{"id":1741,"date":"2024-05-09T14:47:18","date_gmt":"2024-05-09T06:47:18","guid":{"rendered":"http:\/\/oneai.eu.org\/?p=1741"},"modified":"2024-05-09T14:48:44","modified_gmt":"2024-05-09T06:48:44","slug":"%e5%bf%ab%e9%80%9f%e7%86%9f%e6%82%89-oracle-awr-%e6%8a%a5%e5%91%8a%e8%a7%a3%e8%af%bb","status":"publish","type":"post","link":"https:\/\/oneai.eu.org\/?p=1741","title":{"rendered":"\u5feb\u901f\u719f\u6089 Oracle AWR \u62a5\u544a\u89e3\u8bfb"},"content":{"rendered":"
\n
\n

\u672c\u6587\u9762\u5411\u6ca1\u6709\u592a\u591a Oracle \u57fa\u7840\u77e5\u8bc6\uff0c\u4f46\u662f\u9700\u8981\u901a\u8fc7 AWR \u62a5\u544a\u6765\u5206\u6790\u6570\u636e\u5e93<\/a>\u6027\u80fd\u6216\u6392\u67e5\u95ee\u9898\u4eba\u5458\uff0c\u901a\u8fc7\u5bf9 AWR \u62a5\u544a\u7684\u7b80\u4ecb\uff0c\u4e86\u89e3\u5176\u5305\u542b\u7684\u4e3b\u8981\u4fe1\u606f\uff0c\u7136\u540e\u5bf9\u4e00\u4e9b\u80fd\u591f\u5e2e\u52a9\u6211\u4eec\u5206\u6790\u5b9a\u4f4d\u95ee\u9898\u7684\u7ae0\u8282\u505a\u4e00\u70b9\u7a0d\u5fae\u8be6\u7ec6\u7684\u4ecb\u7ecd\u3002\u901a\u8fc7\u9605\u8bfb\u672c\u6587\uff0c\u671f\u671b\u4f7f\u8bfb\u8005\u80fd\u591f\u5feb\u901f\u6293\u4f4f\u9605\u8bfb AWR \u62a5\u544a\u7684\u91cd\u70b9\uff0c\u4e3a\u5206\u6790\u5224\u65ad\u6570\u636e\u5e93\u6027\u80fd\u662f\u5426\u6709\u95ee\u9898\u63d0\u4f9b\u5e2e\u52a9\u3002
\n \u672c\u6587\u793a\u4f8b\u62a5\u544a\u57fa\u4e8e Oracle 11.2.0.3.0 \u7248\u672c\u751f\u6210\u3002\n <\/p>\n<\/blockquote>\n

AWR\u62a5\u544a\u7b80\u4ecb<\/h3>\n

AWR\u662fOracle 10g\u7248\u672c\u63a8\u51fa\u7684\u7279\u6027\uff0c\u5168\u79f0\u53eb\u505a Automatic Workload Repository \u5168\u81ea\u52a8\u8d1f\u8f7d\u4fe1\u606f\u5e93<\/code> \u3002Oracle\u542f\u52a8\u540e\uff0c\u4f1a\u6709\u540e\u53f0\u8fdb\u7a0b\u5b9a\u65f6\u91c7\u96c6\u5e76\u4fdd\u5b58\u7cfb\u7edf\u5feb\u7167\u4fe1\u606f\uff0c\u4e5f\u53ef\u4ee5\u624b\u5de5\u521b\u5efa\u5feb\u7167\u3002AWR\u901a\u8fc7\u5bf9\u6bd4\u4e24\u4e2a\u65f6\u95f4\u70b9\u7684\u5feb\u7167\u4fe1\u606f\uff0c\u751f\u6210\u8be5\u65f6\u95f4\u6bb5\u7684AWR\u62a5\u544a\uff0c\u5e2e\u52a9DBA\u6216\u5f00\u53d1\u4eba\u5458\u4e86\u89e3 Oracle \u6570\u636e\u5e93\u7684\u8fd0\u884c\u60c5\u51b5\u3002Oracle \u8fd8\u63d0\u4f9b\u4e86 ASH\u3001ADDM\u7b49\u5de5\u5177\uff0c\u672c\u6587\u4e0d\u8fdb\u884c\u63a2\u8ba8\u3002<\/p>\n

AWR\u62a5\u544a\u7ed3\u6784<\/h3>\n

AWR\u62a5\u544a\u57fa\u672c\u5206\u4e3a\u56db\u90e8\u5206\uff1a<\/p>\n

    \n
  • \u57fa\u672c\u4fe1\u606f\u90e8\u5206\uff0c\u5305\u62ec\u4e86DB\u5b9e\u4f8b\u3001\u4e3b\u673a\u7684\u4fe1\u606f\u4ee5\u53ca\u62a5\u544a\u91c7\u96c6\u65f6\u95f4\u6bb5\u7684\u4fe1\u606f\u3002<\/li>\n
  • Main Report\u90e8\u5206\uff0c\u7b2c\u4e00\u90e8\u5206Report Summary\u88ab\u5355\u72ec\u653e\u5728\u4e86\u57fa\u672c\u4fe1\u606f\u540e\u9762\uff0c\u5176\u4ed6\u7684\u4fe1\u606f\u5219\u653e\u5728\u6574\u4e2a\u62a5\u544a\u8f83\u540e\u7684\u4f4d\u7f6e\uff0c\u4e2a\u4eba\u89c9\u5f97\u6700\u91cd\u8981\u7684\u90e8\u5206\u662fSQL Statistcs\u3002<\/li>\n
  • RAC statistics\u90e8\u5206\uff0c\u5305\u62ecRAC\u76f8\u5173\u7684\u7edf\u8ba1\u4fe1\u606f\u3002<\/li>\n
  • Wait Event Statistics\u90e8\u5206\u3002<\/li>\n<\/ul>\n
    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n<\/figure>\n

    \u57fa\u672c\u4fe1\u606f<\/h3>\n

    \u62a5\u544a\u4e00\u5f00\u59cb\u90e8\u5206\u4e3a\u57fa\u672c\u4fe1\u606f\uff0c\u663e\u793a\u4e86DB\u5b9e\u4f8b\u3001\u4e3b\u673a\u4fe1\u606f\u3002DB Time \u6307\u6807\u53ef\u4ee5\u7528\u6765\u5224\u65ad\u6570\u636e\u5e93\u662f\u5426\u7e41\u5fd9\uff0c\u5982\u679c Elapsed \u65f6\u95f4\u4e58\u4ee5CPU\u4e2a\u6570\u5c0f\u4e8eDB Time \u8868\u793a\u6570\u636e\u5e93\u6bd4\u8f83\u7e41\u5fd9\u3002<\/p>\n

    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n<\/figure>\n

    Report Summary<\/h3>\n

    Report Summary \u5206\u4e3a8\u4e2a\u90e8\u5206\uff0c\u6700\u4e3b\u8981\u7684\u662f Load Profile\u3002<\/p>\n

    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n<\/figure>\n

    Load Profile \u4e3b\u8981\u7528\u6765\u663e\u793a\u5f53\u524d\u7cfb\u7edf\u7684\u4e00\u4e9b\u6307\u793a\u6027\u80fd\u7684\u603b\u4f53\u53c2\u6570\uff0c\u90e8\u5206\u4ecb\u7ecd\u5982\u4e0b\uff1a<\/p>\n

      \n
    • Redo Size \uff1a\u7528\u6765\u663e\u793a\u5e73\u5747\u6bcf\u79d2\u7684\u65e5\u5fd7\u5927\u5c0f\u548c\u5e73\u5747\u6bcf\u4e2a\u4e8b\u52a1\u7684\u65e5\u5fd7\u5927\u5c0f\uff0c\u6709\u65f6\u5019\u53ef\u4ee5\u7ed3\u5408 Transactions \u6bcf\u79d2\u4e8b\u52a1\u6570\uff0c\u5206\u6790\u5f53\u524d\u4e8b\u52a1\u7684\u7e41\u5fd9\u7a0b\u5ea6<\/strong>\u3002<\/li>\n
    • Logical Read\uff1a\u903b\u8f91\u8bfb\u8017CPU\uff0c\u4e3b\u9891\u548cCPU\u6838\u6570\u90fd\u5f88\u91cd\u8981\uff0c\u903b\u8f91\u8bfb\u9ad8\u5219DB CPU\u5f80\u5f80\u9ad8\uff0c\u4e5f\u5f80\u5f80\u53ef\u4ee5\u770b\u5230 latch: cache buffer chains<\/code> \u7b49\u5f85\u3002<\/li>\n
    • Physical Read\uff1a\u7269\u7406\u8bfb\u6d88\u8017IO\u8bfb\uff0c\u4f53\u73b0\u5728IOPS\u548c\u541e\u5410\u91cf\u7b49\u4e0d\u540c\u7eac\u5ea6\u4e0a\u3002\u4f46\u51cf\u5c11\u7269\u7406\u8bfb\u53ef\u80fd\u610f\u5473\u7740\u6d88\u8017\u66f4\u591aCPU\u3002<\/li>\n
    • Parses\uff1a\u89e3\u6790\u6b21\u6570\uff0c\u5305\u62ec\u8f6f\u89e3\u6790 + \u786c\u89e3\u6790\uff0c\u8f6f\u89e3\u6790\u4f18\u5316\u5f97\u4e0d\u597d\u51e0\u4e4e\u7b49\u4e8e\u6bcf\u79d2SQL\u6267\u884c\u6b21\u6570\uff0c \u5373\u6267\u884c\u89e3\u6790\u6bd41:1\u3002\u7406\u60f3\u72b6\u6001\u662f\u89e3\u6790\u4e00\u6b21\u5230\u5904\u8fd0\u884c\u3002<\/li>\n
    • Hard Parses\uff1a\u786c\u89e3\u6790\u6b21\u6570\uff0c\u6700\u597d\u5c11\u4e8e\u6ca1\u79d220\u6b21\u3002<\/li>\n<\/ul>\n
      \n

      \u6ce8\u610f Load Profile \u4e2d\u7684\u6307\u6807\u63d0\u4f9b\u4e86 Per second \u548c Per transaction \u4e24\u4e2a\u7ef4\u5ea6\u3002Per second \u4e3b\u8981\u662f\u628a\u5feb\u7167\u6293\u5230\u7684\u503c\u9664\u4ee5\u4e24\u4e2a\u5feb\u7167\u4e4b\u95f4\u7684\u79d2\u6570\u3002\u8fd9\u662f\u6211\u4eec\u7528\u6765\u5224\u65ad\u6027\u80fd\u7684\u4e3b\u8981\u7ef4\u5ea6\u3002Per transaction \u662f\u57fa\u4e8e\u4e8b\u52a1\u7684\u7ef4\u5ea6\uff0c\u4e3b\u8981\u662f\u628a\u5feb\u7167\u6293\u5230\u7684\u503c\u9664\u4ee5\u4e24\u4e2a\u5feb\u7167\u4e4b\u95f4\u7684\u4e8b\u52a1\u6570\u3002\n <\/p>\n<\/blockquote>\n

      \n
      \n
      \n
      <\/div>\n<\/div>\n<\/div>\n<\/figure>\n

      Instance Efficiency Percentages \u662f\u4e00\u4e9b\u547d\u4e2d\u7387\u6307\u6807\u3002Buffer Hit\u3001Library Hit \u7b49\u8868\u793aSGA ( System global area )\u7684\u547d\u4e2d\u7387\u3002Soft Parse \u6307\u6807\u8868\u793a\u5171\u4eab\u6c60\u7684\u8f6f\u89e3\u6790\u7387\uff0c\u5982\u679c\u5c0f\u4e8e90%\uff0c\u5c31\u8bf4\u660e\u5b58\u5728\u672a\u7ed1\u5b9a\u53d8\u91cf\u7684\u60c5\u51b5\u3002\u8fd9\u4e9b\u6307\u6807\u5e94\u5f53\u5c3d\u53ef\u80fd\u63a5\u8fd1100%\uff0c\u5982\u679c\u8fc7\u4f4e\u4e00\u5b9a\u662f\u53d1\u751f\u4e86\u6027\u80fd\u95ee\u9898\u3002<\/p>\n

        \n
      • Buffer Nowait ** \u8868\u793a\u5728\u5185\u5b58\u83b7\u5f97\u6570\u636e\u7684\u672a\u7b49\u5f85\u6bd4\u4f8b\u3002\u5728\u7f13\u51b2\u533a\u4e2d\u83b7\u53d6Buffer\u7684\u672a\u7b49\u5f85\u6bd4\u7387\u3002<\/strong>Buffer Nowait\u7684\u8fd9\u4e2a\u503c\u4e00\u822c\u9700\u8981\u5927\u4e8e99%**\u3002\u5426\u5219\u53ef\u80fd\u5b58\u5728\u4e89\u7528\uff0c\u53ef\u4ee5\u5728\u540e\u9762\u7684\u7b49\u5f85\u4e8b\u4ef6\u4e2d\u8fdb\u4e00\u6b65\u786e\u8ba4\u3002<\/li>\n
      • Buffer Hit<\/strong> \u8868\u793a\u8fdb\u7a0b\u4ece\u5185\u5b58\u4e2d\u627e\u5230\u6570\u636e\u5757\u7684\u6bd4\u7387\uff0c\u76d1\u89c6\u8fd9\u4e2a\u503c\u662f\u5426\u53d1\u751f\u91cd\u5927\u53d8\u5316\u6bd4\u8fd9\u4e2a\u503c\u672c\u8eab\u66f4\u91cd\u8981\u3002\u5bf9\u4e8e\u4e00\u822c\u7684OLTP<\/span>\u7cfb\u7edf\uff0c\u5982\u679c\u6b64\u503c\u4f4e\u4e8e80%\uff0c\u5e94\u8be5\u7ed9\u6570\u636e\u5e93\u5206\u914d\u66f4\u591a\u7684\u5185\u5b58\u3002\u6570\u636e\u5757\u5728\u6570\u636e\u7f13\u51b2\u533a\u4e2d\u7684\u547d\u4e2d\u7387\uff0c\u901a\u5e38\u5e94\u572895%\u4ee5\u4e0a\u3002<\/li>\n
      • Redo NoWait<\/strong> \u8868\u793a\u5728Log \u7f13\u51b2\u533a\u83b7\u5f97Buffer\u7684\u672a\u7b49\u5f85\u6bd4\u4f8b\u3002\u5982\u679c\u592a\u4f4e\u53ef\u8003\u8651\u589e\u52a0Log Buffer\u3002\u5f53redo buffer\u8fbe\u52301M\u65f6\u5c31\u9700\u8981\u5199\u5230redo log\u6587\u4ef6\uff0c\u6240\u4ee5\u4e00\u822c\u5f53redo buffer\u8bbe\u7f6e\u8d85\u8fc71M\uff0c\u4e0d\u592a\u53ef\u80fd\u5b58\u5728\u7b49\u5f85buffer\u7a7a\u95f4\u5206\u914d\u7684\u60c5\u51b5\u3002\u5f53\u524d\uff0c\u4e00\u822c\u8bbe\u7f6e\u4e3a2M\u7684redo buffer\uff0c\u5bf9\u4e8e\u5185\u5b58\u603b\u91cf\u6765\u8bf4\uff0c\u5e94\u8be5\u4e0d\u662f\u4e00\u4e2a\u592a\u5927\u7684\u503c\u3002<\/li>\n
      • Library Hit<\/strong> \u8868\u793aOracle\u4eceLibrary Cache\u4e2d\u68c0\u7d22\u5230\u4e00\u4e2a\u89e3\u6790\u8fc7\u7684SQL\u6216PL\/SQL\u8bed\u53e5\u7684\u6bd4\u7387\uff0c\u5f53\u5e94\u7528\u7a0b\u5e8f\u8c03\u7528SQL\u6216\u5b58\u50a8\u8fc7\u7a0b\u65f6\uff0cOracle\u68c0\u67e5Library Cache\u786e\u5b9a\u662f\u5426\u5b58\u5728\u89e3\u6790\u8fc7\u7684\u7248\u672c\uff0c\u5982\u679c\u5b58\u5728Oracle\u7acb\u5373\u6267\u884c\u8bed\u53e5\uff1b\u5982\u679c\u4e0d\u5b58\u5728Oracle\u89e3\u6790\u6b64\u8bed\u53e5\uff0c\u5e76\u5728Library Cache\u4e2d\u4e3a\u5b83\u5206\u914d\u5171\u4eabSQL\u533a\u3002\u4f4e\u7684Library Hit Ratio\u4f1a\u5bfc\u81f4\u8fc7\u591a\u7684\u89e3\u6790\uff0c\u589e\u52a0CPU\u6d88\u8017\uff0c\u964d\u4f4e\u6027\u80fd\u3002\u5982\u679cLibrary Hit Ratio\u4f4e\u4e8e90%\uff0c\u53ef\u80fd\u9700\u8981\u8c03\u5927Shared pool\u533a\u3002<\/li>\n
      • Latch Hit\uff1a<\/strong>Latch\u662f\u4e00\u79cd\u4fdd\u62a4\u5185\u5b58\u7ed3\u6784\u7684\u9501\uff0c\u53ef\u4ee5\u8ba4\u4e3a\u662fServer\u8fdb\u7a0b\u83b7\u53d6\u8bbf\u95ee\u5185\u5b58\u6570\u636e\u7ed3\u6784<\/span>\u7684\u8bb8\u53ef\u3002\u8981\u786e\u4fddLatch Hit>99%\uff0c\u5426\u5219\u610f\u5473\u7740Shared Pool latch\u4e89\u7528\uff0c\u53ef\u80fd\u7531\u4e8e\u672a\u5171\u4eab\u7684SQL\uff0c\u6216\u8005Library Cache\u592a\u5c0f\uff0c\u53ef\u4f7f\u7528\u7ed1\u5b9a\u53d8\u66f4\u6216\u8c03\u5927Shared Pool\u89e3\u51b3\u3002\u8981\u786e\u4fdd>99%\uff0c\u5426\u5219\u5b58\u5728\u4e25\u91cd\u7684\u6027\u80fd\u95ee\u9898\u3002\u5f53\u8be5\u503c\u51fa\u73b0\u95ee\u9898\u7684\u65f6\u5019\uff0c\u6211\u4eec\u53ef\u4ee5\u501f\u52a9\u540e\u9762\u7684\u7b49\u5f85\u65f6\u95f4\u548clatch\u5206\u6790\u6765\u67e5\u627e\u89e3\u51b3\u95ee\u9898\u3002<\/li>\n
      • Parse CPU to Parse Elapsd\uff1a<\/strong>\u89e3\u6790\u5b9e\u9645\u8fd0\u884c\u65f6\u95f4\/(\u89e3\u6790\u5b9e\u9645\u8fd0\u884c\u65f6\u95f4+\u89e3\u6790\u4e2d\u7b49\u5f85\u8d44\u6e90\u65f6\u95f4)\uff0c\u8d8a\u9ad8\u8d8a\u597d\u3002\u5982\u679c\u8be5\u6bd4\u7387\u4e3a100%\uff0c\u610f\u5473\u7740CPU\u7b49\u5f85\u65f6\u95f4\u4e3a0\uff0c\u6ca1\u6709\u4efb\u4f55\u7b49\u5f85\u3002<\/li>\n
      • Non-Parse CPU \uff1a<\/strong>SQL\u5b9e\u9645\u8fd0\u884c\u65f6\u95f4\/(SQL\u5b9e\u9645\u8fd0\u884c\u65f6\u95f4+SQL\u89e3\u6790\u65f6\u95f4)\uff0c\u592a\u4f4e\u8868\u793a\u89e3\u6790\u6d88\u8017\u65f6\u95f4\u8fc7\u591a\u3002\u5982\u679c\u8fd9\u4e2a\u503c\u6bd4\u8f83\u5c0f\uff0c\u8868\u793a\u89e3\u6790\u6d88\u8017\u7684CPU\u65f6\u95f4\u8fc7\u591a\u3002<\/li>\n
      • Execute to Parse\uff1a<\/strong>\u662f\u8bed\u53e5\u6267\u884c\u4e0e\u5206\u6790\u7684\u6bd4\u4f8b\uff0c\u5982\u679c\u8981SQL\u91cd\u7528\u7387\u9ad8\uff0c\u5219\u8fd9\u4e2a\u6bd4\u4f8b\u4f1a\u5f88\u9ad8\u3002\u8be5\u503c\u8d8a\u9ad8\u8868\u793a\u4e00\u6b21\u89e3\u6790\u540e\u88ab\u91cd\u590d\u6267\u884c\u7684\u6b21\u6570\u8d8a\u591a\u3002<\/li>\n
      • In-memory Sort\uff1a<\/strong>\u5728\u5185\u5b58\u4e2d\u6392\u5e8f\u7684\u6bd4\u7387\uff0c\u5982\u679c\u8fc7\u4f4e\u8bf4\u660e\u6709\u5927\u91cf\u7684\u6392\u5e8f\u5728\u4e34\u65f6\u8868\u7a7a\u95f4\u4e2d\u8fdb\u884c\u3002\u8003\u8651\u8c03\u5927PGA(10g)\u3002\u5982\u679c\u4f4e\u4e8e95%\uff0c\u53ef\u4ee5\u901a\u8fc7\u9002\u5f53\u8c03\u5927\u521d\u59cb\u5316\u53c2\u6570PGA_AGGREGATE_TARGET\u6216\u8005SORT_AREA_SIZE\u6765\u89e3\u51b3\uff0c\u6ce8\u610f\u8fd9\u4e24\u4e2a\u53c2\u6570\u8bbe\u7f6e\u4f5c\u7528\u7684\u8303\u56f4\u65f6\u4e0d\u540c\u7684\uff0cSORT_AREA_SIZE\u662f\u9488\u5bf9\u6bcf\u4e2asession\u8bbe\u7f6e\u7684\uff0cPGA_AGGREGATE_TARGET\u5219\u65f6\u9488\u5bf9\u6240\u6709\u7684sesion\u7684\u3002<\/li>\n
      • Soft Parse\uff1a<\/strong>\u8f6f\u89e3\u6790\u7684\u767e\u5206\u6bd4(Softs\/Softs+Hards)\uff0c\u8fd1\u4f3c\u5f53\u4f5csql\u5728\u5171\u4eab\u533a\u7684\u547d\u4e2d\u7387\uff0c\u592a\u4f4e\u5219\u9700\u8981\u8c03\u6574\u5e94\u7528\u4f7f\u7528\u7ed1\u5b9a\u53d8\u91cf\u3002sql\u5728\u5171\u4eab\u533a\u7684\u547d\u4e2d\u7387\uff0c\u5c0f\u4e8e<95%,\u9700\u8981\u8003\u8651\u7ed1\u5b9a\uff0c\u5982\u679c\u4f4e\u4e8e80%\uff0c\u90a3\u4e48\u5c31\u53ef\u4ee5\u8ba4\u4e3asql\u57fa\u672c\u6ca1\u6709\u88ab\u91cd\u7528\u3002<\/li>\n<\/ul>\n

        Main Report<\/h3>\n
          \n
        • Report Summary \u5728\u4e0a\u9762\u4e00\u8282\u5df2\u7ecf\u8bf4\u8fc7\uff0c\u4e0d\u518d\u8d58\u8ff0\u3002<\/li>\n
        • SQL Statistics \u4ece 11<\/code> \u4e2a\u7ef4\u5ea6\u5bf9SQL\u8fdb\u884c\u6392\u5e8f\u5e76\u7ed9\u51fa\u4e86Top SQL\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u53ef\u4ee5\u70b9\u51fb\u67e5\u770b\u5177\u4f53\u7684SQL\u5185\u5bb9\uff0c\u8fdb\u4e00\u6b65\u5206\u6790\u8c03\u4f18\u65b9\u6848\u3002\n
            \n
          • SQL ordered by Elapsed Time\u3002\u8bb0\u5f55\u4e86\u6267\u884c\u603b\u548c\u65f6\u95f4\u7684 TOP SQL(\u8bf7\u6ce8\u610f\u662f\u76d1\u63a7\u8303\u56f4\u5185\u8be5SQL\u7684\u6267\u884c\u65f6\u95f4\u603b\u548c\uff0c\u800c\u4e0d\u662f\u5355\u6b21SQL\u6267\u884c\u65f6\u95f4 Elapsed Time = CPU Time + Wait Time)\u3002<\/li>\n
          • SQL ordered by CPU Time\u3002\u8bb0\u5f55\u4e86\u6267\u884c\u5360CPU\u65f6\u95f4\u603b\u548c\u65f6\u95f4\u6700\u957f\u7684TOP SQL(\u8bf7\u6ce8\u610f\u662f\u76d1\u63a7\u8303\u56f4\u5185\u8be5SQL\u7684\u6267\u884c\u5360CPU\u65f6\u95f4\u603b\u548c\uff0c\u800c\u4e0d\u662f\u5355\u6b21SQL\u6267\u884c\u65f6\u95f4)\u3002<\/li>\n
          • SQL ordered by Gets\u3002\u8bb0\u5f55\u4e86\u6267\u884c\u5360\u603b buffer gets (\u903b\u8f91IO)\u7684TOP SQL(\u8bf7\u6ce8\u610f\u662f\u76d1\u63a7\u8303\u56f4\u5185\u8be5SQL\u7684\u6267\u884c\u5360Gets\u603b\u548c\uff0c\u800c\u4e0d\u662f\u5355\u6b21SQL\u6267\u884c\u6240\u5360\u7684Gets)\u3002<\/li>\n
          • SQL ordered by Reads\u3002\u8bb0\u5f55\u4e86\u6267\u884c\u5360\u603b\u78c1\u76d8\u7269\u7406\u8bfb(\u7269\u7406IO)\u7684TOP SQL\u3002<\/li>\n
          • SQL ordered by Executions\u3002\u8bb0\u5f55\u4e86\u6309\u7167SQL\u7684\u6267\u884c\u6b21\u6570\u6392\u5e8f\u7684TOP SQL\u3002\u8be5\u6392\u5e8f\u53ef\u4ee5\u770b\u51fa\u76d1\u63a7\u8303\u56f4\u5185\u7684SQL\u6267\u884c\u6b21\u6570\u3002<\/li>\n
          • SQL ordered by Parse Calls\u3002\u8bb0\u5f55\u4e86SQL\u7684\u8f6f\u89e3\u6790\u6b21\u6570\u7684TOP SQL\u3002<\/li>\n
          • SQL ordered by Sharable Memory\u3002\u8bb0\u5f55\u4e86SQL\u5360\u7528library cache\u7684\u5927\u5c0f\u7684TOP SQL\u3002Sharable Mem (b)\uff1a\u5360\u7528library cache\u7684\u5927\u5c0f\uff0c\u5355\u4f4d\u662fbyte\u3002<\/li>\n
          • SQL ordered by Version Count\u3002\u8bb0\u5f55\u4e86SQL\u7684\u6253\u5f00\u5b50\u6e38\u6807\u7684TOP SQL\u3002<\/li>\n
          • SQL ordered by Cluster Wait Time\u3002\u8bb0\u5f55\u4e86\u96c6\u7fa4\u7684\u7b49\u5f85\u65f6\u95f4\u7684TOP SQL\u3002<\/li>\n<\/ul>\n<\/li>\n
          • Top 10 Foreground Events by Total Wait Time\uff0c\u7b49\u5f85\u4e8b\u4ef6\u662f\u8861\u91cf\u6570\u636e\u5e93\u4f18\u5316<\/span>\u60c5\u51b5\u7684\u91cd\u8981\u6307\u6807\uff0c\u901a\u8fc7\u89c2\u5bdfEvent\u548c%DB time\u4e24\u5217\u5c31\u53ef\u4ee5\u76f4\u89c2\u770b\u51fa\u5f53\u524d\u6570\u636e\u5e93\u7684\u4e3b\u8981\u7b49\u5f85\u4e8b\u4ef6\u3002<\/li>\n<\/ul>\n

            RAC statistics<\/h3>\n

            \u8fd9\u4e00\u90e8\u5206\u6d89\u53caRAC\u8fd0\u884c\u7684\u76f8\u5173\u7edf\u8ba1\u4fe1\u606f\uff0c\u5bf9\u4e8e\u521d\u5b66\u8005\u6765\u8bf4\u4e0d\u592a\u5e38\u7528\uff0c\u672c\u6587\u6682\u4e0d\u8d58\u8ff0\u3002<\/p>\n

            Wait Event Statistics<\/h3>\n

            \u5176\u4e2d Time Model Statistics \u51e0\u4e2a\u6709\u7528\u7684\u6307\u6807\u89e3\u91ca\u5982\u4e0b\uff1a<\/p>\n

              \n
            • parse time elapsed \u4e0e hard parse elapsed time \u9700\u8981\u7ed3\u5408\u8d77\u6765\u770b\u89e3\u6790\u662f\u5426\u662f\u4e3b\u8981\u77db\u76fe\uff0c\u82e5\u662f\u5219\u91cd\u70b9\u662f\u8f6f\u89e3\u6790\u8fd8\u662f\u786c\u89e3\u6790\u3002<\/li>\n
            • sequence load elapsed time \u5e8f\u5217\u4e89\u7528<\/li>\n
            • PL\/SQL compilation elapsed time PL\/SQL\u5bf9\u8c61\u7f16\u8bd1\u7684\u8017\u65f6<\/li>\n
            • connection management call elapsed time \u6570\u636e\u5e93\u8fde\u63a5\u5efa\u7acb\u548c\u65ad\u5f00\u7684\u8017\u65f6<\/li>\n
            • failed parse elapsed time \u89e3\u6790\u5931\u8d25\u7684\u8017\u65f6<\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

              \u672c\u6587\u9762\u5411\u6ca1\u6709\u592a\u591a Oracle \u57fa\u7840\u77e5\u8bc6\uff0c\u4f46\u662f\u9700\u8981\u901a\u8fc7 AWR \u62a5\u544a\u6765\u5206\u6790\u6570\u636e\u5e93\u6027\u80fd\u6216\u6392\u67e5\u95ee\u9898\u4eba\u5458\uff0c\u901a\u8fc7\u5bf9 AWR \u62a5\u544a\u7684\u7b80\u4ecb\uff0c\u4e86\u89e3\u5176\u5305\u542b\u7684\u4e3b\u8981\u4fe1\u606f\uff0c\u7136\u540e\u5bf9\u4e00\u4e9b\u80fd\u591f\u5e2e\u52a9\u6211\u4eec\u5206\u6790\u5b9a\u4f4d\u95ee\u9898\u7684\u7ae0\u8282\u505a\u4e00\u70b9\u7a0d\u5fae\u8be6\u7ec6\u7684\u4ecb\u7ecd\u3002\u901a\u8fc7\u9605\u8bfb\u672c\u6587\uff0c\u671f\u671b\u4f7f\u8bfb\u8005\u80fd\u591f\u5feb\u901f\u6293\u4f4f\u9605\u8bfb AWR \u62a5\u544a\u7684\u91cd\u70b9\uff0c\u4e3a\u5206\u6790\u5224\u65ad\u6570\u636e\u5e93\u6027\u80fd\u662f\u5426\u6709\u95ee\u9898\u63d0\u4f9b\u5e2e\u52a9\u3002 \u672c\u6587\u793a\u4f8b\u62a5\u544a\u57fa\u4e8e Oracle 11.2.0.3.0 \u7248\u672c\u751f\u6210\u3002 AWR\u62a5\u544a\u7b80\u4ecb AWR\u662fOracle 10g\u7248\u672c\u63a8\u51fa\u7684\u7279\u6027\uff0c\u5168\u79f0\u53eb\u505a Automatic Workload Repository \u5168\u81ea\u52a8\u8d1f\u8f7d\u4fe1\u606f\u5e93 \u3002Oracle\u542f\u52a8\u540e\uff0c\u4f1a\u6709\u540e\u53f0\u8fdb\u7a0b\u5b9a\u65f6\u91c7\u96c6\u5e76\u4fdd\u5b58\u7cfb\u7edf\u5feb\u7167\u4fe1\u606f\uff0c\u4e5f\u53ef\u4ee5\u624b\u5de5\u521b\u5efa\u5feb\u7167\u3002AWR\u901a\u8fc7\u5bf9\u6bd4\u4e24\u4e2a\u65f6\u95f4\u70b9\u7684\u5feb\u7167\u4fe1\u606f\uff0c\u751f\u6210\u8be5\u65f6\u95f4\u6bb5\u7684AWR\u62a5\u544a\uff0c\u5e2e\u52a9DBA\u6216\u5f00\u53d1\u4eba\u5458\u4e86\u89e3 Oracle \u6570\u636e\u5e93\u7684\u8fd0\u884c\u60c5\u51b5\u3002Oracle \u8fd8\u63d0\u4f9b\u4e86 ASH\u3001ADDM\u7b49\u5de5\u5177\uff0c\u672c\u6587\u4e0d\u8fdb\u884c\u63a2\u8ba8\u3002 AWR\u62a5\u544a\u7ed3\u6784 AWR\u62a5\u544a\u57fa\u672c\u5206\u4e3a\u56db\u90e8\u5206\uff1a \u57fa\u672c\u4fe1\u606f\u90e8\u5206\uff0c\u5305\u62ec\u4e86DB\u5b9e\u4f8b\u3001\u4e3b\u673a\u7684\u4fe1\u606f\u4ee5\u53ca\u62a5\u544a\u91c7\u96c6\u65f6\u95f4\u6bb5\u7684\u4fe1\u606f\u3002 Main Report\u90e8\u5206\uff0c\u7b2c\u4e00\u90e8\u5206Report Summary\u88ab\u5355\u72ec\u653e\u5728\u4e86\u57fa\u672c\u4fe1\u606f\u540e\u9762\uff0c\u5176\u4ed6\u7684\u4fe1\u606f\u5219\u653e\u5728\u6574\u4e2a\u62a5\u544a\u8f83\u540e\u7684\u4f4d\u7f6e\uff0c\u4e2a\u4eba\u89c9\u5f97\u6700\u91cd\u8981\u7684\u90e8\u5206\u662fSQL Statistcs\u3002 RAC statistics\u90e8\u5206\uff0c\u5305\u62ecRAC\u76f8\u5173\u7684\u7edf\u8ba1\u4fe1\u606f\u3002 Wait Event Statistics\u90e8\u5206\u3002 \u57fa\u672c\u4fe1\u606f \u62a5\u544a\u4e00\u5f00\u59cb\u90e8\u5206\u4e3a\u57fa\u672c\u4fe1\u606f\uff0c\u663e\u793a\u4e86DB\u5b9e\u4f8b\u3001\u4e3b\u673a\u4fe1\u606f\u3002DB Time \u6307\u6807\u53ef\u4ee5\u7528\u6765\u5224\u65ad\u6570\u636e\u5e93\u662f\u5426\u7e41\u5fd9\uff0c\u5982\u679c Elapsed \u65f6\u95f4\u4e58\u4ee5CPU\u4e2a\u6570\u5c0f\u4e8eDB Time \u8868\u793a\u6570\u636e\u5e93\u6bd4\u8f83\u7e41\u5fd9\u3002 Report Summary Report Summary \u5206\u4e3a8\u4e2a\u90e8\u5206\uff0c\u6700\u4e3b\u8981\u7684\u662f Load Profile\u3002 Load Profile \u4e3b\u8981\u7528\u6765\u663e\u793a\u5f53\u524d\u7cfb\u7edf\u7684\u4e00\u4e9b\u6307\u793a\u6027\u80fd\u7684\u603b\u4f53\u53c2\u6570\uff0c\u90e8\u5206\u4ecb\u7ecd\u5982\u4e0b\uff1a Redo Size \uff1a\u7528\u6765\u663e\u793a\u5e73\u5747\u6bcf\u79d2\u7684\u65e5\u5fd7\u5927\u5c0f\u548c\u5e73\u5747\u6bcf\u4e2a\u4e8b\u52a1\u7684\u65e5\u5fd7\u5927\u5c0f\uff0c\u6709\u65f6\u5019\u53ef\u4ee5\u7ed3\u5408 Transactions \u6bcf\u79d2\u4e8b\u52a1\u6570\uff0c\u5206\u6790\u5f53\u524d\u4e8b\u52a1\u7684\u7e41\u5fd9\u7a0b\u5ea6\u3002 Logical Read\uff1a\u903b\u8f91\u8bfb\u8017CPU\uff0c\u4e3b\u9891\u548cCPU\u6838\u6570\u90fd\u5f88\u91cd\u8981\uff0c\u903b\u8f91\u8bfb\u9ad8\u5219DB CPU\u5f80\u5f80\u9ad8\uff0c\u4e5f\u5f80\u5f80\u53ef\u4ee5\u770b\u5230 latch: cache buffer chains \u7b49\u5f85\u3002 Physical Read\uff1a\u7269\u7406\u8bfb\u6d88\u8017IO\u8bfb\uff0c\u4f53\u73b0\u5728IOPS\u548c\u541e\u5410\u91cf\u7b49\u4e0d\u540c\u7eac\u5ea6\u4e0a\u3002\u4f46\u51cf\u5c11\u7269\u7406\u8bfb\u53ef\u80fd\u610f\u5473\u7740\u6d88\u8017\u66f4\u591aCPU\u3002 Parses\uff1a\u89e3\u6790\u6b21\u6570\uff0c\u5305\u62ec\u8f6f\u89e3\u6790 + \u786c\u89e3\u6790\uff0c\u8f6f\u89e3\u6790\u4f18\u5316\u5f97\u4e0d\u597d\u51e0\u4e4e\u7b49\u4e8e\u6bcf\u79d2SQL\u6267\u884c\u6b21\u6570\uff0c \u5373\u6267\u884c\u89e3\u6790\u6bd41:1\u3002\u7406\u60f3\u72b6\u6001\u662f\u89e3\u6790\u4e00\u6b21\u5230\u5904\u8fd0\u884c\u3002 Hard Parses\uff1a\u786c\u89e3\u6790\u6b21\u6570\uff0c\u6700\u597d\u5c11\u4e8e\u6ca1\u79d220\u6b21\u3002 \u6ce8\u610f Load Profile \u4e2d\u7684\u6307\u6807\u63d0\u4f9b\u4e86 Per second \u548c Per transaction \u4e24\u4e2a\u7ef4\u5ea6\u3002Per second \u4e3b\u8981\u662f\u628a\u5feb\u7167\u6293\u5230\u7684\u503c\u9664\u4ee5\u4e24\u4e2a\u5feb\u7167\u4e4b\u95f4\u7684\u79d2\u6570\u3002\u8fd9\u662f\u6211\u4eec\u7528\u6765\u5224\u65ad\u6027\u80fd\u7684\u4e3b\u8981\u7ef4\u5ea6\u3002Per transaction \u662f\u57fa\u4e8e\u4e8b\u52a1\u7684\u7ef4\u5ea6\uff0c\u4e3b\u8981\u662f\u628a\u5feb\u7167\u6293\u5230\u7684\u503c\u9664\u4ee5\u4e24\u4e2a\u5feb\u7167\u4e4b\u95f4\u7684\u4e8b\u52a1\u6570\u3002 Instance Efficiency Percentages \u662f\u4e00\u4e9b\u547d\u4e2d\u7387\u6307\u6807\u3002Buffer Hit\u3001Library Hit \u7b49\u8868\u793aSGA ( System global area )\u7684\u547d\u4e2d\u7387\u3002Soft Parse \u6307\u6807\u8868\u793a\u5171\u4eab\u6c60\u7684\u8f6f\u89e3\u6790\u7387\uff0c\u5982\u679c\u5c0f\u4e8e90%\uff0c\u5c31\u8bf4\u660e\u5b58\u5728\u672a\u7ed1\u5b9a\u53d8\u91cf\u7684\u60c5\u51b5\u3002\u8fd9\u4e9b\u6307\u6807\u5e94\u5f53\u5c3d\u53ef\u80fd\u63a5\u8fd1100%\uff0c\u5982\u679c\u8fc7\u4f4e\u4e00\u5b9a\u662f\u53d1\u751f\u4e86\u6027\u80fd\u95ee\u9898\u3002 Buffer Nowait ** \u8868\u793a\u5728\u5185\u5b58\u83b7\u5f97\u6570\u636e\u7684\u672a\u7b49\u5f85\u6bd4\u4f8b\u3002\u5728\u7f13\u51b2\u533a\u4e2d\u83b7\u53d6Buffer\u7684\u672a\u7b49\u5f85\u6bd4\u7387\u3002Buffer Nowait\u7684\u8fd9\u4e2a\u503c\u4e00\u822c\u9700\u8981\u5927\u4e8e99%**\u3002\u5426\u5219\u53ef\u80fd\u5b58\u5728\u4e89\u7528\uff0c\u53ef\u4ee5\u5728\u540e\u9762\u7684\u7b49\u5f85\u4e8b\u4ef6\u4e2d\u8fdb\u4e00\u6b65\u786e\u8ba4\u3002 Buffer Hit \u8868\u793a\u8fdb\u7a0b\u4ece\u5185\u5b58\u4e2d\u627e\u5230\u6570\u636e\u5757\u7684\u6bd4\u7387\uff0c\u76d1\u89c6\u8fd9\u4e2a\u503c\u662f\u5426\u53d1\u751f\u91cd\u5927\u53d8\u5316\u6bd4\u8fd9\u4e2a\u503c\u672c\u8eab\u66f4\u91cd\u8981\u3002\u5bf9\u4e8e\u4e00\u822c\u7684OLTP\u7cfb\u7edf\uff0c\u5982\u679c\u6b64\u503c\u4f4e\u4e8e80%\uff0c\u5e94\u8be5\u7ed9\u6570\u636e\u5e93\u5206\u914d\u66f4\u591a\u7684\u5185\u5b58\u3002\u6570\u636e\u5757\u5728\u6570\u636e\u7f13\u51b2\u533a\u4e2d\u7684\u547d\u4e2d\u7387\uff0c\u901a\u5e38\u5e94\u572895%\u4ee5\u4e0a\u3002 Redo NoWait \u8868\u793a\u5728Log \u7f13\u51b2\u533a\u83b7\u5f97Buffer\u7684\u672a\u7b49\u5f85\u6bd4\u4f8b\u3002\u5982\u679c\u592a\u4f4e\u53ef\u8003\u8651\u589e\u52a0Log Buffer\u3002\u5f53redo buffer\u8fbe\u52301M\u65f6\u5c31\u9700\u8981\u5199\u5230redo log\u6587\u4ef6\uff0c\u6240\u4ee5\u4e00\u822c\u5f53redo 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