{"id":310290,"date":"2023-04-08T09:08:56","date_gmt":"2023-04-08T01:08:56","guid":{"rendered":"https:\/\/www.idc.net\/help\/310290\/"},"modified":"2023-04-08T09:08:56","modified_gmt":"2023-04-08T01:08:56","slug":"oracle%e6%80%a7%e8%83%bd%e8%b0%83%e4%bc%98%e5%8e%9f%e5%88%99","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/310290\/","title":{"rendered":"Oracle\u6027\u80fd\u8c03\u4f18\u539f\u5219"},"content":{"rendered":"<p><strong>Oracle\u6570\u636e\u5e93<\/strong>\u662f\u7532\u9aa8\u6587\u516c\u53f8\u7684\u4e00\u6b3e\u5173\u7cfb\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u3002Oracle\u6570\u636e\u5e93<strong>\u6027\u80fd\u8c03\u4f18<\/strong>\u662f\u5b9e\u73b0Oracle\u6570\u636e\u5e93\u5728\u6b63\u5e38\u72b6\u6001\u4e0b\u8fd0\u884c\u7684\u5fc5\u8981\u6761\u4ef6\uff0cOracle\u6570\u636e\u5e93\u6027\u80fd\u7684\u8c03\u4f18\u4e5f\u662f\u8981\u9075\u5faa\u4e00\u5b9a\u7684\u539f\u5219\u7684\uff0c\u4e0b\u6587\u4e2d\u5c31\u91cd\u70b9\u4e3a\u5927\u5bb6\u603b\u7ed3\u4e86\u4e00\u4e9bOracle\u6570\u636e\u5e93\u6027\u80fd\u8c03\u4f18\u7684\u539f\u5219\u3002\u4efb\u4f55\u4e8b\u60c5\u90fd\u6709\u5b83\u7684\u6e90\u5934\uff0c\u8981\u89e3\u51b3\u95ee\u9898\uff0c\u4e5f\u5f97\u4ece\u6e90\u5934\u5f00\u59cb\uff0c\u5f71\u54cdORACLE\u6027\u80fd\u7684\u6e90\u5934\u975e\u5e38\u591a\uff0c\u4e3b\u8981\u5305\u62ec\u5982\u4e0b\u65b9\u9762\uff1a\u6570\u636e\u5e93\u7684\u786c\u4ef6\u914d\u7f6e\uff1aCPU\u3001\u5185\u5b58\u3001\u7f51\u7edc\u6761\u4ef6\u3002<\/p>\n<p>1. CPU:\u5728\u4efb\u4f55\u673a\u5668\u4e2dCPU\u7684\u6570\u636e\u5904\u7406\u80fd\u529b\u5f80\u5f80\u662f\u8861\u91cf\u8ba1\u7b97\u673a\u6027\u80fd\u7684\u4e00\u4e2a\u6807\u5fd7\uff0c\u5e76\u4e14ORACLE\u662f\u4e00\u4e2a\u63d0\u4f9b\u5e76\u884c\u80fd\u529b\u7684\u6570\u636e\u5e93\u7cfb\u7edf\uff0c\u5728CPU\u65b9\u9762\u7684\u8981\u6c42\u5c31\u66f4\u9ad8\u4e86\uff0c\u5982\u679c\u8fd0\u884c\u961f\u5217\u6570\u76ee\u8d85\u8fc7\u4e86CPU\u5904\u7406\u7684\u6570\u76ee\uff0c\u6027\u80fd\u5c31\u4f1a\u4e0b\u964d\uff0c\u6211\u4eec\u8981\u89e3\u51b3\u7684\u95ee\u9898\u5c31\u662f\u8981\u9002\u5f53\u589e\u52a0CPU\u7684\u6570\u91cf\u4e86\uff0c\u5f53\u7136\u6211\u4eec\u8fd8\u53ef\u4ee5\u5c06\u9700\u8981\u8bb8\u591a\u8d44\u6e90\u7684\u8fdb\u7a0bKILL\u6389\uff1b<\/p>\n<p>&nbsp;<\/p>\n<p>2. \u5185\u5b58\uff1a\u8861\u91cf\u673a\u5668\u6027\u80fd\u7684\u53e6\u5916\u4e00\u4e2a\u6307\u6807\u5c31\u662f\u5185\u5b58\u7684\u591a\u5c11\u4e86\uff0c\u5728ORACLE\u4e2d\u5185\u5b58\u548c\u6211\u4eec\u5728\u5efa\u6570\u636e\u5e93\u4e2d\u7684\u4ea4\u6362\u533a\u8fdb\u884c\u6570\u636e\u7684\u4ea4\u6362\uff0c\u8bfb\u6570\u636e\u65f6\uff0c\u78c1\u76d8I\/O\u5fc5\u987b\u7b49\u5f85\u7269\u7406I\/O\u64cd\u4f5c\u5b8c\u6210\uff0c\u5728\u51fa\u73b0ORACLE\u7684\u5185\u5b58\u74f6\u9888\u65f6\uff0c\u6211\u4eec***\u4e2a\u8981\u8003\u8651\u7684\u662f\u589e\u52a0\u5185\u5b58\uff0c\u7531\u4e8eI\/O\u7684\u54cd\u5e94\u65f6\u95f4\u662f\u5f71\u54cdORACLE\u6027\u80fd\u7684\u4e3b\u8981\u53c2\u6570\uff0c\u6211\u5c06\u5728\u8fd9\u65b9\u9762\u8fdb\u884c\u8be6\u7ec6\u7684\u8bb2\u89e3<\/p>\n<p>&nbsp;<\/p>\n<p>3. \u7f51\u7edc\u6761\u4ef6\uff1aNET*SQL\u8d1f\u8d23\u6570\u636e\u5728\u7f51\u7edc\u4e0a\u7684\u6765\u5f80\uff0c\u5927\u91cf\u7684SQL\u4f1a\u4ee4\u7f51\u7edc\u901f\u5ea6\u53d8\u6162\u3002\u6bd4\u598210M\u7684\u7f51\u5361\u548c100\u7684\u7f51\u5361\u5c31\u5bf9NET*SQL\u6709\u975e\u5e38\u660e\u663e\u7684\u5f71\u54cd\uff0c\u8fd8\u6709\u4ea4\u6362\u673a\u3001\u96c6\u7ebf\u5668\u7b49\u7b49\u7f51\u7edc\u8bbe\u5907\u7684\u6027\u80fd\u5bf9\u7f51\u7edc\u7684\u5f71\u54cd\u5f88\u660e\u663e\uff0c\u5efa\u8bae\u5728\u4efb\u4f55\u7f51\u7edc\u4e2d\u4e0d\u8981\u8bd5\u56fe\u75283\u4e2a\u96c6\u7ebf\u5668\u6765\u5c06\u7f51\u6bb5\u4e92\u8054\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>OS\u53c2\u6570\u7684\u8bbe\u7f6e<\/p>\n<p>&nbsp;<\/p>\n<p>\u4e0b\u8868\u7ed9\u51fa\u4e86OS\u7684\u53c2\u6570\u8bbe\u7f6e\u53ca\u8bf4\u660e\uff0cDBA\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u9700\u8981\u5bf9\u8fd9\u4e9b\u53c2\u6570\u8fdb\u884c\u8bbe\u7f6e<\/p>\n<p>&nbsp;<\/p>\n<p>\u5185\u6838\u53c2\u6570\u540d<\/p>\n<p>&nbsp;<\/p>\n<p>\u8bf4\u660e<\/p>\n<p>&nbsp;<\/p>\n<p>bufpages<\/p>\n<p>&nbsp;<\/p>\n<p>\u5bf9buffer\u7a7a\u95f4\u4e0d\u6309\u9759\u6001\u5206\u914d\uff0c\u91c7\u7528\u52a8\u6001\u5206\u914d\uff0c\u4f7fbufpages\u503c\u968fnbuf\u4e00\u8d77\u5bf9buffer\u7a7a\u95f4\u8fdb\u884c\u52a8\u6001\u5206\u914d\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>create_fastlinks<\/p>\n<p>&nbsp;<\/p>\n<p>\u5bf9HFS\u6587\u4ef6\u7cfb\u7edf\u5141\u8bb8\u5feb\u901f\u7b26\u53f7\u94fe\u63a5<\/p>\n<p>&nbsp;<\/p>\n<p>dbc_max_pct<\/p>\n<p>&nbsp;<\/p>\n<p>\u52a0\u5927***\u52a8\u6001buffer\u7a7a\u95f4\u6240\u5360\u7269\u7406\u5185\u5b58\u7684\u767e\u5206\u6bd4\uff0c\u4ee5\u6ee1\u8db3\u5e94\u7528\u7cfb\u7edf\u7684\u8bfb\u5199\u547d\u4e2d\u7387\u7684\u9700\u8981\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>dbc_min_pct<\/p>\n<p>&nbsp;<\/p>\n<p>\u8bbe\u7f6e\u6700\u5c0f\u52a8\u6001buffer\u7a7a\u95f4\u6240\u5360\u7269\u7406\u5185\u5b58\u7684\u767e\u5206\u6bd4<\/p>\n<p>&nbsp;<\/p>\n<p>desfree<\/p>\n<p>&nbsp;<\/p>\n<p>\u63d0\u9ad8\u5f00\u59cb\u4ea4\u6362\u64cd\u4f5c\u7684***\u7a7a\u95f2\u5185\u5b58\u4e0b\u9650\uff0c\u4fdd\u969c\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\uff0c\u9632\u6b62\u51fa\u73b0\u4e0d\u53ef\u9884\u89c1\u7684\u7cfb\u7edf\u5d29\u6e83\uff08Crash\uff09\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>fs_async<\/p>\n<p>&nbsp;<\/p>\n<p>\u5141\u8bb8\u8fdb\u884c\u78c1\u76d8\u5f02\u6b65\u64cd\u4f5c\uff0c\u63d0\u9ad8CPU\u548c\u78c1\u76d8\u7684\u5229\u7528\u7387<\/p>\n<p>&nbsp;<\/p>\n<p>lotsfree<\/p>\n<p>&nbsp;<\/p>\n<p>\u63d0\u9ad8\u7cfb\u7edf\u89e3\u9664\u6362\u9875\u64cd\u4f5c\u7684\u7a7a\u95f2\u5185\u5b58\u7684\u4e0a\u9650\u503c\uff0c\u4fdd\u8bc1\u5e94\u7528\u7a0b\u5e8f\u6709\u8db3\u591f\u7684\u53ef\u7528\u5185\u5b58\u7a7a\u95f4\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>maxdsiz<\/p>\n<p>&nbsp;<\/p>\n<p>\u9488\u5bf9\u7cfb\u7edf\u6570\u636e\u91cf\u5927\u7684\u7279\u70b9\uff0c\u52a0\u5927***\u6570\u636e\u6bb5\u7684\u5927\u5c0f\uff0c\u4fdd\u8bc1\u5e94\u7528\u7684\u9700\u8981\u3002\uff0832\u4f4d\uff09<\/p>\n<p>&nbsp;<\/p>\n<p>maxdsiz_64bit<\/p>\n<p>&nbsp;<\/p>\n<p>maximum process data segment size for 64_bit<\/p>\n<p>&nbsp;<\/p>\n<p>Maxssiz<\/p>\n<p>&nbsp;<\/p>\n<p>\u52a0\u5927***\u5806\u6808\u6bb5\u7684\u5927\u5c0f\u3002\uff0832_bit\uff09<\/p>\n<p>&nbsp;<\/p>\n<p>maxssiz_64bit<\/p>\n<p>&nbsp;<\/p>\n<p>\u52a0\u5927***\u5806\u6808\u6bb5\u7684\u5927\u5c0f\u3002\uff0864_bit\uff09<\/p>\n<p>&nbsp;<\/p>\n<p>Maxtsiz<\/p>\n<p>&nbsp;<\/p>\n<p>\u63d0\u9ad8***\u4ee3\u7801\u6bb5\u5927\u5c0f\uff0c\u6ee1\u8db3\u5e94\u7528\u8981\u6c42<\/p>\n<p>&nbsp;<\/p>\n<p>maxtsiz_64bit<\/p>\n<p>&nbsp;<\/p>\n<p>\u539f\u503c\u8fc7\u5927\uff0c\u5e94\u8c03\u5c0f<\/p>\n<p>&nbsp;<\/p>\n<p>Minfree<\/p>\n<p>&nbsp;<\/p>\n<p>\u63d0\u9ad8\u505c\u6b62\u4ea4\u6362\u64cd\u4f5c\u7684\u81ea\u7531\u5185\u5b58\u7684\u4e0a\u9650<\/p>\n<p>&nbsp;<\/p>\n<p>Shmem<\/p>\n<p>&nbsp;<\/p>\n<p>\u5141\u8bb8\u8fdb\u884c\u5185\u5b58\u5171\u4eab\uff0c\u4ee5\u63d0\u9ad8\u5185\u5b58\u7684\u5229\u7528\u7387<\/p>\n<p>&nbsp;<\/p>\n<p>Shmmax<\/p>\n<p>&nbsp;<\/p>\n<p>\u8bbe\u7f6e***\u5171\u4eab\u5185\u5b58\u6bb5\u7684\u5927\u5c0f\uff0c\u5b8c\u5168\u6ee1\u8db3\u76ee\u524d\u7684\u9700\u8981<\/p>\n<p>&nbsp;<\/p>\n<p>Timeslice<\/p>\n<p>&nbsp;<\/p>\n<p>\u7531\u4e8e\u7cfb\u7edf\u7684\u74f6\u9888\u4e3b\u8981\u53cd\u6620\u5728\u78c1\u76d8I\/O\u4e0a\uff0c\u56e0\u6b64\u3000\u964d\u4f4e\u65f6\u95f4\u7247\u7684\u5927\u5c0f\uff0c\u4e00\u65b9\u9762\u53ef\u907f\u514d\u56e0\u78c1\u76d8I\/O\u4e0d\u7545\u9020\u6210CPU\u7684\u7b49\u5f85\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86CPU\u7684\u7efc\u5408\u5229\u7528\u7387\u3002\u53e6\u4e00\u65b9\u9762\u51cf\u5c11\u4e86\u8fdb\u7a0b\u7684\u963b\u585e\u91cf\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>unlockable_mem<\/p>\n<p>&nbsp;<\/p>\n<p>\u63d0\u9ad8\u4e86\u4e0d\u53ef\u9501\u5185\u5b58\u7684\u5927\u5c0f\uff0c\u4f7f\u53ef\u7528\u4e8e\u6362\u9875\u548c\u4ea4\u6362\u7684\u5185\u5b58\u7a7a\u95f4\u6269\u5927\uff0c\u7528\u4ee5\u6ee1\u8db3\u7cfb\u7edf\u5bf9\u5185\u5b58\u7ba1\u7406\u7684\u8981\u6c42\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u7528\u6237SQL\u8d28\u91cf<\/p>\n<p>&nbsp;<\/p>\n<p>\u4ee5\u4e0a\u8bb2\u7684\u90fd\u662f\u786c\u4ef6\u65b9\u9762\u7684\u4e1c\u897f\uff0c\u5728\u6761\u4ef6\u6709\u9650\u7684\u6761\u4ef6\u4e0b\uff0c\u6211\u4eec\u53ef\u4ee5\u8c03\u6574\u5e94\u7528\u7a0b\u5e8f\u7684SQL\u8d28\u91cf\uff1a<\/p>\n<p>&nbsp;<\/p>\n<p>1. \u4e0d\u8981\u8fdb\u884c\u5168\u8868\u626b\u63cf\uff08Full Table Scan\uff09\uff1a\u5168\u8868\u626b\u63cf\u5bfc\u81f4\u5927\u91cf\u7684I\/O<\/p>\n<p>&nbsp;<\/p>\n<p>2. \u5c3d\u91cf\u5efa\u597d\u548c\u4f7f\u7528\u597d\u7d22\u5f15\uff1a\u5efa\u7d22\u5f15\u4e5f\u662f\u6709\u8bb2\u7a76\u7684\uff0c\u5728\u5efa\u7d22\u5f15\u65f6\uff0c\u4e5f\u4e0d\u662f\u7d22\u5f15\u8d8a\u591a\u8d8a\u597d\uff0c\u5f53\u4e00\u4e2a\u8868\u7684\u7d22\u5f15\u8fbe\u52304\u4e2a\u4ee5\u4e0a\u65f6\uff0cORACLE\u7684\u6027\u80fd\u53ef\u80fd\u8fd8\u662f\u6539\u5584\u4e0d\u4e86\uff0c\u56e0\u4e3aOLTP\u7cfb\u7edf\u6bcf\u8868\u8d85\u8fc75\u4e2a\u7d22\u5f15\u5373\u4f1a\u964d\u4f4e\u6027\u80fd\uff0c\u800c\u4e14\u5728\u4e00\u4e2asql \u4e2d\uff0c Oracle \u4ece\u4e0d\u80fd\u4f7f\u7528\u8d85\u8fc7 5\u4e2a\u7d22\u5f15\uff1b\u5f53\u6211\u4eec\u7528\u5230GROUP BY\u548cORDER BY\u65f6\uff0cORACLE\u5c31\u4f1a\u81ea\u52a8\u5bf9\u6570\u636e\u8fdb\u884c\u6392\u5e8f\uff0c\u800cORACLE\u5728INIT.ORA\u4e2d\u51b3\u5b9a\u4e86sort_area_size\u533a\u7684\u5927\u5c0f\uff0c\u5f53\u6392\u5e8f\u4e0d\u80fd\u5728\u6211\u4eec\u7ed9\u5b9a\u7684\u6392\u5e8f\u533a\u5b8c\u6210\u65f6\uff0cORACLE\u5c31\u4f1a\u5728\u78c1\u76d8\u4e2d\u8fdb\u884c\u6392\u5e8f\uff0c\u4e5f\u5c31\u662f\u6211\u4eec\u8bb2\u7684\u4e34\u65f6\u8868\u7a7a\u95f4\u4e2d\u6392\u5e8f\uff0c \u8fc7\u591a\u7684\u78c1\u76d8\u6392\u5e8f\u5c06\u4f1a\u4ee4 free buffer waits \u7684\u503c\u53d8\u9ad8\uff0c\u800c\u8fd9\u4e2a\u533a\u95f4\u5e76\u4e0d\u53ea\u662f\u7528\u4e8e\u6392\u5e8f\u7684\uff0c\u5bf9\u4e8e\u5f00\u53d1\u4eba\u5458\u6211\u63d0\u51fa\u5982\u4e0b\u5fe0\u544a\uff1a<\/p>\n<p>&nbsp;<\/p>\n<p>1\uff09\u3001select,update,delete \u8bed\u53e5\u4e2d\u7684\u5b50\u67e5\u8be2\u5e94\u5f53\u6709\u89c4\u5f8b\u5730\u67e5\u627e\u5c11\u4e8e20%\u7684\u8868\u884c\u3002\u5982\u679c\u4e00\u4e2a\u8bed\u53e5\u67e5\u627e\u7684\u884c\u6570\u8d85\u8fc7\u603b\u884c\u6570\u768420%,\u5b83\u5c06\u4e0d\u80fd\u901a\u8fc7\u4f7f\u7528\u7d22\u5f15\u83b7\u5f97\u6027\u80fd\u4e0a\u7684\u63d0\u9ad8\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>2\uff09\u3001\u7d22\u5f15\u53ef\u80fd\u4ea7\u751f\u788e\u7247\uff0c\u56e0\u4e3a\u8bb0\u5f55\u4ece\u8868\u4e2d\u5220\u9664\u65f6\uff0c\u76f8\u5e94\u4e5f\u4ece\u8868\u7684\u7d22\u5f15\u4e2d\u5220\u9664\u3002\u8868\u91ca\u653e\u7684\u7a7a\u95f4\u53ef\u4ee5\u518d\u7528\uff0c\u800c\u7d22\u5f15\u91ca\u653e\u7684\u7a7a\u95f4\u5374\u4e0d\u80fd\u518d\u7528\u3002\u9891\u7e41\u8fdb\u884c\u5220\u9664\u64cd\u4f5c\u7684\u88ab\u7d22\u5f15\u7684\u8868\uff0c\u5e94\u5f53\u9636\u6bb5\u6027\u5730\u91cd\u5efa\u7d22\u5f15\uff0c\u4ee5\u907f\u514d\u5728\u7d22\u5f15\u4e2d\u9020\u6210\u7a7a\u95f4\u788e\u7247\uff0c\u5f71\u54cd\u6027\u80fd\u3002\u5728\u8bb8\u53ef\u7684\u6761\u4ef6\u4e0b\uff0c\u4e5f\u53ef\u4ee5\u9636\u6bb5\u6027\u5730truncate\u8868\uff0ctruncate\u547d\u4ee4\u5220\u9664\u8868\u4e2d\u6240\u6709\u8bb0\u5f55\uff0c\u4e5f\u5220\u9664\u7d22\u5f15\u788e\u7247\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>3\uff09\u3001\u5728\u4f7f\u7528\u7d22\u5f15\u65f6\u4e00\u5b9a\u8981\u6309\u7d22\u5f15\u5bf9\u5e94\u5b57\u6bb5\u7684\u987a\u5e8f\u8fdb\u884c\u5f15\u7528\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>4\uff09\u3001\u7528\uff08+\uff09\u6bd4\u7528NOT IN\u66f4\u6709\u6548\u7387\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u964d\u4f4eORACLE\u7684\u7ade\u4e89\uff1a<\/p>\n<p>&nbsp;<\/p>\n<p>\u5148\u8bb2\u51e0\u4e2aORACLE\u7684\u51e0\u4e2a\u53c2\u6570\uff0c\u8fd9\u51e0\u4e2a\u53c2\u6570\u5173\u7cfb\u5230ORACLE\u7684\u7ade\u4e89\uff1a<\/p>\n<p>&nbsp;<\/p>\n<p>1\uff09\u3001freelists \u548c freelist \u7ec4\uff1a\u4ed6\u4eec\u8d1f\u8d23ORACLE\u7684\u5904\u7406\u8868\u548c\u7d22\u5f15\u7684\u7a7a\u95f4\u7ba1\u7406\uff1b<\/p>\n<p>&nbsp;<\/p>\n<p>2\uff09\u3001pctfree \u53ca pctused:\u8be5\u53c2\u6570\u51b3\u5b9a\u4e86freelists \u548c freelist \u7ec4\u7684\u884c\u4e3a\uff0cpctfree \u548cpctused \u53c2\u6570\u7684\u552f\u4e00\u76ee\u7684\u5c31\u662f\u4e3a\u4e86\u63a7\u5236\u5757\u5982\u4f55\u5728 freelists \u4e2d\u8fdb\u51fa<\/p>\n<p>&nbsp;<\/p>\n<p>\u8bbe\u7f6e\u597dpctfree \u53ca pctused\u5bf9\u5757\u5728freelists\u7684\u79fb\u8d70\u548c\u8bfb\u53d6\u5f88\u91cd\u8981\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u5176\u4ed6\u53c2\u6570\u7684\u8bbe\u7f6e<\/p>\n<p>&nbsp;<\/p>\n<p>1\uff09\u3001\u5305\u62ecSGA\u533a\uff08\u7cfb\u7edf\u5168\u5c40\u533a\uff09\uff1a\u7cfb\u7edf\u5168\u5c40\u533a\uff08SGA\uff09\u662f\u4e00\u4e2a\u5206\u914d\u7ed9Oracle \u7684\u5305\u542b\u4e00\u4e2a Oracle \u5b9e\u4f8b\u7684\u6570\u636e\u5e93\u7684\u63a7\u5236\u4fe1\u606f\u5185\u5b58\u6bb5\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u4e3b\u8981\u5305\u62ec\u6570\u636e\u5e93\u9ad8\u901f\u7f13\u5b58\uff08the database buffer cache\uff09\uff0c<\/p>\n<p>&nbsp;<\/p>\n<p>\u91cd\u6f14\u65e5\u5fd7\u7f13\u5b58\uff08the redo log buffer\uff09\uff0c<\/p>\n<p>&nbsp;<\/p>\n<p>\u5171\u4eab\u6c60\uff08the shared pool\uff09\uff0c<\/p>\n<p>&nbsp;<\/p>\n<p>\u6570\u636e\u5b57\u5178\u7f13\u5b58\uff08the data dictionary cache\uff09\u4ee5\u53ca\u5176\u5b83\u5404\u65b9\u9762\u7684\u4fe1\u606f<\/p>\n<p>&nbsp;<\/p>\n<p>2\uff09\u3001db_block_buffers\uff08\u6570\u636e\u9ad8\u901f\u7f13\u51b2\u533a\uff09\u8bbf\u95ee\u8fc7\u7684\u6570\u636e\u90fd\u653e\u5728\u8fd9\u4e00\u7247\u5185\u5b58\u533a\u57df\uff0c\u8be5\u53c2\u6570\u8d8a\u5927\uff0cOracle\u5728\u5185\u5b58\u4e2d\u627e\u5230\u76f8\u540c\u6570\u636e\u7684\u53ef\u80fd\u6027\u5c31\u8d8a\u5927\uff0c\u4e5f\u5373\u52a0\u5feb\u4e86\u67e5\u8be2\u901f\u5ea6\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>3\uff09\u3001share_pool_size \uff08SQL\u5171\u4eab\u7f13\u51b2\u6c60\uff09\uff1a\u8be5\u53c2\u6570\u662f\u5e93\u9ad8\u901f\u7f13\u5b58\u548c\u6570\u636e\u5b57\u5178\u7684\u9ad8\u901f\u7f13\u5b58\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>4\uff09\u3001Log_buffer \uff08\u91cd\u6f14\u65e5\u5fd7\u7f13\u51b2\u533a\uff09<\/p>\n<p>&nbsp;<\/p>\n<p>5\uff09\u3001sort_area_size\uff08\u6392\u5e8f\u533a\uff09<\/p>\n<p>&nbsp;<\/p>\n<p>6\uff09\u3001processes \uff08\u540c\u65f6\u8fde\u63a5\u7684\u8fdb\u7a0b\u6570\uff09<\/p>\n<p>&nbsp;<\/p>\n<p>7\uff09\u3001db_block_size \uff08\u6570\u636e\u5e93\u5757\u5927\u5c0f\uff09\uff1aOracle\u9ed8\u8ba4\u5757\u4e3a2KB\uff0c\u592a\u5c0f\u4e86\uff0c\u56e0\u4e3a\u5982\u679c\u6211\u4eec\u6709\u4e00\u4e2a8KB\u7684\u6570\u636e\uff0c\u52192KB\u5757\u7684\u6570\u636e\u5e93\u8981\u8bfb4\u6b21\u76d8\uff0c\u624d\u80fd\u8bfb\u5b8c\uff0c\u800c8KB\u5757\u7684\u6570\u636e\u5e93\u53ea\u89811\u6b21\u5c31\u8bfb\u5b8c\u4e86\uff0c\u5927\u5927\u51cf\u5c11\u4e86I\/O\u64cd\u4f5c\u3002\u6570\u636e\u5e93\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u5c31\u4e0d\u80fd\u518d\u6539\u53d8db_block_size\u7684\u503c\u4e86\uff0c\u53ea\u80fd\u91cd\u65b0\u5efa\u7acb\u6570\u636e\u5e93\u5e76\u4e14\u5efa\u5e93\u65f6\uff0c\u8981\u9009\u62e9\u624b\u5de5\u5b89\u88c5\u6570\u636e\u5e93\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>8\uff09\u3001open_links \uff08\u540c\u65f6\u6253\u5f00\u7684\u94fe\u63a5\u6570\uff09<\/p>\n<p>&nbsp;<\/p>\n<p>9\uff09\u3001dml_locks<\/p>\n<p>&nbsp;<\/p>\n<p>10\uff09\u3001open_cursors \uff08\u6253\u5f00\u5149\u6807\u6570\uff09<\/p>\n<p>&nbsp;<\/p>\n<p>11\uff09\u3001dbwr_io_slaves \uff08\u540e\u53f0\u5199\u8fdb\u7a0b\u6570\uff09<\/p>\n<p>\u5173\u4e8eOracle\u6570\u636e\u5e93\u4e2d\u6027\u80fd\u8c03\u4f18\u7684\u539f\u5219\u5c31\u4e3a\u5927\u5bb6\u8bb2\u8ff0\u5230\u8fd9\u91cc\uff0c\u5927\u5bb6\u5728\u4ee5\u540e\u8fdb\u884cOracle\u6570\u636e\u5e93\u6027\u80fd\u8c03\u4f18\u7684\u5de5\u4f5c\u65f6\u53ef\u4ee5\u53c2\u7167\u4e0a\u6587\u4e2d\u4ecb\u7ecd\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u591f\u4ece\u4e2d\u6709\u6240\u6536\u83b7\u3002<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Oracle\u6570\u636e\u5e93\u662f\u7532\u9aa8\u6587\u516c\u53f8\u7684\u4e00\u6b3e\u5173\u7cfb\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u3002Oracle\u6570\u636e\u5e93\u6027\u80fd\u8c03\u4f18\u662f\u5b9e\u73b0Oracle\u6570\u636e\u5e93\u5728\u6b63 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7038],"tags":[],"class_list":["post-310290","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/310290","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=310290"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/310290\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=310290"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=310290"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=310290"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}