\u8a18\u61b6\u9ad4\u6d6a\u8cbb\u662f\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u4e2d\u7684\u4e3b\u8981\u6548\u80fd\u74f6\u9838\u2014\u2014\u5373\u4fbf\u914d\u7f6e32GB\u8a18\u61b6\u9ad4\uff0c\u82e5\u7121\u7528\u670d\u52d9\u4f54\u7528\u8cc7\u6e90\uff0c\u4ecd\u6703\u5c0e\u81f4\u4f3a\u670d\u5668\u8b8a\u6162\u3002\u53ef\u900f\u904e\u4ee5\u4e0b\u6b65\u9a5f\u512a\u5316\uff1a<\/p>\n

\n
• \u8a3a\u65b7\u8a18\u61b6\u9ad4\u6d29\u6f0f\uff1a\u904b\u884cfree -h<\/code>\u8207vmstat 5 10<\/code>\u8ffd\u8e64buff\/cache<\/code>\u589e\u9577\u60c5\u6cc1\uff1b\u4f7f\u7528ps aux --sort=-%mem<\/code>\u5b9a\u4f4d\u8a18\u61b6\u9ad4\u4f54\u7528\u5927\u6236\uff08\u5982\u672a\u4f7f\u7528\u7684Java\u670d\u52d9\uff09\u3002<\/li>\n
• \u505c\u7528\u4e0d\u5fc5\u8981\u7684\u670d\u52d9\uff1a\u900f\u904esystemctl disable --now avahi-daemon<\/code>\u7981\u7528avahi-daemon<\/code>\u3001bluetooth<\/code>\u6216postfix<\/code>\u7b49\u975e\u5fc5\u8981\u670d\u52d9\uff08\u6b64\u985e\u670d\u52d9\u5c0d\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u5834\u666f\u7121\u5be6\u969b\u50f9\u503c\uff09\u3002<\/li>\n
• \u512a\u5316\u5206\u9801\u5feb\u53d6\uff1a\u5728sysctl.conf<\/code>\u4e2d\u8a2d\u5b9avm.vfs_cache_pressure = 50<\/code>\uff0c\u512a\u5148\u4fdd\u7559\u76ee\u9304\/\u6a94\u6848\u5feb\u53d6\uff08\u53ef\u52a0\u5feb\u7f8e\u570b\u96fb\u5546\u7522\u54c1\u9801\u9762\u7684\u91cd\u8907\u8b80\u53d6\u901f\u5ea6\uff09\u3002<\/li>\n<\/ul>\n<\/h2>\n

  4. \u78c1\u789fI\/O\u512a\u5316\uff1a\u9002\u914d\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u7684SSD\/HDD\u5132\u5b58<\/strong><\/h2>\n

  \u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u4f9b\u61c9\u5546\u901a\u5e38\u63d0\u4f9b\u6df7\u5408\u5132\u5b58\u65b9\u6848\uff08SSD\u7528\u65bc\u4f5c\u696d\u7cfb\u7d71\uff0cHDD\u7528\u65bc\u6d77\u91cf\u8cc7\u6599\uff09\u2014\u2014I\/O\u914d\u7f6e\u4e0d\u7576\u6703\u5f15\u767c\u6548\u80fd\u74f6\u9838\uff0c\u53ef\u6309\u4ee5\u4e0b\u65b9\u5f0f\u512a\u5316\uff1a<\/p>\n

  \n
  • \u5206\u6790I\/O\u8ca0\u8f09\uff1a\u4f7f\u7528iostat -x 5<\/code>\u6aa2\u67e5%util<\/code>\uff08\u76ee\u6a19\u503c\u9700\u4f4e\u65bc80%\uff09\uff1b\u900f\u904eiotop -o<\/code>\u8b58\u5225\u4f54\u7528\u78c1\u789f\u8cc7\u6e90\u7684\u7a0b\u5e8f\uff08\u5982\u65e5\u8a8c\u5beb\u5165\u7a0b\u5e8f\uff09\u3002<\/li>\n
  • \u512a\u5316\u6a94\u6848\u7cfb\u7d71\uff1a\n
    \n
    • SSD\uff08\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u7684\u7cfb\u7d71\u789f\uff09\uff1a\u4f7f\u7528XFS\u6a94\u6848\u7cfb\u7d71\uff0c\u642d\u914dnoatime,nodiratime,discard<\/code>\u639b\u8f09\u53c3\u6578\uff08\u7981\u7528\u5b58\u53d6\u6642\u9593\u65e5\u8a8c\uff0c\u555f\u7528TRIM\u529f\u80fd\uff09\u3002<\/li>\n
    • HDD\uff08\u6d77\u91cf\u5132\u5b58\u789f\uff09\uff1a\u4f7f\u7528ext4\u6a94\u6848\u7cfb\u7d71\uff0c\u8a2d\u5b9adata=writeback<\/code>\u4ee5\u964d\u4f4e\u975e\u95dc\u9375\u8cc7\u6599\u7684\u65e5\u8a8c\u958b\u92b7\u3002<\/li>\n<\/ul>\n<\/li>\n
    • RAID\u914d\u7f6e\uff1a\u8b80\u5bc6\u96c6\u578b\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u5834\u666f\uff08\u5982CDN\uff09\u9078\u64c7RAID 0\uff1b\u5e73\u8861\u6548\u80fd\u8207\u8cc7\u6599\u5b89\u5168\u6027\u7684\u5834\u666f\uff08\u5982\u7f8e\u570b\u4f3a\u670d\u5668\u8a17\u7ba1\u8cc7\u6599\u5eab\uff09\u9078\u64c7RAID 5\u3002<\/li>\n<\/ul>\n<\/h2>\n

      5. \u7db2\u8def\u512a\u5316\uff1a\u6539\u5584\u7f8e\u570b\u8207\u5168\u7403\u7684\u7db2\u8def\u5ef6\u9072<\/strong><\/h2>\n

      \u670d\u52d9\u5168\u7403\u4f7f\u7528\u8005\u7684\u7f8e\u570b\u4f3a\u670d\u5668\u9762\u81e8\u7368\u7279\u7684\u7db2\u8def\u6311\u6230\uff08\u5982\u8de8\u5927\u897f\u6d0b\u8cc7\u6599\u5305\u907a\u5931\uff09\uff0c\u53ef\u900f\u904e\u4ee5\u4e0b\u65b9\u5f0f\u512a\u5316\uff1a<\/p>\n

      \n
      • \u76e3\u63a7\u983b\u5bec\u4f7f\u7528\uff1a\u4f7f\u7528iftop -i eth0<\/code>\u8ffd\u8e64\u6d41\u91cf\u60c5\u6cc1\uff0c\u6aa2\u67e5\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u76841Gbps\/10Gbps\u57e0\u662f\u5426\u98fd\u548c\u3002<\/li>\n
      • \u64f4\u5927\u7db2\u8def\u7de9\u885d\u5340\uff1a\u5728sysctl.conf<\/code>\u4e2d\u8a2d\u5b9anet.core.somaxconn = 1024<\/code>\u8207net.core.netdev_max_backlog = 2048<\/code>\uff0c\u61c9\u5c0d\u6d41\u91cf\u5c16\u5cf0\uff08\u5982\u7f8e\u570b\u9ed1\u8272\u661f\u671f\u4e94\u4fc3\u92b7\u6d3b\u52d5\uff09\u3002<\/li>\n
      • \u63d0\u5347\u9632\u706b\u7246\u6548\u7387\uff1a\u7c21\u5316iptables<\/code>\u898f\u5247\uff0c\u4f7f\u7528-m conntrack --ctstate ESTABLISHED,RELATED<\/code>\u907f\u514d\u91cd\u8907\u8655\u7406\u5df2\u5efa\u7acb\u9023\u7dda\uff08\u5c0d\u8655\u740610000+\u4f75\u767c\u4f7f\u7528\u8005\u7684\u7f8e\u570b\u4f3a\u670d\u5668\u81f3\u95dc\u91cd\u8981\uff09\u3002<\/li>\n<\/ul>\n<\/h2>\n

        6. \u670d\u52d9\u5c08\u9805\u512a\u5316\uff08Nginx\/Apache\/MySQL\uff09<\/strong><\/h2>\n

        \u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u5834\u666f\u4e2d\u5e38\u7528\u4e09\u5927\u6838\u5fc3\u670d\u52d9\u2014\u2014\u9700\u6839\u64da\u4f3a\u670d\u5668\u786c\u9ad4\u8abf\u6574\u5176\u914d\u7f6e\uff1a<\/p>\n

        \n
        • Nginx\uff1a\n
          \n
          • worker_processes auto;<\/code>\uff1a\u8207CPU\u6838\u5fc3\u6578\u5339\u914d\uff08\u7f8e\u570b\u4f3a\u670d\u5668\u901a\u5e38\u914d\u7f6e4-32\u6838\uff09\u3002<\/li>\n
          • worker_connections 10240;<\/code>\uff1a\u63d0\u9ad8\u4f75\u767c\u9023\u7dda\u6578\uff08\u6839\u64da\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u7684\u983b\u5bec\u914d\u7f6e\u8abf\u6574\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n
          • Apache\uff1a\n
            \n
            • \u4f7f\u7528mpm_event_module<\/code>\uff08\u800c\u975eprefork\u6a21\u7d44\uff09\u4ee5\u652f\u63f4\u9ad8\u4f75\u767c\u3002<\/li>\n
            • \u8a2d\u5b9aMaxRequestWorkers 512<\/code>\uff08\u907f\u514d\u8d85\u8f098GB\u4ee5\u4e0a\u8a18\u61b6\u9ad4\u7684\u7f8e\u570b\u4f3a\u670d\u5668\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n
            • MySQL\uff1a\n
              \n
              • innodb_buffer_pool_size = 8G<\/code>\uff1a\u5206\u914d\u8a18\u61b6\u9ad4\u768450%-70%\uff08\u598216GB\u8a18\u61b6\u9ad4\u7684\u7f8e\u570b\u4f3a\u670d\u5668\u5206\u914d8GB\uff09\u3002<\/li>\n
              • query_cache_type = 0<\/code>\uff1a\u7981\u7528\u904e\u6642\u7684\u67e5\u8a62\u5feb\u53d6\uff08\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u5834\u666f\u5efa\u8b70\u4f7f\u7528Redis\u66ff\u4ee3\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/h2>\n

                7. \u4ea4\u63db\u5206\u5272\u5340\uff1a\u907f\u514d\u904e\u65e9\u4f7f\u7528<\/strong><\/h2>\n

                \u914d\u7f6e8GB\u4ee5\u4e0a\u8a18\u61b6\u9ad4\u7684\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u5834\u666f\u901a\u5e38\u7121\u9700\u983b\u7e41\u4f7f\u7528\u4ea4\u63db\u5206\u5272\u5340\uff0c\u4f46\u914d\u7f6e\u4e0d\u7576\u4ecd\u6703\u964d\u4f4e\u6548\u80fd\uff1a<\/p>\n

                \n
                1. \u5408\u7406\u8a2d\u5b9a\u4ea4\u63db\u5206\u5272\u5340\u5927\u5c0f\uff1a16GB\u8a18\u61b6\u9ad4\u4f3a\u670d\u5668\u914d\u7f6e8GB\u4ea4\u63db\u5206\u5272\u5340\uff0c32GB\u4ee5\u4e0a\u8a18\u61b6\u9ad4\u4f3a\u670d\u5668\u914d\u7f6e16GB\u4ea4\u63db\u5206\u5272\u5340\uff08\u907f\u514d\u70ba\u5927\u8a18\u61b6\u9ad4\u7f8e\u570b\u4f3a\u670d\u5668\u8a2d\u5b9a2\u500d\u8a18\u61b6\u9ad4\u7684\u4ea4\u63db\u5206\u5272\u5340\uff09\u3002<\/li>\n
                2. \u8abf\u6574vm.swappiness<\/code>\u53c3\u6578\uff1a\u8a2d\u5b9a\u70ba5-10\uff08\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u5834\u666f\u61c9\u512a\u5148\u4f7f\u7528\u8a18\u61b6\u9ad4\uff0c\u50c5\u7576\u8a18\u61b6\u9ad4\u4f7f\u7528\u7387\u905495%\u4ee5\u4e0a\u6642\u555f\u7528\u4ea4\u63db\u5206\u5272\u5340\uff09\u3002<\/li>\n
                3. \u53ef\u9078\u555f\u7528zram\uff1a\u8a18\u61b6\u9ad4\u6709\u9650\u7684\u7f8e\u570b\u4f3a\u670d\u5668\u8a17\u7ba1\u5834\u666f\uff0c\u53ef\u900f\u904ezramctl<\/code>\u555f\u7528\u8a18\u61b6\u9ad4\u4e2d\u7684\u58d3\u7e2e\u4ea4\u63db\u5206\u5272\u5340\uff08\u6e1b\u5c11\u78c1\u789fI\/O\uff09\u3002<\/li>\n<\/ol>\n<\/h2>\n

                   8. \u65e5\u8a8c\u7ba1\u7406\uff1a\u6e1b\u5c11\u78c1\u789f\u4f54\u7528<\/strong><\/h2>\n

                   \u7f8e\u570b\u4f3a\u670d\u5668\u6703\u751f\u6210GB\u7d1a\u65e5\u8a8c\uff08\u5b58\u53d6\u65e5\u8a8c\u3001\u932f\u8aa4\u65e5\u8a8c\uff09\u2014\u2014\u672a\u53d7\u63a7\u7684\u65e5\u8a8c\u6703\u4f54\u7528SSD\u7a7a\u9593\uff1a<\/p>\n

                   \n
                   • \u914d\u7f6elogrotate<\/code>\uff1a\u91dd\u5c0dNginx\/Apache\uff0c\u8a2d\u5b9aweekly<\/code>\uff08\u6bcf\u9031\u8f2a\u8f49\uff09\u3001maxsize 100M<\/code>\uff08\u6700\u5927\u65e5\u8a8c\u5927\u5c0f\uff09\u8207rotate 4<\/code>\uff08\u4fdd\u75594\u9031\u65e5\u8a8c\uff09\u3002<\/li>\n
                   • \u5c07\u65e5\u8a8c\u9077\u79fb\u81f3HDD\uff1a\u5c07\/var\/log<\/code>\u639b\u8f09\u5230\u5c08\u7528HDD\uff08\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u901a\u5e38\u5305\u542b1TB HDD\u7528\u65bc\u6d77\u91cf\u5132\u5b58\uff09\uff0c\u57f7\u884c\u6307\u4ee4mount \/dev\/sdb1 \/var\/log<\/code>\u3002<\/li>\n
                   • \u7981\u7528\u591a\u9918\u65e5\u8a8c\uff1a\u95dc\u9589Nginx\/MySQL\u7684debug<\/code>\u6a21\u5f0f\uff08\u7f8e\u570b\u751f\u7522\u74b0\u5883\u4f3a\u670d\u5668\u7121\u9700\u7d30\u7c92\u5ea6\u9664\u932f\u65e5\u8a8c\uff09\u3002<\/li>\n<\/ul>\n<\/h2>\n

                     9. \u6392\u7a0b\u4efb\u52d9\uff1a\u907f\u958b\u7f8e\u570b\u696d\u52d9\u9ad8\u5cf0<\/strong><\/h2>\n

                     \u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u5834\u666f\u5b58\u5728\u696d\u52d9\u9ad8\u5cf0\u6642\u6bb5\uff08\u7f8e\u570b\u6771\u90e8\u6642\u95939:00-17:00\uff09\u2014\u2014\u9ad8\u5cf0\u6642\u6bb5\u57f7\u884c\u6392\u7a0b\u4efb\u52d9\u6703\u5c0e\u81f4\u6548\u80fd\u4e0b\u964d\uff1a<\/p>\n

                     \n
                     1. \u5217\u51fa\u7576\u524d\u6392\u7a0b\u4efb\u52d9\uff1a\u904b\u884ccrontab -l<\/code>\u8b58\u5225\u9ad8\u8cc7\u6e90\u6d88\u8017\u4efb\u52d9\uff08\u5982mysqldump<\/code>\u5099\u4efd\uff09\u3002<\/li>\n
                     2. \u8abf\u6574\u81f3\u975e\u9ad8\u5cf0\u6642\u6bb5\u57f7\u884c\uff1a\u5c07\u5099\u4efd\u4efb\u52d9\u8a2d\u5b9a\u5728\u7f8e\u6771\u6642\u95932:00-4:00\uff08\u7f8e\u570b\u4f3a\u670d\u5668\u6d41\u91cf\u4f4e\u8c37\u671f\uff09\uff0c\u6307\u4ee4\u793a\u4f8b\uff1a0 2 * * * \/usr\/bin\/mysqldump > \/backup\/db.sql<\/code>\u3002<\/li>\n
                     3. \u6e05\u7406\u81e8\u6642\u6a94\u6848\uff1a\u65b0\u589e0 3 * * * rm -rf \/tmp\/*<\/code>\u6392\u7a0b\u4efb\u52d9\uff0c\u5b9a\u671f\u6e05\u7406\/tmp<\/code>\u76ee\u9304\uff08\u907f\u514d\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u5834\u666f\u51fa\u73fe\u78c1\u789f\u6eff\u984d\u932f\u8aa4\uff09\u3002<\/li>\n<\/ol>\n<\/h2>\n

                        10. \u76e3\u63a7\uff1a\u8ffd\u8e64\u7f8e\u570b\u4f3a\u670d\u5668\u904b\u884c\u6307\u6a19<\/strong><\/h2>\n

                        \u7121\u76e3\u63a7\u7684\u512a\u5316\u7b49\u540c\u65bc\u76f2\u76ee\u64cd\u4f5c\u2014\u2014\u9700\u90e8\u7f72\u5de5\u5177\u8ffd\u8e64\u7f8e\u570b\u4f3a\u670d\u5668\u5065\u5eb7\u72c0\u614b\uff1a<\/p>\n

                        \n
                        • \u5373\u6642\u5100\u8868\u677f\uff1a\u4f7f\u7528Prometheus+Grafana\u76e3\u63a7CPU\uff08node_cpu_usage<\/code>\uff09\u3001\u8a18\u61b6\u9ad4\uff08node_memory_usage<\/code>\uff09\u8207\u7db2\u8def\uff08node_network_transmit_bytes<\/code>\uff09\u6307\u6a19\u3002<\/li>\n
                        • \u544a\u8b66\u914d\u7f6e\uff1a\u900f\u904eZabbix\u8a2d\u5b9a\u95be\u503c\u544a\u8b66\uff08\u5982CPU\u4f7f\u7528\u7387\u9023\u7e8c5\u5206\u9418\u8d8590%\u3001\u78c1\u789f\u5269\u9918\u7a7a\u9593\u4f4e\u65bc10%\uff09\uff0c\u78ba\u4fdd\u5728\u4f7f\u7528\u8005\u611f\u77e5\u524d\u89e3\u6c7a\u554f\u984c\u3002<\/li>\n
                        • \u9577\u671f\u5206\u6790\uff1a\u4f7f\u7528sar -o \/var\/log\/sar\/daily 5 720<\/code>\uff08\u64f7\u53d61\u5c0f\u6642\u8cc7\u6599\uff09\u8b58\u5225\u8da8\u52e2\uff08\u5982\u7f8e\u570b\u96fb\u5546\u4f3a\u670d\u5668\u7684\u6bcf\u9031I\/O\u5c16\u5cf0\uff09\u3002<\/li>\n<\/ul>\n<\/h2>\n

                          \u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\/\u8a17\u7ba1\uff1a\u7279\u6b8a\u512a\u5316\u6ce8\u610f\u4e8b\u9805<\/strong><\/h2>\n

                          \u7f8e\u570b\u5730\u5340\u4f3a\u670d\u5668\u5b58\u5728\u7368\u7279\u7d04\u675f\u2014\u2014\u9700\u91dd\u5c0d\u6027\u8abf\u6574\u512a\u5316\u7b56\u7565\uff1a<\/p>\n

                          \n
                          • \u7db2\u8def\u62d3\u64b2\uff1a\u7f8e\u570b\u6771\u897f\u6d77\u5cb8\u4f3a\u670d\u5668\u7684\u7db2\u8def\u5c0d\u7b49\u9023\u63a5\u4e0d\u540c\uff08\u5982\u6771\u6d77\u5cb8\u8207\u6b50\u6d32\u9023\u63a5\u66f4\u5feb\uff09\u3002\u6771\u6d77\u5cb8\u4f3a\u670d\u5668\u5c07tcp_syn_retries<\/code>\u8a2d\u70ba3\uff0c\u897f\u6d77\u5cb8\u8a2d\u70ba4\uff08\u6e1b\u5c11\u91cd\u50b3\u5ef6\u9072\uff09\u3002<\/li>\n
                          • \u786c\u9ad4\u5dee\u7570\uff1a\u7f8e\u570b\u4f3a\u670d\u5668\u8a17\u7ba1\u4f9b\u61c9\u5546\u4f7f\u7528\u6df7\u5408\u786c\u9ad4\uff08\u5982\u6234\u723eR750\u3001\u60e0\u666eDL380\uff09\u3002\u9700\u91dd\u5c0d\u5177\u9ad4\u4f3a\u670d\u5668\u578b\u865f\u6e2c\u8a66\u6838\u5fc3\u88dc\u4e01\uff0c\u907f\u514d\u7a69\u5b9a\u6027\u554f\u984c\u3002<\/li>\n
                          • \u5408\u898f\u8981\u6c42\uff1a\u512a\u5316\u6642\u9700\u78ba\u4fdd\u65e5\u8a8c\uff08\u5982PCI-DSS\u5408\u898f\u65e5\u8a8c\uff09\u7559\u5b58\u7b26\u5408\u7f8e\u570b\u8cc7\u6599\u7559\u5b58\u6cd5\u898f\uff0c\u540c\u6642\u907f\u514d\u65e5\u8a8c\u904e\u5ea6\u81a8\u8139\u2014\u2014\u9700\u5c07logrotate<\/code>\u914d\u7f6e\u8207\u5408\u898f\u8981\u6c42\u5c0d\u9f4a\u3002<\/li>\n<\/ul>\n<\/h2>\n

                            \u5e38\u898b\u554f\u984c\uff1a\u7f8e\u570b\u4f3a\u670d\u5668\u7684Linux\u512a\u5316<\/strong><\/h2>\n

                            \n
                            • \u7f8e\u570b\u4f3a\u670d\u5668\u512a\u5316\u5f8c\u6548\u80fd\u7121\u63d0\u5347\uff0c\u554f\u984c\u51fa\u5728\u54ea\uff1f<\/strong>\u900f\u904edmesg<\/code>\u67e5\u770b\u6838\u5fc3\u932f\u8aa4\uff08\u5982\u4e0d\u76f8\u5bb9\u6a21\u7d44\uff09\uff0c\u6216\u4f7f\u7528perf top<\/code>\u5b9a\u4f4dCPU\u4f54\u7528\u5927\u6236\u3002\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u5e38\u4f7f\u7528\u5171\u4eab\u7db2\u8def\u93c8\u8def\u2014\u2014\u9700\u8207\u4f9b\u61c9\u5546\u78ba\u8a8d\u983b\u5bec\u662f\u5426\u9054\u6a19\u3002<\/li>\n
                            • \u7f8e\u570bLinux\u4f3a\u670d\u5668\u512a\u5316\u7684\u5e38\u898b\u65b0\u624b\u932f\u8aa4\u662f\u4ec0\u9ebc\uff1f<\/strong>\u5c07vm.swappiness<\/code>\u8a2d\u70ba0\uff08\u5b8c\u5168\u7981\u7528\u4ea4\u63db\u5206\u5272\u5340\uff09\u3002\u5373\u4fbf16GB\u4ee5\u4e0a\u8a18\u61b6\u9ad4\u7684\u7f8e\u570b\u4f3a\u670d\u5668\uff0c\u4ecd\u9700\u4fdd\u7559\u4ea4\u63db\u5206\u5272\u5340\u4ee5\u61c9\u5c0d\u8a18\u61b6\u9ad4\u6ea2\u4f4d\uff08OOM\uff09\u554f\u984c\uff0c\u5efa\u8b70\u8a2d\u70ba5-10\u3002<\/li>\n
                            • \u5982\u4f55\u70ba\u7f8e\u570b\u9ed1\u8272\u661f\u671f\u4e94\uff08\u9ad8\u4f75\u767c\u5834\u666f\uff09\u512a\u5316\uff1f<\/strong>\u5c07Nginx\u7684worker_connections<\/code>\u63d0\u5347\u81f320480\uff0c\u555f\u7528Redis\u5feb\u53d6MySQL\u67e5\u8a62\uff0c\u9ad8\u5cf0\u6642\u6bb5\u81e8\u6642\u66ab\u505c\u975e\u95dc\u9375\u6392\u7a0b\u4efb\u52d9\uff08\u5982\u5099\u4efd\uff09\u3002<\/li>\n<\/ul>\n<\/h2>\n

                              \u70ba\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u8207\u8a17\u7ba1\u5834\u666f\u512a\u5316Linux\u4f3a\u670d\u5668\uff0c\u4e26\u975e\u300c\u4e00\u5200\u5207\u300d\u7684\u53c3\u6578\u8abf\u6574\u2014\u2014\u800c\u662f\u9700\u5c07\u6838\u5fc3\u3001CPU\u3001\u8a18\u61b6\u9ad4\u3001\u7db2\u8def\u914d\u7f6e\u8207\u786c\u9ad4\u3001\u5de5\u4f5c\u8ca0\u8f09\u53ca\u5168\u7403\u4f7f\u7528\u8005\u7fa4\u9ad4\u5c0d\u9f4a\u3002\u9075\u5faa\u901910\u500b\u6975\u5ba2\u7d1a\u6280\u5de7\uff0c\u53ef\u6709\u6548\u964d\u4f4e\u5ef6\u9072\u3001\u63d0\u5347\u53ef\u7528\u6027\uff0c\u78ba\u4fdd\u7f8e\u570b\u4f3a\u670d\u5668\u5728\u6d41\u91cf\u5c16\u5cf0\uff08\u5982\u9ed1\u8272\u661f\u671f\u4e94\uff09\u671f\u9593\u7a69\u5b9a\u904b\u884c\u3002\u9700\u6ce8\u610f\uff1aLinux\u4f3a\u670d\u5668\u6548\u80fd\u512a\u5316\u662f\u8fed\u4ee3\u904e\u7a0b\u2014\u2014\u96a8\u8457\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u9700\u6c42\u589e\u9577\uff0c\u9700\u900f\u904e\u76e3\u63a7\u5de5\u5177\u6301\u7e8c\u512a\u5316\u914d\u7f6e\u3002\u7121\u8ad6\u904b\u884c\u5c0f\u578b\u4f3a\u670d\u5668\u8a17\u7ba1\u7bc0\u9ede\u9084\u662f\u5927\u578b\u4f3a\u670d\u5668\u79df\u7528\u96c6\u7fa4\uff0c\u9019\u4e9b\u6280\u8853\u90fd\u80fd\u8b93\u57fa\u790e\u67b6\u69cb\u4fdd\u6301\u9ad8\u6548\u7cbe\u7c21\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

                              Linux\u4f3a\u670d\u5668\u662f\u7f8e\u570b\u4f3a\u670d\u5668\u79df\u7528\u8207\u4f3a\u670d\u5668\u8a17\u7ba1\u57fa\u790e\u67b6\u69cb\u7684\u6838\u5fc3\u652f\u67f1\u2014\u2014\u5f9e\u8de8\u5883\u96fb\u5546\u5f8c\u7aef\u5230\u5168\u7403\u904a\u6232\u7bc0\u9ede\uff0c\u518d\u5230\u4f01\u696d\u96f2\u670d\u52d9 […]<\/p>\n

                              Read More…<\/a><\/p>\n","protected":false},"author":2,"featured_media":26090,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4815],"tags":[8383,8384,5229,4849,1903],"class_list":["post-26109","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-america-dedicated-server-tc","tag-linux-server-performance-tuning-tc","tag-linux-server-optimization-tc","tag-us-servers-tc","tag-us-hosting-tc","tag-1903"],"acf":[],"yoast_head":"\n