\u7cfb\u7edf\u7ea7\u4f18\u5316\u6280\u672f<\/strong><\/h2>\n

\u5b9e\u65bd\u8fd9\u4e9b\u5185\u6838\u7ea7\u4f18\u5316\u4ee5\u63d0\u5347CPU\u6027\u80fd\uff1a<\/p>\n

\n
• \u8c03\u6574\/etc\/sysctl.conf\u4e2d\u7684\u5185\u6838\u53c2\u6570\uff1a\n
  \n
  • net.core.somaxconn = 65535<\/li>\n
  • net.ipv4.tcp_max_tw_buckets = 1440000<\/li>\n
  • net.ipv4.tcp_fin_timeout = 15<\/li>\n<\/ul>\n<\/li>\n
  • \u4f18\u5316\u8fdb\u7a0b\u8c03\u5ea6\uff1a\n
    \n
    • \u5c06CPU\u8c03\u8282\u5668\u914d\u7f6e\u4e3a\u6027\u80fd\u6a21\u5f0f<\/li>\n
    • \u8c03\u6574\u5173\u952e\u8fdb\u7a0b\u7684nice\u503c<\/li>\n
    • \u4e3a\u7279\u5b9a\u5e94\u7528\u7a0b\u5e8f\u5b9e\u73b0CPU\u4eb2\u548c\u6027<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

      \u5e94\u7528\u7a0b\u5e8f\u7ea7\u6027\u80fd\u8c03\u4f18<\/strong><\/h2>\n

      \u4e13\u6ce8\u4e8e\u8fd9\u4e9b\u7279\u5b9a\u5e94\u7528\u7a0b\u5e8f\u4f18\u5316\uff1a<\/p>\n

      \n
      • Nginx\u914d\u7f6e\uff1a\n
        \n
        • worker_processes auto;<\/li>\n
        • worker_connections 8192;<\/li>\n
        • use epoll;<\/li>\n
        • multi_accept on;<\/li>\n<\/ul>\n<\/li>\n
        • PHP-FPM\u4f18\u5316\uff1a\n
          \n
          • pm = dynamic<\/li>\n
          • pm.max_children = 50<\/li>\n
          • pm.start_servers = 5<\/li>\n
          • pm.min_spare_servers = 5<\/li>\n
          • pm.max_spare_servers = 35<\/li>\n<\/ul>\n<\/li>\n
          • MySQL\u6027\u80fd\uff1a\n
            \n
            • innodb_buffer_pool_size\u4f18\u5316<\/li>\n
            • \u67e5\u8be2\u7f13\u5b58\u914d\u7f6e<\/li>\n
            • \u9002\u5f53\u7684\u7d22\u5f15\u7b56\u7565<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

              CPU\u4fdd\u62a4\u7684\u9ad8\u7ea7\u5b89\u5168\u63aa\u65bd<\/strong><\/h2>\n

              \u5b9e\u65bd\u5f3a\u5927\u7684\u5b89\u5168\u63aa\u65bd\u5bf9\u4e8e\u9632\u6b62CPU\u5bc6\u96c6\u578b\u653b\u51fb\u81f3\u5173\u91cd\u8981\uff1a<\/p>\n

              \n
              • DDoS\u7f13\u89e3\uff1a\n
                \n
                • \u914d\u7f6e\u5e26\u901f\u7387\u9650\u5236\u7684iptables<\/li>\n
                • \u4f7f\u7528\u81ea\u5b9a\u4e49\u89c4\u5219\u5b9e\u65bdfail2ban<\/li>\n
                • \u90e8\u7f72TCP SYN cookies\u4fdd\u62a4<\/li>\n<\/ul>\n<\/li>\n
                • \u8fdb\u7a0b\u63a7\u5236\uff1a\n
                  \n
                  • \u8bbe\u7f6eCGroup\u9650\u5236<\/li>\n
                  • \u914d\u7f6e\u8fdb\u7a0b\u8d44\u6e90\u9650\u5236<\/li>\n
                  • \u5b9e\u65bdCPU\u4f7f\u7528\u914d\u989d<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                    \u76d1\u63a7\u548c\u8b66\u62a5\u7cfb\u7edf\u5b9e\u65bd<\/strong><\/h2>\n

                    \u5efa\u7acb\u5168\u9762\u7684\u76d1\u63a7\u7b56\u7565\uff1a<\/p>\n

                    \n
                    • \u914d\u7f6ePrometheus\u8fdb\u884c\u6307\u6807\u6536\u96c6<\/li>\n
                    • \u8bbe\u7f6eGrafana\u4eea\u8868\u677f\u8fdb\u884c\u53ef\u89c6\u5316<\/li>\n
                    • \u5b9e\u65bd\u8b66\u62a5\u9608\u503c\uff1a\n
                      \n
                      • \u8b66\u544a\u7ea7\u522b\uff1a70% CPU\u4f7f\u7528\u7387<\/li>\n
                      • \u4e34\u754c\u7ea7\u522b\uff1a85% CPU\u4f7f\u7528\u7387<\/li>\n
                      • \u7d27\u6025\u7ea7\u522b\uff1a95% CPU\u4f7f\u7528\u7387<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                        \u6027\u80fd\u57fa\u51c6\u6d4b\u8bd5\u5de5\u5177<\/strong><\/h2>\n

                        \u4f7f\u7528\u8fd9\u4e9b\u5de5\u5177\u8fdb\u884c\u6301\u7eed\u6027\u80fd\u8bc4\u4f30\uff1a<\/p>\n

                        \n
                        • stress-ng\u7528\u4e8eCPU\u538b\u529b\u6d4b\u8bd5<\/li>\n
                        • sysbench\u7528\u4e8e\u7cfb\u7edf\u6027\u80fd\u57fa\u51c6\u6d4b\u8bd5<\/li>\n
                        • ab\uff08Apache\u57fa\u51c6\u6d4b\u8bd5\uff09\u7528\u4e8eWeb\u670d\u52a1\u5668\u6d4b\u8bd5<\/li>\n
                        • mysqlslap\u7528\u4e8e\u6570\u636e\u5e93\u8d1f\u8f7d\u6d4b\u8bd5<\/li>\n<\/ul>\n

                          \u7d27\u6025\u54cd\u5e94\u534f\u8bae<\/strong><\/h2>\n

                          \u9047\u5230\u4e25\u91cdCPU\u8d1f\u8f7d\u60c5\u51b5\u65f6\uff0c\u9075\u5faa\u4ee5\u4e0b\u534f\u8bae\uff1a<\/p>\n

                          \n
                          • \u5373\u65f6\u884c\u52a8\uff1a\n
                            \n
                            • \u7ec8\u6b62\u5931\u63a7\u8fdb\u7a0b\uff1akill -9 $(ps aux | grep -i [process] | awk ‘{print $2}’)<\/li>\n
                            • \u4e34\u65f6\u963b\u6b62\u53ef\u7591IP<\/li>\n
                            • \u542f\u7528\u7d27\u6025\u8d44\u6e90\u9650\u5236<\/li>\n<\/ul>\n<\/li>\n
                            • \u5206\u6790\u6b65\u9aa4\uff1a\n
                              \n
                              • \u6536\u96c6\u7cfb\u7edf\u65e5\u5fd7\u548c\u6307\u6807<\/li>\n
                              • \u5206\u6790\u8fdb\u7a0b\u6811<\/li>\n
                              • \u5ba1\u67e5\u6700\u8fd1\u7684\u7cfb\u7edf\u53d8\u66f4<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                                \u957f\u671f\u7ef4\u62a4\u6700\u4f73\u5b9e\u8df5<\/strong><\/h2>\n

                                \u5b9e\u65bd\u8fd9\u4e9b\u7b56\u7565\u4ee5\u4fdd\u6301\u6301\u7eed\u7684\u6700\u4f73\u6027\u80fd\uff1a<\/p>\n

                                \n
                                • \u5b9a\u671f\u7cfb\u7edf\u7ef4\u62a4\uff1a\n
                                  \n
                                  • \u6bcf\u5468\u65e5\u5fd7\u8f6e\u6362\u548c\u5206\u6790<\/li>\n
                                  • \u6bcf\u6708\u6027\u80fd\u5ba1\u8ba1<\/li>\n
                                  • \u6bcf\u5b63\u5ea6\u5b89\u5168\u8bc4\u4f30<\/li>\n<\/ul>\n<\/li>\n
                                  • \u8d44\u6e90\u6269\u5c55\u6307\u5357\uff1a\n
                                    \n
                                    • \u76d1\u63a7\u589e\u957f\u8d8b\u52bf<\/li>\n
                                    • \u89c4\u5212\u5bb9\u91cf\u5347\u7ea7<\/li>\n
                                    • \u5b9e\u65bd\u8d1f\u8f7d\u5747\u8861<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                                      \u5e38\u89c1\u573a\u666f\u6545\u969c\u6392\u9664<\/strong><\/h2>\n

                                      \u5904\u7406\u8fd9\u4e9b\u9891\u7e41\u51fa\u73b0\u7684CPU\u5bc6\u96c6\u578b\u60c5\u51b5\uff1a<\/p>\n

                                      \n
                                      • \u9ad8\u8d1f\u8f7d\u4f46CPU\u4f7f\u7528\u7387\u4e0d\u9ad8\uff1a\n
                                        \n
                                        • \u68c0\u67e5I\/O\u7b49\u5f85\u8fdb\u7a0b<\/li>\n
                                        • \u5206\u6790\u78c1\u76d8\u6027\u80fd<\/li>\n
                                        • \u76d1\u63a7\u7f51\u7edc\u74f6\u9888<\/li>\n<\/ul>\n<\/li>\n
                                        • CPU\u7a81\u7136\u5cf0\u503c\uff1a\n
                                          \n
                                          • \u68c0\u67e5cron\u4efb\u52a1<\/li>\n
                                          • \u68c0\u67e5\u5907\u4efd\u8fdb\u7a0b<\/li>\n
                                          • \u76d1\u63a7\u5e94\u7528\u7a0b\u5e8f\u90e8\u7f72<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                                            \u670d\u52a1\u5668\u57fa\u7840\u8bbe\u65bd\u7684\u672a\u6765\u89c4\u5212<\/strong><\/h2>\n

                                            \u8003\u8651\u8fd9\u4e9b\u9ad8\u7ea7\u4f18\u5316\u7b56\u7565\uff1a<\/p>\n

                                            \n
                                            • \u5bb9\u5668\u7f16\u6392\uff1a\n
                                              \n
                                              • \u8d44\u6e90\u5206\u914d\u9650\u5236<\/li>\n
                                              • \u81ea\u52a8\u6269\u5c55\u7b56\u7565<\/li>\n
                                              • \u8d1f\u8f7d\u5206\u914d\u89c4\u5219<\/li>\n<\/ul>\n<\/li>\n
                                              • \u9884\u6d4b\u5206\u6790\uff1a\n
                                                \n
                                                • \u57fa\u4e8e\u673a\u5668\u5b66\u4e60\u7684\u76d1\u63a7<\/li>\n
                                                • \u81ea\u52a8\u54cd\u5e94\u7cfb\u7edf<\/li>\n
                                                • \u6027\u80fd\u9884\u6d4b\u6a21\u578b<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                                                  \u7ed3\u8bba<\/strong><\/h2>\n

                                                  \u4f18\u5316\u65e5\u672c\u72ec\u7acb\u670d\u52a1\u5668\u7684CPU\u8d1f\u8f7d\u9700\u8981\u5c06\u7cfb\u7edf\u4f18\u5316\u3001\u5b89\u5168\u63aa\u65bd\u548c\u6027\u80fd\u76d1\u63a7\u76f8\u7ed3\u5408\u7684\u7efc\u5408\u65b9\u6cd5\u3002\u901a\u8fc7\u5b9e\u65bd\u8fd9\u4e9b\u5148\u8fdb\u6280\u672f\u5e76\u4fdd\u6301\u8b66\u60d5\u76d1\u7763\uff0c\u6280\u672f\u4e13\u4e1a\u4eba\u5458\u53ef\u4ee5\u786e\u4fdd\u65e5\u672c\u670d\u52a1\u5668\u73af\u5883\u4e2d\u7684\u6700\u4f73\u670d\u52a1\u5668\u6027\u80fd\u3002\u5b9a\u671f\u8bc4\u4f30\u548c\u66f4\u65b0\u4f18\u5316\u7b56\u7565\u5c06\u6709\u52a9\u4e8e\u7ef4\u6301\u5cf0\u503c\u6027\u80fd\u5e76\u9632\u6b62CPU\u76f8\u5173\u95ee\u9898\u3002<\/p>\n

                                                  \u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u65e5\u672c\u670d\u52a1\u5668\u4f18\u5316\u548c\u670d\u52a1\u5668\u79df\u7528\u89e3\u51b3\u65b9\u6848\u7684\u4fe1\u606f\uff0c\u8bf7\u6d4f\u89c8\u6211\u4eec\u7684\u5176\u4ed6\u6280\u672f\u6307\u5357\u548c\u8d44\u6e90\u3002\u4e86\u89e3CPU\u8d1f\u8f7d\u7ba1\u7406\u5bf9\u4e8e\u5728\u65e5\u672c\u52a8\u6001\u6280\u672f\u73af\u5883\u4e2d\u7ef4\u62a4\u9ad8\u6027\u80fd\u72ec\u7acb\u670d\u52a1\u5668\u81f3\u5173\u91cd\u8981\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

                                                  \u7ba1\u7406\u65e5\u672c\u72ec\u7acb\u670d\u52a1\u5668\u7684CPU\u8d1f\u8f7d\u9700\u8981\u5c06\u7cfb\u7edf\u7ea7\u4f18\u5316\u3001\u5b89\u5168\u63aa\u65bd\u548c\u6027\u80fd\u8c03\u4f18\u76f8\u7ed3\u5408\u7684\u590d\u6742\u65b9\u6cd5\u3002\u672c\u7efc\u5408\u6307\u5357\u4e3a\u5728\u65e5\u672c\u670d\u52a1\u5668\u73af\u5883\u4e2d\u5904\u7406\u9ad8CPU\u4f7f\u7528\u7387\u7684\u6280\u672f\u4e13\u4e1a\u4eba\u5458\u63a2\u8ba8\u5148\u8fdb\u6280\u672f\u3002 \u7406\u89e3CPU\u8d1f\u8f7d\u57fa\u7840 \u5728\u6df1\u5165\u4f18\u5316\u6280\u672f\u4e4b\u524d\uff0c\u4e86\u89e3CPU\u8d1f\u8f7d\u6307\u6807\u7684\u6280\u672f\u65b9\u9762\u81f3\u5173\u91cd\u8981\u3002\u5728Linux\u73af\u5883\u4e2d\uff0c\u8d1f\u8f7d\u5e73\u5747\u503c\u4ee3\u8868\u7b49\u5f85\u5728\u8fd0\u884c\u961f\u5217\u4e2d\u7684\u8fdb\u7a0b\u6570\u91cf\u52a0\u4e0a\u5f53\u524d\u6b63\u5728\u6267\u884c\u7684\u8fdb\u7a0b\u6570\u91cf\u3002 \u8d1f\u8f7d\u5e73\u5747\u503c\u4f4e\u4e8e1.0\uff1a\u7cfb\u7edf\u5229\u7528\u7387\u4e0d\u8db3 \u8d1f\u8f7d\u5e73\u5747\u503c\u7b49\u4e8eCPU\u6838\u5fc3\u6570\uff1a\u6700\u4f73\u5229\u7528\u7387 \u8d1f\u8f7d\u5e73\u5747\u503c\u8d85\u8fc7CPU\u6838\u5fc3\u6570\uff1a\u53ef\u80fd\u51fa\u73b0\u6027\u80fd\u4e0b\u964d CPU\u5206\u6790\u5173\u952e\u76d1\u63a7\u547d\u4ee4 \u8bca\u65adCPU\u95ee\u9898\u7684\u57fa\u672cLinux\u547d\u4ee4\uff1a top -c\uff1a\u5e26\u547d\u4ee4\u8be6\u60c5\u7684\u5b9e\u65f6\u8fdb\u7a0b\u76d1\u63a7 htop\uff1a\u5e26\u8272\u5f69\u7f16\u7801\u7684\u4ea4\u4e92\u5f0f\u8fdb\u7a0b\u67e5\u770b\u5668 vmstat 1\uff1a\u6bcf\u79d2\u865a\u62df\u5185\u5b58\u7edf\u8ba1 sar -u 1 5\uff1a\u6bcf\u79d2CPU\u4f7f\u7528\u7387\u62a5\u544a\uff0c\u6301\u7eed5\u4e2a\u95f4\u9694 pidstat -u 1\uff1a\u6bcf\u4e2a\u8fdb\u7a0b\u7684CPU\u7edf\u8ba1 \u65e5\u672c\u670d\u52a1\u5668\u9ad8CPU\u8d1f\u8f7d\u7684\u5e38\u89c1\u539f\u56e0 \u7531\u4e8e\u7279\u5b9a\u7684\u533a\u57df\u6d41\u91cf\u6a21\u5f0f\u548c\u7f51\u7edc\u5b89\u5168\u5a01\u80c1\uff0c\u65e5\u672c\u72ec\u7acb\u670d\u52a1\u5668\u7ecf\u5e38\u9762\u4e34\u72ec\u7279\u7684\u6311\u6218\u3002\u4ee5\u4e0b\u662f\u5bfc\u81f4CPU\u8fc7\u5ea6\u4f7f\u7528\u7684\u4e3b\u8981\u56e0\u7d20\uff1a \u9488\u5bf9\u65e5\u672c\u7f51\u7edc\u7684DDoS\u653b\u51fb \u5904\u7406\u4e9a\u6d32\u5b57\u7b26\u96c6\u7684\u672a\u4f18\u5316\u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801 \u52a0\u5bc6\u8d27\u5e01\u6316\u77ff\u6076\u610f\u8f6f\u4ef6 \u5904\u7406\u65e5\u8bed\/Unicode\u6570\u636e\u7684\u4f4e\u6548\u6570\u636e\u5e93\u67e5\u8be2 \u670d\u52a1\u4e8e\u4e9a\u6d32\u5e02\u573a\u7684\u8d44\u6e90\u5bc6\u96c6\u578b\u7f51\u7edc\u5e94\u7528 \u7cfb\u7edf\u7ea7\u4f18\u5316\u6280\u672f \u5b9e\u65bd\u8fd9\u4e9b\u5185\u6838\u7ea7\u4f18\u5316\u4ee5\u63d0\u5347CPU\u6027\u80fd\uff1a \u8c03\u6574\/etc\/sysctl.conf\u4e2d\u7684\u5185\u6838\u53c2\u6570\uff1a net.core.somaxconn = 65535 net.ipv4.tcp_max_tw_buckets = 1440000 net.ipv4.tcp_fin_timeout = 15 \u4f18\u5316\u8fdb\u7a0b\u8c03\u5ea6\uff1a \u5c06CPU\u8c03\u8282\u5668\u914d\u7f6e\u4e3a\u6027\u80fd\u6a21\u5f0f \u8c03\u6574\u5173\u952e\u8fdb\u7a0b\u7684nice\u503c \u4e3a\u7279\u5b9a\u5e94\u7528\u7a0b\u5e8f\u5b9e\u73b0CPU\u4eb2\u548c\u6027 \u5e94\u7528\u7a0b\u5e8f\u7ea7\u6027\u80fd\u8c03\u4f18 \u4e13\u6ce8\u4e8e\u8fd9\u4e9b\u7279\u5b9a\u5e94\u7528\u7a0b\u5e8f\u4f18\u5316\uff1a Nginx\u914d\u7f6e\uff1a worker_processes auto; worker_connections 8192; use epoll; multi_accept on; PHP-FPM\u4f18\u5316\uff1a […]<\/p>\n

                                                  Read More…<\/a><\/p>\n","protected":false},"author":2,"featured_media":26908,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8117],"tags":[8747,8748,8750,8749,8386],"class_list":["post-26913","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-japan-dedicated-server-sc","tag-japan-server-optimization-sc-2","tag-cpu-load-management-sc-2","tag-dedicated-hosting-japan-sc-2","tag-server-performance-tuning-sc-2","tag-linux-server-optimization-sc"],"acf":[],"yoast_head":"\n