{"id":62083,"date":"2025-04-29T11:00:57","date_gmt":"2025-04-29T03:00:57","guid":{"rendered":"https:\/\/fwq.ai\/blog\/62083\/"},"modified":"2025-04-29T11:00:57","modified_gmt":"2025-04-29T03:00:57","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8linux%e8%bf%9b%e8%a1%8c%e8%bf%9b%e7%a8%8b%e8%b0%83%e5%ba%a6%e4%bc%98%e5%8c%96-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/62083\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528Linux\u8fdb\u884c\u8fdb\u7a0b\u8c03\u5ea6\u4f18\u5316"},"content":{"rendered":"

\u5982\u4f55\u4f7f\u7528linux\u8fdb\u884c\u8fdb\u7a0b\u8c03\u5ea6\u4f18\u5316<\/p>\n

\u968f\u7740\u8ba1\u7b97\u673a\u6280\u672f\u7684\u53d1\u5c55\u548c\u4e92\u8054\u7f51\u7684\u666e\u53ca\uff0c\u5bf9\u8ba1\u7b97\u673a\u7cfb\u7edf\u7684\u6027\u80fd\u8981\u6c42\u8d8a\u6765\u8d8a\u9ad8\u3002\u8fdb\u7a0b\u8c03\u5ea6\u4f5c\u4e3a\u64cd\u4f5c\u7cfb\u7edf\u7684\u91cd\u8981\u529f\u80fd\u4e4b\u4e00\uff0c\u5728\u63d0\u9ad8\u7cfb\u7edf\u6027\u80fd\u65b9\u9762\u8d77\u7740\u91cd\u8981\u4f5c\u7528\u3002Linux\u4f5c\u4e3a\u4e00\u4e2a\u5f00\u6e90\u7684\u64cd\u4f5c\u7cfb\u7edf\uff0c\u5177\u6709\u826f\u597d\u7684\u53ef\u5b9a\u5236\u6027\u548c\u6269\u5c55\u6027\uff0c\u4f7f\u5f97\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4f18\u5316\u8fdb\u7a0b\u8c03\u5ea6\u6765\u63d0\u9ad8\u8ba1\u7b97\u673a\u7cfb\u7edf\u7684\u6027\u80fd\u3002<\/p>\n

\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528linux\u8fdb\u884c\u8fdb\u7a0b\u8c03\u5ea6\u4f18\u5316\uff0c\u5e76\u7ed9\u51fa\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u4e00\u3001\u4e86\u89e3Linux\u7684\u8fdb\u7a0b\u8c03\u5ea6\u5668<\/p>\n

Linux\u7684\u8fdb\u7a0b\u8c03\u5ea6\u5668\u8d1f\u8d23\u51b3\u5b9a\u5e94\u8be5\u8fd0\u884c\u54ea\u4e2a\u8fdb\u7a0b\uff0c\u5e76\u51b3\u5b9a\u8fdb\u7a0b\u5728CPU\u4e0a\u8fd0\u884c\u7684\u65f6\u95f4\u3002Linux\u4f7f\u7528\u5b8c\u5168\u516c\u5e73\u8c03\u5ea6\uff08Completely Fair Scheduler\uff0cCFS\uff09\u4f5c\u4e3a\u9ed8\u8ba4\u7684\u8fdb\u7a0b\u8c03\u5ea6\u7b97\u6cd5\u3002CFS\u901a\u8fc7\u8ba1\u7b97\u6bcf\u4e2a\u8fdb\u7a0b\u7684\u865a\u62df\u8fd0\u884c\u65f6\u95f4\uff0c\u6765\u5b9e\u73b0\u5bf9\u8fdb\u7a0b\u7684\u8c03\u5ea6\u3002CFS\u4f1a\u6839\u636e\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u6765\u5206\u914d\u8fd0\u884c\u65f6\u95f4\u7247\uff0c\u4f18\u5148\u7ea7\u8d8a\u9ad8\u7684\u8fdb\u7a0b\u5c06\u83b7\u5f97\u66f4\u591a\u7684\u8fd0\u884c\u65f6\u95f4\u3002<\/p>\n

\u4e8c\u3001\u4f7f\u7528nice\u548crenice\u8c03\u6574\u8fdb\u7a0b\u4f18\u5148\u7ea7<\/p>\n

Linux\u63d0\u4f9b\u4e86nice\u548crenice\u547d\u4ee4\u6765\u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u3002nice\u547d\u4ee4\u7528\u6765\u542f\u52a8\u65b0\u8fdb\u7a0b\uff0c\u5e76\u4e14\u53ef\u4ee5\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u3002\u4f18\u5148\u7ea7\u8303\u56f4\u4e3a-20\u523019\uff0c\u5176\u4e2d-20\u4e3a\u6700\u9ad8\u4f18\u5148\u7ea7\uff0c19\u4e3a\u6700\u4f4e\u4f18\u5148\u7ea7\u3002<\/p>\n

\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

nice -n 10 .\/myprogram<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4ee5\u4e0a\u4ee3\u7801\u5c06\u4ee5\u4f18\u5148\u7ea7\u4e3a10\u542f\u52a8myprogram\u8fdb\u7a0b\u3002<\/p>\n
renice\u547d\u4ee4\u7528\u6765\u8c03\u6574\u5df2\u7ecf\u8fd0\u884c\u7684\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u3002renice\u547d\u4ee4\u9700\u8981\u6307\u5b9a\u8fdb\u7a0b\u7684PID\u548c\u65b0\u7684\u4f18\u5148\u7ea7\u3002<\/p>\n
\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
renice 10 12345<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4ee5\u4e0a\u4ee3\u7801\u5c06\u5c06PID\u4e3a12345\u7684\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u8c03\u6574\u4e3a10\u3002<\/p>\n
\u4e09\u3001\u4f7f\u7528sched_setscheduler\u8bbe\u7f6e\u8fdb\u7a0b\u8c03\u5ea6\u7b56\u7565<\/p>\n
Linux\u63d0\u4f9b\u4e86sched_setscheduler\u51fd\u6570\u6765\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u8c03\u5ea6\u7b56\u7565\u3002\u53ef\u4ee5\u901a\u8fc7\u8c03\u7528\u6b64\u51fd\u6570\u6765\u5207\u6362\u8fdb\u7a0b\u7684\u8c03\u5ea6\u7b56\u7565\u4e3a\u5b9e\u65f6\u8c03\u5ea6\u6216\u8005\u666e\u901a\u8c03\u5ea6\u3002<\/p>\n
\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
#include <sched.h>\n\nint sched_setscheduler(pid_t pid, int policy, const struct sched_param *param);<\/sched.h><\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5176\u4e2dpid\u4e3a\u8fdb\u7a0b\u7684PID\uff0cpolicy\u4e3a\u8c03\u5ea6\u7b56\u7565\uff0cparam\u4e3a\u8c03\u5ea6\u53c2\u6570\u3002<\/p>\n
\u5e38\u89c1\u7684\u8c03\u5ea6\u7b56\u7565\u6709\u4e09\u79cd\uff1a<\/p>\n
    \n
  • SCHED_FIFO\uff1a\u5b9e\u65f6\u5148\u8fdb\u5148\u51fa\u7b56\u7565\u3002<\/li>\n
  • SCHED_RR\uff1a\u5b9e\u65f6\u8f6e\u8f6c\u7b56\u7565\u3002<\/li>\n
  • SCHED_OTHER\uff1a\u666e\u901a\u8c03\u5ea6\u7b56\u7565\u3002<\/li>\n<\/ul>\n
    \u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
    #include <sched.h>\n\nint main() {\n    struct sched_param scheduling_param;\n    scheduling_param.sched_priority = 1; \/\/\u4f18\u5148\u7ea7\u4e3a1\n    sched_setscheduler(getpid(), SCHED_FIFO, &amp;scheduling_param);\n    \n    \/\/...\u5176\u4ed6\u4ee3\u7801\n    return 0;\n}<\/sched.h><\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u4ee5\u4e0a\u4ee3\u7801\u5c06\u5f53\u524d\u8fdb\u7a0b\u7684\u8c03\u5ea6\u7b56\u7565\u8bbe\u7f6e\u4e3a\u5b9e\u65f6\u5148\u8fdb\u5148\u51fa\u7b56\u7565\uff0c\u5e76\u5c06\u4f18\u5148\u7ea7\u8bbe\u7f6e\u4e3a1\u3002<\/p>\n
    \u56db\u3001\u4f7f\u7528cgroups\u9650\u5236\u8fdb\u7a0b\u8d44\u6e90<\/p>\n
    cgroups\u662fLinux\u5185\u6838\u63d0\u4f9b\u7684\u4e00\u79cd\u8d44\u6e90\u63a7\u5236\u673a\u5236\uff0c\u53ef\u4ee5\u7528\u4e8e\u9650\u5236\u8fdb\u7a0b\u7684\u8d44\u6e90\u4f7f\u7528\u3002cgroups\u53ef\u4ee5\u8bbe\u7f6e\u8fdb\u7a0b\u7684CPU\u914d\u989d\uff0c\u5185\u5b58\u4f7f\u7528\u9650\u5236\u7b49\uff0c\u4ece\u800c\u5bf9\u8fdb\u7a0b\u7684\u8d44\u6e90\u4f7f\u7528\u8fdb\u884c\u4f18\u5316\u3002<\/p>\n
    \u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
    # \u521b\u5efa\u4e00\u4e2a\u540d\u4e3amygroup\u7684cgroup\nsudo cgcreate -g cpu,cpuacct,memory:\/mygroup\n\n# \u5c06\u6307\u5b9a\u7684\u8fdb\u7a0bPID\u52a0\u5165\u5230mygroup\nsudo cgclassify -g cpu,cpuacct,memory:\/mygroup <pid>\n\n# \u8bbe\u7f6emygroup\u7684CPU\u914d\u989d\u4e3a50%\nsudo cgset -r cpu.cfs_quota_us=50000 \/mygroup\n\n# \u8bbe\u7f6emygroup\u7684\u5185\u5b58\u9650\u5236\u4e3a1GB\nsudo cgset -r memory.limit_in_bytes=1G \/mygroup<\/pid><\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u4ee5\u4e0a\u4ee3\u7801\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3amygroup\u7684cgroup\uff0c\u5e76\u5c06\u6307\u5b9a\u7684\u8fdb\u7a0bPID\u52a0\u5165\u5230mygroup\u3002\u7136\u540e\u8bbe\u7f6emygroup\u7684CPU\u914d\u989d\u4e3a50%\uff0c\u5185\u5b58\u9650\u5236\u4e3a1GB\u3002<\/p>\n
    \u7ed3\u8bed<\/p>\n
    \u672c\u6587\u4ecb\u7ecd\u4e86\u5982\u4f55\u4f7f\u7528linux\u8fdb\u884c\u8fdb\u7a0b\u8c03\u5ea6\u4f18\u5316\uff0c\u5e76\u7ed9\u51fa\u4e86\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002\u901a\u8fc7\u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u3001\u8bbe\u7f6e\u8fdb\u7a0b\u7684\u8c03\u5ea6\u7b56\u7565\u4ee5\u53ca\u9650\u5236\u8fdb\u7a0b\u7684\u8d44\u6e90\u4f7f\u7528\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u8ba1\u7b97\u673a\u7cfb\u7edf\u7684\u6027\u80fd\u3002\u5e0c\u671b\u672c\u6587\u53ef\u4ee5\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3Linux\u7684\u8fdb\u7a0b\u8c03\u5ea6\u673a\u5236\uff0c\u5e76\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u53d1\u6325\u4f5c\u7528\u3002<\/p>\n
    \u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528Linux\u8fdb\u884c\u8fdb\u7a0b\u8c03\u5ea6\u4f18\u5316\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8FDCServers\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
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