{"id":125621,"date":"2020-06-24T12:47:32","date_gmt":"2020-06-24T04:47:32","guid":{"rendered":"http:\/\/4563.org\/?p=125621"},"modified":"2020-06-24T12:47:32","modified_gmt":"2020-06-24T04:47:32","slug":"%e5%85%b3%e4%ba%8e-cas-%e5%ba%95%e5%b1%82","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=125621","title":{"rendered":"\u5173\u4e8e cas \u5e95\u5c42"},"content":{"rendered":"
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\u5173\u4e8e cas \u5e95\u5c42 <\/h1>\n

<\/p>\n

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\u8cc7\u6df1\u5927\u4f6c : zxc1234 <\/span> <\/i> 3<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u8bf7\u95ee<\/p>\n

cas \u5e95\u5c42\u662f\u901a\u8fc7\u9501\u5b9a\u5317\u6865\u4fe1\u53f7\u6765\u5b9e\u73b0\u7684<\/p>\n

\u5317\u6865\u4fe1\u53f7\uff1a\u7528\u6765\u4f5c\u4e3a\u201c\u6865\u201d\uff0c\u8fde\u63a5 CPU \u548c\u5185\u5b58\u3001\u663e\u5361\u4e4b\u95f4\u7684\u901a\u4fe1<\/p>\n

\u603b\u7ebf\uff1a\u82af\u7247\u7ec4\u63a7\u5236\u4e86\u6570\u636e\u4f20\u8f93\u7684\u6d41\u8f6c\uff0c\u4e5f\u5c31\u662f\u6570\u636e\u4ece\u54ea\u91cc\u5230\u54ea\u91cc\u7684\u95ee\u9898\u3002\u603b\u7ebf\u5219\u662f\u5b9e\u9645\u6570\u636e\u4f20\u8f93\u7684\u9ad8\u901f\u516c\u8def\u3002\u56e0\u6b64\uff0c\u603b\u7ebf\u901f\u5ea6\uff08 Bus Speed \uff09\u51b3\u5b9a\u4e86\u6570\u636e\u80fd\u4f20\u8f93\u5f97\u591a\u5feb\u3002<\/p>\n

1.\u8bf7\u95ee\u5e94\u8be5\u600e\u4e48\u7406\u89e3 \u9501\u5b9a\u5317\u6865\u4fe1\u53f7\u6bd4\u9501\u5b9a\u603b\u7ebf\u8f7b\u91cf\u4e00\u4e9b\uff1f<\/p>\n

2.\u8bf7\u95ee\u9501\u4f4f\u4e86\u5317\u6865\u4fe1\u53f7\uff0c\u603b\u7ebf\u8fd8\u80fd\u4f20\u8f93\u6570\u636e\u5417<\/p>\n<\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (3<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
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    \u8cc7\u6df1\u5927\u4f6c : zhangjiale <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8001\u54e5\uff0c\u4f60\u8fd9\u4e2a\u592a\u786c\u6838\u4e86\u3002\u3002\u3002<\/p>\n

    \u53ef\u80fd\u5e76\u4e0d\u662f\u4f60\u95ee\u9898\u7684\u76f4\u63a5\u89e3\u7b54\uff1a
    atomic \u5b9e\u73b0\u539f\u7406
    https:\/\/zhuanlan.zhihu.com\/p\/115355303<\/p>\n

    \u4e0a\u9762\u8bf4\uff0c\u73b0\u5728\u4e0d\u4f7f\u7528 Bus Lock \u800c\u662f\u4f7f\u7528 Cacheline Lock\uff0c\u6765\u5b9e\u73b0\u539f\u5b50\u64cd\u4f5c\u3002<\/p>\n

    \u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9~ <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
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    \u8cc7\u6df1\u5927\u4f6c : huntcool001 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u53ea\u6709\u884c\u9501(cache line lock)\u4e0d\u751f\u6548\u7684\u65f6\u5019(\u5f88\u5c11\u89c1),\u624d\u4f1a\u7528 bus lock. bus lock \u628a\u6574\u4e2a\u5185\u5b58 bus \u90fd\u9501\u4f4f\u4e86,\u6240\u4ee5\u5bf9\u6027\u80fd\u5f71\u54cd\u5f88\u5927.<\/p>\n

    \u73b0\u5728\u4e00\u822c\u90fd\u662f cache line lock. <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : zxc1234 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @zhangjiale
    @huntcool001 <\/p>\n

    \u8bf7\u95ee cache line lock \u8ddf \u9501\u5b9a\u5317\u6865\u4fe1\u53f7 \u6709\u4ec0\u4e48\u8054\u7cfb\uff1f <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n","protected":false},"excerpt":{"rendered":"

    \u5173\u4e8e cas \u5e95\u5c42 \u8cc7\u6df1\u5927\u4f6c : …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/125621"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=125621"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/125621\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=125621"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=125621"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=125621"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}