{"id":62795,"date":"2025-04-29T11:22:07","date_gmt":"2025-04-29T03:22:07","guid":{"rendered":"https:\/\/fwq.ai\/blog\/62795\/"},"modified":"2025-04-29T11:22:07","modified_gmt":"2025-04-29T03:22:07","slug":"%e5%a6%82%e4%bd%95%e4%bc%98%e5%8c%96linux%e7%b3%bb%e7%bb%9f%e7%9a%84%e6%96%87%e4%bb%b6i-o%e6%80%a7%e8%83%bd%e5%92%8c%e5%ad%98%e5%82%a8%e6%80%a7%e8%83%bd-3","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/62795\/","title":{"rendered":"\u5982\u4f55\u4f18\u5316Linux\u7cfb\u7edf\u7684\u6587\u4ef6I\/O\u6027\u80fd\u548c\u5b58\u50a8\u6027\u80fd"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/887\/227\/169934178215332.jpg\" class=\"aligncenter\" title=\"\u5982\u4f55\u4f18\u5316Linux\u7cfb\u7edf\u7684\u6587\u4ef6I\/O\u6027\u80fd\u548c\u5b58\u50a8\u6027\u80fd\u63d2\u56fe\" alt=\"\u5982\u4f55\u4f18\u5316Linux\u7cfb\u7edf\u7684\u6587\u4ef6I\/O\u6027\u80fd\u548c\u5b58\u50a8\u6027\u80fd\u63d2\u56fe\" \/><\/p>\n<p>\u5982\u4f55\u4f18\u5316Linux\u7cfb\u7edf\u7684\u6587\u4ef6I\/O\u6027\u80fd\u548c\u5b58\u50a8\u6027\u80fd\uff0c\u9700\u8981\u5177\u4f53\u4ee3\u7801\u793a\u4f8b<\/p>\n<p>\u5f15\u8a00\uff1a<br \/>\u5728\u8fdb\u884cLinux\u7cfb\u7edf\u7684\u6587\u4ef6I\/O\u548c\u5b58\u50a8\u64cd\u4f5c\u65f6\uff0c\u4f18\u5316\u7cfb\u7edf\u7684\u6027\u80fd\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u901a\u8fc7\u63d0\u9ad8\u6587\u4ef6I\/O\u7684\u901f\u5ea6\u548c\u5b58\u50a8\u7684\u6548\u7387\uff0c\u53ef\u4ee5\u52a0\u5feb\u7cfb\u7edf\u7684\u54cd\u5e94\u901f\u5ea6\u548c\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u4f18\u5316Linux\u7cfb\u7edf\u6587\u4ef6I\/O\u548c\u5b58\u50a8\u6027\u80fd\u7684\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<p>\u4e00\u3001\u4f7f\u7528\u5408\u9002\u7684\u6587\u4ef6\u7cfb\u7edf<br \/>\u6587\u4ef6\u7cfb\u7edf\u662f\u5b58\u50a8\u6570\u636e\u7684\u7ec4\u7ec7\u65b9\u5f0f\uff0c\u9009\u62e9\u5408\u9002\u7684\u6587\u4ef6\u7cfb\u7edf\u53ef\u4ee5\u63d0\u9ad8\u6587\u4ef6I\/O\u6027\u80fd\u548c\u5b58\u50a8\u6027\u80fd\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u5e38\u7528\u7684\u6587\u4ef6\u7cfb\u7edf\u6709EXT4\u3001XFS\u3001Btrfs\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528XFS\u6587\u4ef6\u7cfb\u7edf\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre># \u5b89\u88c5XFS\u6587\u4ef6\u7cfb\u7edf\u652f\u6301\nsudo apt-get install -y xfsprogs\n\n# \u521b\u5efaXFS\u6587\u4ef6\u7cfb\u7edf\nsudo mkfs.xfs \/dev\/sdb1\n\n# \u6302\u8f7dXFS\u6587\u4ef6\u7cfb\u7edf\nsudo mount -t xfs \/dev\/sdb1 \/mnt\/data<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4e8c\u3001\u4f7f\u7528\u9002\u5f53\u7684\u8bfb\u5199\u65b9\u5f0f<br \/>\u5728\u8fdb\u884c\u6587\u4ef6I\/O\u64cd\u4f5c\u65f6\uff0c\u9009\u62e9\u9002\u5f53\u7684\u8bfb\u5199\u65b9\u5f0f\u4e5f\u662f\u4f18\u5316\u6027\u80fd\u7684\u91cd\u8981\u6b65\u9aa4\u3002\u4f8b\u5982\uff0c\u91c7\u7528\u4f7f\u7528\u7f13\u51b2\u533a\u7684\u65b9\u6cd5\u53ef\u4ee5\u51cf\u5c11\u78c1\u76d8I\/O\u7684\u6b21\u6570\uff0c\u63d0\u9ad8\u8bfb\u5199\u6548\u7387\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528\u7f13\u51b2\u533a\u8bfb\u5199\u6587\u4ef6\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre>#include &lt;stdio.h&gt;\n\nint main() {\n    FILE *fp;\n    char buffer[1024];\n\n    fp = fopen(\"data.txt\", \"rb\");\n    if (fp == NULL) {\n        printf(\"\u65e0\u6cd5\u6253\u5f00\u6587\u4ef6\uff01\");\n        return 1;\n    }\n\n    fread(buffer, sizeof(char), sizeof(buffer), fp);\n\n    \/\/ \u8fdb\u884c\u5404\u79cd\u64cd\u4f5c\n\n    fclose(fp);\n\n    return 0;\n}&lt;\/stdio.h&gt;<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4e09\u3001\u4f7f\u7528\u5f02\u6b65I\/O<br \/>\u5f02\u6b65I\/O\u662f\u4e00\u79cd\u53ef\u63d0\u9ad8\u6587\u4ef6I\/O\u6027\u80fd\u7684\u65b9\u6cd5\uff0c\u5b83\u5141\u8bb8\u5e94\u7528\u7a0b\u5e8f\u5728\u8fdb\u884c\u6587\u4ef6\u8bfb\u5199\u64cd\u4f5c\u7684\u540c\u65f6\u6267\u884c\u5176\u4ed6\u4efb\u52a1\u3002\u4f7f\u7528\u5f02\u6b65I\/O\u53ef\u4ee5\u51cf\u5c11\u963b\u585e\u7b49\u5f85\u65f6\u95f4\uff0c\u63d0\u9ad8\u7cfb\u7edf\u7684\u5e76\u53d1\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528\u5f02\u6b65I\/O\u8bfb\u5199\u6587\u4ef6\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre>#include &lt;stdio.h&gt;\n#include &lt;aio.h&gt;\n\nint main() {\n    int fd;\n    char buffer[1024];\n    struct aiocb aio;\n\n    fd = open(\"data.txt\", O_RDONLY);\n    if (fd &lt;p&gt;\u56db\u3001\u4f7f\u7528\u9ad8\u6548\u7684\u5b58\u50a8\u8bbe\u5907&lt;br&gt;\u4f7f\u7528\u9ad8\u6548\u7684\u5b58\u50a8\u8bbe\u5907\u4e5f\u80fd\u591f\u5f88\u5927\u7a0b\u5ea6\u4e0a\u63d0\u5347\u7cfb\u7edf\u7684\u6587\u4ef6I\/O\u6027\u80fd\u548c\u5b58\u50a8\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u56fa\u6001\u786c\u76d8\uff08SSD\uff09\u4ee3\u66ff\u4f20\u7edf\u7684\u673a\u68b0\u786c\u76d8\u53ef\u4ee5\u5927\u5e45\u63d0\u9ad8\u8bfb\u5199\u901f\u5ea6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528SSD\u5b58\u50a8\u7684\u793a\u4f8b\u4ee3\u7801\uff1a&lt;\/p&gt;\n&lt;pre class=\"brush:php;toolbar:false;\"&gt;#include &lt;stdio.h&gt;\n\nint main() {\n    FILE *fp;\n    char buffer[1024];\n\n    fp = fopen(\"\/dev\/nvme0n1\", \"rb\");\n    if (fp == NULL) {\n        printf(\"\u65e0\u6cd5\u6253\u5f00\u8bbe\u5907\uff01\");\n        return 1;\n    }\n\n    fread(buffer, sizeof(char), sizeof(buffer), fp);\n\n    \/\/ \u8fdb\u884c\u5404\u79cd\u64cd\u4f5c\n\n    fclose(fp);\n\n    return 0;\n}&lt;\/stdio.h&gt;<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4e94\u3001\u4f7f\u7528\u9ad8\u7ea7\u5b58\u50a8\u6280\u672f<br \/>\u9664\u4e86\u9009\u62e9\u9ad8\u6548\u7684\u8bbe\u5907\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u9ad8\u7ea7\u5b58\u50a8\u6280\u672f\u6765\u8fdb\u4e00\u6b65\u63d0\u5347\u6587\u4ef6I\/O\u6027\u80fd\u548c\u5b58\u50a8\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u4f7f\u7528RAID\uff08Redundant Array of Independent Disks\uff09\u53ef\u4ee5\u63d0\u9ad8\u78c1\u76d8\u7684\u5bb9\u9519\u6027\u548c\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528RAID 0\u548cRAID 5\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre># \u521b\u5efaRAID 0\nsudo mdadm --create \/dev\/md0 --level=0 --raid-devices=2 \/dev\/sdb1 \/dev\/sdc1\n\n# \u521b\u5efaRAID 5\nsudo mdadm --create --verbose \/dev\/md0 --level=5 --raid-devices=3 \/dev\/sdb1 \/dev\/sdc1 \/dev\/sdd1<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u7ed3\u8bba\uff1a<br \/>\u901a\u8fc7\u9009\u62e9\u5408\u9002\u7684\u6587\u4ef6\u7cfb\u7edf\u3001\u4f7f\u7528\u5408\u9002\u7684\u8bfb\u5199\u65b9\u5f0f\u3001\u4f7f\u7528\u5f02\u6b65I\/O\u3001\u4f7f\u7528\u9ad8\u6548\u7684\u5b58\u50a8\u8bbe\u5907\u548c\u4f7f\u7528\u9ad8\u7ea7\u5b58\u50a8\u6280\u672f\uff0c\u53ef\u4ee5\u4f18\u5316Linux\u7cfb\u7edf\u7684\u6587\u4ef6I\/O\u6027\u80fd\u548c\u5b58\u50a8\u6027\u80fd\uff0c\u63d0\u9ad8\u7cfb\u7edf\u7684\u54cd\u5e94\u901f\u5ea6\u548c\u7528\u6237\u4f53\u9a8c\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u4f18\u5316\u65b9\u6cd5\uff0c\u5e76\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8c03\u6574\u53c2\u6570\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63d0\u5347\u7cfb\u7edf\u7684\u6027\u80fd\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f18\u5316Linux\u7cfb\u7edf\u7684\u6587\u4ef6I\/O\u6027\u80fd\u548c\u5b58\u50a8\u6027\u80fd\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8FDCServers\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4f18\u5316Linux\u7cfb\u7edf\u7684\u6587\u4ef6I\/O\u6027\u80fd\u548c\u5b58\u50a8\u6027\u80fd\uff0c\u9700\u8981\u5177\u4f53\u4ee3\u7801\u793a\u4f8b \u5f15\u8a00\uff1a\u5728\u8fdb\u884cLinux\u7cfb\u7edf\u7684\u6587\u4ef6I\/O\u548c\u5b58\u50a8\u64cd\u4f5c\u65f6\uff0c\u4f18\u5316\u7cfb\u7edf\u7684\u6027\u80fd\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u901a\u8fc7\u63d0\u9ad8\u6587\u4ef6I\/O\u7684\u901f\u5ea6\u548c\u5b58\u50a8\u7684\u6548\u7387\uff0c\u53ef\u4ee5\u52a0\u5feb\u7cfb\u7edf\u7684\u54cd\u5e94\u901f\u5ea6\u548c\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u4f18\u5316Linux\u7cfb\u7edf\u6587\u4ef6I\/O\u548c\u5b58\u50a8\u6027\u80fd\u7684\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002 \u4e00\u3001\u4f7f\u7528\u5408\u9002\u7684\u6587\u4ef6\u7cfb\u7edf\u6587\u4ef6\u7cfb\u7edf\u662f\u5b58\u50a8\u6570\u636e\u7684\u7ec4\u7ec7\u65b9\u5f0f\uff0c\u9009\u62e9\u5408\u9002\u7684\u6587\u4ef6\u7cfb\u7edf\u53ef\u4ee5\u63d0\u9ad8\u6587\u4ef6I\/O\u6027\u80fd\u548c\u5b58\u50a8\u6027\u80fd\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u5e38\u7528\u7684\u6587\u4ef6\u7cfb\u7edf\u6709EXT4\u3001XFS\u3001Btrfs\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528XFS\u6587\u4ef6\u7cfb\u7edf\u7684\u793a\u4f8b\u4ee3\u7801\uff1a # \u5b89\u88c5XFS\u6587\u4ef6\u7cfb\u7edf\u652f\u6301 sudo apt-get install -y xfsprogs # \u521b\u5efaXFS\u6587\u4ef6\u7cfb\u7edf sudo mkfs.xfs \/dev\/sdb1 # \u6302\u8f7dXFS\u6587\u4ef6\u7cfb\u7edf sudo mount -t xfs \/dev\/sdb1 \/mnt\/data \u767b\u5f55\u540e\u590d\u5236 \u4e8c\u3001\u4f7f\u7528\u9002\u5f53\u7684\u8bfb\u5199\u65b9\u5f0f\u5728\u8fdb\u884c\u6587\u4ef6I\/O\u64cd\u4f5c\u65f6\uff0c\u9009\u62e9\u9002\u5f53\u7684\u8bfb\u5199\u65b9\u5f0f\u4e5f\u662f\u4f18\u5316\u6027\u80fd\u7684\u91cd\u8981\u6b65\u9aa4\u3002\u4f8b\u5982\uff0c\u91c7\u7528\u4f7f\u7528\u7f13\u51b2\u533a\u7684\u65b9\u6cd5\u53ef\u4ee5\u51cf\u5c11\u78c1\u76d8I\/O\u7684\u6b21\u6570\uff0c\u63d0\u9ad8\u8bfb\u5199\u6548\u7387\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528\u7f13\u51b2\u533a\u8bfb\u5199\u6587\u4ef6\u7684\u793a\u4f8b\u4ee3\u7801\uff1a #include &lt;stdio.h&gt; int main() { FILE *fp; char buffer[1024]; fp = fopen(&#8220;data.txt&#8221;, &#8220;rb&#8221;); if (fp == NULL) { printf(&#8220;\u65e0\u6cd5\u6253\u5f00\u6587\u4ef6\uff01&#8221;); return 1; } fread(buffer, sizeof(char), sizeof(buffer), fp); \/\/ \u8fdb\u884c\u5404\u79cd\u64cd\u4f5c fclose(fp); return [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-62795","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/62795","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=62795"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/62795\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=62795"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=62795"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=62795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}