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high performance tuning
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## tuning by patrickz ## | |
## inspire from https://klaver.it/linux/sysctl.conf | |
## inspire from https://gist.github.com/voluntas/bc54c60aaa7ad6856e6f6a928b79ab6c | |
fs.file-max = 209708 | |
fs.suid_dumpable = 0 | |
kernel.core_uses_pid = 1 | |
kernel.exec-shield = 1 | |
kernel.kptr_restrict = 1 | |
kernel.maps_protect = 1 | |
kernel.msgmax = 65535 | |
kernel.msgmnb = 65535 | |
kernel.pid_max = 65535 | |
kernel.randomize_va_space = 2 | |
kernel.shmall = 268435456 | |
kernel.shmmax = 268435456 | |
kernel.sysrq = 0 | |
net.core.default_qdisc = fq | |
net.core.dev_weight = 64 | |
net.core.netdev_max_backlog = 16384 | |
net.core.optmem_max = 65535 | |
net.core.rmem_default = 262144 | |
net.core.rmem_max = 16777216 | |
net.core.somaxconn = 32768 | |
net.core.wmem_default = 262144 | |
net.core.wmem_max = 16777216 | |
net.ipv4.conf.all.accept_redirects = 0 | |
net.ipv4.conf.all.accept_source_route = 0 | |
net.ipv4.conf.all.bootp_relay = 0 | |
net.ipv4.conf.all.forwarding = 0 | |
net.ipv4.conf.all.log_martians = 1 | |
net.ipv4.conf.all.proxy_arp = 0a | |
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.accept_source_route = 0 | |
net.ipv4.conf.default.forwarding = 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 = 0 | |
net.ipv4.icmp_echo_ignore_broadcasts = 1 | |
net.ipv4.icmp_ignore_bogus_error_responses = 1 | |
net.ipv4.ip_forward = 0 | |
net.ipv4.ip_local_port_range = 16384 65535 | |
net.ipv4.ipfrag_high_thresh = 262144 | |
net.ipv4.ipfrag_low_thresh = 196608 | |
net.ipv4.neigh.default.gc_interval = 30 | |
net.ipv4.neigh.default.gc_thresh1 = 32 | |
net.ipv4.neigh.default.gc_thresh2 = 1024 | |
net.ipv4.neigh.default.gc_thresh3 = 2048 | |
net.ipv4.neigh.default.proxy_qlen = 96 | |
net.ipv4.neigh.default.unres_qlen = 6 | |
net.ipv4.route.flush = 1 | |
net.ipv4.tcp_congestion_control = htcp | |
net.ipv4.tcp_congestion_control = bbr | |
net.ipv4.tcp_ecn = 1 | |
net.ipv4.tcp_fastopen = 3 | |
net.ipv4.tcp_fin_timeout = 7 | |
net.ipv4.tcp_keepalive_intvl = 15 | |
net.ipv4.tcp_keepalive_probes = 5 | |
net.ipv4.tcp_keepalive_time = 300 | |
net.ipv4.tcp_max_orphans = 16384 | |
net.ipv4.tcp_max_syn_backlog = 4096 | |
net.ipv4.tcp_max_tw_buckets = 1440000 | |
net.ipv4.tcp_moderate_rcvbuf = 1 | |
net.ipv4.tcp_notsent_lowat = 16384 | |
net.ipv4.tcp_orphan_retries = 0 | |
net.ipv4.tcp_reordering = 3 | |
net.ipv4.tcp_retries1 = 3 | |
net.ipv4.tcp_retries2 = 15 | |
net.ipv4.tcp_rfc1337 = 1 | |
net.ipv4.tcp_rmem = 8192 87380 16777216 | |
net.ipv4.tcp_slow_start_after_idle = 0 | |
net.ipv4.tcp_syn_retries = 2 | |
net.ipv4.tcp_synack_retries = 2 | |
net.ipv4.tcp_syncookies = 1 | |
net.ipv4.tcp_timestamps = 1 | |
net.ipv4.tcp_tw_recycle = 0 | |
net.ipv4.tcp_tw_reuse = 1 | |
net.ipv4.tcp_window_scaling = 1 | |
net.ipv4.tcp_wmem = 8192 65536 16777216 | |
net.ipv4.udp_rmem_min = 16384 | |
net.ipv4.udp_wmem_min = 16384 | |
net.ipv6.conf.all.accept_ra=0 | |
net.ipv6.conf.all.accept_redirects = 0 | |
net.ipv6.conf.all.accept_source_route = 0 | |
net.ipv6.conf.all.autoconf=0 | |
net.ipv6.conf.all.forwarding = 0 | |
net.ipv6.conf.default.accept_ra=0 | |
net.ipv6.conf.default.accept_redirects = 0 | |
net.ipv6.conf.default.accept_source_route = 0 | |
net.ipv6.conf.default.autoconf=0 | |
net.ipv6.conf.default.forwarding = 0 | |
net.ipv6.conf.eth0.accept_ra=0 | |
net.ipv6.conf.eth0.autoconf=0 | |
net.ipv6.ip6frag_high_thresh = 262144 | |
net.ipv4.tcp_no_metrics_save = 1 | |
net.ipv6.ip6frag_low_thresh = 196608 | |
net.ipv6.route.flush = 1 | |
net.unix.max_dgram_qlen = 50 | |
vm.dirty_background_ratio = 5 | |
vm.dirty_ratio = 30 | |
vm.min_free_kbytes = 65535 | |
vm.mmap_min_addr = 4096 | |
vm.overcommit_memory = 0 | |
vm.overcommit_ratio = 50 | |
vm.swappiness = 30 |
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