{"id":296,"date":"2023-09-07T21:39:30","date_gmt":"2023-09-07T13:39:30","guid":{"rendered":"https:\/\/boostup.cf\/?p=296"},"modified":"2023-09-07T21:42:39","modified_gmt":"2023-09-07T13:42:39","slug":"false-sharing%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/189505.xyz\/?p=296","title":{"rendered":"false-sharing\u95ee\u9898"},"content":{"rendered":"<h1>\n\u8d77\u56e0<br \/>\n<\/h1>\n<p>\n\u5728\u8fdb\u884cfalse sharing\u5b9e\u9a8c\u7684\u8fc7\u7a0b\u4e2d\uff0c\u8bbf\u95ee``<code>vector&lt;int&gt;<\/code>``\u4e0d\u4f1a\u4f53\u73b0false sharing\u7684\u6548\u679c\uff0c\u81ea\u5b9a\u4e49\u4e00\u4e2aCounter\n<\/p>\n<pre><code>struct Counter{\nint cnt;\n};<\/code><\/pre>\n<p>\n\u7136\u540e\u8bbf\u95ee``<code>vector&lt;Counter&gt;<\/code>``\uff0c\u5c31\u53ef\u4ee5\u6b63\u5e38\u53d1\u73b0false sharing\u7684\u89c4\u5f8b\u3002<br \/>\n\u731c\u6d4b\u662f\u7f16\u8bd1\u5668gcc\u5f00\u4e86 -O3\u4e4b\u540e\uff0c\u5bf9\u4e8evector of int, \u76f4\u63a5\u628avector[i]\u7684\u8bbf\u95ee\u4f18\u5316\u6210\u5bc4\u5b58\u5668\uff0c\u6362\u6210``<code>vector&lt;Counter&gt;<\/code>``\uff0c\u7f16\u8bd1\u5668\u4e0d\u6562\u505a\u8fd9\u6837\u7684\u4f18\u5316\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8d77\u56e0 \u5728\u8fdb\u884cfalse sharing\u5b9e\u9a8c\u7684\u8fc7\u7a0b\u4e2d\uff0c\u8bbf\u95ee&#8220;vector&lt;int&gt;&#8220;\u4e0d\u4f1a\u4f53\u73b0fa &#8230; <a title=\"false-sharing\u95ee\u9898\" class=\"read-more\" href=\"https:\/\/189505.xyz\/?p=296\" aria-label=\"More on false-sharing\u95ee\u9898\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/189505.xyz\/index.php?rest_route=\/wp\/v2\/posts\/296"}],"collection":[{"href":"https:\/\/189505.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/189505.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/189505.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/189505.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=296"}],"version-history":[{"count":4,"href":"https:\/\/189505.xyz\/index.php?rest_route=\/wp\/v2\/posts\/296\/revisions"}],"predecessor-version":[{"id":300,"href":"https:\/\/189505.xyz\/index.php?rest_route=\/wp\/v2\/posts\/296\/revisions\/300"}],"wp:attachment":[{"href":"https:\/\/189505.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=296"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/189505.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=296"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/189505.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}