\"lazy\" class=\"wp-image-1988 alignnone\" src=\"http:\/\/domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/steve-souders.424-3.jpg\" alt=\"\" width=\"33\" height=\"33\" srcset=\"https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/steve-souders.424-3.jpg 577w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/steve-souders.424-3-150x150.jpg 150w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/steve-souders.424-3-300x300.jpg 300w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/steve-souders.424-3-60x60.jpg 60w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/steve-souders.424-3-120x120.jpg 120w\" sizes=\"(max-width: 33px) 100vw, 33px\" \/>Steve Souders<\/p>\n<p><span style=\"font-weight: 400;\">2019\u5e745\u67081\u65e5\u6c34\u66dc\u65e5<\/span><\/p>\n<p><span style=\"font-weight: 400;\">10\u5e74\u524d\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u9ad8\u901f\u5316\u3059\u308b\u4e0a\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u6700\u5927\u306e\u554f\u984c\u70b9\u3067\u3057\u305f\u3002\u6628\u4eca\u3067\u306f\u3001CPU\u304c\u4e3b\u306a\u61f8\u5ff5\u70b9\u3067\u3059\u3002\u3053\u308c\u306f\u3001<\/span><a href=\"https:\/\/speedcurve.com\/blog\/javascript-growth\/\"><span style=\"font-weight: 400;\">\u904e\u53bb6\u5e74\u9593\u3067JavaScript\u306e\u30b5\u30a4\u30ba\u304c3\u500d\u306b\u62e1\u5927<\/span><\/a><span style=\"font-weight: 400;\">\u3059\u308b\u4e00\u65b9\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u9ad8\u901f\u5316\u3057\u305f\u305f\u3081\u3067\u3059\u3002<\/span><a href=\"https:\/\/speedcurve.com\/blog\/javascript-dominates-browser-cpu\/\"><span style=\"font-weight: 400;\">JavaScript\u306f\u4ed6\u306e\u3059\u3079\u3066\u306e\u30d6\u30e9\u30a6\u30b6\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3092\u5408\u308f\u305b\u305f\u3082\u306e\u3088\u308a\u3082\u591a\u304f\u306eCPU\u3092\u6d88\u8cbb\u3059\u308b<\/span><\/a><span style=\"font-weight: 400;\">\u305f\u3081\u3001\u3053\u306e\u767a\u5c55\u306f\u3068\u3066\u3082\u91cd\u8981\u3067\u3059\u3002JavaScript\u3084\u305d\u306e\u4ed6\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u304cCPU\u3092\u30d6\u30ed\u30c3\u30af\u3057\u3066\u3044\u308b\u9593\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u30e6\u30fc\u30b6\u30fc\u306e\u5165\u529b\u306b\u53cd\u5fdc\u3067\u304d\u305a\u3001\u9045\u3044\u3001\u3044\u3089\u3044\u3089\u3059\u308b\u3001\u307e\u305f\u306f\u30da\u30fc\u30b8\u304c\u58ca\u308c\u3066\u3044\u308b\u3068\u3044\u3046\u611f\u899a\u3092\u751f\u307f\u51fa\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">CPU\u306b\u6ce8\u76ee\u3057\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u306b\u3001\u3053\u30531\u30013\u5e74\u306e\u9593\u306b\u3044\u304f\u3064\u304b\u306e\u65b0\u3057\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30fb\u30e1\u30c8\u30ea\u30c3\u30af\u304c\u5b9a\u7fa9\u3055\u308c\u666e\u53ca\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3053\u308c\u3089\u306b\u7126\u70b9\u3092\u5f53\u3066\u307e\u3059\u3002<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><a href=\"https:\/\/developers.google.com\/web\/tools\/lighthouse\/audits\/first-cpu-idle\"><span style=\"font-weight: 400;\">First CPU Idle<\/span><\/a><span style=\"font-weight: 400;\">\u306f\u3001\u30da\u30fc\u30b8\u306b\u6b20\u9665\u306e\u306a\u3044\u5834\u5408\u3092\u6e2c\u5b9a\u3057\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001First Contentful Paint\u306e\u5f8c\u3001\u30d6\u30e9\u30a6\u30b6\u306e\u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u304c50<\/span>\u33b3\u4ee5\u4e0a\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u3053\u3068\u304c\u306a\u3044\u6700\u521d\u306e5\u79d2\u9593\u3067\u3059\u30022~4\u79d2\u4f4d\u304c\u4e00\u822c\u7684\u3067\u3059\u3002<\/li>\n<li style=\"font-weight: 400;\"><a href=\"https:\/\/developers.google.com\/web\/updates\/2018\/05\/first-input-delay\"><span style=\"font-weight: 400;\">First Input Delay<\/span><\/a><span style=\"font-weight: 400;\">\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30da\u30fc\u30b8\u3092\u64cd\u4f5c\u3059\u308b\u30bf\u30a4\u30df\u30f3\u30b0(e\uff0eg\u3001\u30af\u30ea\u30c3\u30af\u3001\u30b9\u30af\u30ed\u30fc\u30eb)\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u30fc\u304c\u305d\u306e\u5165\u529b\u306b\u5bfe\u3057\u3066\u52d5\u4f5c\u3067\u304d\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u3068\u306e\u30ae\u30e3\u30c3\u30d7\u3092\u6e2c\u5b9a\u3057\u307e\u3059\u3002First Input Delay\u306e\u5024\u306f\u975e\u5e38\u306b\u4f4e\u304f\u3001\u9069\u5207\u306a\u30bf\u30fc\u30b2\u30c3\u30c8\u306f10\u30df\u30ea\u79d2\u3067\u3059\u304c\u300125\u30df\u30ea\u79d2\u304c\u4e00\u822c\u7684\u3067\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\"><a href=\"https:\/\/support.speedcurve.com\/understanding-metrics\/what-do-the-different-speedcurve-metrics-represent#interaction-ix-metrics-lux\"><span style=\"font-weight: 400;\">First Interaction Time<\/span><\/a><span style=\"font-weight: 400;\">\u306f\u3001\u6700\u521d\u306e\u30e6\u30fc\u30b6\u30fc\u5165\u529b\u304c\u884c\u308f\u308c\u308b\u6642\u9593\u3067\u3059\u3002\u3053\u308c\u306f\u30b5\u30a4\u30c8\u3084\u30da\u30fc\u30b8\u306e\u7a2e\u985e\u306b\u3088\u3063\u3066\u5927\u304d\u304f\u7570\u306a\u308a\u307e\u3059\u3002\u512a\u308c\u305f\u691c\u7d22\u7d50\u679c\u30da\u30fc\u30b8\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u3059\u3070\u3084\u304f\u30b9\u30af\u30ed\u30fc\u30eb\u3057\u3066\u30af\u30ea\u30c3\u30af\u3059\u308b\u305f\u3081\u3001\u6700\u521d\u306e\u5bfe\u8a71\u6642\u9593\u304c\u77ed\u304f\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u304c\u30da\u30fc\u30b8\u3092\u64cd\u4f5c\u3059\u308b\u524d\u306b\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u8aad\u307f\u53d6\u308a(\u898b\u51fa\u3057\u3001\u8a18\u4e8b)\u3092\u958b\u59cb\u3059\u308b\u305f\u3081\u3001\u30e1\u30c7\u30a3\u30a2\u30b5\u30a4\u30c8\u306e\u521d\u56de\u64cd\u4f5c\u6642\u9593\u304c\u9577\u304f\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002SpeedCurve\u3067\u306f\u3053\u308c\u3092\u300cIX time\u300d\u3068\u547c\u3073\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\"><a href=\"https:\/\/www.w3.org\/TR\/longtasks\/\"><span style=\"font-weight: 400;\">Total Long Task CPU Time<\/span><\/a><span style=\"font-weight: 400;\">\u306f\u3001\u30da\u30fc\u30b8\u5185\u3067\u767a\u751f\u3057\u305f\u3059\u3079\u3066\u306eLong task\u306e\u5408\u8a08\u3067\u3059\u3002\u300cLong task\u300d\u306f\u300150\u30df\u30ea\u79d2\u4ee5\u4e0a\u30e1\u30a4\u30f3\u30fb\u30b9\u30ec\u30c3\u30c9\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u30d6\u30e9\u30a6\u30b6\u30fb\u30a4\u30d9\u30f3\u30c8\u3067\u3059\u3002<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\u3053\u308c\u3089\u306e\u6307\u6a19\u3092\u8996\u899a\u5316\u3059\u308b\u305f\u3081\u306e\u56f3\u304c\u3042\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><img loading=\"lazy\" class=\"aligncenter size-full wp-image-2062\" src=\"http:\/\/domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/cpu-timeline-after.png\" alt=\"\" width=\"920\" height=\"206\" srcset=\"https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/cpu-timeline-after.png 920w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/cpu-timeline-after-300x67.png 300w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/cpu-timeline-after-768x172.png 768w\" sizes=\"(max-width: 920px) 100vw, 920px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\u4e0a\u306e\u56f3\u306f\u3001<\/span><a href=\"https:\/\/webpagetest.org\/\"><span style=\"font-weight: 400;\">WebPageTest<\/span><\/a><span style=\"font-weight: 400;\">\u306e(\u308f\u305a\u304b\u306b\u4fee\u6b63\u3055\u308c\u305f)CPU\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u3067\u3059\u3002Long task(CPU\u304c50\u30df\u30ea\u79d2\u4ee5\u4e0a\u30d6\u30ed\u30c3\u30af\u3055\u308c\u3066\u3044\u308b\u5834\u5408)\u306f\u8d64\u3067\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u4e0a\u306e\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u306b\u306f2\u3064\u306eLong task\u304c\u3042\u308a\u307e\u3059\u3002\u7dd1\u306f\u3001Long task\u304c\u306a\u3044\u5834\u6240\u3092\u793a\u3057\u307e\u3059\u3002\u6700\u521d\u306eCPU\u30a2\u30a4\u30c9\u30eb\u72b6\u614b\u306f3.0\u79d2\u306b\u767a\u751f\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u306e\u6700\u521d\u306e\u30dd\u30a4\u30f3\u30c8\u3067\u30015\u79d2\u9593\u306b\u9577\u3044\u30bf\u30b9\u30af\u304c\u3042\u308a\u307e\u305b\u3093(3\u79d2\u304b\u30898\u79d2)\u3002\u3053\u306e\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u3067\u306f\u3001\u30e6\u30fc\u30b6\u304c\u6700\u521d\u306b\u30da\u30fc\u30b8\u3068\u3084\u308a\u53d6\u308a\u3057\u305f\u306e\u306f5.5\u79d2\u3054\u308d\u3067\u3001\u3053\u308c\u306fFirst Interaction Time(\u307e\u305f\u306fIX Time)\u3067\u3059\u3002Long Task\u304c\u306a\u3044\u305f\u3081\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u30e6\u30fc\u30b6\u30fc\u306e\u5165\u529b\u306b8\u30df\u30ea\u79d2\u3067\u5fdc\u7b54\u3067\u304d\u3001First Input Delay(\u9752\u3067\u8868\u793a)\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u3053\u306e\u4f8b\u3067\u793a\u3059\u3088\u3046\u306b\u3001\u3053\u308c\u3089\u306e\u30e1\u30c8\u30ea\u30c3\u30af\u9593\u306e\u95a2\u4fc2\u3092\u8abf\u3079\u308b\u3053\u3068\u306f\u3001jankiness\u304c\u30e6\u30fc\u30b6\u30fc\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3001\u305d\u3057\u3066\u306a\u305c\u5f71\u97ff\u3092\u4e0e\u3048\u3066\u3044\u308b\u304b\u3092\u5224\u65ad\u3059\u308b\u305f\u3081\u306e\u9375\u3068\u306a\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u4e0a\u306e\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u3067\u306f\u3001First Interaction Time\u306fFirst CPU Idle\u306e\u5f8c\u3067\u3042\u308b\u305f\u3081\u3001First Input Delay\u304c\u975e\u5e38\u306b\u9ad8\u901f\u3067\u3042\u308b\u3053\u3068\u306f\u7406\u306b\u304b\u306a\u3063\u3066\u3044\u307e\u3059\u3002CPU\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u3082\u306e\u306f\u4f55\u3082\u306a\u3044\u3088\u3046\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u901a\u5e38\u3001First Input Delay\u306b\u3064\u3044\u3066\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u62c5\u5f53\u8005\u3068\u8a71\u3059\u3068\u304d\u306b\u306f\u3001First Input Delay\u304c\u3069\u306e\u3088\u3046\u306bLong task\u306b\u3088\u3063\u3066\u59a8\u5bb3\u3055\u308c\u3066\u3044\u308b\u304b\u306b\u7126\u70b9\u3092\u5f53\u3066\u3066\u8aac\u660e\u3057\u307e\u3059\u304c\u3001First Interaction Time\u304cFirst CPU Idle\u3088\u308a\u3082\u5927\u304d\u3044\u5834\u5408\u306f\u305d\u306e\u9650\u308a\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30b5\u30a4\u30c8\u30aa\u30fc\u30ca\u30fc\u304cFirst Input Delay\u304c\u4f55\u3092\u8a00\u3063\u3066\u3044\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3053\u3068\u3092\u77e5\u3063\u3066\u304a\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/span><\/p>\n<p><strong>First CPU Idle\u5f8c\u306e\u6700\u521d\u306e\u5bfe\u8a71\u306e\u983b\u5ea6\u306f\u3069\u308c\u304f\u3089\u3044\uff1f<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">RUM\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u304a\u5ba2\u69d8\u306e\u5834\u5408\u3001\u6700\u521d\u306e\u5bfe\u8a71\u6642\u9593\u306f\u3001\u7d0466%\u306e\u6642\u9593\u3067\u6700\u521d\u306eCPU\u30a2\u30a4\u30c9\u30eb\u304c\u767a\u751f\u3057\u305f\u5f8c\u3067\u3059\u3002\u305d\u308c\u3092\u7406\u89e3\u3057\u3001\u5fc3\u306b\u7559\u3081\u3066\u304a\u304f\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002\u3064\u307e\u308a\u3001\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u3001 [First Input Delay] \u306f [Long Task CPU] \u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306e\u5f71\u97ff\u3092\u53d7\u3051\u307e\u305b\u3093\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u6700\u521d\u306e\u5bfe\u8a71\u304c\u884c\u308f\u308c\u3066\u304b\u3089First CPU Idle\u304c\u5b9f\u884c\u3055\u308c\u308b\u307e\u3067\u306e\u6642\u9593\u306e\u7d043\u5206\u306e1\u3002\u3053\u306e\u30b7\u30ca\u30ea\u30aa\u3092\u6b21\u306e\u56f3\u306b\u793a\u3057\u307e\u3059\u3002\u3053\u306e\u4f8b\u3067\u306f\u3001\u6700\u521d\u306e\u30a4\u30f3\u30bf\u30e9\u30af\u30b7\u30e7\u30f3\u306fLong Task\u4e2d\u306b\u767a\u751f\u3059\u308b\u305f\u3081\u3001\u30e6\u30fc\u30b6\u306f\u305d\u306eLong Task\u304c\u5b8c\u4e86\u3059\u308b\u307e\u3067\u5f85\u3063\u3066\u304b\u3089\u30a4\u30f3\u30bf\u30e9\u30af\u30b7\u30e7\u30f3\u3092\u51e6\u7406\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u3001First Input Delay\u306e\u5024\u304c\u6570\u767e\u30df\u30ea\u79d2\u306b\u8df3\u306d\u4e0a\u304c\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><img loading=\"lazy\" class=\"aligncenter size-full wp-image-2063\" src=\"http:\/\/domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/cpu-timeline-during.png\" alt=\"\" width=\"920\" height=\"178\" srcset=\"https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/cpu-timeline-during.png 920w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/cpu-timeline-during-300x58.png 300w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/cpu-timeline-during-768x149.png 768w\" sizes=\"(max-width: 920px) 100vw, 920px\" \/><\/p>\n<p><i><span style=\"font-weight: 400;\">First CPU Idle\u524d\u306b\u6700\u521d\u306e\u30a4\u30f3\u30bf\u30e9\u30af\u30b7\u30e7\u30f3\u304c\u767a\u751f\u3057\u305f\u3068\u304d\u306b\u3001\u305d\u308c\u304cLong Task\u3068\u30aa\u30fc\u30d0\u30fc\u30e9\u30c3\u30d7\u3059\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u4e0a\u306e\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u3067\u306f\u3001\u30e6\u30fc\u30b6\u5165\u529b\u304c [Long task] \u3068\u885d\u7a81\u3057\u306a\u3044\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u3001\u305d\u306e\u7d50\u679c\u3001 [<\/span><\/i><span style=\"font-weight: 400;\">First Input Delay<\/span><i><span style=\"font-weight: 400;\">] \u306e\u5024\u304c\u901f\u304f\u306a\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u4e0b\u306e\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u306e\u4f8b\u3067\u306f\u3001\u591a\u304f\u306e(\u5c11\u306a\u3044)Long task\u304c\u3042\u308b\u305f\u3081\u3001First Input Delay\u306e\u5024\u3092\u5927\u304d\u304f\u3059\u308b\u3068\u3001\u3088\u308a\u4e0d\u81ea\u7136\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002Long task\u306b\u3088\u3063\u3066\u6d88\u8cbb\u3055\u308c\u308bCPU\u6642\u9593\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u91cd\u8981\u3067\u3059\u3002<\/span><\/i><\/p>\n<p><img loading=\"lazy\" class=\"aligncenter size-full wp-image-2064\" src=\"http:\/\/domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/cpu-timeline-during-many.png\" alt=\"\" width=\"920\" height=\"185\" srcset=\"https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/cpu-timeline-during-many.png 920w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/cpu-timeline-during-many-300x60.png 300w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/cpu-timeline-during-many-768x154.png 768w\" sizes=\"(max-width: 920px) 100vw, 920px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\u4e0a\u306e\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u306b\u306f\u591a\u304f\u306e [Long task] \u304c\u3042\u308a\u3001 [<\/span><span style=\"font-weight: 400;\">First Input Delay<\/span><span style=\"font-weight: 400;\">] \u306e\u5024\u304c\u5927\u304d\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001 \u300cLong task\u300d \u306f\u975e\u5e38\u306b\u5c11\u306a\u3044\u305f\u3081\u3001 \u300cFirst Input Delay\u300d \u306e\u5024\u304c\u6570\u767e\u30df\u30ea\u79d2\u3092\u8d85\u3048\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4e0b\u306e\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u306f\u5225\u306e\u8a71\u3067\u3001Long task\u306f\u4e8c\u3064\u3057\u304b\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u4e00\u3064\u306f1.5\u79d2\u8fd1\u304f\u3042\u308a\u307e\u3059\u3002(\u3053\u308c\u306f\u5b9f\u969b\u306b\u8d77\u3053\u3063\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059)\u6700\u521d\u306e\u30e6\u30fc\u30b6\u5165\u529b\u304c\u3053\u306eLong task\u3068\u91cd\u306a\u308b\u3068\u30011000ms\u3092\u8d85\u3048\u308bFirst Input Delay\u5024\u304c\u8868\u793a\u3055\u308c\u59cb\u3081\u307e\u3059\u3002Long task\u306e\u671f\u9593\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/span><\/p>\n<p><img loading=\"lazy\" class=\"aligncenter size-full wp-image-2065\" src=\"http:\/\/domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/cpu-timeline-during-big.png\" alt=\"\" width=\"920\" height=\"184\" srcset=\"https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/cpu-timeline-during-big.png 920w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/cpu-timeline-during-big-300x60.png 300w, https:\/\/www.domore.co.jp\/speedcurve\/wp-content\/uploads\/2019\/07\/cpu-timeline-during-big-768x154.png 768w\" sizes=\"(max-width: 920px) 100vw, 920px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\u6700\u5f8c\u306bFirst Input Delay\u306e\u6ce8\u610f\u3059\u3079\u304d\u70b9\u306f\u3001\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u8003\u616e\u3057\u3066\u3044\u306a\u3044\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306f\u5927\u304d\u306a\u76f2\u70b9\u3067\u3059\u3002\u4e00\u756a\u4e0a\u306e\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u3092\u898b\u308b\u3068\u3001\u304a\u305d\u3089\u304f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30da\u30fc\u30b8\u3068\u5bfe\u8a71\u3059\u308b\u306e\u30925.5\u79d2\u5f85\u3064\u306e\u306f\u3001\u91cd\u8981\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306b\u9577\u3044\u6642\u9593\u304c\u304b\u304b\u3063\u305f\u305f\u3081\u3060\u3068\u601d\u308f\u308c\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30bf\u30a4\u30e0\u304c\u6539\u5584\u3055\u308c\u308b\u3068\u3001Long task\u3068\u6d88\u8cbb\u3055\u308c\u305fCPU\u306e\u6570\u304c\u540c\u3058\u3067\u3042\u3063\u3066\u3082\u3001First Input Delay\u304c\u60aa\u5316\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3092\u6539\u5584\u3059\u308b\u3053\u3068\u3067\u3001\u30e6\u30fc\u30b6\u306e\u64cd\u4f5c\u304c\u65e9\u304f\u306a\u308a\u3001\u4ee5\u524d\u306f\u554f\u984c\u304c\u306a\u304b\u3063\u305f\u30ed\u30f3\u30b0\u30bf\u30b9\u30af\u3068\u30aa\u30fc\u30d0\u30fc\u30e9\u30c3\u30d7\u3059\u308b\u304b\u3089\u3067\u3059\u3002\u30a4\u30f3\u30bf\u30e9\u30af\u30b7\u30e7\u30f3\u30bf\u30a4\u30e0\u3068\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30bf\u30a4\u30e0\u306b\u95a2\u9023\u3059\u308bFirst Input Delay\u3092\u8ffd\u8de1\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u3053\u306e\u6700\u5f8c\u306e\u70b9\u306f\u3001Web\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u6ce8\u610f\u3059\u308b\u3053\u3068\u304c\u96e3\u3057\u3044\u7406\u7531\u3067\u3059\u30021\u3064\u306e\u30e1\u30c8\u30ea\u30c3\u30af\u306b\u7126\u70b9\u3092\u5408\u308f\u305b\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306b\u7126\u70b9\u3092\u5f53\u3066\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u306b\u95a2\u3057\u3066\u306f\u3001CPU\u3068\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u6700\u3082\u91cd\u8981\u306a\u6307\u6a19\u3067\u3059\u3002\u5e78\u3044\u306a\u3053\u3068\u306b\u3001SpeedCurve\u306eRUM\u88fd\u54c1\u3067\u3042\u308bLUX\u306b\u306f\u3001First CPU Idle\u3001First Interaction Time\u3001First Input Delay\u3001Total CPU time\u3001Long Tasks\u306e\u6570\u3001Median Long Task\u3001\u304a\u3088\u3073longst Long Task\u306b\u52a0\u3048\u3066\u3001\u591a\u304f\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30e1\u30c8\u30ea\u30c3\u30af\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002LUX\u3092\u307e\u3060\u4f7f\u7528\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001<\/span><a href=\"https:\/\/speedcurve.com\/setup\/trial\/\"><span style=\"font-weight: 400;\">\u7121\u6599\u30c8\u30e9\u30a4\u30a2\u30eb\u306b\u767b\u9332<\/span><\/a><span style=\"font-weight: 400;\">\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u3053\u308c\u3089\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u3092\u899a\u3048\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">First Interaction Time\u304cFirst CPU Idle\u5f8c\u306b\u3069\u308c\u304f\u3089\u3044\u306e\u983b\u5ea6\u3067\u767a\u751f\u3059\u308b\u304b\u3092\u628a\u63e1\u3057\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Long task\u3067\u6d88\u8cbb\u3055\u308c\u308bCPU\u30bf\u30a4\u30e0\u306e\u91cf\u3092\u628a\u63e1\u3057\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">\u6700\u3082\u9577\u3044\u30bf\u30b9\u30af\u3092\u76e3\u8996\u3057\u307e\u3059\u3002<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">[First Input Delay] \u30a4\u30f3\u30bf\u30e9\u30af\u30b7\u30e7\u30f3\u30bf\u30a4\u30e0\u3068\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306b\u95a2\u9023\u3059\u308b\u9045\u5ef6\u3067\u3059\u3002<\/span><\/li>\n<\/ul>\n\n\n<p>\u3054\u8cea\u554f\u3084\u304a\u554f\u5408\u305b\u306f\u3001<a href=\"mailto:speedcurve@domore.co.jp\">speedcurve@domore.co.jp<\/a>\u00a0\u307e\u3067\u304a\u9858\u3044\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u3010\u88dc\u8db3\u3011 Jank \uff1a \u30d6\u30e9\u30a6\u30b6\u4e0a\u3067\u64cd\u4f5c\u4e0d\u80fd\u306a\u72b6\u614b\uff08\u611f\u899a\uff09 UX \uff1a \u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\uff08\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\uff09 Steve Souders 2019\u5e745\u67081\u65e5\u6c34\u66dc\u65e5 10\u5e74\u524d\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u9ad8\u901f\u5316\u3059\u308b\u4e0a\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u6700 [&hellip;]","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[9,16],"tags":[],"_links":{"self":[{"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/posts\/2061"}],"collection":[{"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/comments?post=2061"}],"version-history":[{"count":1,"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/posts\/2061\/revisions"}],"predecessor-version":[{"id":2656,"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/posts\/2061\/revisions\/2656"}],"wp:attachment":[{"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/media?parent=2061"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/categories?post=2061"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.domore.co.jp\/speedcurve\/wp-json\/wp\/v2\/tags?post=2061"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}