{"id":157536,"date":"2024-11-02T23:24:00","date_gmt":"2024-11-02T15:24:00","guid":{"rendered":"https:\/\/server.hk\/cnblog\/157536\/"},"modified":"2024-11-02T23:24:01","modified_gmt":"2024-11-02T15:24:01","slug":"%e9%ab%98%e6%89%8b%e8%ab%87%e6%80%8e%e6%a8%a3%e8%aa%bf%e6%95%b4-oracle-%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/157536\/","title":{"rendered":"\u9ad8\u624b\u8ac7\u600e\u6a23\u8abf\u6574 Oracle \u6578\u64da\u5eab"},"content":{"rendered":"<h1 id=\"%e9%ab%98%e6%89%8b%e8%ab%87%e6%80%8e%e6%a8%a3%e8%aa%bf%e6%95%b4-oracle-%e6%95%b8%e6%93%9a%e5%ba%ab-ZmUEBbsvzY\">\u9ad8\u624b\u8ac7\u600e\u6a23\u8abf\u6574 Oracle \u6578\u64da\u5eab<\/h1>\n<p>Oracle \u6578\u64da\u5eab\u662f\u4e00\u500b\u529f\u80fd\u5f37\u5927\u7684\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u4f01\u696d\u74b0\u5883\u4e2d\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\u548c\u696d\u52d9\u9700\u6c42\u7684\u8b8a\u5316\uff0c\u8abf\u6574\u548c\u512a\u5316 Oracle \u6578\u64da\u5eab\u7684\u6027\u80fd\u8b8a\u5f97\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u5c08\u5bb6\u5efa\u8b70\u7684\u8abf\u6574\u65b9\u6cd5\uff0c\u5e6b\u52a9\u7528\u6236\u63d0\u5347\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n<h2 id=\"1-%e7%a1%ac%e9%ab%94%e8%b3%87%e6%ba%90%e7%9a%84%e9%85%8d%e7%bd%ae-ZmUEBbsvzY\">1. \u786c\u9ad4\u8cc7\u6e90\u7684\u914d\u7f6e<\/h2>\n<p>\u5728\u8abf\u6574 Oracle \u6578\u64da\u5eab\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u78ba\u4fdd\u786c\u9ad4\u8cc7\u6e90\u7684\u914d\u7f6e\u8db3\u5920\u3002\u9019\u5305\u62ec CPU\u3001\u5167\u5b58\u548c\u5b58\u5132\u8a2d\u5099\u7684\u9078\u64c7\u3002\u4e00\u822c\u4f86\u8aaa\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u8207\u9019\u4e9b\u786c\u9ad4\u8cc7\u6e90\u7684\u914d\u7f6e\u5bc6\u5207\u76f8\u95dc\u3002<\/p>\n<ul>\n<li><strong>CPU\uff1a<\/strong>\u9078\u64c7\u591a\u6838\u5fc3\u7684\u8655\u7406\u5668\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u4e26\u884c\u8655\u7406\u80fd\u529b\u3002<\/li>\n<li><strong>\u5167\u5b58\uff1a<\/strong>\u589e\u52a0\u5167\u5b58\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u7de9\u5b58\u80fd\u529b\uff0c\u6e1b\u5c11\u78c1\u789f I\/O \u64cd\u4f5c\u3002<\/li>\n<li><strong>\u5b58\u5132\uff1a<\/strong>\u4f7f\u7528 SSD \u78c1\u789f\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u8b80\u53d6\u548c\u5beb\u5165\u7684\u901f\u5ea6\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%8f%83%e6%95%b8%e7%9a%84%e8%aa%bf%e6%95%b4-ZmUEBbsvzY\">2. \u6578\u64da\u5eab\u53c3\u6578\u7684\u8abf\u6574<\/h2>\n<p>Oracle \u6578\u64da\u5eab\u63d0\u4f9b\u4e86\u591a\u7a2e\u53c3\u6578\u4f86\u8abf\u6574\u5176\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u95dc\u9375\u53c3\u6578\u53ca\u5176\u8abf\u6574\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>SGA\uff08System Global Area\uff09\uff1a<\/strong>\u9019\u662f Oracle \u6578\u64da\u5eab\u7528\u4f86\u5b58\u5132\u5171\u4eab\u6578\u64da\u548c\u63a7\u5236\u4fe1\u606f\u7684\u5167\u5b58\u5340\u57df\u3002\u9069\u7576\u589e\u52a0 SGA \u7684\u5927\u5c0f\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002<\/li>\n<li><strong>PGA\uff08Program Global Area\uff09\uff1a<\/strong>\u9019\u662f\u7528\u65bc\u5b58\u5132\u7528\u6236\u6703\u8a71\u7684\u5167\u5b58\u5340\u57df\u3002\u6839\u64da\u7528\u6236\u7684\u9700\u6c42\u8abf\u6574 PGA \u7684\u5927\u5c0f\uff0c\u53ef\u4ee5\u6539\u5584\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<li><strong>DB_BLOCK_SIZE\uff1a<\/strong>\u9019\u662f\u6578\u64da\u5eab\u584a\u7684\u5927\u5c0f\uff0c\u6839\u64da\u61c9\u7528\u7684\u7279\u6027\u9078\u64c7\u5408\u9069\u7684\u584a\u5927\u5c0f\uff0c\u53ef\u4ee5\u63d0\u9ad8 I\/O \u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"3-%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96-ZmUEBbsvzY\">3. \u67e5\u8a62\u512a\u5316<\/h2>\n<p>\u67e5\u8a62\u6027\u80fd\u662f\u5f71\u97ff\u6574\u9ad4\u6578\u64da\u5eab\u6027\u80fd\u7684\u91cd\u8981\u56e0\u7d20\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u67e5\u8a62\u512a\u5316\u7684\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u7d22\u5f15\uff1a<\/strong>\u70ba\u5e38\u7528\u7684\u67e5\u8a62\u5b57\u6bb5\u5efa\u7acb\u7d22\u5f15\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002<\/li>\n<li><strong>\u907f\u514d\u5168\u8868\u6383\u63cf\uff1a<\/strong>\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528 WHERE \u5b50\u53e5\u4f86\u9650\u5236\u8fd4\u56de\u7684\u6578\u64da\u91cf\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5168\u8868\u6383\u63cf\u3002<\/li>\n<li><strong>\u5206\u6790\u57f7\u884c\u8a08\u5283\uff1a<\/strong>\u4f7f\u7528 EXPLAIN PLAN \u547d\u4ee4\u4f86\u5206\u6790\u67e5\u8a62\u7684\u57f7\u884c\u8a08\u5283\uff0c\u627e\u51fa\u6027\u80fd\u74f6\u9838\u3002<\/li>\n<\/ul>\n<h2 id=\"4-%e5%ae%9a%e6%9c%9f%e7%b6%ad%e8%ad%b7-ZmUEBbsvzY\">4. \u5b9a\u671f\u7dad\u8b77<\/h2>\n<p>\u5b9a\u671f\u7684\u6578\u64da\u5eab\u7dad\u8b77\u662f\u78ba\u4fdd\u5176\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u7684\u95dc\u9375\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u7dad\u8b77\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u91cd\u5efa\u7d22\u5f15\uff1a<\/strong>\u96a8\u8457\u6578\u64da\u7684\u589e\u9577\uff0c\u7d22\u5f15\u53ef\u80fd\u6703\u8b8a\u5f97\u4e0d\u518d\u9ad8\u6548\uff0c\u5b9a\u671f\u91cd\u5efa\u7d22\u5f15\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<li><strong>\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\uff1a<\/strong>\u5b9a\u671f\u66f4\u65b0\u6578\u64da\u5eab\u7684\u7d71\u8a08\u4fe1\u606f\uff0c\u4ee5\u4fbf Oracle \u53ef\u4ee5\u751f\u6210\u66f4\u512a\u5316\u7684\u57f7\u884c\u8a08\u5283\u3002<\/li>\n<li><strong>\u6e05\u7406\u7121\u7528\u6578\u64da\uff1a<\/strong>\u5b9a\u671f\u522a\u9664\u904e\u671f\u6216\u7121\u7528\u7684\u6578\u64da\uff0c\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u8ca0\u64d4\u3002<\/li>\n<\/ul>\n<h2 id=\"5-%e7%9b%a3%e6%8e%a7%e8%88%87%e8%aa%bf%e6%95%b4-ZmUEBbsvzY\">5. \u76e3\u63a7\u8207\u8abf\u6574<\/h2>\n<p>\u6301\u7e8c\u7684\u76e3\u63a7\u662f\u78ba\u4fdd\u6578\u64da\u5eab\u6027\u80fd\u7684\u5fc5\u8981\u6b65\u9a5f\u3002\u4f7f\u7528 Oracle \u63d0\u4f9b\u7684\u76e3\u63a7\u5de5\u5177\uff0c\u5982 AWR\uff08Automatic Workload Repository\uff09\u5831\u544a\uff0c\u53ef\u4ee5\u5e6b\u52a9\u8b58\u5225\u6027\u80fd\u554f\u984c\u4e26\u9032\u884c\u76f8\u61c9\u7684\u8abf\u6574\u3002<\/p>\n<h3 id=\"%e7%b5%90%e8%ab%96-ZmUEBbsvzY\">\u7d50\u8ad6<\/h3>\n<p>\u8abf\u6574 Oracle \u6578\u64da\u5eab\u662f\u4e00\u500b\u6301\u7e8c\u7684\u904e\u7a0b\uff0c\u6d89\u53ca\u786c\u9ad4\u914d\u7f6e\u3001\u53c3\u6578\u8abf\u6574\u3001\u67e5\u8a62\u512a\u5316\u3001\u5b9a\u671f\u7dad\u8b77\u548c\u6301\u7e8c\u76e3\u63a7\u7b49\u591a\u500b\u65b9\u9762\u3002\u901a\u904e\u9019\u4e9b\u65b9\u6cd5\uff0c\u4f01\u696d\u53ef\u4ee5\u6709\u6548\u63d0\u5347\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u6eff\u8db3\u4e0d\u65b7\u8b8a\u5316\u7684\u696d\u52d9\u9700\u6c42\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684 Oracle \u6578\u64da\u5eab\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u5be6\u73fe\u6700\u4f73\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9ad8\u624b\u5206\u4eab\u8abf\u6574Oracle\u6578\u64da\u5eab\u7684\u6280\u5de7\u8207\u7b56\u7565\uff0c\u63d0\u5347\u6027\u80fd\u8207\u7a69\u5b9a\u6027\uff0c\u52a9\u60a8\u512a\u5316\u6578\u64da\u7ba1\u7406\u6548\u7387\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-157536","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157536","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=157536"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157536\/revisions"}],"predecessor-version":[{"id":157537,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157536\/revisions\/157537"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=157536"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=157536"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=157536"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}