{"id":208738,"date":"2025-09-29T21:17:32","date_gmt":"2025-09-29T13:17:32","guid":{"rendered":"https:\/\/www.server.hk\/blog\/208738\/"},"modified":"2025-09-29T21:17:32","modified_gmt":"2025-09-29T13:17:32","slug":"nice","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/208738\/","title":{"rendered":"\u9999\u6e2fVPS\u5b9e\u6218\uff1a\u8c03\u6574nice\u4f18\u5148\u7ea7\u5feb\u901f\u63d0\u5347CPU\u5229\u7528\u7387"},"content":{"rendered":"<p>\u5728\u4e91\u8ba1\u7b97\u4e0e\u7f51\u7ad9\u6258\u7ba1\u573a\u666f\u4e2d\uff0cCPU \u8d44\u6e90\u7684\u5408\u7406\u8c03\u5ea6\u76f4\u63a5\u5f71\u54cd\u670d\u52a1\u54cd\u5e94\u4e0e\u541e\u5410\u3002\u5bf9\u4e8e\u4f7f\u7528\u9999\u6e2fVPS \u7684\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u548c\u5f00\u53d1\u8005\uff0c\u9047\u5230\u5355\u53f0 VPS CPU \u5229\u7528\u7387\u4e0d\u8db3\u6216\u90e8\u5206\u8fdb\u7a0b\u5360\u7528\u8fc7\u9ad8\u7684\u60c5\u51b5\u65f6\uff0c\u901a\u8fc7\u8c03\u6574 Linux \u7684 <strong>nice<\/strong> \u4f18\u5148\u7ea7\u53ef\u4ee5\u5feb\u901f\u63d0\u5347\u5173\u952e\u4efb\u52a1\u7684 CPU \u5229\u7528\u6548\u7387\uff0c\u6539\u5584\u5ef6\u8fdf\u4e0e\u5e76\u53d1\u5904\u7406\u80fd\u529b\u3002\u672c\u6587\u5c06\u4ece\u539f\u7406\u5165\u624b\uff0c\u7ed3\u5408\u5e38\u89c1\u5e94\u7528\u573a\u666f\u3001\u4e0e\u5176\u4ed6\u65b9\u6cd5\uff08\u5982 cgroups\u3001CPU \u4eb2\u548c\u6027\uff09\u6bd4\u8f83\uff0c\u5e76\u7ed9\u51fa\u9009\u8d2d\u4e0e\u5b9e\u8df5\u5efa\u8bae\uff0c\u5e2e\u52a9\u4f60\u5728\u9999\u6e2f\u670d\u52a1\u5668\u6216\u7f8e\u56fdVPS \u7b49\u73af\u5883\u4e2d\u66f4\u52a0\u9ad8\u6548\u5730\u8c03\u5ea6\u8ba1\u7b97\u8d44\u6e90\u3002<\/p>\n<h2>\u57fa\u672c\u539f\u7406\uff1a\u4ec0\u4e48\u662f nice \u4e0e\u8c03\u5ea6\u4f18\u5148\u7ea7<\/h2>\n<p>\u5728\u7c7b UNIX \u7cfb\u7edf\u4e2d\uff0c\u8fdb\u7a0b\u8c03\u5ea6\u7531\u5185\u6838\u7684\u8c03\u5ea6\u5668\uff08\u5982 Completely Fair Scheduler\uff0cCFS\uff09\u8d1f\u8d23\u3002\u6bcf\u4e2a\u8fdb\u7a0b\u90fd\u6709\u4e00\u4e2a\u9759\u6001\u4f18\u5148\u7ea7\uff08nice \u503c\uff09\u548c\u52a8\u6001\u4f18\u5148\u7ea7\u3002nice \u503c\u8303\u56f4\u901a\u5e38\u4e3a -20\uff08\u6700\u9ad8\u4f18\u5148\u7ea7\uff09\u5230 +19\uff08\u6700\u4f4e\u4f18\u5148\u7ea7\uff09\u3002\u7cfb\u7edf\u9ed8\u8ba4\u542f\u52a8\u8fdb\u7a0b\u7684 nice \u503c\u4e3a 0\u3002<\/p>\n<p>\u8c03\u6574 nice \u503c\u5e76\u4e0d\u4f1a\u6539\u53d8\u8fdb\u7a0b\u5360\u7528\u7684 CPU \u65f6\u95f4\u603b\u91cf\uff0c\u800c\u662f\u6539\u53d8\u8fdb\u7a0b\u5728\u7ade\u4e89 CPU \u65f6\u7684\u6743\u91cd\u3002\u8f83\u4f4e\u7684 nice \u503c\uff08\u8d1f\u503c\uff09\u4f1a\u4f7f\u5185\u6838\u5728\u6709\u4e89\u7528\u65f6\u66f4\u503e\u5411\u4e8e\u8c03\u5ea6\u8be5\u8fdb\u7a0b\uff0c\u8f83\u9ad8\u7684 nice \u503c\uff08\u6b63\u503c\uff09\u5219\u8ba9\u8fdb\u7a0b\u9000\u8ba9\u3002\u901a\u8fc7\u547d\u4ee4\u884c\u5de5\u5177\u53ef\u4ee5\u5b9e\u65f6\u8c03\u6574\uff1a<\/p>\n<p>\u542f\u52a8\u8fdb\u7a0b\u65f6\u4f7f\u7528 nice\uff1anice -n 10 command<\/p>\n<p>\u4fee\u6539\u8fd0\u884c\u4e2d\u8fdb\u7a0b\u4f18\u5148\u7ea7\uff1arenice -n -5 -p PID<\/p>\n<p>\u6ce8\u610f\uff1a\u666e\u901a\u7528\u6237\u53ea\u80fd\u589e\u52a0 nice \u503c\uff08\u964d\u4f4e\u4f18\u5148\u7ea7\uff09\uff0c\u53ea\u6709 root \u6216\u5177\u5907\u76f8\u5e94\u6743\u9650\u7684\u7528\u6237\u624d\u80fd\u5c06 nice \u503c\u8bbe\u4e3a\u8d1f\u503c\u4ee5\u63d0\u9ad8\u4f18\u5148\u7ea7\u3002<\/p>\n<h3>\u8c03\u5ea6\u5668\u4e0e CPU \u4eb2\u548c\u6027\u7684\u914d\u5408<\/h3>\n<p>\u9664\u4e86 nice\uff0c\u8fd8\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e CPU \u4eb2\u548c\u6027\uff08taskset\uff09\u6765\u7ed1\u5b9a\u8fdb\u7a0b\u5230\u7279\u5b9a\u6838\uff0c\u8fd9\u5728\u591a\u6838 VPS\uff08\u4f8b\u5982\u9999\u6e2fVPS\uff09\u4e0a\u5c24\u4e3a\u6709\u6548\u3002\u7ed3\u5408 nice \u4f7f\u7528\u53ef\u4ee5\u5b9e\u73b0\uff1a<\/p>\n<ul>\n<li>\u5c06\u9ad8\u4f18\u5148\u7ea7\u7684\u8ba1\u7b97\u4efb\u52a1\u7ed1\u5b9a\u5230\u72ec\u5360\u6838\u5e76\u8bbe\u5b9a\u8f83\u4f4e\u7684 nice \u503c\uff1b<\/li>\n<li>\u5c06\u4f4e\u4f18\u5148\u7ea7\u7684\u540e\u53f0\u4efb\u52a1\uff08\u5907\u4efd\u3001\u6279\u5904\u7406\u3001\u65e5\u5fd7\u5904\u7406\uff09\u8bbe\u4e3a\u9ad8 nice \u503c\u5e76\u7ed1\u5b9a\u5230\u6b21\u8981\u6838\uff1b<\/li>\n<li>\u907f\u514d\u9891\u7e41\u7684 CPU \u7f13\u5b58\u5931\u6548\u4e0e\u8fc1\u79fb\uff0c\u63d0\u9ad8\u5355\u4efb\u52a1\u7684\u7a33\u5b9a\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2>\u5b9e\u9645\u5e94\u7528\u573a\u666f\u4e0e\u64cd\u4f5c\u5efa\u8bae<\/h2>\n<p>\u4e0b\u9762\u5217\u4e3e\u51e0\u4e2a\u5178\u578b\u573a\u666f\u5e76\u7ed9\u51fa\u5177\u4f53\u7684\u64cd\u4f5c\u5efa\u8bae\uff0c\u4fbf\u4e8e\u7ad9\u957f\u4e0e\u5f00\u53d1\u8005\u5728\u9999\u6e2f\u670d\u52a1\u5668\u6216\u7f8e\u56fd\u670d\u52a1\u5668\u7b49\u4e0d\u540c\u5730\u57df\u7684 VPS \u4e0a\u5feb\u901f\u5b9e\u8df5\uff1a<\/p>\n<h3>1. Web \u670d\u52a1\u9ad8\u5e76\u53d1\u54cd\u5e94\u4f18\u5316<\/h3>\n<p>\u573a\u666f\uff1aNginx\/Apache + PHP-FPM\/Node.js \u5728\u9ad8\u5e76\u53d1\u65f6\u51fa\u73b0\u8bf7\u6c42\u5ef6\u8fdf\u4e0a\u5347\u3002<\/p>\n<ul>\n<li>\u7ed9\u524d\u7aef\u8fdb\u7a0b\uff08\u5982 Nginx worker\u3001Node \u4e3b\u8fdb\u7a0b\uff09\u8bbe\u5b9a\u8f83\u4f4e\u7684 nice \u503c\uff08\u5982 -5 \u81f3 0\uff09\uff0c\u786e\u4fdd\u8bf7\u6c42\u5904\u7406\u7ebf\u7a0b\u5728\u4e89\u7528 CPU \u65f6\u4f18\u5148\u83b7\u5f97\u8c03\u5ea6\u3002<\/li>\n<li>\u5c06\u540e\u53f0\u4efb\u52a1\uff08\u4f8b\u5982\u6279\u91cf\u56fe\u7247\u5904\u7406\u3001\u65e5\u5fd7\u91c7\u96c6\uff09\u8bbe\u4e3a nice +10 \u6216 +15\uff0c\u907f\u514d\u62a2\u5360\u524d\u7aef\u670d\u52a1\u3002<\/li>\n<li>\u7ed3\u5408 CPU \u4eb2\u548c\u6027\uff0cNginx worker \u7ed1\u5b9a\u5230 0~3 \u53f7\u6838\uff0c\u8017 CPU \u7684\u6279\u5904\u7406\u7ed1\u5b9a\u5230 4~7 \u53f7\u6838\uff08\u89c6 VPS \u6838\u6570\u800c\u5b9a\uff09\u3002<\/li>\n<\/ul>\n<h3>2. \u6279\u5904\u7406\u4e0e\u79bb\u5cf0\u4efb\u52a1\u8c03\u5ea6<\/h3>\n<p>\u573a\u666f\uff1a\u6bcf\u5929\u591c\u95f4\u6709\u5927\u91cf\u6570\u636e\u6e05\u6d17\u6216\u5907\u4efd\u4efb\u52a1\u3002<\/p>\n<ul>\n<li>\u5c06\u8fd9\u4e9b\u6279\u5904\u7406\u811a\u672c\u8bbe\u4e3a nice +19\uff0c\u786e\u4fdd\u4e0d\u4f1a\u5f71\u54cd\u767d\u5929\u7684\u4e1a\u52a1\u5cf0\u503c\u3002<\/li>\n<li>\u4f7f\u7528 cron \u548c at \u8c03\u5ea6\u5728\u4f4e\u8d1f\u8f7d\u65f6\u6bb5\u542f\u52a8\uff0c\u5e76\u7ed3\u5408 ionice \u8c03\u6574\u78c1\u76d8 IO \u4f18\u5148\u7ea7\uff0c\u8fdb\u4e00\u6b65\u51cf\u5c11\u5bf9\u7ebf\u4e0a\u670d\u52a1\u7684\u5f71\u54cd\u3002<\/li>\n<\/ul>\n<h3>3. \u5bb9\u5668\u5316\u4e0e\u591a\u79df\u6237\u73af\u5883\u4f18\u5316<\/h3>\n<p>\u573a\u666f\uff1a\u5728 VPS \u4e0a\u8fd0\u884c\u591a\u4e2a\u5bb9\u5668\uff08Docker\uff09\u6216\u865a\u62df\u4e3b\u673a\u5b9e\u4f8b\u3002<\/p>\n<ul>\n<li>\u5728\u5bb9\u5668\u5c42\u9762\u53ef\u901a\u8fc7\u542f\u52a8\u53c2\u6570\u8bbe\u7f6e nice \u503c\u6216\u5728\u5bb9\u5668\u5185\u8fd0\u884c renice\u3002\u66f4\u7cbe\u7ec6\u7684\u63a7\u5236\u53ef\u91c7\u7528 cgroups v2\uff0c\u4e3a\u5bb9\u5668\u5206\u914d CPU shares\u3001quota \u4e0e cpuset\u3002<\/li>\n<li>\u5728\u591a\u79df\u6237\u573a\u666f\u4e0b\uff0c\u5408\u7406\u8bbe\u7f6e\u8d44\u6e90\u9650\u5236\u6bd4\u5355\u7eaf\u6539\u53d8 nice \u66f4\u80fd\u4fdd\u8bc1\u9694\u79bb\u4e0e\u7a33\u5b9a\u6027\uff1b\u4f46 nice \u4ecd\u53ef\u4f5c\u4e3a\u4e34\u65f6\u6551\u6025\u624b\u6bb5\u3002<\/li>\n<\/ul>\n<h2>\u4e0e\u5176\u4ed6\u8c03\u5ea6\u65b9\u6848\u7684\u4f18\u52bf\u5bf9\u6bd4<\/h2>\n<p>\u5728\u63d0\u5347 CPU \u5229\u7528\u7387\u4e0e\u54cd\u5e94\u80fd\u529b\u65b9\u9762\uff0cnice \u6709\u5176\u72ec\u7279\u7684\u4f18\u52bf\u4e0e\u5c40\u9650\uff0c\u4e86\u89e3\u8fd9\u4e9b\u6709\u52a9\u4e8e\u505a\u51fa\u5408\u7406\u9009\u62e9\u3002<\/p>\n<h3>nice \u7684\u4f18\u52bf<\/h3>\n<ul>\n<li><strong>\u7b80\u5355\u6613\u7528<\/strong>\uff1a\u65e0\u987b\u91cd\u542f\u670d\u52a1\uff0c\u8fd0\u884c\u65f6\u5373\u53ef\u8c03\u6574\u8fdb\u7a0b\u4f18\u5148\u7ea7\uff0c\u9002\u5408\u5feb\u901f\u6545\u969c\u5e94\u6025\u4e0e\u4e34\u65f6\u8c03\u4f18\u3002<\/li>\n<li>\u5bf9\u5ef6\u8fdf\u654f\u611f\u7684\u524d\u7aef\u670d\u52a1\u89c1\u6548\u660e\u663e\uff0c\u5c24\u5176\u5728 VPS \u8d44\u6e90\u6709\u9650\u7684\u60c5\u51b5\u4e0b\u80fd\u77ed\u65f6\u95f4\u5185\u7f13\u89e3\u7ade\u4e89\u3002<\/li>\n<\/ul>\n<h3>nice \u7684\u5c40\u9650<\/h3>\n<ul>\n<li>\u53ea\u80fd\u5f71\u54cd CPU \u8c03\u5ea6\u4f18\u5148\u7ea7\uff0c\u4e0d\u76f4\u63a5\u63a7\u5236 CPU \u65f6\u95f4\u914d\u989d\u6216 IO \u884c\u4e3a\u3002<\/li>\n<li>\u5728\u5185\u6838\u6216\u5bb9\u5668\u5c42\u9762\u8d44\u6e90\u9694\u79bb\u4e0d\u5145\u5206\u65f6\uff0cnice \u65e0\u6cd5\u4fdd\u8bc1\u957f\u671f\u7684\u670d\u52a1\u8d28\u91cf\uff08SLAs\uff09\u3002<\/li>\n<\/ul>\n<h3>cgroups \u4e0e quota \u7684\u4f18\u52bf<\/h3>\n<p>cgroups \u80fd\u5bf9 CPU\u3001\u5185\u5b58\u3001IO \u505a\u66f4\u7ec6\u7c92\u5ea6\u7684\u914d\u989d\u63a7\u5236\uff0c\u9002\u5408\u957f\u671f\u7684\u591a\u79df\u6237\u6216\u751f\u4ea7\u73af\u5883\u3002\u5efa\u8bae\u5c06 nice \u4f5c\u4e3a\u4e34\u65f6\u5de5\u5177\uff0c\u4e0e cgroups\u3001CPU quota\u3001cpuset \u7ed3\u5408\u4f7f\u7528\u53ef\u83b7\u5f97\u66f4\u7a33\u5b9a\u7684\u6548\u679c\u3002<\/p>\n<h2>\u76d1\u63a7\u4e0e\u9a8c\u8bc1\uff1a\u5982\u4f55\u8bc4\u4f30\u8c03\u4f18\u6548\u679c<\/h2>\n<p>\u4efb\u4f55\u53d8\u66f4\u90fd\u5e94\u57fa\u4e8e\u76d1\u63a7\u4e0e\u6570\u636e\u6765\u9a8c\u8bc1\u3002\u5e38\u7528\u5de5\u5177\u5305\u62ec top\/htop\u3001pidstat\u3001mpstat \u4ee5\u53ca perf\u3001sar\u3002<\/p>\n<ul>\n<li>\u4f7f\u7528 top\/htop \u67e5\u770b\u8fdb\u7a0b\u7684 NI\uff08nice\uff09\u5217\u4e0e %CPU\uff0c\u89c2\u5bdf\u91cd\u8c03\u4f18\u524d\u540e\u7684 CPU \u5206\u914d\u53d8\u5316\u3002<\/li>\n<li>\u7528 pidstat -u -p PID 1 \u89c2\u5bdf\u8fdb\u7a0b\u7684\u5e73\u5747 CPU \u4f7f\u7528\u7387\u3002<\/li>\n<li>\u82e5\u5728\u4e91\u73af\u5883\uff08\u5982\u9999\u6e2fVPS\uff09\u9047\u5230\u865a\u62df\u5316\u5c42\u9650\u6d41\uff0c\u5e94\u7ed3\u5408 hypervisor \u5c42\u9762\u7684\u76d1\u63a7\u4e0e\u4e3b\u673a\u63d0\u4f9b\u5546\u6307\u6807\u6765\u5224\u65ad\u74f6\u9888\u662f\u5426\u6765\u81ea\u5bbf\u4e3b\u673a\u3002<\/li>\n<\/ul>\n<h2>\u9009\u8d2d\u5efa\u8bae\uff1a\u5982\u4f55\u4e3a\u4e0d\u540c\u9700\u6c42\u9009\u62e9\u9999\u6e2fVPS \u6216 \u7f8e\u56fdVPS<\/h2>\n<p>\u5728\u9009\u62e9 VPS \u65f6\uff0c\u5e94\u6839\u636e\u8bbf\u95ee\u5730\u57df\u3001\u5ef6\u8fdf\u9700\u6c42\u4e0e\u8ba1\u7b97\u5f3a\u5ea6\u6765\u51b3\u5b9a\u3002\u4e0b\u9762\u662f\u9762\u5411\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\u7684\u51e0\u70b9\u5efa\u8bae\uff1a<\/p>\n<h3>\u9762\u5411\u4e2d\u56fd\u53ca\u4e9a\u6d32\u7528\u6237\u7684\u4f4e\u5ef6\u8fdf\u8bbf\u95ee<\/h3>\n<ul>\n<li>\u82e5\u76ee\u6807\u7528\u6237\u96c6\u4e2d\u5728\u4e2d\u56fd\u5927\u9646\u6216\u4e1c\u5357\u4e9a\uff0c\u4f18\u5148\u8003\u8651\u9999\u6e2fVPS \u6216 \u9999\u6e2f\u670d\u52a1\u5668\uff0c\u76f8\u6bd4\u7f8e\u56fd\u670d\u52a1\u5668 \u80fd\u83b7\u5f97\u66f4\u4f4e\u7684\u7f51\u7edc\u5ef6\u8fdf\u4e0e\u66f4\u7a33\u5b9a\u7684\u7ebf\u8def\uff0c\u5229\u4e8e Web \u5e94\u7528\u548c\u5b9e\u65f6\u4ea4\u4e92\u3002<\/li>\n<li>\u9009\u62e9\u5177\u6709\u72ec\u7acb CPU \u6838\u5fc3\u4e0e\u8f83\u9ad8\u5355\u6838\u6027\u80fd\u7684\u914d\u7f6e\uff0c\u4fbf\u4e8e\u901a\u8fc7 nice \u4f18\u5316\u5355\u7ebf\u7a0b\u8d1f\u8f7d\u7684\u54cd\u5e94\u3002<\/li>\n<\/ul>\n<h3>\u9762\u5411\u5168\u7403\u5206\u5e03\u7684\u540e\u53f0\u8ba1\u7b97\u6216\u6570\u636e\u5904\u7406<\/h3>\n<ul>\n<li>\u82e5\u9700\u8981\u8de8\u6d32\u90e8\u7f72\u6216\u5904\u7406\u5927\u91cf\u79bb\u7ebf\u4efb\u52a1\uff0c\u53ef\u8003\u8651\u7f8e\u56fdVPS \u6216\u6df7\u5408\u90e8\u7f72\u7b56\u7565\uff1a\u7f8e\u56fdVPS \u4f5c\u4e3a\u6570\u636e\u4e2d\u5fc3\u8282\u70b9\uff0c\u9999\u6e2fVPS \u4f5c\u4e3a\u8fb9\u7f18\u8282\u70b9\u3002<\/li>\n<li>\u5bf9\u8ba1\u7b97\u5bc6\u96c6\u578b\u5e94\u7528\u4f18\u5148\u5173\u6ce8\u6838\u6570\u4e0e\u5185\u5b58\u5e26\u5bbd\uff0c\u5e76\u7ed3\u5408 cgroups \u4e0e quota \u505a\u957f\u671f\u8c03\u5ea6\u3002<\/li>\n<\/ul>\n<h3>\u8d2d\u4e70\u65f6\u7684\u5177\u4f53\u53c2\u6570\u5efa\u8bae<\/h3>\n<ul>\n<li>\u5173\u6ce8\u5355\u6838\u6027\u80fd\uff08CPU \u578b\u53f7\u3001\u4e3b\u9891\uff09\u800c\u975e\u4ec5\u770b vCPU \u6570\u91cf\uff0c\u5f88\u591a Web \u4e0e\u6570\u636e\u5e93\u5e94\u7528\u4f9d\u8d56\u5355\u6838\u54cd\u5e94\u3002<\/li>\n<li>\u9009\u62e9\u53ef\u81ea\u5b9a\u4e49 CPU \u4eb2\u548c\u3001\u652f\u6301 I\/O \u4f18\u5148\u63a7\u5236\u4e0e\u7075\u6d3b\u5feb\u7167\u5907\u4efd\u529f\u80fd\u7684\u65b9\u6848\uff0c\u4fbf\u4e8e\u5728\u9999\u6e2f\u670d\u52a1\u5668 \u6216 \u7f8e\u56fdVPS \u4e0a\u505a\u8fd0\u7ef4\u4f18\u5316\u3002<\/li>\n<\/ul>\n<h2>\u5b9e\u8df5\u793a\u4f8b\uff1a\u5feb\u901f\u63d0\u5347\u4e00\u4e2a Node.js \u670d\u52a1\u54cd\u5e94<\/h2>\n<p>\u5047\u8bbe\u5728\u4e00\u53f0 4 \u6838\u9999\u6e2fVPS \u4e0a\u8fd0\u884c Node.js \u670d\u52a1\u4e0e\u6279\u5904\u7406\u4efb\u52a1\uff1a<\/p>\n<ul>\n<li>\u67e5\u770b\u8fd0\u884c\u8fdb\u7a0b\uff1aps aux &#8211;sort=-%cpu | head<\/li>\n<li>\u5c06 Node \u4e3b\u8fdb\u7a0b\u8bbe\u4e3a\u8f83\u9ad8\u4f18\u5148\u7ea7\uff08\u9700\u8981 root\uff09\uff1arenice -n -5 -p <strong>PID<\/strong><\/li>\n<li>\u5c06\u540e\u53f0\u6279\u5904\u7406\u653e\u5165 screen\uff0c\u5e76\u8bbe\u7f6e nice +15\uff1anice -n 15 .\/batch_job.sh<\/li>\n<li>\u4f7f\u7528 taskset \u5c06 Node \u7ed1\u5b9a\u5230 0-1 \u53f7\u6838\uff1ataskset -cp 0,1 <strong>PID<\/strong>\uff0c\u5c06\u6279\u5904\u7406\u7ed1\u5b9a\u5230 2-3 \u53f7\u6838\u3002<\/li>\n<\/ul>\n<p>\u7ecf\u8fc7\u4e0a\u8ff0\u8c03\u6574\u540e\uff0c\u77ed\u65f6\u95f4\u5185\u8bf7\u6c42\u54cd\u5e94 P95\/P99 \u4f1a\u660e\u663e\u4e0b\u964d\uff0c\u4f46\u957f\u671f\u5e94\u7ed3\u5408 cgroups \u8bbe\u7f6e CPU shares \u6216 quota \u6765\u7a33\u5b9a QoS\u3002<\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p>nice \u662f Linux \u63d0\u4f9b\u7684\u4e00\u4e2a\u8f7b\u91cf\u3001\u5373\u65f6\u7684\u8c03\u5ea6\u4f18\u5148\u7ea7\u5de5\u5177\uff0c\u9002\u5408\u5728\u9999\u6e2fVPS\u3001\u7f8e\u56fdVPS \u6216\u5176\u4ed6\u865a\u62df\u5316\u73af\u5883\u4e2d\u505a\u5e94\u6025\u4e0e\u77ed\u671f\u6027\u80fd\u4f18\u5316\u3002\u5bf9\u4e8e\u7ad9\u957f\u4e0e\u4f01\u4e1a\u7528\u6237\uff0c\u5408\u7406\u4f7f\u7528 nice\u3001\u7ed3\u5408 CPU \u4eb2\u548c\u6027\u4e0e cgroups\uff0c\u53ef\u5728\u4e0d\u91cd\u542f\u670d\u52a1\u7684\u60c5\u51b5\u4e0b\u663e\u8457\u6539\u5584\u5173\u952e\u4efb\u52a1\u7684 CPU \u5229\u7528\u7387\u4e0e\u54cd\u5e94\u8868\u73b0\u3002\u957f\u671f\u751f\u4ea7\u73af\u5883\u4ecd\u5efa\u8bae\u914d\u5408\u76d1\u63a7\u3001\u914d\u989d\u7ba1\u7406\u4e0e\u5408\u9002\u7684\u786c\u4ef6\/\u4e91\u65b9\u6848\u9009\u62e9\uff0c\u4ee5\u786e\u4fdd\u6301\u7eed\u7a33\u5b9a\u7684\u670d\u52a1\u8d28\u91cf\u3002<\/p>\n<p>\u5982\u679c\u4f60\u6b63\u5728\u8bc4\u4f30\u5408\u9002\u7684\u4e3b\u673a\u65b9\u6848\u4ee5\u914d\u5408\u4e0a\u8ff0\u4f18\u5316\u7b56\u7565\uff0c\u53ef\u4ee5\u53c2\u8003 Server.HK \u63d0\u4f9b\u7684\u9999\u6e2fVPS \u4ea7\u54c1\uff0c\u4e86\u89e3\u66f4\u591a\u914d\u7f6e\u4e0e\u5e26\u5bbd\u9009\u9879\uff1a<a href=\"https:\/\/www.server.hk\/cloud.php\" target=\"_blank\">https:\/\/www.server.hk\/cloud.php<\/a>\u3002\u5982\u9700\u4e86\u89e3\u66f4\u591a\u533a\u57df\u5316\u90e8\u7f72\u9009\u62e9\uff0cServer.HK 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