{"id":15499,"date":"2023-12-04T20:27:01","date_gmt":"2023-12-04T12:27:01","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=15499"},"modified":"2023-12-04T20:27:24","modified_gmt":"2023-12-04T12:27:24","slug":"oracle-zhong-jian-shu-sga-zhu-yao-zu-cheng-jie-gou","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/oracle-zhong-jian-shu-sga-zhu-yao-zu-cheng-jie-gou\/","title":{"rendered":"Oracle \u4e2d\u7b80\u8ff0 SGA \u4e3b\u8981\u7ec4\u6210\u7ed3\u6784\u548c\u7528\u9014\uff1f"},"content":{"rendered":"

SGA\uff08System Global Area\uff09\u662f Oracle \u6570\u636e\u5e93\u4e2d\u91cd\u8981\u7684\u5185\u5b58\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u548c\u7ba1\u7406\u6574\u4e2a\u6570\u636e\u5e93\u5b9e\u4f8b\u7684\u5171\u4eab\u6570\u636e\u548c\u63a7\u5236\u4fe1\u606f\u3002SGA \u5305\u542b\u591a\u4e2a\u7ec4\u4ef6\uff0c\u6bcf\u4e2a\u7ec4\u4ef6\u8d1f\u8d23\u4e0d\u540c\u7684\u529f\u80fd\u3002<\/p>\n

\u4e3b\u8981\u7684 SGA \u7ec4\u4ef6\u548c\u5176\u7528\u9014\u5305\u62ec\uff1a<\/p>\n

    \n
  1. \nBuffer Cache\uff08\u7f13\u51b2\u533a\u9ad8\u901f\u7f13\u5b58\uff09<\/strong>\uff1a<\/p>\n
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    • \nShared Pool\uff08\u5171\u4eab\u6c60\uff09<\/strong>\uff1a<\/p>\n
        \n
      • \u5b58\u653e\u5171\u4eab SQL \u8bed\u53e5\u3001\u89e3\u6790\u6811\u3001\u5171\u4eab\u7684 PL\/SQL \u7a0b\u5e8f\u548c\u5305\u7b49\u3002<\/li>\n
      • \u5305\u62ec Library Cache\uff08\u5e93\u9ad8\u901f\u7f13\u5b58\uff09\u548c Dictionary Cache\uff08\u5b57\u5178\u9ad8\u901f\u7f13\u5b58\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n
      • \nRedo Log Buffer\uff08\u91cd\u505a\u65e5\u5fd7\u7f13\u51b2\u533a\uff09<\/strong>\uff1a<\/p>\n
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        • \u7528\u4e8e\u6682\u65f6\u5b58\u653e\u4e8b\u52a1\u64cd\u4f5c\u7684\u91cd\u505a\u65e5\u5fd7\u4fe1\u606f\uff0c\u4ee5\u786e\u4fdd\u4e8b\u52a1\u7684\u6301\u4e45\u6027\u548c\u6062\u590d\u80fd\u529b\u3002<\/li>\n<\/ul>\n<\/li>\n
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          • \nJava Pool\uff08Java \u6c60\uff09<\/strong>\uff1a<\/p>\n
              \n
            • \u7528\u4e8e\u5b58\u50a8 Java \u5bf9\u8c61\u548c Java \u7a0b\u5e8f\u7684\u8fd0\u884c\u65f6\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n
            • \nStreams Pool\uff08\u6d41\u6c60\uff09<\/strong>\uff1a<\/p>\n
                \n
              • \u7528\u4e8e Oracle \u6570\u636e\u5e93\u7684\u6d41\u590d\u5236\uff08Stream Replication\uff09\u529f\u80fd\u3002<\/li>\n<\/ul>\n<\/li>\n
              • \nFixed SGA<\/strong>\uff1a<\/p>\n
                  \n
                • \u5b58\u50a8\u56fa\u5b9a\u5927\u5c0f\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5982\u8fdb\u7a0b\u72b6\u6001\u4fe1\u606f\u3001\u9501\u4fe1\u606f\u7b49\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

                  SGA \u7684\u4e3b\u8981\u4f5c\u7528\u662f\u63d0\u4f9b\u5168\u5c40\u5171\u4eab\u7684\u5185\u5b58\u7ed3\u6784\uff0c\u7528\u4e8e\u52a0\u901f\u6570\u636e\u5e93\u8bbf\u95ee\u3001\u63d0\u9ad8\u6027\u80fd\u3001\u786e\u4fdd\u6570\u636e\u7684\u4e00\u81f4\u6027\u548c\u6301\u4e45\u6027\u3002\u901a\u8fc7 SGA\uff0cOracle \u6570\u636e\u5e93\u80fd\u591f\u6709\u6548\u5730\u7ba1\u7406\u5185\u5b58\u8d44\u6e90\uff0c\u51cf\u5c11\u78c1\u76d8 I\/O\uff0c\u63d0\u9ad8\u7cfb\u7edf\u7684\u6574\u4f53\u6027\u80fd\u548c\u53ef\u7528\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

                  SGA\uff08System Global Area\uff09\u662f Oracle \u6570\u636e\u5e93\u4e2d\u91cd\u8981\u7684\u5185\u5b58\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u548c\u7ba1\u7406\u6574\u4e2a\u6570\u636e […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120],"tags":[],"class_list":["post-15499","post","type-post","status-publish","format-standard","hentry","category-oracel"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15499","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=15499"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15499\/revisions"}],"predecessor-version":[{"id":15500,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15499\/revisions\/15500"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=15499"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=15499"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=15499"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}