35 lines
1.1 KiB
Bash
35 lines
1.1 KiB
Bash
#!/bin/bash
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kernel_config_file=/etc/sysctl.d/import_kernel.conf
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cat >> ${kernel_config_file} <<EOF
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# 开启bbr
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net.ipv4.tcp_fastopen = 3
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net.core.default_qdisc = fq
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net.ipv4.tcp_congestion_control = bbr
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#增加缓冲区大小可以提高吞吐量
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net.core.rmem_max = 16777216
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net.core.wmem_max = 16777216
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#缩短超时时间可以提高响应速度。
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net.ipv4.tcp_fin_timeout = 15
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net.ipv4.tcp_keepalive_time = 1200
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net.ipv4.tcp_keepalive_probes = 5
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net.ipv4.tcp_keepalive_intvl = 15
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# 避免IP碎片化可以提高性能。
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net.ipv4.ipfrag_low_thresh = 65536
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net.ipv4.ipfrag_high_thresh = 131072
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# TCP SACK（选择确认）在路由器环境中通常不必要。
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net.ipv4.tcp_sack = 0
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# 快速转发可以提高转发性能。
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net.ipv4.ip_forward_fast_path = 1
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# 禁用日志记录可以节省资源。
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net.ipv4.conf.all.log_martians = 0
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net.ipv4.conf.default.log_martians = 0
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net.ipv4.route.flush=1
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# 缩短ARP超时时间可以提高ARP响应速度。
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net.ipv4.neigh.default.gc_stale_time = 120
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# 增加哈希表大小可以提高路由查找性能。
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net.ipv4.neigh.default.hash_buckets = 1024
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EOF
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sysctl -p ${kernel_config_file} |