{"id":300028,"date":"2024-05-20T17:32:13","date_gmt":"2024-05-20T09:32:13","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/300028.html"},"modified":"2024-05-20T17:32:29","modified_gmt":"2024-05-20T09:32:29","slug":"%e5%a6%82%e4%bd%95%e7%bb%99-linux-%e8%bf%9b%e7%a8%8b%e8%ae%be%e7%bd%ae%e5%ae%9e%e6%97%b6%e4%bc%98%e5%85%88%e7%ba%a7","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/300028.html","title":{"rendered":"\u5982\u4f55\u7ed9 linux \u8fdb\u7a0b\u8bbe\u7f6e\u5b9e\u65f6\u4f18\u5148\u7ea7"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/26211218\/1672a76b-2cdc-42c7-b984-1a2fbbbcbaa2-1.webp\" alt=\"\u5982\u4f55\u7ed9 linux \u8fdb\u7a0b\u8bbe\u7f6e\u5b9e\u65f6\u4f18\u5148\u7ea7\" \/><\/p>\n<p><p>\u5b9e\u65f6\u4f18\u5148\u7ea7\u662f\u6307\u5206\u914d\u7ed9\u8fdb\u7a0b\u7684\u8861\u91cf\u5176\u91cd\u8981\u6027\u548c\u7d27\u8feb\u6027\u7684\u6570\u503c\uff0c\u53ef\u901a\u8fc7\u64cd\u4f5c\u7cfb\u7edf\u6765\u7ba1\u7406\u8fdb\u7a0b\u8fd0\u884c\u7684\u987a\u5e8f\u3002\u5728Linux\u4e2d\uff0c<strong>\u5b9e\u65f6\u4f18\u5148\u7ea7\u5141\u8bb8\u8fdb\u7a0b\u83b7\u5f97\u66f4\u9ad8\u7684\u6267\u884c\u4f18\u5148\u7ea7\uff0c\u4fdd\u8bc1\u5173\u952e\u4efb\u52a1\u7684\u53ca\u65f6\u6027\u548c\u54cd\u5e94\u6027<\/strong>\u3002\u6839\u636ePOSIX\u6807\u51c6\uff0cLinux\u5b9e\u73b0\u4e86\u4e24\u5957\u5b9e\u65f6\u4f18\u5148\u7ea7\u673a\u5236\uff1a\u4e00\u79cd\u662f\u57fa\u4e8eSCHED_FIFO\u548cSCHED_RR\u7b56\u7565\u7684\u9759\u6001\u5b9e\u65f6\u8c03\u5ea6\u7c7b\uff0c\u53e6\u4e00\u79cd\u662fSCHED_DEADLINE\u7b56\u7565\uff0c\u6700\u8fd1\u51e0\u5e74\u65b0\u589e\u7684\u52a8\u6001\u5b9e\u65f6\u8c03\u5ea6\u7c7b\u3002<strong>\u4f7f\u7528<code>chrt<\/code>\u547d\u4ee4\u6216\u7f16\u7a0b\u65b9\u5f0f\u53ef\u4ee5\u4e3aLinux\u8fdb\u7a0b\u8bbe\u7f6e\u5b9e\u65f6\u4f18\u5148\u7ea7<\/strong>\u3002<\/p>\n<\/p>\n<p><p>\u8981\u8be6\u7ec6\u63cf\u8ff0\u7684\u4e00\u70b9\u662f<code>chrt<\/code>\u547d\u4ee4\u7684\u4f7f\u7528\u3002<code>chrt<\/code>\u662f\u4e00\u4e2a\u4e13\u4e3a\u4fee\u6539Linux\u8fdb\u7a0b\u5b9e\u65f6\u4f18\u5148\u7ea7\u800c\u8bbe\u8ba1\u7684\u547d\u4ee4\u884c\u5de5\u5177\u3002\u5b83\u5141\u8bb8\u7ba1\u7406\u5458\u5bf9\u8fd0\u884c\u4e2d\u7684\u8fdb\u7a0b\u6216\u65b0\u542f\u52a8\u7684\u8fdb\u7a0b\u6307\u5b9a\u4e0d\u540c\u7684\u5b9e\u65f6\u8c03\u5ea6\u7b56\u7565\u548c\u4f18\u5148\u7ea7\u3002\u4f7f\u7528<code>chrt<\/code>\u547d\u4ee4\u53ef\u4ee5\u63d0\u9ad8\u5173\u952e\u8fdb\u7a0b\u7684\u54cd\u5e94\u65f6\u95f4\uff0c\u5f88\u6709\u7528\u4e8e\u9700\u8981\u9ad8\u5ea6\u53ef\u9760\u6027\u548c\u5b9e\u65f6\u54cd\u5e94\u7684\u7cfb\u7edf\u73af\u5883\u4e2d\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u4e86\u89e3\u5b9e\u65f6\u4f18\u5148\u7ea7<\/h3>\n<\/p>\n<p><p>\u5b9e\u65f6\u4f18\u5148\u7ea7\u4e3a\u7cfb\u7edf\u4e2d\u7684\u6bcf\u4e2a\u8fdb\u7a0b\u5206\u914d\u4e86\u4e00\u4e2a\u5177\u4f53\u7684\u4f18\u5148\u7ea7\uff0c<strong>\u9ad8\u5b9e\u65f6\u4f18\u5148\u7ea7\u7684\u8fdb\u7a0b\u5c06\u4f1a\u8d85\u8d8a\u666e\u901a\u8fdb\u7a0b\u4f18\u5148\u6267\u884c<\/strong>\uff0c\u8fd9\u5bf9\u4e8e\u90a3\u4e9b\u9700\u8981\u53ca\u65f6\u54cd\u5e94\u7684\u4efb\u52a1\u5c24\u5176\u5173\u952e\u3002Linux\u64cd\u4f5c\u7cfb\u7edf\u4e2d\uff0c\u901a\u5e38\u91c7\u7528\u7684\u662f<code>nice<\/code>\u7ea7\u522b\u6765\u51b3\u5b9a\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u4f46\u5b9e\u65f6\u8fdb\u7a0b\u5219\u6709\u7740\u72ec\u7acb\u4e8e<code>nice<\/code>\u7ea7\u522b\u7684\u53e6\u5916\u4e00\u5957\u4f18\u5148\u7ea7\u7cfb\u7edf\uff0c\u5373\u5b9e\u65f6\u4f18\u5148\u7ea7\u3002<\/p>\n<\/p>\n<p><p>\u5b9e\u65f6\u8fdb\u7a0b\u4e4b\u6240\u4ee5\u7279\u522b\uff0c\u662f\u56e0\u4e3a\u5b83\u4eec\u80fd\u591f\u4f7f\u7528\u4e24\u79cd\u5b9e\u65f6\u8c03\u5ea6\u7b56\u7565: <code>SCHED_FIFO<\/code>\uff08\u5148\u5230\u5148\u670d\u52a1\uff09\u548c<code>SCHED_RR<\/code>\uff08\u65f6\u95f4\u7247\u8f6e\u8f6c\uff09\u3002\u8fd9\u4e24\u79cd\u5b9e\u65f6\u8c03\u5ea6\u7b56\u7565\u4f1a\u786e\u4fdd\u5177\u6709\u5b9e\u65f6\u4f18\u5148\u7ea7\u7684\u8fdb\u7a0b\u5728\u975e\u5b9e\u65f6\u8fdb\u7a0b\u4e4b\u524d\u6267\u884c\uff0c\u751a\u81f3\u662f\u5728\u8fd0\u884c\u7684\u7cfb\u7edf\u548c\u5e94\u7528\u7a0b\u5e8f\u4e4b\u4e0a\u3002<\/p>\n<\/p>\n<p><h3>\u4e8c\u3001\u5229\u7528<code>chrt<\/code>\u547d\u4ee4\u8bbe\u7f6e\u5b9e\u65f6\u4f18\u5148\u7ea7<\/h3>\n<\/p>\n<p><p><strong><code>chrt<\/code>\u547d\u4ee4\u80fd\u591f\u8c03\u6574\u8fd0\u884c\u4e2d\u8fdb\u7a0b\u7684\u8c03\u5ea6\u7b56\u7565\u548c\u5b9e\u65f6\u4f18\u5148\u7ea7<\/strong>\u3002\u5b83\u4f7f\u7528\u7b80\u5355\u7684\u547d\u4ee4\u884c\u9009\u9879\u6765\u8bbe\u5b9a\u6240\u9700\u7684\u7b56\u7565\u548c\u4f18\u5148\u7ea7\u3002\u4f7f\u7528\u8be5\u547d\u4ee4\uff0c\u60a8\u53ef\u4ee5\u67e5\u8be2\u8fdb\u7a0b\u7684\u5f53\u524d\u5b9e\u65f6\u4f18\u5148\u7ea7\u6216\u4e3a\u8fdb\u7a0b\u8bbe\u7f6e\u65b0\u7684\u4f18\u5148\u7ea7\u3002<\/p>\n<\/p>\n<p><p><strong>\u67e5\u8be2\u8fdb\u7a0b\u7684\u5b9e\u65f6\u4f18\u5148\u7ea7<\/strong><\/p>\n<\/p>\n<p><p>\u8981\u67e5\u770b\u4e00\u4e2a\u8fdb\u7a0b\u7684\u5b9e\u65f6\u4f18\u5148\u7ea7\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<\/p>\n<p><pre><code>chrt -p &lt;pid&gt;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u91cc\u7684<code>&lt;pid&gt;<\/code>\u9700\u8981\u66ff\u6362\u4e3a\u4f60\u60f3\u67e5\u8be2\u7684\u8fdb\u7a0b\u7684PID\u3002\u547d\u4ee4\u6267\u884c\u540e\uff0c\u4f1a\u663e\u793a\u8be5\u8fdb\u7a0b\u7684\u5f53\u524d\u8c03\u5ea6\u7b56\u7565\u548c\u5b9e\u65f6\u4f18\u5148\u7ea7\u3002<\/p>\n<\/p>\n<p><p><strong>\u8bbe\u7f6e\u5b9e\u65f6\u4f18\u5148\u7ea7<\/strong><\/p>\n<\/p>\n<p><p>\u4e86\u89e3\u5b9e\u65f6\u4f18\u5148\u7ea7\u4e4b\u540e\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u683c\u5f0f\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u5b9e\u65f6\u4f18\u5148\u7ea7\uff1a<\/p>\n<\/p>\n<p><pre><code>chrt -f -p &lt;priority&gt; &lt;pid&gt;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u91cc\uff0c<code>-f<\/code>\u4ee3\u8868<code>SCHED_FIFO<\/code>\u7b56\u7565\uff0c<code>-p<\/code>\u7528\u4e8e\u6307\u5b9a\u4f18\u5148\u7ea7\uff0c\u800c<code>&lt;priority&gt;<\/code>\u548c<code>&lt;pid&gt;<\/code>\u5219\u5206\u522b\u4e3a\u6240\u9700\u8bbe\u7f6e\u7684\u4f18\u5148\u7ea7\u6570\u503c\u548c\u8fdb\u7a0bID\u3002\u4f7f\u7528<code>-r<\/code>\u9009\u9879\u53ef\u4ee5\u5c06\u8c03\u5ea6\u7b56\u7565\u8bbe\u7f6e\u4e3a<code>SCHED_RR<\/code>\u3002<\/p>\n<\/p>\n<p><h3>\u4e09\u3001\u901a\u8fc7\u7f16\u7a0b\u65b9\u5f0f\u8bbe\u7f6e\u5b9e\u65f6\u4f18\u5148\u7ea7<\/h3>\n<\/p>\n<p><p>\u9664\u4e86\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u60a8\u4e5f\u53ef\u4ee5\u901a\u8fc7\u7f16\u7a0b\u7684\u65b9\u5f0f\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u5b9e\u65f6\u4f18\u5148\u7ea7\u3002\u8fd9\u901a\u5e38\u6d89\u53ca\u5230\u5bf9<code>sched_setscheduler<\/code>\u53ca\u76f8\u5173\u7cfb\u7edf\u8c03\u7528\u7684\u4f7f\u7528\u3002<\/p>\n<\/p>\n<p><p><strong>\u4f7f\u7528 <code>sched_setscheduler<\/code> \u8bbe\u7f6e\u4f18\u5148\u7ea7<\/strong><\/p>\n<\/p>\n<p><p>\u5728C\u8bed\u8a00\u4e2d\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7<code>&lt;sched.h&gt;<\/code>\u5934\u6587\u4ef6\u4e2d\u5b9a\u4e49\u7684<code>sched_setscheduler<\/code>\u51fd\u6570\u6765\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u5b9e\u65f6\u4f18\u5148\u7ea7\u3002<code>sched_setscheduler<\/code>\u51fd\u6570\u5141\u8bb8\u60a8\u6307\u5b9a\u8fdb\u7a0bID\u3001\u8c03\u5ea6\u7b56\u7565\u53ca\u5176\u5bf9\u5e94\u7684<code>sched_param<\/code>\u7ed3\u6784\uff0c\u540e\u8005\u5305\u542b\u4e86\u5b9e\u65f6\u4f18\u5148\u7ea7\u7684\u4fe1\u606f\u3002<\/p>\n<\/p>\n<p><p><strong>\u4f8b\u5b50<\/strong><\/p>\n<\/p>\n<p><p>\u4e0b\u9762\u7684\u4ee3\u7801\u7247\u6bb5\u5c55\u793a\u4e86\u5982\u4f55\u4e3a\u7279\u5b9a\u7684\u8fdb\u7a0b\u8bbe\u7f6e\u5b9e\u65f6\u4f18\u5148\u7ea7\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-c\">#include &lt;stdio.h&gt;<\/p>\n<p>#include &lt;stdlib.h&gt;<\/p>\n<p>#include &lt;unistd.h&gt;<\/p>\n<p>#include &lt;sched.h&gt;<\/p>\n<p>int m<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>n(int argc, char *argv[]) {<\/p>\n<p>    int pid;<\/p>\n<p>    struct sched_param param;<\/p>\n<p>    if (argc != 3) {<\/p>\n<p>        fprintf(stderr, &quot;Usage: %s &lt;pid&gt; &lt;priority&gt;\\n&quot;, argv[0]);<\/p>\n<p>        return 1;<\/p>\n<p>    }<\/p>\n<p>    pid = atoi(argv[1]);<\/p>\n<p>    param.sched_priority = atoi(argv[2]);<\/p>\n<p>    if (sched_setscheduler(pid, SCHED_FIFO, &amp;param) != 0) {<\/p>\n<p>        perror(&quot;sched_setscheduler&quot;);<\/p>\n<p>        return 1;<\/p>\n<p>    }<\/p>\n<p>    return 0;<\/p>\n<p>}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>sched_setscheduler<\/code>\u88ab\u7528\u6765\u628a\u4e00\u4e2a\u6307\u5b9aPID\u7684\u8fdb\u7a0b\u8bbe\u7f6e\u4e3a<code>SCHED_FIFO<\/code>\u5b9e\u65f6\u7b56\u7565\uff0c\u5e76\u8d4b\u4e88\u4e00\u4e2a\u65b0\u7684\u5b9e\u65f6\u4f18\u5148\u7ea7\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u6ce8\u610f\u548c\u9650\u5236<\/h3>\n<\/p>\n<p><p><strong>\u9700\u8981\u6ce8\u610f\u5b9e\u65f6\u4f18\u5148\u7ea7\u8bbe\u7f6e\u662f\u4e00\u4e2a\u9700\u8981\u7cfb\u7edf\u6743\u9650\u7684\u64cd\u4f5c<\/strong>\u3002\u901a\u5e38\u53ea\u6709\u5177\u6709root\u6743\u9650\u7684\u7528\u6237\u624d\u80fd\u591f\u6539\u53d8\u8fdb\u7a0b\u7684\u5b9e\u65f6\u4f18\u5148\u7ea7\u3002\u6b64\u5916\uff0c\u5b9e\u65f6\u4f18\u5148\u7ea7\u7684\u8bbe\u7f6e\u8303\u56f4\u901a\u5e38\u4ecb\u4e8e1\u523099\u4e4b\u95f4\uff0c\u5177\u4f53\u7684\u8303\u56f4\u548c\u9650\u5236\u53ef\u80fd\u4f1a\u968f\u7740\u7cfb\u7edf\u548c\u6838\u5fc3\u7248\u672c\u4e0d\u540c\u800c\u6709\u6240\u4e0d\u540c\u3002<\/p>\n<\/p>\n<p><p><strong>\u4e0d\u6070\u5f53\u5730\u8bbe\u7f6e\u5b9e\u65f6\u4f18\u5148\u7ea7\u53ef\u80fd\u5bfc\u81f4\u7cfb\u7edf\u4e0d\u7a33\u5b9a<\/strong>\uff0c\u56e0\u4e3a\u9ad8\u4f18\u5148\u7ea7\u7684\u5b9e\u65f6\u8fdb\u7a0b\u53ef\u80fd\u4f1a\u5360\u7528\u5927\u91cf\u7684CPU\u65f6\u95f4\uff0c\u7559\u7ed9\u5176\u4ed6\u8fdb\u51fa\u8f83\u5c11\u7684\u5904\u7406\u65f6\u95f4\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u5176\u4ed6\u90e8\u5206\u54cd\u5e94\u53d8\u6162\u6216\u8005\u5b8c\u5168\u65e0\u54cd\u5e94\u3002\u7531\u4e8e\u8fd9\u4e9b\u6f5c\u5728\u7684\u98ce\u9669\uff0c\u53ea\u6709\u5728\u786e\u5b9e\u9700\u8981\u65f6\u624d\u5e94\u8be5\u8bbe\u7f6e\u5b9e\u65f6\u4f18\u5148\u7ea7\uff0c\u5e76\u4e14\u4f60\u9700\u8981\u786e\u4fdd\u4f60\u77e5\u9053\u4f60\u5728\u505a\u4ec0\u4e48\u3002<\/p>\n<\/p>\n<p><h3>\u4e94\u3001\u5b9e\u8df5\u5e94\u7528<\/h3>\n<\/p>\n<p><p>\u5728\u5b9e\u65f6\u7cfb\u7edf\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u5b9e\u65f6\u4f18\u5148\u7ea7\u662f\u786e\u4fdd\u5173\u952e\u4efb\u52a1\u53ca\u65f6\u5b8c\u6210\u7684\u5173\u952e\u3002<strong>\u5728\u5b9e\u9645\u5e94\u7528\u7a0b\u5e8f\u4e2d\u8bbe\u7f6e\u5b9e\u65f6\u4f18\u5148\u7ea7\u8981\u8c28\u614e\u884c\u4e8b<\/strong>\uff0c\u5b83\u901a\u5e38\u7528\u5728\u5bf9\u5b9e\u65f6\u6027\u8981\u6c42\u6781\u9ad8\u7684\u9886\u57df\uff0c\u5982\u97f3\u89c6\u9891\u5904\u7406\u3001\u5de5\u4e1a\u63a7\u5236\u7b49\u9886\u57df\u3002<\/p>\n<\/p>\n<p><p>\u4f8b\u5982\uff0c\u4e00\u4e2a\u97f3\u9891\u5904\u7406\u8f6f\u4ef6\u53ef\u4ee5\u901a\u8fc7\u63d0\u9ad8\u5176\u5904\u7406\u7ebf\u7a0b\u7684\u5b9e\u65f6\u4f18\u5148\u7ea7\u6765\u9632\u6b62\u97f3\u9891\u5361\u987f\u3002\u5728\u5de5\u4e1a\u673a\u5668\u4eba\u63a7\u5236\u7cfb\u7edf\u4e2d\uff0c\u63a7\u5236\u7b97\u6cd5\u7684\u6267\u884c\u7ebf\u7a0b\u53ef\u80fd\u4f1a\u88ab\u8bbe\u7f6e\u4e3a\u9ad8\u5b9e\u65f6\u4f18\u5148\u7ea7\uff0c\u4ee5\u786e\u4fdd\u673a\u5668\u4eba\u52a8\u4f5c\u7684\u7cbe\u51c6\u548c\u53ca\u65f6\u3002<\/p>\n<\/p>\n<p><p>\u603b\u800c\u8a00\u4e4b\uff0c\u7ed9Linux\u8fdb\u7a0b\u8bbe\u7f6e\u5b9e\u65f6\u4f18\u5148\u7ea7\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u8c03\u4f18\u624b\u6bb5\uff0c\u5b83\u4f7f\u5f97\u5f00\u53d1\u8005\u548c\u7cfb\u7edf\u7ba1\u7406\u5458\u80fd\u591f\u786e\u4fdd\u5173\u952e\u4efb\u52a1\u80fd\u591f\u4ee5\u6700\u9ad8\u6548\u7387\u8fd0\u884c\u3002\u7136\u800c\uff0c\u4e0d\u5f53\u4f7f\u7528\u4e5f\u4f1a\u5e26\u6765\u7cfb\u7edf\u4e0d\u7a33\u5b9a\u548c\u6027\u80fd\u4e0b\u964d\u7684\u98ce\u9669\uff0c\u56e0\u6b64\u5b83\u5fc5\u987b\u5728\u4ed4\u7ec6\u8003\u8651\u5e76\u7406\u89e3\u5176\u5f71\u54cd\u7684\u57fa\u7840\u4e0a\u8fdb\u884c\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>\u5982\u4f55\u4e3a Linux \u8fdb\u7a0b\u5206\u914d\u5b9e\u65f6\u4f18\u5148\u7ea7\uff1f<\/strong><\/p>\n<ul>\n<li>\n<p>\u4ec0\u4e48\u662f\u5b9e\u65f6\u4f18\u5148\u7ea7\uff1f<br \/>\n\u5b9e\u65f6\u4f18\u5148\u7ea7\u662f\u64cd\u4f5c\u7cfb\u7edf\u4e3a\u8fdb\u7a0b\u5206\u914d\u7684\u4f18\u5148\u7ea7\uff0c\u7528\u4e8e\u786e\u5b9a\u8fdb\u7a0b\u5728\u7ade\u4e89\u8d44\u6e90\u65f6\u7684\u8c03\u5ea6\u987a\u5e8f\u3002\u8f83\u9ad8\u7684\u5b9e\u65f6\u4f18\u5148\u7ea7\u610f\u5473\u7740\u8fdb\u7a0b\u80fd\u591f\u66f4\u5feb\u5730\u8bbf\u95ee\u5171\u4eab\u8d44\u6e90\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u4f55\u7ed9 Linux \u8fdb\u7a0b\u8bbe\u7f6e\u5b9e\u65f6\u4f18\u5148\u7ea7\uff1f<\/p>\n<\/li>\n<\/ul>\n<ol>\n<li>\u4f7f\u7528 <code>nice<\/code> \u547d\u4ee4\uff1a<code>nice<\/code> \u547d\u4ee4\u7528\u4e8e\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u53ef\u4ee5\u4f7f\u8fdb\u7a0b\u5728\u7cfb\u7edf\u8d44\u6e90\u6709\u9650\u7684\u60c5\u51b5\u4e0b\u5f97\u5230\u66f4\u591a\u7684\u8d44\u6e90\u3002\u4f8b\u5982\uff0c<code>nice -n -20 &lt;command&gt;<\/code> \u5c06\u4f1a\u4ee5\u6700\u9ad8\u4f18\u5148\u7ea7\u8fd0\u884c <code>&lt;command&gt;<\/code>\u3002<\/li>\n<li>\u4f7f\u7528 <code>renice<\/code> \u547d\u4ee4\uff1a<code>renice<\/code> \u547d\u4ee4\u53ef\u7528\u4e8e\u4fee\u6539\u5df2\u7ecf\u8fd0\u884c\u7684\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u3002\u4f8b\u5982\uff0c<code>renice -n -20 -p &lt;pid&gt;<\/code> \u5c06\u4f1a\u5c06\u8fdb\u7a0b <code>&lt;pid&gt;<\/code> \u7684\u4f18\u5148\u7ea7\u8bbe\u7f6e\u4e3a\u6700\u9ad8\u3002<\/li>\n<\/ol>\n<ul>\n<li>\u5982\u4f55\u786e\u8ba4\u8fdb\u7a0b\u7684\u5b9e\u65f6\u4f18\u5148\u7ea7\u662f\u5426\u8bbe\u7f6e\u6210\u529f\uff1f<br \/>\n\u53ef\u4ee5\u4f7f\u7528 <code>top<\/code> \u547d\u4ee4\u6216\u8005 <code>ps<\/code> \u547d\u4ee4\u6765\u67e5\u770b\u8fdb\u7a0b\u7684\u5b9e\u65f6\u4f18\u5148\u7ea7\u3002\u5728\u8fd9\u4e9b\u547d\u4ee4\u7684\u8f93\u51fa\u4e2d\uff0c\u5b9e\u65f6\u4f18\u5148\u7ea7\u901a\u5e38\u4f1a\u4ee5\u6570\u5b57\u5f62\u5f0f\u663e\u793a\uff0c\u6570\u5b57\u8d8a\u4f4e\u8868\u793a\u4f18\u5148\u7ea7\u8d8a\u9ad8\u3002<\/li>\n<\/ul>\n<p><strong>\u600e\u6837\u4e3a Linux \u8fdb\u7a0b\u5206\u914d\u5b9e\u65f6\u4f18\u5148\u7ea7\uff1f<\/strong><\/p>\n<ul>\n<li>\n<p>\u4ec0\u4e48\u662f\u5b9e\u65f6\u4f18\u5148\u7ea7\uff1f<br \/>\n\u5b9e\u65f6\u4f18\u5148\u7ea7\u662f Linux \u7cfb\u7edf\u4e2d\u7528\u4e8e\u786e\u5b9a\u8fdb\u7a0b\u8c03\u5ea6\u987a\u5e8f\u7684\u4e00\u4e2a\u6307\u6807\u3002\u8f83\u9ad8\u7684\u5b9e\u65f6\u4f18\u5148\u7ea7\u610f\u5473\u7740\u8fdb\u7a0b\u80fd\u591f\u66f4\u5feb\u5730\u8bbf\u95ee\u7cfb\u7edf\u8d44\u6e90\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u4f55\u4e3a\u8fdb\u7a0b\u5206\u914d\u5b9e\u65f6\u4f18\u5148\u7ea7\uff1f<br \/>\n\u5728 Linux \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>chrt<\/code> \u547d\u4ee4\u6765\u4e3a\u8fdb\u7a0b\u5206\u914d\u5b9e\u65f6\u4f18\u5148\u7ea7\u3002\u4f8b\u5982\uff0c<code>chrt -r -p &lt;priority&gt; &lt;pid&gt;<\/code> \u547d\u4ee4\u4f1a\u5c06\u8fdb\u7a0b <code>&lt;pid&gt;<\/code> \u7684\u5b9e\u65f6\u4f18\u5148\u7ea7\u8bbe\u7f6e\u4e3a <code>&lt;priority&gt;<\/code>\u3002<\/p>\n<\/li>\n<li>\n<p>\u5b9e\u65f6\u4f18\u5148\u7ea7\u6709\u54ea\u4e9b\u7ea7\u522b\uff1f<br \/>\nLinux \u4e2d\u7684\u5b9e\u65f6\u4f18\u5148\u7ea7\u8303\u56f4\u4ece 1 \u5230 99\uff0c\u6570\u5b57\u8d8a\u4f4e\u8868\u793a\u4f18\u5148\u7ea7\u8d8a\u9ad8\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong>Linux \u8fdb\u7a0b\u5b9e\u65f6\u4f18\u5148\u7ea7\u7684\u8bbe\u7f6e\u65b9\u6cd5\u662f\u4ec0\u4e48\uff1f<\/strong><\/p>\n<ul>\n<li>\n<p>\u4ec0\u4e48\u662f Linux \u8fdb\u7a0b\u7684\u5b9e\u65f6\u4f18\u5148\u7ea7\uff1f<br \/>\nLinux \u8fdb\u7a0b\u7684\u5b9e\u65f6\u4f18\u5148\u7ea7\u662f\u4e00\u4e2a\u7528\u4e8e\u8c03\u5ea6\u8fdb\u7a0b\u7684\u6570\u503c\uff0c\u8be5\u6570\u503c\u8d8a\u4f4e\u8868\u793a\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u8d8a\u9ad8\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u4f55\u4e3a Linux \u8fdb\u7a0b\u8bbe\u7f6e\u5b9e\u65f6\u4f18\u5148\u7ea7\uff1f<br \/>\n\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4e24\u79cd\u65b9\u6cd5\u4e3a Linux \u8fdb\u7a0b\u8bbe\u7f6e\u5b9e\u65f6\u4f18\u5148\u7ea7\uff1a<\/p>\n<\/li>\n<\/ul>\n<ol>\n<li>\u4f7f\u7528 <code>sched_setscheduler<\/code> \u51fd\u6570\uff1a\u8be5\u51fd\u6570\u53ef\u4ee5\u5728\u4ee3\u7801\u4e2d\u8c03\u7528\u6765\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u5b9e\u65f6\u4f18\u5148\u7ea7\u3002<\/li>\n<li>\u4f7f\u7528 <code>chrt<\/code> \u547d\u4ee4\uff1a<code>chrt<\/code> 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