{"url":"https://faithandbrave.hateblo.jp/entry/2016/07/08/174657","blog_title":"Faith and Brave - C++\u3067\u904a\u307c\u3046","author_name":"faith_and_brave","title":"C++1z false sharing\u3068true sharing\u306e\u5236\u5fa1","image_url":null,"description":"C++1z\u304b\u3089\u3001\u4e26\u884c\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3067\u554f\u984c\u306b\u306a\u308a\u3046\u308b\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u7121\u52b9\u5316\u554f\u984c\u3092\u5236\u5fa1\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 false sharing\u306e\u5236\u5fa1 struct keep_apart { atomic<int> cat; atomic<int> dog; }; \u3053\u306e\u3088\u3046\u306a\u69cb\u9020\u4f53\u304c\u3042\u308b\u5834\u5408\u3001cat\u3068dog\u304c\u540c\u3058\u30ad\u30e3\u30c3\u30b7\u30e5\u30e9\u30a4\u30f3\u306b\u4e57\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30b9\u30ec\u30c3\u30c91\u3067\u306fcat\u5909\u6570\u3001\u30b9\u30ec\u30c3\u30c92\u3067\u306fdog\u5909\u6570\u3092\u64cd\u4f5c\u3059\u308b\u3088\u3046\u306a\u72b6\u6cc1\u3067\u3001\u305d\u308c\u305e\u308c\u304c\u5171\u901a\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u7121\u52b9\u5316\u3057\u3066\u3057\u307e\u3046\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u52a3\u5316\u306e\u554f\u984c\u304c\u8d77\u3053\u308a\u3048\u307e\u3059\u3002\u3053\u3046\u3044\u3063\u305f\u72b6\u6cc1\u3092false sharing\u3068\u8a00\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u306b\u3001<new>\u30d8\u30c3\u30c0\u306bstd:\u2026","provider_url":"https://hatena.blog","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ffaithandbrave.hateblo.jp%2Fentry%2F2016%2F07%2F08%2F174657\" title=\"C++1z false sharing\u3068true sharing\u306e\u5236\u5fa1 - Faith and Brave - C++\u3067\u904a\u307c\u3046\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2016-07-08 17:46:57","blog_url":"https://faithandbrave.hateblo.jp/","height":"190","provider_name":"Hatena Blog","categories":["C++"],"version":"1.0","author_url":"https://blog.hatena.ne.jp/faith_and_brave/","type":"rich"}