本次性能优化基于 /etc/sysctl.conf 文件,由于配置了bbr拥塞算法,请确认内核版本。

# # /etc/sysctl.conf - Configuration file for setting system variables # See /etc/sysctl.d/ for additional system variables. # See sysctl.conf (5) for information. # #kernel.domainname = example.com # Uncomment the following to stop low-level messages on console kernel.printk = 3 4 1 3 ##############################################################3 # Functions previously found in netbase # # Uncomment the next two lines to enable Spoof protection (reverse-path filter) # Turn on Source Address Verification in all interfaces to # prevent some spoofing attacks net.ipv4.conf.default.rp_filter=1 net.ipv4.conf.all.rp_filter=1 # Uncomment the next line to enable TCP/IP SYN cookies # See http://lwn.net/Articles/277146/ # Note: This may impact IPv6 TCP sessions too net.ipv4.tcp_syncookies=1 # Uncomment the next line to enable packet forwarding for IPv4 net.ipv4.ip_forward=1 # Uncomment the next line to enable packet forwarding for IPv6 # Enabling this option disables Stateless Address Autoconfiguration # based on Router Advertisements for this host #net.ipv6.conf.all.forwarding=1 ################################################################### # Additional settings - these settings can improve the network # security of the host and prevent against some network attacks # including spoofing attacks and man in the middle attacks through # redirection. Some network environments, however, require that these # settings are disabled so review and enable them as needed. # # Do not accept ICMP redirects (prevent MITM attacks) net.ipv4.conf.all.accept_redirects = 0 #net.ipv6.conf.all.accept_redirects = 0 # _or_ # Accept ICMP redirects only for gateways listed in our default # gateway list (enabled by default) # net.ipv4.conf.all.secure_redirects = 1 # # Do not send ICMP redirects (we are not a router) #net.ipv4.conf.all.send_redirects = 0 # # Do not accept IP source route packets (we are not a router) #net.ipv4.conf.all.accept_source_route = 0 #net.ipv6.conf.all.accept_source_route = 0 # # Log Martian Packets #net.ipv4.conf.all.log_martians = 1 # ################################################################### # Magic system request Key # 0=disable, 1=enable all # Debian kernels have this set to 0 (disable the key) # See https://www.kernel.org/doc/Documentation/sysrq.txt # for what other values do #kernel.sysrq=1 ################################################################### # Protected links # # Protects against creating or following links under certain conditions # Debian kernels have both set to 1 (restricted) # See https://www.kernel.org/doc/Documentation/sysctl/fs.txt #fs.protected_hardlinks=0 #fs.protected_symlinks=0 vm.swappiness=60 net.ipv4.tcp_congestion_control=bbr net.ipv4.tcp_sack = 1 net.ipv4.tcp_fack = 1 net.ipv4.tcp_frto = 2 net.ipv4.tcp_moderate_rcvbuf = 1 net.ipv4.tcp_fastopen = 3 #ADDON net.ipv4.tcp_syn_retries = 2 net.ipv4.tcp_synack_retries = 2 net.ipv4.tcp_max_syn_backlog = 4096 net.ipv4.tcp_timestamps = 1 net.ipv4.tcp_window_scaling = 1 net.ipv4.tcp_rmem = 8192 87380 16777216 net.ipv4.udp_rmem_min = 16384 net.core.rmem_default = 262144 net.core.rmem_max = 16777216 net.ipv4.tcp_wmem = 8192 65536 16777216 net.ipv4.udp_wmem_min = 16384 net.core.wmem_default = 262144 net.core.wmem_max = 16777216 net.core.somaxconn = 32768 net.core.netdev_max_backlog = 16384 net.core.dev_weight = 64 net.core.optmem_max = 65535 net.ipv4.tcp_max_tw_buckets = 1440000 net.ipv4.tcp_max_orphans = 16384 net.ipv4.tcp_orphan_retries = 0 net.ipv4.ipfrag_low_thresh = 196608 net.ipv6.ip6frag_low_thresh = 196608 net.ipv4.ipfrag_high_thresh = 262144 net.ipv6.ip6frag_high_thresh = 262144 net.unix.max_dgram_qlen = 50 net.ipv4.neigh.default.gc_thresh3 = 2048 net.ipv4.neigh.default.gc_thresh2 = 1024 net.ipv4.neigh.default.gc_thresh1 = 32 net.ipv4.neigh.default.gc_interval = 30 net.ipv4.neigh.default.proxy_qlen = 96 net.ipv4.neigh.default.unres_qlen = 6 net.ipv4.tcp_ecn = 1 net.ipv4.tcp_reordering = 3 net.ipv4.tcp_slow_start_after_idle = 0 net.ipv4.route.flush = 1 net.ipv6.route.flush = 1
Code language: PHP (php)
分类: Linux

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