\u7cfb\u7d71\u5c64\u7d1a\u512a\u5316\u6280\u8853<\/strong><\/h2>\n

\u5be6\u65bd\u9019\u4e9b\u6838\u5fc3\u5c64\u7d1a\u512a\u5316\u4ee5\u63d0\u5347CPU\u6548\u80fd\uff1a<\/p>\n

\n
• \u8abf\u6574\/etc\/sysctl.conf\u4e2d\u7684\u6838\u5fc3\u53c3\u6578\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
  • \u512a\u5316\u7a0b\u5e8f\u6392\u7a0b\uff1a\n
    \n
    • \u5c07CPU\u8abf\u7bc0\u5668\u914d\u7f6e\u70ba\u6548\u80fd\u6a21\u5f0f<\/li>\n
    • \u8abf\u6574\u95dc\u9375\u7a0b\u5e8f\u7684nice\u503c<\/li>\n
    • \u70ba\u7279\u5b9a\u61c9\u7528\u7a0b\u5f0f\u5be6\u73feCPU\u89aa\u548c\u6027<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

      \u61c9\u7528\u7a0b\u5f0f\u5c64\u7d1a\u6548\u80fd\u8abf\u6821<\/strong><\/h2>\n

      \u5c08\u6ce8\u65bc\u9019\u4e9b\u7279\u5b9a\u61c9\u7528\u7a0b\u5f0f\u512a\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\u512a\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\u6548\u80fd\uff1a\n
            \n
            • innodb_buffer_pool_size\u512a\u5316<\/li>\n
            • \u67e5\u8a62\u5feb\u53d6\u914d\u7f6e<\/li>\n
            • \u9069\u7576\u7684\u7d22\u5f15\u7b56\u7565<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

              CPU\u4fdd\u8b77\u7684\u9032\u968e\u5b89\u5168\u63aa\u65bd<\/strong><\/h2>\n

              \u5be6\u65bd\u5f37\u5927\u7684\u5b89\u5168\u63aa\u65bd\u5c0d\u65bc\u9632\u6b62CPU\u5bc6\u96c6\u578b\u653b\u64ca\u81f3\u95dc\u91cd\u8981\uff1a<\/p>\n

              \n
              • DDoS\u7de9\u89e3\uff1a\n
                \n
                • \u914d\u7f6e\u5e36\u901f\u7387\u9650\u5236\u7684iptables<\/li>\n
                • \u4f7f\u7528\u81ea\u5b9a\u7fa9\u898f\u5247\u5be6\u65bdfail2ban<\/li>\n
                • \u90e8\u7f72TCP SYN cookies\u4fdd\u8b77<\/li>\n<\/ul>\n<\/li>\n
                • \u7a0b\u5e8f\u63a7\u5236\uff1a\n
                  \n
                  • \u8a2d\u7f6eCGroup\u9650\u5236<\/li>\n
                  • \u914d\u7f6e\u7a0b\u5e8f\u8cc7\u6e90\u9650\u5236<\/li>\n
                  • \u5be6\u65bdCPU\u4f7f\u7528\u914d\u984d<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                    \u76e3\u63a7\u548c\u8b66\u5831\u7cfb\u7d71\u5be6\u65bd<\/strong><\/h2>\n

                    \u5efa\u7acb\u5168\u9762\u7684\u76e3\u63a7\u7b56\u7565\uff1a<\/p>\n

                    \n
                    • \u914d\u7f6ePrometheus\u9032\u884c\u6307\u6a19\u6536\u96c6<\/li>\n
                    • \u8a2d\u7f6eGrafana\u5100\u8868\u677f\u9032\u884c\u8996\u89ba\u5316<\/li>\n
                    • \u5be6\u65bd\u8b66\u5831\u95be\u503c\uff1a\n
                      \n
                      • \u8b66\u544a\u7d1a\u5225\uff1a70% CPU\u4f7f\u7528\u7387<\/li>\n
                      • \u81e8\u754c\u7d1a\u5225\uff1a85% CPU\u4f7f\u7528\u7387<\/li>\n
                      • \u7dca\u6025\u7d1a\u5225\uff1a95% CPU\u4f7f\u7528\u7387<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                        \u6548\u80fd\u57fa\u6e96\u6e2c\u8a66\u5de5\u5177<\/strong><\/h2>\n

                        \u4f7f\u7528\u9019\u4e9b\u5de5\u5177\u9032\u884c\u6301\u7e8c\u6548\u80fd\u8a55\u4f30\uff1a<\/p>\n

                        \n
                        • stress-ng\u7528\u65bcCPU\u58d3\u529b\u6e2c\u8a66<\/li>\n
                        • sysbench\u7528\u65bc\u7cfb\u7d71\u6548\u80fd\u57fa\u6e96\u6e2c\u8a66<\/li>\n
                        • ab\uff08Apache\u57fa\u6e96\u6e2c\u8a66\uff09\u7528\u65bcWeb\u4f3a\u670d\u5668\u6e2c\u8a66<\/li>\n
                        • mysqlslap\u7528\u65bc\u8cc7\u6599\u5eab\u8ca0\u8f09\u6e2c\u8a66<\/li>\n<\/ul>\n

                          \u7dca\u6025\u61c9\u8b8a\u5354\u5b9a<\/strong><\/h2>\n

                          \u9047\u5230\u56b4\u91cdCPU\u8ca0\u8f09\u60c5\u6cc1\u6642\uff0c\u9075\u5faa\u4ee5\u4e0b\u5354\u5b9a\uff1a<\/p>\n

                          \n
                          • \u5373\u6642\u884c\u52d5\uff1a\n
                            \n
                            • \u7d42\u6b62\u5931\u63a7\u7a0b\u5e8f\uff1akill -9 $(ps aux | grep -i [process] | awk ‘{print $2}’)<\/li>\n
                            • \u66ab\u6642\u963b\u6b62\u53ef\u7591IP<\/li>\n
                            • \u555f\u7528\u7dca\u6025\u8cc7\u6e90\u9650\u5236<\/li>\n<\/ul>\n<\/li>\n
                            • \u5206\u6790\u6b65\u9a5f\uff1a\n
                              \n
                              • \u6536\u96c6\u7cfb\u7d71\u65e5\u8a8c\u548c\u6307\u6a19<\/li>\n
                              • \u5206\u6790\u7a0b\u5e8f\u6a39<\/li>\n
                              • \u5be9\u67e5\u6700\u8fd1\u7684\u7cfb\u7d71\u8b8a\u66f4<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                                \u9577\u671f\u7dad\u8b77\u6700\u4f73\u5be6\u52d9<\/strong><\/h2>\n

                                \u5be6\u65bd\u9019\u4e9b\u7b56\u7565\u4ee5\u4fdd\u6301\u6301\u7e8c\u7684\u6700\u4f73\u6548\u80fd\uff1a<\/p>\n

                                \n
                                • \u5b9a\u671f\u7cfb\u7d71\u7dad\u8b77\uff1a\n
                                  \n
                                  • \u6bcf\u9031\u65e5\u8a8c\u8f2a\u63db\u548c\u5206\u6790<\/li>\n
                                  • \u6bcf\u6708\u6548\u80fd\u7a3d\u6838<\/li>\n
                                  • \u6bcf\u5b63\u5ea6\u5b89\u5168\u8a55\u4f30<\/li>\n<\/ul>\n<\/li>\n
                                  • \u8cc7\u6e90\u64f4\u5c55\u6307\u5357\uff1a\n
                                    \n
                                    • \u76e3\u63a7\u6210\u9577\u8da8\u52e2<\/li>\n
                                    • \u898f\u5283\u5bb9\u91cf\u5347\u7d1a<\/li>\n
                                    • \u5be6\u65bd\u8ca0\u8f09\u5e73\u8861<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                                      \u5e38\u898b\u5834\u666f\u6545\u969c\u6392\u9664<\/strong><\/h2>\n

                                      \u8655\u7406\u9019\u4e9b\u983b\u7e41\u51fa\u73fe\u7684CPU\u5bc6\u96c6\u578b\u60c5\u6cc1\uff1a<\/p>\n

                                      \n
                                      • \u9ad8\u8ca0\u8f09\u4f46CPU\u4f7f\u7528\u7387\u4e0d\u9ad8\uff1a\n
                                        \n
                                        • \u6aa2\u67e5I\/O\u7b49\u5f85\u7a0b\u5e8f<\/li>\n
                                        • \u5206\u6790\u78c1\u789f\u6548\u80fd<\/li>\n
                                        • \u76e3\u63a7\u7db2\u8def\u74f6\u9838<\/li>\n<\/ul>\n<\/li>\n
                                        • CPU\u7a81\u7136\u5cf0\u503c\uff1a\n
                                          \n
                                          • \u6aa2\u67e5cron\u4efb\u52d9<\/li>\n
                                          • \u6aa2\u67e5\u5099\u4efd\u7a0b\u5e8f<\/li>\n
                                          • \u76e3\u63a7\u61c9\u7528\u7a0b\u5f0f\u90e8\u7f72<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                                            \u4f3a\u670d\u5668\u57fa\u790e\u8a2d\u65bd\u7684\u672a\u4f86\u898f\u5283<\/strong><\/h2>\n

                                            \u8003\u616e\u9019\u4e9b\u9032\u968e\u512a\u5316\u7b56\u7565\uff1a<\/p>\n

                                            \n
                                            • \u5bb9\u5668\u7de8\u6392\uff1a\n
                                              \n
                                              • \u8cc7\u6e90\u5206\u914d\u9650\u5236<\/li>\n
                                              • \u81ea\u52d5\u64f4\u5c55\u7b56\u7565<\/li>\n
                                              • \u8ca0\u8f09\u5206\u914d\u898f\u5247<\/li>\n<\/ul>\n<\/li>\n
                                              • \u9810\u6e2c\u5206\u6790\uff1a\n
                                                \n
                                                • \u57fa\u65bc\u6a5f\u5668\u5b78\u7fd2\u7684\u76e3\u63a7<\/li>\n
                                                • \u81ea\u52d5\u61c9\u8b8a\u7cfb\u7d71<\/li>\n
                                                • \u6548\u80fd\u9810\u6e2c\u6a21\u578b<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                                                  \u7d50\u8ad6<\/strong><\/h2>\n

                                                  \u512a\u5316\u65e5\u672c\u5c08\u7528\u4f3a\u670d\u5668\u7684CPU\u8ca0\u8f09\u9700\u8981\u5c07\u7cfb\u7d71\u512a\u5316\u3001\u5b89\u5168\u63aa\u65bd\u548c\u6548\u80fd\u76e3\u63a7\u76f8\u7d50\u5408\u7684\u7d9c\u5408\u65b9\u6cd5\u3002\u900f\u904e\u5be6\u65bd\u9019\u4e9b\u5148\u9032\u6280\u8853\u4e26\u4fdd\u6301\u8b66\u89ba\u76e3\u7763\uff0c\u6280\u8853\u5c08\u696d\u4eba\u54e1\u53ef\u4ee5\u78ba\u4fdd\u65e5\u672c\u4f3a\u670d\u5668\u74b0\u5883\u4e2d\u7684\u6700\u4f73\u4f3a\u670d\u5668\u6548\u80fd\u3002\u5b9a\u671f\u8a55\u4f30\u548c\u66f4\u65b0\u512a\u5316\u7b56\u7565\u5c07\u6709\u52a9\u65bc\u7dad\u6301\u5cf0\u503c\u6548\u80fd\u4e26\u9632\u6b62CPU\u76f8\u95dc\u554f\u984c\u3002<\/p>\n

                                                  \u8981\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u65e5\u672c\u4f3a\u670d\u5668\u512a\u5316\u548c\u4f3a\u670d\u5668\u79df\u7528\u89e3\u6c7a\u65b9\u6848\u7684\u8cc7\u8a0a\uff0c\u8acb\u700f\u89bd\u6211\u5011\u7684\u5176\u4ed6\u6280\u8853\u6307\u5357\u548c\u8cc7\u6e90\u3002\u4e86\u89e3CPU\u8ca0\u8f09\u7ba1\u7406\u5c0d\u65bc\u5728\u65e5\u672c\u52d5\u614b\u6280\u8853\u74b0\u5883\u4e2d\u7dad\u8b77\u9ad8\u6548\u80fd\u5c08\u7528\u4f3a\u670d\u5668\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

                                                  \u7ba1\u7406\u65e5\u672c\u5c08\u7528\u4f3a\u670d\u5668\u7684CPU\u8ca0\u8f09\u9700\u8981\u5c07\u7cfb\u7d71\u5c64\u7d1a\u512a\u5316\u3001\u5b89\u5168\u63aa\u65bd\u548c\u6548\u80fd\u8abf\u6821\u76f8\u7d50\u5408\u7684\u8907\u96dc\u65b9\u6cd5\u3002\u672c\u7d9c\u5408\u6307\u5357\u70ba\u5728\u65e5\u672c\u4f3a\u670d\u5668 […]<\/p>\n

                                                  Read More…<\/a><\/p>\n","protected":false},"author":2,"featured_media":26907,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8116],"tags":[8730,8733,8731,8732,8384],"class_list":["post-26912","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-japan-dedicated-server-tc","tag-japan-server-optimization-tc","tag-dedicated-hosting-japan-tc","tag-cpu-load-management-tc","tag-server-performance-tuning-tc","tag-linux-server-optimization-tc"],"acf":[],"yoast_head":"\n