{"url":"https://moyomot.hatenablog.com/entry/2014/05/04/232538","published":"2014-05-04 23:25:38","blog_title":"\u3082\u3087\u3082\u3068\u306e\u6280\u8853\u30ce\u30fc\u30c8","image_url":null,"provider_url":"https://hatena.blog","type":"rich","categories":["Ruby","\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9"],"width":"100%","description":"Ruby\u306e\u30b9\u30ec\u30c3\u30c9\u306b\u306fGiant VM lock (GVL) (Global Interpreter lock) \u304c\u5b9f\u88c5\u3055\u308c\u3066\u304a\u308a\u3001\u540c\u6642\u306b\u5b9f\u884c\u3055\u308c\u308b \u30cd\u30a4\u30c6\u30a3\u30d6\u30b9\u30ec\u30c3\u30c9\u306f\u5e38\u306b\u3072\u3068\u3064\u3067\u3059\u3002\u306a\u306e\u3067\u3001\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u3067\u306a\u3044\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u884c\u3057\u3066\u3082\u3001\u6392\u4ed6\u5236\u5fa1\u304c\u52b9\u3044\u3066\u3044\u308b\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u3002 \u4f8b\u3048\u3070\u6b21\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068 variable = 0 flag = true threads = 5.times.map do Thread.new do if flag variable += 1 flag = false end end end threads.each(&:join) puts variable 1\u2026","title":"Ruby\u3067\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u3067\u306a\u3044\u3053\u3068\u3092\u7c21\u5358\u306b\u78ba\u8a8d\u3057\u305f\u3044","provider_name":"Hatena Blog","height":"190","author_name":"moyomot","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmoyomot.hatenablog.com%2Fentry%2F2014%2F05%2F04%2F232538\" title=\"Ruby\u3067\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u3067\u306a\u3044\u3053\u3068\u3092\u7c21\u5358\u306b\u78ba\u8a8d\u3057\u305f\u3044 - \u3082\u3087\u3082\u3068\u306e\u6280\u8853\u30ce\u30fc\u30c8\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/moyomot/","blog_url":"https://moyomot.hatenablog.com/"}