/etc/sysctl.confの末端に以下を追加し、OS起動時にも起こされる「sysctl -p」で反映。
※ディストリビューションにより、使用できないコンフィグがあります、エラーが吐かれた部分は飛ばしてOK。
#/etc/sysctl.conf最下行に以下を追加 fs.inotify.max_user_watches = 524288 net.core.netdev_budget = 50000 net.core.netdev_budget_usecs = 5000 net.core.netdev_max_backlog = 65535 net.core.optmem_max = 25165824 net.core.rmem_default = 253952 net.core.rmem_max = 16777216 net.core.somaxconn = 65535 net.core.wmem_default = 253952 net.core.wmem_max = 16777216 net.ipv4.conf.all.accept_redirects = 0 net.ipv4.conf.all.log_martians = 1 net.ipv4.conf.all.rp_filter = 1 net.ipv4.conf.all.secure_redirects = 0 net.ipv4.conf.all.send_redirects = 0 net.ipv4.conf.default.accept_redirects = 0 net.ipv4.conf.default.log_martians = 1 net.ipv4.conf.default.rp_filter = 1 net.ipv4.conf.default.secure_redirects = 0 net.ipv4.conf.default.send_redirects = 0 net.ipv4.icmp_echo_ignore_all = 1 net.ipv4.ip_local_port_range = 1024 65535 net.ipv4.tcp_abort_on_overflow = 1 net.ipv4.tcp_ecn = 1 net.ipv4.tcp_fack = 1 net.ipv4.tcp_fastopen = 1 net.ipv4.tcp_fin_timeout = 10 net.ipv4.tcp_keepalive_intvl = 10 net.ipv4.tcp_keepalive_probes = 6 net.ipv4.tcp_keepalive_time = 60 net.ipv4.tcp_low_latency = 0 net.ipv4.tcp_max_syn_backlog = 30000 net.ipv4.tcp_max_tw_buckets = 2000000 net.ipv4.tcp_moderate_rcvbuf = 1 net.ipv4.tcp_no_metrics_save = 1 net.ipv4.tcp_orphan_retries = 3 net.ipv4.tcp_rfc1337 = 1 net.ipv4.tcp_sack = 1 net.ipv4.tcp_slow_start_after_idle = 0 net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_timestamps = 0 net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_window_scaling = 1 net.ipv4.tcp_rmem = 253952 253952 16777216 net.ipv4.tcp_wmem = 253952 253952 16777216 #コンフィグ編集後、「sudo sysctl -p」を実行
#NerWorkManagerを使用している場合、通信デュプレックスを1Gbpsに設定。 #もし上記を使っていない場合、「/etc/network/interfaces」最終行に以下を追加 up sleep5; /sbin/ethtool -s enp1s0 autoneg off speed 1000 duplex full $ sudo systemctl restart networking