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# read/write buffer
net.core.rmem_default = 256960
net.core.rmem_max = 256960
net.core.wmem_default = 256960
net.core.wmem_max = 256960
# disable rpfilter
net.ipv4.conf.all.rp_filter=0
net.ipv4.conf.default.rp_filter=0
# fs
fs.file-max=1048576
net.core.netdev_max_backlog=1000000
net.core.somaxconn=131072
# tcp options about TIME_WAIT
net.ipv4.tcp_fin_timeout=10
net.ipv4.tcp_tw_reuse=1
net.ipv4.tcp_max_tw_buckets=4096
net.ipv4.tcp_max_orphans=131072
net.ipv4.tcp_max_syn_backlog=131072
# bbr
net.ipv4.tcp_congestion_control=bbr
# tcp feature
net.ipv4.tcp_ecn=0
net.ipv4.tcp_sack=1
net.ipv4.tcp_timestamps=1
# disable tcp windows scaling for kernel bugs
net.ipv4.tcp_window_scaling=0
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