{"id":95908,"date":"2024-10-20T05:00:18","date_gmt":"2024-10-19T21:00:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/95908\/"},"modified":"2024-10-20T05:00:19","modified_gmt":"2024-10-19T21:00:19","slug":"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e7%95%b0%e6%ad%a5io%e4%bb%8b%e7%b4%b9","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/95908\/","title":{"rendered":"ORACLE\u6578\u64da\u5eab\u7570\u6b65IO\u4ecb\u7d39"},"content":{"rendered":"<h1 id=\"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e7%95%b0%e6%ad%a5io%e4%bb%8b%e7%b4%b9-MiwqXWxxSM\">ORACLE\u6578\u64da\u5eab\u7570\u6b65IO\u4ecb\u7d39<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002Oracle\u6578\u64da\u5eab\u4f5c\u70ba\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\u4f86\u512a\u5316\u6578\u64da\u8655\u7406\u3002\u5176\u4e2d\uff0c\u7570\u6b65IO\uff08Asynchronous I\/O\uff09\u662f\u4e00\u9805\u91cd\u8981\u6280\u8853\uff0c\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u97ff\u61c9\u901f\u5ea6\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%95%b0%e6%ad%a5io%ef%bc%9f-MiwqXWxxSM\">\u4ec0\u9ebc\u662f\u7570\u6b65IO\uff1f<\/h2>\n<p>\u7570\u6b65IO\u662f\u4e00\u7a2eI\/O\u64cd\u4f5c\u6a21\u5f0f\uff0c\u5141\u8a31\u7a0b\u5e8f\u5728\u767c\u8d77I\/O\u8acb\u6c42\u5f8c\u7e7c\u7e8c\u57f7\u884c\u5176\u4ed6\u4efb\u52d9\uff0c\u800c\u4e0d\u5fc5\u7b49\u5f85I\/O\u64cd\u4f5c\u5b8c\u6210\u3002\u9019\u8207\u540c\u6b65IO\u76f8\u5c0d\uff0c\u5f8c\u8005\u8981\u6c42\u7a0b\u5e8f\u5728I\/O\u64cd\u4f5c\u5b8c\u6210\u4e4b\u524d\u66ab\u505c\u57f7\u884c\u3002\u7570\u6b65IO\u7684\u4e3b\u8981\u512a\u52e2\u5728\u65bc\u80fd\u5920\u63d0\u9ad8\u7cfb\u7d71\u7684\u6574\u9ad4\u541e\u5410\u91cf\u548c\u8cc7\u6e90\u5229\u7528\u7387\u3002<\/p>\n<h2 id=\"oracle%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e7%95%b0%e6%ad%a5io-MiwqXWxxSM\">Oracle\u6578\u64da\u5eab\u4e2d\u7684\u7570\u6b65IO<\/h2>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\uff0c\u7570\u6b65IO\u7684\u5be6\u73fe\u4e3b\u8981\u4f9d\u8cf4\u65bc\u64cd\u4f5c\u7cfb\u7d71\u7684\u652f\u6301\u3002Oracle\u5229\u7528\u7570\u6b65IO\u4f86\u512a\u5316\u78c1\u789fI\/O\u64cd\u4f5c\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002\u9019\u7a2e\u6280\u8853\u53ef\u4ee5\u6e1b\u5c11I\/O\u7b49\u5f85\u6642\u9593\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u548c\u4e8b\u52d9\u8655\u7406\u901f\u5ea6\u3002<\/p>\n<h3 id=\"%e7%95%b0%e6%ad%a5io%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-MiwqXWxxSM\">\u7570\u6b65IO\u7684\u5de5\u4f5c\u539f\u7406<\/h3>\n<p>\u5728Oracle\u4e2d\uff0c\u7570\u6b65IO\u7684\u5de5\u4f5c\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u7576\u6578\u64da\u5eab\u9700\u8981\u8b80\u53d6\u6216\u5beb\u5165\u6578\u64da\u6642\uff0c\u5b83\u6703\u767c\u8d77\u4e00\u500b\u7570\u6b65I\/O\u8acb\u6c42\u3002<\/li>\n<li>\u8acb\u6c42\u88ab\u767c\u9001\u5230\u64cd\u4f5c\u7cfb\u7d71\uff0c\u6578\u64da\u5eab\u53ef\u4ee5\u7e7c\u7e8c\u57f7\u884c\u5176\u4ed6\u64cd\u4f5c\uff0c\u800c\u4e0d\u5fc5\u7b49\u5f85I\/O\u5b8c\u6210\u3002<\/li>\n<li>\u4e00\u65e6I\/O\u64cd\u4f5c\u5b8c\u6210\uff0c\u64cd\u4f5c\u7cfb\u7d71\u6703\u901a\u77e5Oracle\u6578\u64da\u5eab\uff0c\u6578\u64da\u5eab\u96a8\u5f8c\u8655\u7406\u7d50\u679c\u3002<\/li>\n<\/ul>\n<p>\u9019\u7a2e\u65b9\u5f0f\u4f7f\u5f97\u6578\u64da\u5eab\u80fd\u5920\u66f4\u6709\u6548\u5730\u5229\u7528CPU\u8cc7\u6e90\uff0c\u7279\u5225\u662f\u5728\u9ad8\u8ca0\u8f09\u60c5\u6cc1\u4e0b\u3002<\/p>\n<h3 id=\"%e7%95%b0%e6%ad%a5io%e7%9a%84%e5%84%aa%e5%8b%a2-MiwqXWxxSM\">\u7570\u6b65IO\u7684\u512a\u52e2<\/h3>\n<p>\u4f7f\u7528\u7570\u6b65IO\u7684\u4e3b\u8981\u512a\u52e2\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u63d0\u9ad8\u6027\u80fd\uff1a<\/strong>\u7570\u6b65IO\u53ef\u4ee5\u986f\u8457\u6e1b\u5c11I\/O\u64cd\u4f5c\u7684\u7b49\u5f85\u6642\u9593\uff0c\u5f9e\u800c\u63d0\u9ad8\u6574\u9ad4\u6027\u80fd\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u5229\u7528\u7387\uff1a<\/strong>\u901a\u904e\u5141\u8a31CPU\u5728I\/O\u64cd\u4f5c\u671f\u9593\u57f7\u884c\u5176\u4ed6\u4efb\u52d9\uff0c\u7cfb\u7d71\u8cc7\u6e90\u5f97\u5230\u4e86\u66f4\u6709\u6548\u7684\u5229\u7528\u3002<\/li>\n<li><strong>\u64f4\u5c55\u6027\uff1a<\/strong>\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\uff0c\u7570\u6b65IO\u80fd\u5920\u652f\u6301\u66f4\u591a\u7684\u4e26\u884c\u64cd\u4f5c\uff0c\u5f9e\u800c\u63d0\u9ad8\u7cfb\u7d71\u7684\u64f4\u5c55\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8oracle%e4%b8%ad%e5%95%9f%e7%94%a8%e7%95%b0%e6%ad%a5io-MiwqXWxxSM\">\u5982\u4f55\u5728Oracle\u4e2d\u555f\u7528\u7570\u6b65IO<\/h2>\n<p>\u5728Oracle\u6578\u64da\u5eab\u4e2d\u555f\u7528\u7570\u6b65IO\u901a\u5e38\u9700\u8981\u9032\u884c\u4e00\u4e9b\u914d\u7f6e\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<pre><code>-- \u6aa2\u67e5\u7570\u6b65IO\u662f\u5426\u5df2\u555f\u7528\nSELECT value FROM v$parameter WHERE name = 'disk_asynch_io';\n\n-- \u5982\u679c\u672a\u555f\u7528\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u555f\u7528\nALTER SYSTEM SET disk_asynch_io = TRUE SCOPE = SPFILE;\n<\/code><\/pre>\n<p>\u555f\u7528\u5f8c\uff0c\u91cd\u555f\u6578\u64da\u5eab\u4ee5\u4f7f\u66f4\u6539\u751f\u6548\u3002\u9019\u6a23\uff0cOracle\u5c07\u958b\u59cb\u4f7f\u7528\u7570\u6b65IO\u4f86\u8655\u7406\u78c1\u789fI\/O\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-MiwqXWxxSM\">\u7d50\u8ad6<\/h2>\n<p>\u7570\u6b65IO\u5728Oracle\u6578\u64da\u5eab\u4e2d\u662f\u4e00\u9805\u5f37\u5927\u7684\u6280\u8853\uff0c\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6027\u80fd\u548c\u6548\u7387\u3002\u901a\u904e\u5408\u7406\u914d\u7f6e\u548c\u4f7f\u7528\u7570\u6b65IO\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u4ee5\u512a\u5316\u7cfb\u7d71\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u9ad8\u8ca0\u8f09\u548c\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\u548c\u696d\u52d9\u9700\u6c42\u7684\u8b8a\u5316\uff0c\u638c\u63e1\u7570\u6b65IO\u7684\u4f7f\u7528\u5c07\u6210\u70ba\u6578\u64da\u5eab\u7ba1\u7406\u7684\u91cd\u8981\u6280\u80fd\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc<code>VPS<\/code>\u3001<code>\u9999\u6e2fVPS<\/code>\u3001<code>\u4f3a\u670d\u5668<\/code>\u3001<code>\u4e91\u4f3a\u670d\u5668<\/code>\u53ca<code>\u9999\u6e2f\u4f3a\u670d\u5668<\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3ORACLE\u6578\u64da\u5eab\u7684\u7570\u6b65IO\u6280\u8853\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u512a\u5316\u6027\u80fd\uff0c\u5be6\u73fe\u9ad8\u6548\u80fd\u7684\u6578\u64da\u5b58\u53d6\u89e3\u6c7a\u65b9\u6848\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-95908","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95908","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=95908"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95908\/revisions"}],"predecessor-version":[{"id":95909,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/95908\/revisions\/95909"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=95908"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=95908"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=95908"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}