TCP 迷之调优炼丹 V3，优化鸡非优化鸡，低延迟高延迟都有兼顾了！

@verdx #40 我没有明白，中转鸡 落地鸡口子延迟都不一样，不知道怎么填参数

参数怎么用啊？

@shizukuaoi #37 你这个retr有点高

手上的小鸡内存差异较大，方便提供数值的来源吗，例如计算公式啥的

还真有效啊，迷之炼丹术，大师，受我一拜

腾讯锐驰200m我试了下楼主的配置，逆向优化了，奇怪，不知道问题在哪
我生成的是这样的配置：
kernel.pid_max = 65535
kernel.panic = 1
kernel.sysrq = 1
kernel.core_pattern = core_%e
kernel.printk = 3 4 1 3
kernel.numa_balancing = 0
kernel.sched_autogroup_enabled = 0

vm.swappiness = 10
vm.dirty_ratio = 10
vm.dirty_background_ratio = 5
vm.panic_on_oom = 1
vm.overcommit_memory = 1
vm.min_free_kbytes = 131072

net.core.default_qdisc = fq
net.core.netdev_max_backlog = 2000
net.core.rmem_max = 7662040
net.core.wmem_max = 3831020
net.core.rmem_default = 131072
net.core.wmem_default = 98304
net.core.somaxconn = 256
net.core.optmem_max = 65536

net.ipv4.tcp_fastopen = 3
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_fin_timeout = 10
net.ipv4.tcp_slow_start_after_idle = 0
net.ipv4.tcp_max_tw_buckets = 32768
net.ipv4.tcp_sack = 1
net.ipv4.tcp_fack = 0

net.ipv4.tcp_rmem = 16384 131072 7662040
net.ipv4.tcp_wmem = 16384 98304 3831020
net.ipv4.tcp_mtu_probing = 1
net.ipv4.tcp_congestion_control = bbr
net.ipv4.tcp_notsent_lowat = 4096
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_adv_win_scale = 2
net.ipv4.tcp_moderate_rcvbuf = 1
net.ipv4.tcp_no_metrics_save = 0
net.ipv4.tcp_init_cwnd = 10

net.ipv4.tcp_max_syn_backlog = 2048
net.ipv4.tcp_max_orphans = 65536
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 3
net.ipv4.tcp_abort_on_overflow = 0
net.ipv4.tcp_stdurg = 0
net.ipv4.tcp_rfc1337 = 0
net.ipv4.tcp_syncookies = 1

net.ipv4.ip_forward = 0
net.ipv4.ip_local_port_range = 1024 65535
net.ipv4.ip_no_pmtu_disc = 0
net.ipv4.route.gc_timeout = 100
net.ipv4.neigh.default.gc_stale_time = 120
net.ipv4.neigh.default.gc_thresh3 = 8192
net.ipv4.neigh.default.gc_thresh2 = 4096
net.ipv4.neigh.default.gc_thresh1 = 1024

net.ipv4.conf.all.accept_redirects = 0
net.ipv4.conf.default.accept_redirects = 0
net.ipv4.conf.all.secure_redirects = 0
net.ipv4.conf.default.secure_redirects = 0
net.ipv4.conf.all.accept_source_route = 0
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.conf.all.forwarding = 0
net.ipv4.conf.default.forwarding = 0

net.ipv4.icmp_echo_ignore_broadcasts = 1
net.ipv4.icmp_ignore_bogus_error_responses = 1
net.ipv4.conf.all.rp_filter = 1
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.all.arp_announce = 2
net.ipv4.conf.default.arp_announce = 2
net.ipv4.conf.all.arp_ignore = 1
net.ipv4.conf.default.arp_ignore = 1

@Naochen #44
其实具体公式我也不知道了，只是找了一些参数，结合 ai 根据自己微薄的数学知识引导 ai 进行拟合了，具体函数/公式现在画出来长什么样我也不知道了。至少有几个分段函数，还有一些 sigma 函数🤣
所以说叫炼丹

@iwil #46
调低内存，别超过 1g，调高延迟，乘以 1.2，不要让它无限占用

@verdx #48 大佬可以啊，有些许提速了，没太大区别，哈哈😃

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