{"id":103811,"date":"2026-09-11T11:33:06","date_gmt":"2026-09-11T03:33:06","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/103811.html"},"modified":"2026-09-11T11:33:06","modified_gmt":"2026-09-11T03:33:06","slug":"%e4%bb%8e-raid-%e5%88%b0-i-o-%e5%a4%9a%e8%b7%af%e5%a4%8d%e7%94%a8%ef%bc%9alinux-%e5%ad%98%e5%82%a8%e4%b8%8e-i-o-%e6%a8%a1%e5%9e%8b%e5%85%a5%e9%97%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/103811.html","title":{"rendered":"\u4ece RAID \u5230 I\/O \u591a\u8def\u590d\u7528\uff1aLinux \u5b58\u50a8\u4e0e I\/O \u6a21\u578b\u5165\u95e8"},"content":{"rendered":"<p>\u5e73\u65f6\u51c6\u5907 Java \u540e\u7aef\u9762\u8bd5\u65f6&#xff0c;\u6211\u4eec\u7ecf\u5e38\u4f1a\u78b0\u5230\u4e00\u7ec4\u770b\u8d77\u6765\u6ca1\u4ec0\u4e48\u8054\u7cfb\u7684\u95ee\u9898&#xff1a;RAID \u6709\u54ea\u4e9b\u7ea7\u522b&#xff1f;\u8f6f\u94fe\u63a5\u548c\u786c\u94fe\u63a5\u6709\u4ec0\u4e48\u533a\u522b&#xff1f;BIO\u3001NIO\u3001AIO \u53c8\u5206\u522b\u4ee3\u8868\u4ec0\u4e48&#xff1f;<\/p>\n<p>\u5176\u5b9e&#xff0c;\u8fd9\u4e9b\u77e5\u8bc6\u90fd\u548c\u201c\u6570\u636e\u5982\u4f55\u5b58\u50a8\u3001\u5982\u4f55\u88ab\u7a0b\u5e8f\u8bfb\u53d6\u201d\u6709\u5173\u3002RAID \u89e3\u51b3\u7684\u662f\u78c1\u76d8\u5c42\u9762\u7684\u5bb9\u91cf\u3001\u6027\u80fd\u548c\u53ef\u9760\u6027\u95ee\u9898&#xff1b;\u8f6f\u786c\u94fe\u63a5\u5c5e\u4e8e\u6587\u4ef6\u7cfb\u7edf&#xff1b;\u5404\u79cd I\/O \u6a21\u578b\u5219\u51b3\u5b9a\u4e86\u7a0b\u5e8f\u7b49\u5f85\u548c\u8bfb\u53d6\u6570\u636e\u7684\u65b9\u5f0f\u3002<\/p>\n<h3>\u4e00\u3001\u4ec0\u4e48\u662f RAID<\/h3>\n<p>RAID \u7684\u5168\u79f0\u662f Redundant Array of Independent Disks&#xff0c;\u4e2d\u6587\u901a\u5e38\u53eb\u201c\u72ec\u7acb\u78c1\u76d8\u5197\u4f59\u9635\u5217\u201d\u3002\u7b80\u5355\u7406\u89e3&#xff0c;\u5c31\u662f\u628a\u591a\u5757\u7269\u7406\u78c1\u76d8\u7ec4\u5408\u8d77\u6765&#xff0c;\u5bf9\u5916\u8868\u73b0\u4e3a\u4e00\u4e2a\u903b\u8f91\u78c1\u76d8\u3002<\/p>\n<p>\u4e3a\u4ec0\u4e48\u8981\u8fd9\u6837\u505a&#xff1f;\u56e0\u4e3a\u5355\u5757\u78c1\u76d8\u901a\u5e38\u5f88\u96be\u540c\u65f6\u6ee1\u8db3\u4e09\u4e2a\u8981\u6c42&#xff1a;\u5bb9\u91cf\u5927\u3001\u8bfb\u5199\u5feb\u3001\u6545\u969c\u540e\u6570\u636e\u4e0d\u4e22\u3002RAID \u901a\u8fc7\u6761\u5e26\u3001\u955c\u50cf\u548c\u6821\u9a8c\u7b49\u65b9\u5f0f&#xff0c;\u5728\u5bb9\u91cf\u3001\u6027\u80fd\u4e0e\u53ef\u9760\u6027\u4e4b\u95f4\u505a\u53d6\u820d\u3002<\/p>\n<h4>RAID 0&#xff1a;\u53ea\u8ffd\u6c42\u6027\u80fd<\/h4>\n<p>RAID 0 \u4f1a\u628a\u6570\u636e\u62c6\u5206\u540e&#xff0c;\u5206\u522b\u5199\u5165\u591a\u5757\u78c1\u76d8\u3002\u6bd4\u5982\u4e00\u4efd\u6570\u636e\u88ab\u5206\u6210 A\u3001B\u3001C\u3001D \u56db\u5757&#xff0c;\u4e24\u5757\u78c1\u76d8\u53ef\u4ee5\u5206\u522b\u4fdd\u5b58 A\u3001C \u548c B\u3001D\u3002\u591a\u5757\u78c1\u76d8\u5e76\u884c\u5de5\u4f5c&#xff0c;\u56e0\u6b64\u8bfb\u5199\u901f\u5ea6\u8f83\u5feb\u3002<\/p>\n<p>\u5b83\u7684\u7f3a\u70b9\u4e5f\u5f88\u76f4\u63a5&#xff1a;\u6ca1\u6709\u4efb\u4f55\u5197\u4f59\u3002\u53ea\u8981\u5176\u4e2d\u4e00\u5757\u78c1\u76d8\u635f\u574f&#xff0c;\u6574\u4e2a\u9635\u5217\u7684\u6570\u636e\u90fd\u53ef\u80fd\u65e0\u6cd5\u6b63\u5e38\u4f7f\u7528\u3002<\/p>\n<ul>\n<li>\n<p>\u6700\u5c11\u9700\u8981 2 \u5757\u78c1\u76d8&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u53ef\u7528\u5bb9\u91cf\u7b49\u4e8e\u6240\u6709\u78c1\u76d8\u5bb9\u91cf\u4e4b\u548c&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u8bfb\u5199\u6027\u80fd\u597d&#xff0c;\u4f46\u4e0d\u80fd\u5bb9\u9519&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u9002\u5408\u4e34\u65f6\u6570\u636e\u3001\u7f13\u5b58\u6216\u53ef\u91cd\u65b0\u751f\u6210\u7684\u6570\u636e\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>RAID 1&#xff1a;\u7528\u7a7a\u95f4\u6362\u53ef\u9760\u6027<\/h4>\n<p>RAID 1 \u4e5f\u53eb\u955c\u50cf\u3002\u5199\u5165\u4e00\u4efd\u6570\u636e\u65f6&#xff0c;\u4f1a\u5728\u53e6\u4e00\u5757\u78c1\u76d8\u4e2d\u4fdd\u5b58\u5b8c\u5168\u76f8\u540c\u7684\u526f\u672c\u3002\u4e00\u5757\u78c1\u76d8\u574f\u4e86&#xff0c;\u8fd8\u80fd\u4ece\u53e6\u4e00\u5757\u8bfb\u53d6\u6570\u636e\u3002<\/p>\n<p>\u5b83\u7684\u95ee\u9898\u662f\u7a7a\u95f4\u5229\u7528\u7387\u4f4e\u3002\u4e24\u5757 1 TB \u78c1\u76d8\u7ec4\u6210 RAID 1&#xff0c;\u771f\u6b63\u53ef\u7528\u7684\u5bb9\u91cf\u901a\u5e38\u53ea\u6709 1 TB\u3002<\/p>\n<h4>RAID 5&#xff1a;\u5bb9\u91cf\u4e0e\u5b89\u5168\u4e4b\u95f4\u7684\u6298\u4e2d<\/h4>\n<p>RAID 5 \u81f3\u5c11\u9700\u8981 3 \u5757\u78c1\u76d8\u3002\u5b83\u9664\u4e86\u4fdd\u5b58\u6570\u636e&#xff0c;\u8fd8\u4f1a\u628a\u6821\u9a8c\u4fe1\u606f\u5206\u6563\u5230\u4e0d\u540c\u78c1\u76d8\u4e0a\u3002\u4efb\u610f\u4e00\u5757\u78c1\u76d8\u635f\u574f\u540e&#xff0c;\u53ef\u4ee5\u5229\u7528\u5269\u4f59\u6570\u636e\u548c\u6821\u9a8c\u4fe1\u606f\u6062\u590d\u5185\u5bb9\u3002<\/p>\n<p>RAID 5 \u7684\u8bfb\u53d6\u6027\u80fd\u901a\u5e38\u4e0d\u9519&#xff0c;\u5bb9\u91cf\u5229\u7528\u7387\u4e5f\u9ad8\u4e8e RAID 1\u3002\u4e0d\u8fc7\u5199\u5165\u65f6\u9700\u8981\u8ba1\u7b97\u5e76\u66f4\u65b0\u6821\u9a8c\u4fe1\u606f&#xff0c;\u56e0\u6b64\u5199\u6027\u80fd\u4f1a\u53d7\u5230\u4e00\u5b9a\u5f71\u54cd\u3002\u9635\u5217\u5904\u4e8e\u964d\u7ea7\u72b6\u6001\u65f6&#xff0c;\u5982\u679c\u53c8\u6709\u4e00\u5757\u78c1\u76d8\u635f\u574f&#xff0c;\u6570\u636e\u4ecd\u53ef\u80fd\u4e22\u5931\u3002<\/p>\n<h4>RAID 10&#xff1a;\u5148\u955c\u50cf&#xff0c;\u518d\u6761\u5e26<\/h4>\n<p>RAID 10 \u53ef\u4ee5\u7406\u89e3\u4e3a RAID 1 \u548c RAID 0 \u7684\u7ec4\u5408\u3002\u5b83\u5148\u628a\u78c1\u76d8\u4e24\u4e24\u7ec4\u6210\u955c\u50cf&#xff0c;\u518d\u5bf9\u955c\u50cf\u7ec4\u505a\u6761\u5e26\u5316&#xff0c;\u56e0\u6b64\u540c\u65f6\u5177\u5907\u8f83\u597d\u7684\u6027\u80fd\u4e0e\u53ef\u9760\u6027\u3002<\/p>\n<p>\u4ee3\u4ef7\u662f\u81f3\u5c11\u9700\u8981 4 \u5757\u78c1\u76d8&#xff0c;\u800c\u4e14\u53ea\u6709\u4e00\u534a\u5de6\u53f3\u7684\u603b\u5bb9\u91cf\u53ef\u4ee5\u4f7f\u7528\u3002\u6570\u636e\u5e93\u7b49\u65e2\u91cd\u89c6\u6027\u80fd\u53c8\u91cd\u89c6\u53ef\u9760\u6027\u7684\u573a\u666f&#xff0c;\u7ecf\u5e38\u4f1a\u8003\u8651 RAID 10\u3002<\/p>\n<table>\n<tbody>\n<tr>RAID \u7ea7\u522b\u6700\u5c11\u78c1\u76d8\u6570\u53ef\u7528\u5bb9\u91cf&#xff08;\u540c\u5bb9\u91cf\u78c1\u76d8&#xff09;\u5bb9\u9519\u80fd\u529b\u4e3b\u8981\u7279\u70b9<\/tr>\n<tr>\n<td>RAID 0<\/td>\n<td>2<\/td>\n<td>N \u00d7 \u5355\u76d8\u5bb9\u91cf<\/td>\n<td>\u65e0<\/td>\n<td>\u6027\u80fd\u9ad8\u3001\u98ce\u9669\u5927<\/td>\n<\/tr>\n<tr>\n<td>RAID 1<\/td>\n<td>2<\/td>\n<td>\u7ea6\u4e00\u534a\u603b\u5bb9\u91cf<\/td>\n<td>\u901a\u5e38\u5141\u8bb8\u955c\u50cf\u7ec4\u574f 1 \u5757<\/td>\n<td>\u7b80\u5355\u53ef\u9760\u3001\u7a7a\u95f4\u5229\u7528\u7387\u4f4e<\/td>\n<\/tr>\n<tr>\n<td>RAID 5<\/td>\n<td>3<\/td>\n<td>(N &#8211; 1) \u00d7 \u5355\u76d8\u5bb9\u91cf<\/td>\n<td>\u5141\u8bb8\u574f 1 \u5757<\/td>\n<td>\u5bb9\u91cf\u5229\u7528\u7387\u8f83\u9ad8\u3001\u5199\u5165\u6709\u6821\u9a8c\u5f00\u9500<\/td>\n<\/tr>\n<tr>\n<td>RAID 10<\/td>\n<td>4<\/td>\n<td>\u7ea6\u4e00\u534a\u603b\u5bb9\u91cf<\/td>\n<td>\u53d6\u51b3\u4e8e\u635f\u574f\u4f4d\u7f6e<\/td>\n<td>\u6027\u80fd\u4e0e\u53ef\u9760\u6027\u8f83\u5747\u8861<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u4e8c\u3001\u786c\u94fe\u63a5\u548c\u8f6f\u94fe\u63a5\u6709\u4ec0\u4e48\u533a\u522b<\/h3>\n<p>Linux \u6587\u4ef6\u7cfb\u7edf\u901a\u5e38\u4f7f\u7528 inode \u8bb0\u5f55\u6587\u4ef6\u7684\u5143\u6570\u636e\u548c\u6570\u636e\u4f4d\u7f6e&#xff0c;\u6587\u4ef6\u540d\u5219\u53ef\u4ee5\u7406\u89e3\u4e3a\u6307\u5411 inode \u7684\u5165\u53e3\u3002<\/p>\n<p>\u786c\u94fe\u63a5\u76f8\u5f53\u4e8e\u7ed9\u540c\u4e00\u4e2a inode \u518d\u53d6\u4e00\u4e2a\u540d\u5b57\u3002\u4e24\u4e2a\u6587\u4ef6\u540d\u5730\u4f4d\u57fa\u672c\u76f8\u540c&#xff0c;\u5220\u9664\u5176\u4e2d\u4e00\u4e2a\u540d\u79f0&#xff0c;\u53ea\u662f\u51cf\u5c11\u4e86\u4e00\u6761\u5f15\u7528&#xff1b;\u53ea\u8981\u8fd8\u6709\u786c\u94fe\u63a5\u5b58\u5728&#xff0c;\u6587\u4ef6\u6570\u636e\u5c31\u4e0d\u4f1a\u88ab\u771f\u6b63\u5220\u9664\u3002<\/p>\n<p>ln source.txt hard-link.txt<\/p>\n<p>\u8f6f\u94fe\u63a5\u4e5f\u53eb\u7b26\u53f7\u94fe\u63a5&#xff0c;\u66f4\u50cf Windows \u7684\u5feb\u6377\u65b9\u5f0f\u3002\u5b83\u662f\u4e00\u4e2a\u72ec\u7acb\u7684\u5c0f\u6587\u4ef6&#xff0c;\u4fdd\u5b58\u7684\u662f\u76ee\u6807\u6587\u4ef6\u7684\u8def\u5f84\u3002\u5982\u679c\u76ee\u6807\u88ab\u5220\u9664\u6216\u79fb\u52a8&#xff0c;\u8f6f\u94fe\u63a5\u4ecd\u7136\u5b58\u5728&#xff0c;\u4f46\u4f1a\u53d8\u6210\u65e0\u6cd5\u8bbf\u95ee\u7684\u201c\u5931\u6548\u94fe\u63a5\u201d\u3002<\/p>\n<p>ln -s source.txt soft-link.txt<\/p>\n<p>\u00a0\n<\/p>\n<p>\u5982\u679c\u53ea\u8bb0\u4e00\u53e5\u8bdd&#xff1a;\u786c\u94fe\u63a5\u662f\u201c\u540c\u4e00\u4efd\u6570\u636e\u7684\u53e6\u4e00\u4e2a\u540d\u5b57\u201d&#xff0c;\u8f6f\u94fe\u63a5\u662f\u201c\u901a\u5f80\u76ee\u6807\u8def\u5f84\u7684\u5feb\u6377\u65b9\u5f0f\u201d\u3002<\/p>\n<h3>\u4e09\u3001BIO\u3001NIO \u548c AIO \u7684\u533a\u522b<\/h3>\n<p>\u5728 Java \u8bed\u5883\u4e0b&#xff0c;\u8fd9\u4e09\u4e2a\u6982\u5ff5\u5e38\u7528\u6765\u63cf\u8ff0\u4e0d\u540c\u7684 I\/O \u7f16\u7a0b\u65b9\u5f0f\u3002<\/p>\n<h4>BIO&#xff1a;\u540c\u6b65\u963b\u585e<\/h4>\n<p>BIO \u662f\u4f20\u7edf\u7684\u963b\u585e I\/O\u3002\u7ebf\u7a0b\u8c03\u7528 read() \u540e&#xff0c;\u5982\u679c\u6570\u636e\u8fd8\u6ca1\u6709\u5230\u8fbe&#xff0c;\u5c31\u4f1a\u505c\u5728\u90a3\u91cc\u7b49\u5f85\u3002\u65e9\u671f\u7f51\u7edc\u670d\u52a1\u5668\u5e38\u91c7\u7528\u201c\u4e00\u4e2a\u8fde\u63a5\u5bf9\u5e94\u4e00\u4e2a\u7ebf\u7a0b\u201d\u7684\u65b9\u5f0f&#xff0c;\u4ee3\u7801\u76f4\u89c2&#xff0c;\u4f46\u8fde\u63a5\u6570\u91cf\u5f88\u5927\u65f6\u4f1a\u521b\u5efa\u5927\u91cf\u7ebf\u7a0b&#xff0c;\u7ebf\u7a0b\u5207\u6362\u548c\u5185\u5b58\u5f00\u9500\u4e5f\u4f1a\u968f\u4e4b\u589e\u52a0\u3002<\/p>\n<p>BIO \u5e76\u4e0d\u662f\u6027\u80fd\u4e00\u5b9a\u5dee\u3002\u8fde\u63a5\u6570\u4e0d\u591a\u3001\u8bf7\u6c42\u5904\u7406\u7b80\u5355\u65f6&#xff0c;\u5b83\u53cd\u800c\u5bb9\u6613\u5f00\u53d1\u548c\u7ef4\u62a4\u3002<\/p>\n<h4>NIO&#xff1a;\u540c\u6b65\u975e\u963b\u585e<\/h4>\n<p>Java NIO \u63d0\u4f9b\u4e86 Channel\u3001Buffer \u548c Selector \u7b49\u7ec4\u4ef6\u3002\u7ebf\u7a0b\u53ef\u4ee5\u901a\u8fc7 Selector \u5173\u6ce8\u591a\u4e2a Channel&#xff0c;\u53ea\u6709\u67d0\u4e2a\u8fde\u63a5\u771f\u6b63\u5c31\u7eea\u65f6&#xff0c;\u624d\u5904\u7406\u76f8\u5e94\u4e8b\u4ef6\u3002<\/p>\n<p>\u8fd9\u91cc\u5bb9\u6613\u51fa\u73b0\u4e00\u4e2a\u8bef\u533a&#xff1a;NIO \u4e0d\u4ee3\u8868\u6574\u4e2a\u8fc7\u7a0b\u90fd\u662f\u5f02\u6b65\u7684\u3002\u6570\u636e\u5c31\u7eea\u540e&#xff0c;\u5e94\u7528\u7ebf\u7a0b\u901a\u5e38\u4ecd\u8981\u81ea\u5df1\u6267\u884c\u8bfb\u53d6\u64cd\u4f5c&#xff0c;\u6240\u4ee5\u5b83\u66f4\u51c6\u786e\u5730\u8bf4\u662f\u540c\u6b65\u975e\u963b\u585e I\/O&#xff0c;\u5e76\u7ecf\u5e38\u4e0e I\/O \u591a\u8def\u590d\u7528\u4e00\u8d77\u4f7f\u7528\u3002<\/p>\n<h4>AIO&#xff1a;\u5f02\u6b65\u975e\u963b\u585e<\/h4>\n<p>AIO \u7684\u601d\u8def\u662f&#xff0c;\u5e94\u7528\u53d1\u8d77\u8bfb\u53d6\u8bf7\u6c42\u540e\u53ef\u4ee5\u7ee7\u7eed\u505a\u5176\u4ed6\u4e8b\u60c5&#xff1b;\u7b49\u64cd\u4f5c\u7cfb\u7edf\u5b8c\u6210 I\/O&#xff0c;\u518d\u901a\u8fc7\u56de\u8c03\u6216\u901a\u77e5\u544a\u8bc9\u5e94\u7528\u7ed3\u679c\u3002\u7ebf\u7a0b\u4e0d\u9700\u8981\u53cd\u590d\u8be2\u95ee\u6570\u636e\u662f\u5426\u51c6\u5907\u597d&#xff0c;\u4e5f\u4e0d\u5fc5\u4e00\u76f4\u963b\u585e\u7b49\u5f85\u3002<\/p>\n<table>\n<tbody>\n<tr>\u7c7b\u578b\u53d1\u8d77\u8bf7\u6c42\u540e\u6570\u636e\u8bfb\u5199\u7531\u8c01\u7b49\u5f85\u6216\u5b8c\u6210\u5e38\u89c1\u7279\u70b9<\/tr>\n<tr>\n<td>BIO<\/td>\n<td>\u7ebf\u7a0b\u963b\u585e<\/td>\n<td>\u5e94\u7528\u7ebf\u7a0b\u7b49\u5f85\u5e76\u8bfb\u53d6<\/td>\n<td>\u7b80\u5355&#xff0c;\u8fde\u63a5\u591a\u65f6\u7ebf\u7a0b\u5f00\u9500\u5927<\/td>\n<\/tr>\n<tr>\n<td>NIO<\/td>\n<td>\u53ef\u5148\u5904\u7406\u5176\u4ed6\u8fde\u63a5<\/td>\n<td>\u5e94\u7528\u5728\u7ebf\u7a0b\u6536\u5230\u5c31\u7eea\u4e8b\u4ef6\u540e\u8bfb\u53d6<\/td>\n<td>\u9002\u5408\u8fde\u63a5\u591a\u3001\u6d3b\u8dc3\u8fde\u63a5\u8f83\u5c11\u7684\u573a\u666f<\/td>\n<\/tr>\n<tr>\n<td>AIO<\/td>\n<td>\u7ee7\u7eed\u6267\u884c\u5176\u4ed6\u4efb\u52a1<\/td>\n<td>\u7cfb\u7edf\u5b8c\u6210\u540e\u901a\u77e5\u5e94\u7528<\/td>\n<td>\u7f16\u7a0b\u6a21\u578b\u5f02\u6b65&#xff0c;\u5bf9\u7cfb\u7edf\u652f\u6301\u6709\u8981\u6c42<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u56db\u3001\u4ec0\u4e48\u662f I\/O \u591a\u8def\u590d\u7528<\/h3>\n<p>\u5047\u8bbe\u670d\u52a1\u5668\u540c\u65f6\u7ef4\u62a4\u4e00\u4e07\u4e2a\u8fde\u63a5&#xff0c;\u4f46\u771f\u6b63\u6709\u6570\u636e\u5230\u8fbe\u7684\u53ef\u80fd\u53ea\u6709\u51e0\u5341\u4e2a\u3002\u5982\u679c\u7ed9\u6bcf\u4e2a\u8fde\u63a5\u5b89\u6392\u4e00\u4e2a\u7ebf\u7a0b&#xff0c;\u5927\u90e8\u5206\u7ebf\u7a0b\u90fd\u5728\u7b49\u5f85&#xff0c;\u8d44\u6e90\u5229\u7528\u7387\u5e76\u4e0d\u9ad8\u3002<\/p>\n<p>I\/O \u591a\u8def\u590d\u7528\u89e3\u51b3\u7684\u6b63\u662f\u8fd9\u4e2a\u95ee\u9898&#xff1a;\u8ba9\u4e00\u4e2a\u7ebf\u7a0b\u540c\u65f6\u5173\u6ce8\u591a\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26&#xff0c;\u7b49\u7cfb\u7edf\u544a\u8bc9\u5b83\u201c\u54ea\u4e9b\u8fde\u63a5\u5df2\u7ecf\u5c31\u7eea\u201d&#xff0c;\u518d\u5904\u7406\u8fd9\u4e9b\u8fde\u63a5\u3002\u8fd9\u91cc\u7684\u201c\u591a\u8def\u201d\u662f\u591a\u4e2a\u8fde\u63a5&#xff0c;\u201c\u590d\u7528\u201d\u662f\u590d\u7528\u5c11\u91cf\u7ebf\u7a0b\u3002<\/p>\n<p>\u591a\u8def\u590d\u7528\u5e76\u4e0d\u8868\u793a\u4e00\u4e2a\u7ebf\u7a0b\u80fd\u5728\u540c\u4e00\u65f6\u523b\u6267\u884c\u591a\u4e2a\u4e1a\u52a1\u4efb\u52a1\u3002\u5b83\u4e3b\u8981\u4f18\u5316\u7684\u662f\u201c\u7b49\u5f85\u54ea\u4e9b\u8fde\u63a5\u53ef\u8bfb\u3001\u53ef\u5199\u201d\u8fd9\u4ef6\u4e8b\u3002\u4e8b\u4ef6\u5c31\u7eea\u540e\u7684\u4e1a\u52a1\u5904\u7406\u5982\u679c\u5f88\u8017\u65f6&#xff0c;\u4ecd\u7136\u53ef\u4ee5\u4ea4\u7ed9\u5de5\u4f5c\u7ebf\u7a0b\u6c60\u3002<\/p>\n<h3>\u4e94\u3001\u5e38\u89c1\u7684\u4e94\u79cd I\/O \u6a21\u578b<\/h3>\n<p>\u7406\u89e3 I\/O \u6a21\u578b\u65f6&#xff0c;\u53ef\u4ee5\u628a\u4e00\u6b21\u8bfb\u53d6\u5206\u4e3a\u4e24\u4e2a\u9636\u6bb5&#xff1a;\u7b2c\u4e00\u9636\u6bb5\u7b49\u5f85\u6570\u636e\u51c6\u5907\u597d&#xff0c;\u7b2c\u4e8c\u9636\u6bb5\u628a\u6570\u636e\u4ece\u5185\u6838\u7f13\u51b2\u533a\u590d\u5236\u5230\u5e94\u7528\u7f13\u51b2\u533a\u3002\u4e0d\u540c\u6a21\u578b\u7684\u533a\u522b&#xff0c;\u4e3b\u8981\u5c31\u53d1\u751f\u5728\u8fd9\u4e24\u4e2a\u9636\u6bb5\u3002<\/p>\n<h4>1. \u963b\u585e I\/O<\/h4>\n<p>\u8c03\u7528\u8bfb\u53d6\u65b9\u6cd5\u540e&#xff0c;\u7ebf\u7a0b\u4ece\u7b49\u5f85\u6570\u636e\u5230\u6570\u636e\u590d\u5236\u5b8c\u6210&#xff0c;\u6574\u4e2a\u8fc7\u7a0b\u90fd\u88ab\u963b\u585e\u3002\u6a21\u578b\u7b80\u5355&#xff0c;\u4f46\u7b49\u5f85\u671f\u95f4\u7ebf\u7a0b\u65e0\u6cd5\u505a\u5176\u4ed6\u4e8b\u60c5\u3002<\/p>\n<h4>2. \u975e\u963b\u585e I\/O<\/h4>\n<p>\u5982\u679c\u6570\u636e\u6ca1\u6709\u51c6\u5907\u597d&#xff0c;\u7cfb\u7edf\u4f1a\u7acb\u5373\u8fd4\u56de&#xff0c;\u5e94\u7528\u8fc7\u4e00\u4f1a\u513f\u518d\u8be2\u95ee\u3002\u8fd9\u907f\u514d\u4e86\u957f\u65f6\u95f4\u963b\u585e&#xff0c;\u4f46\u4e0d\u65ad\u8f6e\u8be2\u4e5f\u4f1a\u6d88\u8017 CPU\u3002\u5b9e\u9645\u5f00\u53d1\u4e2d&#xff0c;\u901a\u5e38\u4e0d\u4f1a\u53ea\u9760\u8fd9\u79cd\u5fd9\u8f6e\u8be2\u5904\u7406\u5927\u91cf\u8fde\u63a5\u3002<\/p>\n<h4>3. I\/O \u591a\u8def\u590d\u7528<\/h4>\n<p>\u5e94\u7528\u901a\u8fc7 select\u3001poll \u6216 epoll \u7b49\u673a\u5236\u7edf\u4e00\u7b49\u5f85\u591a\u4e2a\u8fde\u63a5\u3002\u67d0\u4e2a\u8fde\u63a5\u5c31\u7eea\u540e&#xff0c;\u518d\u7531\u5e94\u7528\u6267\u884c\u771f\u6b63\u7684\u8bfb\u5199\u3002\u5b83\u4ecd\u5c5e\u4e8e\u540c\u6b65 I\/O&#xff0c;\u56e0\u4e3a\u6570\u636e\u590d\u5236\u9636\u6bb5\u901a\u5e38\u7531\u5e94\u7528\u7ebf\u7a0b\u53c2\u4e0e\u5b8c\u6210\u3002<\/p>\n<h4>4. \u4fe1\u53f7\u9a71\u52a8 I\/O<\/h4>\n<p>\u5e94\u7528\u5148\u6ce8\u518c\u4fe1\u53f7\u5904\u7406\u51fd\u6570&#xff0c;\u7136\u540e\u7ee7\u7eed\u6267\u884c\u5176\u4ed6\u5de5\u4f5c\u3002\u6570\u636e\u51c6\u5907\u597d\u65f6&#xff0c;\u5185\u6838\u53d1\u9001\u4fe1\u53f7\u901a\u77e5\u5e94\u7528&#xff0c;\u5e94\u7528\u518d\u8fdb\u884c\u8bfb\u53d6\u3002\u5b83\u51cf\u5c11\u4e86\u4e3b\u52a8\u8f6e\u8be2&#xff0c;\u4f46\u4fe1\u53f7\u5904\u7406\u548c\u7a0b\u5e8f\u63a7\u5236\u76f8\u5bf9\u590d\u6742&#xff0c;\u5de5\u7a0b\u4e2d\u6ca1\u6709\u591a\u8def\u590d\u7528\u5e38\u89c1\u3002<\/p>\n<h4>5. \u5f02\u6b65 I\/O<\/h4>\n<p>\u5e94\u7528\u63d0\u4ea4 I\/O \u8bf7\u6c42\u540e\u7acb\u5373\u8fd4\u56de&#xff0c;\u7b49\u5f85\u6570\u636e\u548c\u590d\u5236\u6570\u636e\u90fd\u7531\u7cfb\u7edf\u8d1f\u8d23\u3002\u6574\u4e2a\u64cd\u4f5c\u5b8c\u6210\u540e&#xff0c;\u7cfb\u7edf\u518d\u901a\u77e5\u5e94\u7528\u3002\u5b83\u548c\u4fe1\u53f7\u9a71\u52a8 I\/O \u7684\u5173\u952e\u533a\u522b\u662f&#xff1a;\u4fe1\u53f7\u9a71\u52a8\u901a\u5e38\u901a\u77e5\u201c\u53ef\u4ee5\u8bfb\u4e86\u201d&#xff0c;\u5f02\u6b65 I\/O \u901a\u77e5\u7684\u662f\u201c\u5df2\u7ecf\u8bfb\u5b8c\u4e86\u201d\u3002<\/p>\n<h3><\/h3>\n","protected":false},"excerpt":{"rendered":"<p>\u5e73\u65f6\u51c6\u5907 Java \u540e\u7aef\u9762\u8bd5\u65f6&#xff0c;\u6211\u4eec\u7ecf\u5e38\u4f1a\u78b0\u5230\u4e00\u7ec4\u770b\u8d77\u6765\u6ca1\u4ec0\u4e48\u8054\u7cfb\u7684\u95ee\u9898&#xff1a;RAID \u6709\u54ea\u4e9b\u7ea7\u522b&#xff1f;\u8f6f\u94fe\u63a5\u548c\u786c\u94fe\u63a5\u6709\u4ec0\u4e48\u533a\u522b&#xff1f;BIO\u3001NIO\u3001AIO \u53c8\u5206\u522b\u4ee3\u8868\u4ec0\u4e48&#xff1f;\u5176\u5b9e&#xff0c;\u8fd9\u4e9b\u77e5\u8bc6\u90fd\u548c\u201c\u6570\u636e\u5982\u4f55\u5b58\u50a8\u3001\u5982\u4f55\u88ab\u7a0b\u5e8f\u8bfb\u53d6\u201d\u6709\u5173\u3002RAID \u89e3\u51b3\u7684\u662f\u78c1\u76d8\u5c42\u9762\u7684\u5bb9\u91cf\u3001\u6027\u80fd\u548c\u53ef\u9760\u6027\u95ee\u9898&#xff1b;\u8f6f\u786c\u94fe\u63a5\u5c5e\u4e8e\u6587\u4ef6\u7cfb\u7edf&#xff1b;\u5404\u79cd I\/O \u6a21\u578b\u5219\u51b3\u5b9a\u4e86\u7a0b\u5e8f\u7b49\u5f85\u548c\u8bfb\u53d6\u6570\u636e\u7684\u65b9\u5f0f\u3002\u4e00\u3001\u4ec0\u4e48\u662f RAIDRA<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[11653,99,58],"topic":[],"class_list":["post-103811","post","type-post","status-publish","format-standard","hentry","category-server","tag-11653","tag-java","tag-linux"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - 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