{"id":3045,"date":"2021-03-19T11:00:13","date_gmt":"2021-03-19T02:00:13","guid":{"rendered":"https:\/\/github.blog\/jp\/?p=3045"},"modified":"2021-03-18T16:29:56","modified_gmt":"2021-03-18T07:29:56","slug":"improving-large-monorepo-performance-on-github","status":"publish","type":"post","link":"https:\/\/github.blog\/jp\/2021-03-19-improving-large-monorepo-performance-on-github\/","title":{"rendered":"GitHub \u306b\u304a\u3051\u308b\u5927\u898f\u6a21\u306a\u30e2\u30ce\u30ea\u30dd\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a"},"content":{"rendered":"<p>GitHub \u306f\u3001\u6bce\u65e5 5600 \u4e07\u4eba\u4ee5\u4e0a\u306e\u958b\u767a\u8005\u306b\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3057\u30012 \u5104\u4ee5\u4e0a\u306e\u30ea\u30dd\u30b8\u30c8\u30ea\u3092\u30db\u30b9\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30ea\u30dd\u30b8\u30c8\u30ea\u306e\u3054\u304f\u4e00\u90e8\u3092\u9664\u3044\u3066\u3001\u4e16\u754c\u4e2d\u306e\u9867\u5ba2\u306b\u9a5a\u304f\u3079\u304d\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3067\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>GitHub \u306e\u3088\u3046\u306a\u5927\u898f\u6a21\u306a\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u30b3\u30fc\u30c9\u3068\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u305a\u308c\u3068\u3044\u3046\u306e\u306f\u9650\u754c\u306b\u9054\u3057\u305f\u3068\u304d\u306b\u521d\u3081\u3066\u898b\u3064\u304b\u308b\u3082\u306e\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u4f55\u5343\u4eba\u3082\u306e\u958b\u767a\u8005\u304c\u6bce\u65e5\u540c\u3058\u30ea\u30dd\u30b8\u30c8\u30ea\u3092\u66f4\u65b0\u3059\u308b\u3068\u3044\u3063\u305f\u30b1\u30fc\u30b9\u3067\u3059\u3002GitHub \u306f\u3001\u5927\u898f\u6a21\u306a\u30e2\u30ce\u30ea\u30dd\u3092\u4f7f\u7528\u3059\u308b\u4e00\u90e8\u306e\u9867\u5ba2\u304b\u3089\u3001\u30d7\u30c3\u30b7\u30e5\u64cd\u4f5c\u304c\u5931\u6557\u3059\u308b\u3068\u3044\u3063\u305f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u3068\u3044\u3046\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3092\u53d7\u3051\u307e\u3057\u305f\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001\u305d\u308c\u306f GitHub \u306b\u304a\u3044\u3066\u3082\u767a\u751f\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u00a0<code>github\/github<\/code>\u00a0\u306f GitHub \u306e\u30e2\u30ce\u30ea\u30dd\u3067\u3059\u304c\u3001\u79c1\u9054\u81ea\u8eab\u3082\u6642\u3005\u30d7\u30c3\u30b7\u30e5\u306b\u5931\u6557\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u8abf\u67fb\u3092\u958b\u59cb\u3059\u308b\u306b\u3042\u305f\u308a\u3001\u79c1\u305f\u3061\u306f\u793e\u5185\u306e\u30c1\u30fc\u30e0\u3084\u9867\u5ba2\u3068\u5354\u529b\u3057\u3066\u3001\u5f7c\u3089\u306e GitHub \u306e\u4f7f\u7528\u65b9\u6cd5\u3092\u7406\u89e3\u3057\u3066\u6700\u9069\u5316\u3057\u307e\u3057\u305f\u3002\u305d\u306e\u6d3b\u52d5\u3067\u306f\u3001\u8907\u6570\u306e\u30d7\u30c3\u30b7\u30e5\u3092\u5358\u4e00\u306e\u30d7\u30c3\u30b7\u30e5\u306b\u307e\u3068\u3081\u3066\u3001\u66f8\u304d\u8fbc\u307f\u3092\u30ed\u30c3\u30af\u3059\u308b\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306e\u6570\u3092\u6e1b\u3089\u3057\u305f\u308a\u3001\u4e0d\u5fc5\u8981\u306a\u30d7\u30c3\u30b7\u30e5\u64cd\u4f5c\u3092\u306a\u304f\u3059\u305f\u3081\u306b DevOps \u30d7\u30ed\u30bb\u30b9\u306e\u4e00\u90e8\u3092\u518d\u69cb\u7bc9\u3057\u305f\u308a\u3057\u307e\u3057\u305f\u3002\u305d\u308c\u3067\u3082\u3001\u7570\u5e38\u306a\u30ec\u30d9\u30eb\u306e\u30d7\u30c3\u30b7\u30e5\u5931\u6557\u304c\u767a\u751f\u3057\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<p><strong>\u3053\u308c\u3092\u53d7\u3051\u3066\u3001GitHub \u958b\u767a\u30c1\u30fc\u30e0\u306f Project Cyclops \u3092\u7acb\u3061\u4e0a\u3052\u307e\u3057\u305f\u3002<\/strong>\u00a0Project Cyclops \u306f\u3001Git \u30b7\u30b9\u30c6\u30e0\u90e8\u9580\uff08Git Storage\u3001Git Protocols\u3001Git Client \u306e\u5404\u30c1\u30fc\u30e0\uff09\u3068\u3001GitHub \u306e upstream \u306b\u3044\u308b Git \u30b3\u30f3\u30c8\u30ea\u30d3\u30e5\u30fc\u30bf\u30fc\u3084\u30a6\u30a7\u30d6\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u30c1\u30fc\u30e0\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u3068\u5354\u529b\u3057\u3066\u3001\u6570\u304b\u6708\u304b\u3051\u3066\u3053\u308c\u3089\u306e\u554f\u984c\u306e\u89e3\u6c7a\u7b56\u3092\u63a2\u308a\u307e\u3057\u305f\u3002\u591a\u304f\u306e\u5354\u529b\u3068\u52aa\u529b\u3092\u91cd\u306d\u3001\u4f55\u5ea6\u3082\u6539\u826f\u3092\u91cd\u306d\u305f\u7d50\u679c\u3001 \u4f55\u5343\u4eba\u3082\u306e\u30b3\u30f3\u30c8\u30ea\u30d3\u30e5\u30fc\u30bf\u30fc\u3092\u62b1\u3048\u308b\u6700\u5927\u898f\u6a21\u306e\u30e2\u30ce\u30ea\u30dd\u306e\u9867\u5ba2\u3067\u3042\u3063\u3066\u3082\u3001<strong>\u30d7\u30c3\u30b7\u30e5\u30a8\u30e9\u30fc\u3092\u307b\u307c\u30bc\u30ed\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/strong><\/p>\n<h3 id=\"%e6%94%b9%e5%96%84%e5%86%85%e5%ae%b9\">\u6539\u5584\u5185\u5bb9<a href=\"#%e6%94%b9%e5%96%84%e5%86%85%e5%ae%b9\" class=\"heading-link\" aria-label=\"\u6539\u5584\u5185\u5bb9\" data-anchorjs-icon=\"#\" style=\"padding-left: 0.375em;\"><\/a><\/h3>\n<p>Project Cyclops \u3067\u306f\u3001\u30e2\u30ce\u30ea\u30dd\u306e\u30d7\u30c3\u30b7\u30e5\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6539\u5584\u3059\u308b\u305f\u3081\u306b\u69d8\u3005\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u884c\u3044\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30d7\u30c3\u30b7\u30e5\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u51e6\u7406\u3059\u308b\u80fd\u529b\u304c\u5c11\u306a\u304f\u3068\u3082\u4e00\u6841\u5411\u4e0a\u3057\u307e\u3057\u305f\u3002<\/p>\n<h3><a id=\"user-content-\u30ea\u30dd\u30b8\u30c8\u30ea\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u6539\u5584\" class=\"anchor\" href=\"https:\/\/github.com\/github\/Japan\/blob\/a8fd2afbfe1195f7d6d0e4a0a6527ff73b0322ab\/articles\/2021-03-16-improving-large-monorepo-performance-on-github.md#%E3%83%AA%E3%83%9D%E3%82%B8%E3%83%88%E3%83%AA%E3%81%AE%E3%83%A1%E3%83%B3%E3%83%86%E3%83%8A%E3%83%B3%E3%82%B9%E3%81%AE%E6%94%B9%E5%96%84\" aria-hidden=\"true\"><\/a>\u30ea\u30dd\u30b8\u30c8\u30ea\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u6539\u5584<\/h3>\n<p>\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u3001GitHub \u306f 50 \u56de\u306e\u00a0<code>git push<\/code>\u00a0\u64cd\u4f5c\u306e\u5f8c\u3001\u3042\u308b\u3044\u306f 40MB \u306e<a href=\"https:\/\/git-scm.com\/book\/ja\/v2\/Git%E3%81%AE%E5%86%85%E5%81%B4-Packfile\" rel=\"nofollow\">\u30d1\u30c3\u30af\u3055\u308c\u3066\u3044\u306a\u3044\u30d5\u30a1\u30a4\u30eb<\/a>\u3092\u53d7\u3051\u53d6\u308b\u3068\u3001\u30ea\u30dd\u30b8\u30c8\u30ea\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002\u3053\u306e\u51e6\u7406\u3067\u306f\u3001\u30af\u30ed\u30fc\u30f3\u3084\u30d5\u30a7\u30c3\u30c1\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u9ad8\u3081\u308b\u305f\u3081\u306b\u6700\u65b0\u306e\u30d1\u30c3\u30af\u30d5\u30a1\u30a4\u30eb\u3092\u7528\u610f\u3057\u305f\u308a\u3001\u30ea\u30dd\u30b8\u30c8\u30ea\u5185\u306e\u30c7\u30fc\u30bf\u3092\u6574\u7406\u3057\u3066\u91cd\u8907\u3092\u306a\u304f\u3057\u307e\u3059\u3002\u30ea\u30dd\u30b8\u30c8\u30ea\u306e\u30b5\u30a4\u30ba\u306b\u3082\u3088\u308a\u307e\u3059\u304c\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306b\u304b\u304b\u308b\u6642\u9593\u306f\u6570\u79d2\u304b\u3089\u6570\u5206\u7a0b\u5ea6\u3067\u3059\u3002<\/p>\n<p>\u591a\u304f\u306e\u958b\u767a\u8005\u3092\u62b1\u3048\u308b\u5927\u898f\u6a21\u306a\u30e2\u30ce\u30ea\u30dd\u3067\u306f\u300150 \u56de\u306e\u30d7\u30c3\u30b7\u30e5\u64cd\u4f5c\u304c\u5b9f\u884c\u3055\u308c\u308b\u306e\u306b\u5927\u3057\u305f\u6642\u9593\u304c\u304b\u304b\u3089\u306a\u3044\u305f\u3081\u3001\u958b\u767a\u8005\u304c\u307e\u3060\u30ea\u30dd\u30b8\u30c8\u30ea\u306b\u5909\u66f4\u3092\u30d7\u30c3\u30b7\u30e5\u3057\u3066\u3044\u308b\u9593\u306b\u3082\u983b\u7e41\u306b\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u884c\u308f\u308c\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u30ea\u30dd\u30b8\u30c8\u30ea\u306e\u4e2d\u306b\u306f\u3001\u6700\u5927\u6642\u9593\u5185\u306b\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3092\u5b8c\u4e86\u3067\u304d\u306a\u304b\u3063\u305f\u3082\u306e\u304c\u591a\u6570\u3042\u308a\u307e\u3057\u305f\u3002\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306b\u5931\u6557\u3059\u308b\u3068\u3001\u30d7\u30c3\u30b7\u30e5\u3068\u53c2\u7167\u66f4\u65b0\u306e\u4e21\u65b9\u3067\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u4f4e\u4e0b\u3057\u3001\u79c1\u305f\u3061\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u518d\u3073\u30ea\u30dd\u30b8\u30c8\u30ea\u3092\u6574\u7406\u3059\u308b\u305f\u3081\u306b\u624b\u4f5c\u696d\u3067\u5bfe\u5fdc\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u00a0<strong>\u3053\u306e\u3088\u3046\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u5931\u6557\u306f\u307b\u307c\u30bc\u30ed\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/strong>\u00a0\u5177\u4f53\u7684\u306b\u306f\u3001\u00a0<code>git repack<\/code>\u00a0\u306e\u6539\u5584\u3068\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u518d\u8a66\u884c\u306e\u30b9\u30b1\u30b8\u30e5\u30fc\u30ea\u30f3\u30b0\u65b9\u6cd5\u306e\u6539\u5584\u3092\u884c\u3044\u307e\u3057\u305f\u3002<\/p>\n<h4><a id=\"user-content-git-repack-\u306e\u9ad8\u901f\u5316\" class=\"anchor\" href=\"https:\/\/github.com\/github\/Japan\/blob\/a8fd2afbfe1195f7d6d0e4a0a6527ff73b0322ab\/articles\/2021-03-16-improving-large-monorepo-performance-on-github.md#git-repack-%E3%81%AE%E9%AB%98%E9%80%9F%E5%8C%96\" aria-hidden=\"true\"><\/a><strong><code>git repack<\/code>\u00a0\u306e\u9ad8\u901f\u5316<\/strong><\/h4>\n<p>\u30ea\u30dd\u30b8\u30c8\u30ea\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u969b\u306b\u306f\u3001<code>git repack<\/code>\u00a0\u3092\u5b9f\u884c\u3057\u3066\u7de9\u3044\u30aa\u30d6\u30b8\u30a7\u30af\u30c8(loose objects)\u3092\u5727\u7e2e\u3057\u3001\u30af\u30ed\u30fc\u30f3\u3084\u30d5\u30a7\u30c3\u30c1\u306e\u9ad8\u901f\u5316\u306b\u5099\u3048\u307e\u3059\u3002<\/p>\n<p>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u96c6\u5408\u3092\u3072\u3068\u3064\u306e\u30d1\u30c3\u30af\u306b\u307e\u3068\u3081\u308b\u305f\u3081\u306b\u3001Git \u306f\u4e92\u3044\u306b\u95a2\u9023\u3059\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30da\u30a2\u3092\u63a2\u305d\u3046\u3068\u3057\u307e\u3059\u3002\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u3059\u3079\u3066\u306e\u5185\u5bb9\u3092\u305d\u306e\u307e\u307e\u4fdd\u5b58\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u3044\u304f\u3064\u304b\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u4ed6\u306e\u95a2\u9023\u3059\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u306e\u5dee\u5206\u3068\u3057\u3066\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u5dee\u5206\u3092\u898b\u3064\u3051\u308b\u306b\u306f\u6642\u9593\u304c\u304b\u304b\u308a\u3001\u3059\u3079\u3066\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4ed6\u306e\u3059\u3079\u3066\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u6bd4\u8f03\u3059\u308b\u3053\u3068\u306f\u3059\u3050\u306b\u5b9f\u73fe\u4e0d\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002Git \u306f\u3053\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u3001\u30d1\u30c3\u30af\u3055\u308c\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u914d\u5217\u4e0a\u306e\u30b9\u30e9\u30a4\u30c9\u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u7bc4\u56f2\u5185\u3067\u5dee\u5206\/\u5143\u30c7\u30fc\u30bf\u306e\u30da\u30a2\u3092\u691c\u7d22\u3057\u307e\u3059\u3002<\/p>\n<p>\u30a6\u30a3\u30f3\u30c9\u30a6\u5185\u306e\u5dee\u5206\u5019\u88dc\u306e\u4e2d\u306b\u306f\u3001\u30d2\u30e5\u30fc\u30ea\u30b9\u30c6\u30a3\u30c3\u30af\u306a\u624b\u6cd5\u3067\u3059\u3050\u306b\u5374\u4e0b\u3067\u304d\u308b\u3082\u306e\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u4e2d\u306b\u306f CPU \u8ca0\u8377\u306e\u9ad8\u3044\u6bd4\u8f03\u3092\u5fc5\u8981\u3068\u3059\u308b\u3082\u306e\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u3053\u3067\u3001\u9ad8\u4fa1\u306a\u6bd4\u8f03\u3092\u884c\u3046\u56de\u6570\u3092\u5236\u9650\u3059\u308b\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u5b9f\u88c5\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u5024\u3092\u8abf\u6574\u3059\u308b\u3053\u3068\u3067\u3001<code>git repack<\/code>\u00a0\u306e\u969b\u306b\u8cbb\u3084\u3059 CPU \u6642\u9593\u3092\u77ed\u7e2e\u3057\u3064\u3064\u3001\u7d50\u679c\u3068\u3057\u3066\u5f97\u3089\u308c\u308b\u30d1\u30c3\u30af\u30d5\u30a1\u30a4\u30eb\u306e\u30b5\u30a4\u30ba\u306f\u308f\u305a\u304b\u306a\u5897\u52a0\u306b\u7559\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002\u3053\u306e\u5909\u66f4\u306b\u3088\u308a\u3001<strong>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6642\u306e\u5931\u6557\u304c\u307b\u307c\u3059\u3079\u3066\u306a\u304f\u306a\u308a\u307e\u3057\u305f<\/strong>\u3002<\/p>\n<h4><a id=\"user-content-\u507d\u306e\u5931\u6557\u3068\u518d\u8a66\u884c\u306e\u983b\u5ea6\" class=\"anchor\" href=\"https:\/\/github.com\/github\/Japan\/blob\/a8fd2afbfe1195f7d6d0e4a0a6527ff73b0322ab\/articles\/2021-03-16-improving-large-monorepo-performance-on-github.md#%E5%81%BD%E3%81%AE%E5%A4%B1%E6%95%97%E3%81%A8%E5%86%8D%E8%A9%A6%E8%A1%8C%E3%81%AE%E9%A0%BB%E5%BA%A6\" aria-hidden=\"true\"><\/a><strong>\u507d\u306e\u5931\u6557\u3068\u518d\u8a66\u884c\u306e\u983b\u5ea6<\/strong><\/h4>\n<p>Project Cyclops \u4ee5\u524d\u306f\u3001\u3042\u308b\u30ea\u30dd\u30b8\u30c8\u30ea\u304c\u4f55\u3089\u304b\u306e\u7406\u7531\u3067\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306b\u5931\u6557\u3059\u308b\u3068\u3001\u305d\u306e\u30ea\u30dd\u30b8\u30c8\u30ea\u306b\u5bfe\u3057\u30667 \u65e5\u9593\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3092\u518d\u5b9f\u884c\u3057\u306a\u3044\u3088\u3046\u306b\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u9577\u5e74\u3001\u3053\u306e\u30ea\u30ba\u30e0\u306f\u79c1\u9054\u306e\u9867\u5ba2\u306b\u30de\u30c3\u30c1\u3057\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u8fd1\u5e74\u306e\u30e2\u30ce\u30ea\u30dd\u3067\u306f\u305d\u308c\u307b\u3069\u9577\u304f\u5f85\u3066\u307e\u305b\u3093\u3002\u79c1\u305f\u3061\u306f\u3001\u7279\u5b9a\u306e\u30ea\u30dd\u30b8\u30c8\u30ea\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u5931\u6557\uff08\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u4e2d\u306b\u5927\u91cf\u306e\u30d7\u30c3\u30b7\u30e5\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306a\u3069\uff09\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u306b\u3001\u65b0\u305f\u306b\u00a0<strong>\u507d\u306e\u5931\u6557(spurious-failure) \u3068\u3044\u3046\u72b6\u614b<\/strong>\u00a0\u3092\u5c0e\u5165\u3057\u30014 \u6642\u9593\u3054\u3068\u306b\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3092\u6700\u5927 3 \u56de\u307e\u3067\u518d\u8a66\u884c\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30d7\u30c3\u30b7\u30e5\u304c\u5c11\u306a\u3044\u304a\u5ba2\u69d8\u306e\u30aa\u30d5\u30bf\u30a4\u30e0\u306b\u518d\u8a66\u884c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u5909\u66f4\u306b\u3088\u308a\u3001\u00a0<strong>\u6b8b\u3063\u3066\u3044\u305f\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u5931\u6557\u304c\u306a\u304f\u306a\u308a<\/strong>\u00a0\u3001\u30aa\u30f3\u30b3\u30fc\u30eb\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u8ca0\u62c5\u304c\u6e1b\u308a\u307e\u3057\u305f\u3002<\/p>\n<h3><a id=\"user-content-\u4eba\u70ba\u7684\u306a\u5236\u9650\u306e\u64a4\u5ec3\" class=\"anchor\" href=\"https:\/\/github.com\/github\/Japan\/blob\/a8fd2afbfe1195f7d6d0e4a0a6527ff73b0322ab\/articles\/2021-03-16-improving-large-monorepo-performance-on-github.md#%E4%BA%BA%E7%82%BA%E7%9A%84%E3%81%AA%E5%88%B6%E9%99%90%E3%81%AE%E6%92%A4%E5%BB%83\" aria-hidden=\"true\"><\/a>\u4eba\u70ba\u7684\u306a\u5236\u9650\u306e\u64a4\u5ec3<\/h3>\n<p>\u79c1\u305f\u3061\u306e\u30d5\u30a1\u30a4\u30eb\u30b5\u30fc\u30d0\u30fc\uff08\u5b9f\u969b\u306b git \u30ea\u30dd\u30b8\u30c8\u30ea\u3092\u4fdd\u7ba1\u3059\u308b\u30b5\u30fc\u30d0\u30fc\uff09\u3067\u306f\u3001\u4f55\u5e74\u3082\u524d\u304b\u3089\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3092\u8a2d\u5b9a\u3057\u3066\u3001\u305d\u308c\u305e\u308c\u306e\u30b5\u30fc\u30d0\u30fc\u3067\u51e6\u7406\u3059\u308b\u30d7\u30c3\u30b7\u30e5\u64cd\u4f5c\u306e\u5272\u5408\u3092\u5236\u9650\u3057\u3066\u5b9f\u884c\u3092\u9045\u3089\u305b\u3066\u3044\u307e\u3057\u305f\u3002GitHub \u306f\u30de\u30eb\u30c1\u30c6\u30ca\u30f3\u30c8\u578b\u306e\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002\u3082\u3068\u3082\u3068\u3053\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u3001\u3042\u308b\u9867\u5ba2\u304b\u3089\u306e\u66f8\u304d\u8fbc\u307f\u304c\u30b5\u30fc\u30d0\u30fc\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u72ec\u5360\u3057\u3066\u3057\u307e\u3044\u3001\u305d\u306e\u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u3063\u3066\u3044\u308b\u4ed6\u306e\u9867\u5ba2\u304b\u3089\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306b\u652f\u969c\u3092\u304d\u305f\u3059\u3053\u3068\u304c\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306e\u3082\u306e\u3067\u3057\u305f\u3002\u3064\u307e\u308a\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u51e6\u7406\u80fd\u529b\u306b\u00a0<strong>\u4eba\u70ba\u7684\u306a\u4e0a\u9650<\/strong>\u00a0\u3092\u8a2d\u3051\u3066\u3044\u305f\u306e\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u5024\u3092\u5c11\u3057\u305a\u3064\u4e0a\u3052\u3066\u3044\u304d\u3001100%\u306e\u30d7\u30c3\u30b7\u30e5\u64cd\u4f5c\u3092\u5373\u6642\u306b\u5b9f\u884c\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u305f\u3068\u3053\u308d\u3001\u73fe\u5728\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3067\u5341\u5206\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5f97\u3089\u308c\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u3001\u5236\u9650\u5024\u3092\u4e0a\u3052\u305f\u3060\u3051\u3067\u306a\u304f\u3001<strong>\u30b3\u30fc\u30c9\u304b\u3089\u305d\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u524a\u9664\u3057\u307e\u3057\u305f<\/strong>\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u79c1\u305f\u3061\u306e\u30e2\u30ce\u30ea\u30dd\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u4e00\u6c17\u306b\u5411\u4e0a\u3057\u3001<strong>\u30d7\u30c3\u30b7\u30e5\u306b\u95a2\u9023\u3059\u308b\u591a\u304f\u306e\u30a8\u30e9\u30fc\u304c\u306a\u304f\u306a\u308a\u307e\u3057\u305f<\/strong>\u3002<\/p>\n<h3><a id=\"user-content-\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u306e\u4e8b\u524d\u8a08\u7b97\" class=\"anchor\" href=\"https:\/\/github.com\/github\/Japan\/blob\/a8fd2afbfe1195f7d6d0e4a0a6527ff73b0322ab\/articles\/2021-03-16-improving-large-monorepo-performance-on-github.md#%E3%83%81%E3%82%A7%E3%83%83%E3%82%AF%E3%82%B5%E3%83%A0%E3%81%AE%E4%BA%8B%E5%89%8D%E8%A8%88%E7%AE%97\" aria-hidden=\"true\"><\/a>\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u306e\u4e8b\u524d\u8a08\u7b97<\/h3>\n<p>GitHub \u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u30b5\u30fc\u30d0\u30fc\u3084\u30e9\u30c3\u30af\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u306e\u5404\u30ec\u30d9\u30eb\u3067\u306e\u969c\u5bb3\u306b\u5099\u3048\u3066\u3001\u305d\u308c\u305e\u308c\u306e\u30ea\u30dd\u30b8\u30c8\u30ea\u306b\u5bfe\u3057\u3066 5 \u3064\u306e\u30ec\u30d7\u30ea\u30ab\u3092 3 \u3064\u306e\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u306b\u307e\u305f\u304c\u3063\u3066\u66f8\u304d\u8fbc\u307f\u307e\u3059\u3002Git \u306e\u53c2\u7167\u3092\u66f4\u65b0\u3059\u308b\u969b\u306b\u306f\u3001\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u306b\u3042\u308b\u3059\u3079\u3066\u306e\u30ec\u30d7\u30ea\u30ab\u3092\u77ed\u6642\u9593\u30ed\u30c3\u30af\u3057\u3001<strong>3 \u30d5\u30a7\u30fc\u30ba\u30b3\u30df\u30c3\u30c8<\/strong>\uff083PC\uff09\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u6210\u529f\u3057\u305f\u3068\u304d\u306b\u30ed\u30c3\u30af\u3092\u89e3\u653e\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30ed\u30c3\u30af\u306e\u9593\u306b\u3001\u5404\u30ec\u30d7\u30ea\u30ab\u306e\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u3092\u8a08\u7b97\u3057\u3001\u305d\u308c\u3089\u304c\u4e00\u81f4\u3057\u3066\u3044\u308b\u3053\u3068\u3001\u305d\u3057\u3066\u3059\u3079\u3066\u306e\u30ec\u30d7\u30ea\u30ab\u304c\u540c\u671f\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30bf\u30eb\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u3092\u4f7f\u7528\u3057\u3066\u3053\u306e\u51e6\u7406\u3092\u9ad8\u901f\u5316\u3057\u3066\u304a\u308a\u3001\u901a\u5e38\u306e\u904b\u7528\u3067\u306f 50ms \u4ee5\u4e0b\u3067\u5b8c\u4e86\u3057\u307e\u3059\u304c\u3001\u4fee\u5fa9\u4f5c\u696d\u3067\u306f\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u3092\u6700\u521d\u304b\u3089\u8a08\u7b97\u3057\u76f4\u3059\u305f\u3081\u3001\u3088\u308a\u9577\u3044\u6642\u9593\u304c\u304b\u304b\u308a\u307e\u3059\u3002\u5927\u304d\u306a\u30e2\u30ce\u30ea\u30dd\u306e\u5834\u5408\u3001<strong>\u30ed\u30c3\u30af\u304c 20\u301c30 \u79d2\u3082\u4fdd\u6301\u3055\u308c\u3066\u3044\u307e\u3057\u305f<\/strong>\u3002<\/p>\n<p>\u305d\u3053\u3067\u3001\u30ed\u30c3\u30af\u3092\u304b\u3051\u308b\u524d\u306b\u3001\u3053\u308c\u3089\u306e\u30ec\u30d7\u30ea\u30ab\u306e\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u3092\u8a08\u7b97\u3059\u308b\u3088\u3046\u306b\u5909\u66f4\u3057\u307e\u3057\u305f\u3002\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u3092\u4e8b\u524d\u306b\u8a08\u7b97\u3059\u308b\u3053\u3068\u3067\u3001<strong>\u30ed\u30c3\u30af\u3059\u308b\u6642\u9593\u3092 1 \u79d2\u4ee5\u4e0b\u306b\u77ed\u7e2e\u3057<\/strong>\u3001\u3088\u308a\u591a\u304f\u306e\u66f8\u304d\u8fbc\u307f\u64cd\u4f5c\u3092\u5373\u5ea7\u306b\u6210\u529f\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<h3 id=\"%e3%81%8a%e5%ae%a2%e6%a7%98%e3%81%ae%e5%a3%b0\">\u304a\u5ba2\u69d8\u306e\u58f0<a href=\"#%e3%81%8a%e5%ae%a2%e6%a7%98%e3%81%ae%e5%a3%b0\" class=\"heading-link\" aria-label=\"\u304a\u5ba2\u69d8\u306e\u58f0\" data-anchorjs-icon=\"#\" style=\"padding-left: 0.375em;\"><\/a><\/h3>\n<p>\u5927\u898f\u6a21\u306a\u30e2\u30ce\u30ea\u30dd\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u9867\u5ba2\u306e\u4e2d\u306b\u306f\u3001git 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0 \u306b\u306a\u308a\u3001\u5b9f\u969b\u306b 12 \u6708\u306b\u5f7c\u3089\u306e\u958b\u767a\u8005\u3092\u5bfe\u8c61\u306b\u8abf\u67fb\u3057\u305f\u3068\u3053\u308d\u3001\u6700\u8fd1\u30d7\u30c3\u30b7\u30e5\u306b\u5931\u6557\u3057\u305f\u3068\u3044\u3046\u5831\u544a\u306f\u307e\u3063\u305f\u304f\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u5f7c\u3089\u306f\u79fb\u884c\u3092\u53d6\u308a\u3084\u3081\u3001\u5f15\u304d\u7d9a\u304d\u7d20\u6674\u3089\u3057\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5b9f\u611f\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30b0\u30e9\u30d5\u304c\u898b\u305f\u3044\u3067\u3059\u304b\uff1f\u4ee5\u4e0b\u306f\u3001\u3053\u308c\u3089\u306e\u304a\u5ba2\u69d8\u306e\u30b0\u30e9\u30d5\u3067\u3001\u79c1\u305f\u3061\u304c\u4fee\u6b63\u3092\u884c\u3063\u305f\u3053\u3068\u3067\u30d7\u30c3\u30b7\u30e5\u306e\u5931\u6557\u304c\u307b\u307c\u30bc\u30ed\u306b\u306a\u3063\u305f\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-3050\" src=\"https:\/\/github.blog\/jp\/wp-content\/uploads\/sites\/2\/2021\/03\/improving-large-monorepo-performance-fig-1.png?w=1024&#038;resize=1024%2C34\" alt=\"\" width=\"1024\" height=\"34\" srcset=\"https:\/\/github.blog\/jp\/wp-content\/uploads\/sites\/2\/2021\/03\/improving-large-monorepo-performance-fig-1.png?w=1024 1024w, https:\/\/github.blog\/jp\/wp-content\/uploads\/sites\/2\/2021\/03\/improving-large-monorepo-performance-fig-1.png?w=300 300w, https:\/\/github.blog\/jp\/wp-content\/uploads\/sites\/2\/2021\/03\/improving-large-monorepo-performance-fig-1.png?w=768 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<h3 id=\"%e6%ac%a1%e3%81%ae%e3%82%b9%e3%83%86%e3%83%83%e3%83%97\">\u6b21\u306e\u30b9\u30c6\u30c3\u30d7<a href=\"#%e6%ac%a1%e3%81%ae%e3%82%b9%e3%83%86%e3%83%83%e3%83%97\" class=\"heading-link\" aria-label=\"\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\" 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\u306f\u3001\u5927\u898f\u6a21\u306a\u30e2\u30ce\u30ea\u30dd\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u9867\u5ba2\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u3001\u969c\u5bb3\u3092\u306a\u304f\u3057\u3001\u30d5\u30a1\u30a4\u30eb\u30b5\u30fc\u30d0\u30fc\u306e CPU \u30b5\u30a4\u30af\u30eb\u306e\u7121\u99c4\u3092\u7701\u304d\u3001\u6700\u5927\u306e\u9867\u5ba2\u3060\u3068\u4f55\u5343\u4eba\u3082\u306e\u958b\u767a\u8005\u306e GitHub \u4f7f\u7528\u4f53\u9a13\u3092\u5927\u5e45\u306b\u6539\u5584\u3057\u307e\u3057\u305f\u3002\u3053\u3053\u306b\u306f GitHub Enterprise Server \u3092\u5229\u7528\u3057\u3066\u3044\u308b\u9867\u5ba2\u3082\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3053\u308c\u306f\u3001GitHub 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thanks<\/h3>\n<p>\u79c1\u305f\u3061\u306f\u3001GitHub \u3092\u3088\u308a\u826f\u304f\u3059\u308b\u305f\u3081\u306b\u5354\u529b\u3057\u3066\u304f\u308c\u305f\u30e2\u30ce\u30ea\u30dd\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u304a\u5ba2\u69d8\u306b\u3001\u672c\u5f53\u306b\u611f\u8b1d\u3057\u3066\u3044\u307e\u3059\u00a0\ud83d\udc9a\u00a0\u554f\u984c\u3092\u5831\u544a\u3057\u3066\u304f\u3060\u3055\u3063\u305f\u308a\u3001\u6642\u306b\u306f\u8a3a\u65ad\u3057\u3066\u304f\u3060\u3055\u3063\u305f\u308a\u3059\u308b\u3053\u3068\u3067\u3001\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002\u2728\u00a0\u672c\u5f53\u306b\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\uff01\u00a0\u2728<\/p>\n","protected":false},"excerpt":{"rendered":"<p>GitHub 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\u306e\u30e2\u30ce\u30ea\u30dd\u3067\u3059\u304c\u3001\u79c1\u9054\u81ea\u8eab\u3082\u6642\u3005\u30d7\u30c3\u30b7\u30e5\u306b\u5931\u6557\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u305d\u3053\u3067\u3001\u30e2\u30ce\u30ea\u30dd\u306e\u30d7\u30c3\u30b7\u30e5\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6539\u5584\u3059\u308b\u305f\u3081\u306b\u69d8\u3005\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u884c\u3044\u3001\u3053\u308c\u3089\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30d7\u30c3\u30b7\u30e5\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u51e6\u7406\u3059\u308b\u80fd\u529b\u304c\u5c11\u306a\u304f\u3068\u3082\u4e00\u6841\u5411\u4e0a\u3057\u307e\u3057\u305f\u3002<\/p>\n","protected":false},"author":1866,"featured_media":3049,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false},"categories":[31],"tags":[],"coauthors":[],"class_list":["post-3045","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-engineering"],"yoast_head":"<!-- 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