TCP 利器 tcp-brutal
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- bbr config
1
2cat > /etc/sysctl.conf << EOF
3fs.file-max = 6815744
4net.ipv4.tcp_no_metrics_save=1
5net.ipv4.tcp_ecn=0
6net.ipv4.tcp_frto=0
7net.ipv4.tcp_mtu_probing=0
8net.ipv4.tcp_rfc1337=0
9net.ipv4.tcp_sack=1
10net.ipv4.tcp_fack=1
11net.ipv4.tcp_window_scaling=1
12net.ipv4.tcp_adv_win_scale=1
13net.ipv4.tcp_moderate_rcvbuf=1
14net.core.rmem_max=33554432
15net.core.wmem_max=33554432
16net.ipv4.tcp_rmem=4096 87380 33554432
17net.ipv4.tcp_wmem=4096 16384 33554432
18net.ipv4.udp_rmem_min=8192
19net.ipv4.udp_wmem_min=8192
20net.ipv4.ip_forward=1
21net.ipv4.conf.all.route_localnet=1
22net.ipv4.conf.all.forwarding=1
23net.ipv4.conf.default.forwarding=1
24net.core.default_qdisc=fq
25net.ipv4.tcp_congestion_control=bbr
26net.ipv6.conf.all.forwarding=1
27net.ipv6.conf.default.forwarding=1
28EOF
29sysctl -p && sysctl --system
30
31
net.ipv4.tcp_congestion_control=bbr or net.ipv4.tcp_congestion_control=cubic or net.ipv4.tcp_congestion_control=brutal
项目地址： https://github.com/apernet/tcp-brutal
论坛帖子： https://www.nodeseek.com/post-505403-1
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1
2#define INIT_PACING_RATE 75000000 // 500 Mbps+
3#define INIT_CWND_GAIN 40
4
重新编译 tcp-brutal
1
2root@racknerd-6bf1e7b:~/tcp-brutal# make
3make -C /lib/modules/6.8.0-87-generic/build M=/root/tcp-brutal modules
4make[1]: Entering directory '/usr/src/linux-headers-6.8.0-87-generic'
5warning: the compiler differs from the one used to build the kernel
6The kernel was built by: x86_64-linux-gnu-gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
7You are using: gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
8make[1]: Leaving directory '/usr/src/linux-headers-6.8.0-87-generic'
9
10
11root@racknerd-6bf1e7b:~/tcp-brutal# insmod brutal.ko
12
13root@racknerd-6bf1e7b:~/tcp-brutal# lsmod |grep brutal
14brutal 16384 56
15
16sysctl net.ipv4.tcp_congestion_control
17sysctl -w net.ipv4.tcp_congestion_control=brutal #设置
18sysctl -w net.ipv4.tcp_no_metrics_save=1 #切流量
19
总体感受没有那么长时间的缓冲了，可以瞬间提高速度到最大速度，秒开8K youtube视频。