lotspeed zeta-tcp

supported kernel

• kernel_version:
  • "6.18.2" # LTS
  • "6.12.8"
  • "6.11.9"
  • "5.15.99"

branch explanation

• zeta-tcp: lotspeed zeta-tcp 版本(Appex Networking zeta-tcp)
• auto install

bash <(curl -sSL https://raw.githubusercontent.com/qiuxiuya/lotspeed/zeta-tcp/install.sh)
#with Xanmod intstall
#bash <(curl -sSL https://raw.githubusercontent.com/qiuxiuya/magicTCP/refs/heads/main/lotspeed.sh)

• manual compile and load

# 下载代码/编译

git clone https://github.com/qiuxiuya/lotspeed.git 

cd lotspeed && make

# 加载模块
sudo insmod lotspeed.ko

# 设置为当前拥塞控制算法
sudo sysctl -w net.ipv4.tcp_congestion_control=lotspeed
sudo sysctl -w net.ipv4.tcp_no_metrics_save=1

# 查看是否生效
sysctl net.ipv4.tcp_congestion_control

# 查看日志
dmesg -w

• Configuration directory

/sys/module/lotspeed/parameters

参数说明

参数文件目录：/sys/module/lotspeed/parameters

速率相关参数单位都是 Bytes/s。
例如：125000000 ≈ 125 MB/s ≈ 1000 Mbps。

参数	默认值	用户能理解的作用	建议 / 注意
lotserver_rate	125000000	整个算法的单连接最高目标速率，不会往上冲破这个上限。	一般填你机器真实带宽上限附近。1Gbps 大约就是125000000(125MB/s)。
lotserver_start_rate	125000000	新连接刚开始时的起跑速度。后面会根据链路情况自己往上爬或往下收。	当前源码默认值和lotserver_rate 一样。也就是说，源码默认并不是“低速起步”。如果你想更温和地启动，要手动调低它。
lotserver_gain	20	控制窗口放大的积极程度，数值越大，跑得越猛。	实际按值 ÷ 10 理解，20 就是约 2.0x。太大更容易抖动。
lotserver_min_cwnd	16	最小拥塞窗口，保证窗口不会缩得太小。	单位是包。最小会被强制修正到不低于4。
lotserver_max_cwnd	15000	最大拥塞窗口，防止窗口无限变大。	单位是包。最大会被强制限制到不高于100000。
lotserver_beta	717	遇到明显拥塞后，窗口要保留多少。	计算方式约等于“保留70% 左右”。范围会被限制在 512 ~ 1024。越小抢的越凶，建议大于620否则会导致CPU飙高。
lotserver_turbo	false	激进模式。开了以后，启动和扩张会更猛。	适合追求速度，不适合求稳。和lotserver_safe_mode=0 一起用时最激进。
lotserver_safe_mode	true	安全保护开关。开着时，会更积极处理高延迟、高丢包，也会限制过大的窗口。	建议默认开。关掉后更容易冲速度，但也更容易抖、丢包、延迟变高。
lotserver_verbose	false	是否把状态切换、历史命中这些信息打印到内核日志。	--

补充说明

• lotserver_start_rate 是初始目标速率；lotserver_rate 是最终上限。
• 当前逻辑会在链路健康时逐步上调目标速率，遇到明显丢包或延迟变差时再回收，不是固定死速率。
• lotserver_safe_mode 打开时，代码里还有两个保护：超过 15% 的丢包率会更强地收缩，窗口也会被限制在大约 BDP 的 3 倍以内。
• 参数可直接写到 /sys/module/lotspeed/parameters 下面对应文件里，也可以用 echo 值 > 参数文件 的方式修改。

推荐参数

带宽	模式	可直接复制命令
500Mbps	稳定	lotspeed set lotserver_rate 62500000 lotspeed set lotserver_start_rate 50000000 lotspeed set lotserver_gain 22 lotspeed set lotserver_min_cwnd 16 lotspeed set lotserver_max_cwnd 18000 lotspeed set lotserver_beta 717 lotspeed set lotserver_turbo 1 lotspeed set lotserver_safe_mode 1
	激进	lotspeed set lotserver_rate 62500000 lotspeed set lotserver_start_rate 62500000 lotspeed set lotserver_gain 26 lotspeed set lotserver_min_cwnd 20 lotspeed set lotserver_max_cwnd 25000 lotspeed set lotserver_beta 640 lotspeed set lotserver_turbo 1 lotspeed set lotserver_safe_mode 1
1Gbps	稳定	lotspeed set lotserver_rate 125000000 lotspeed set lotserver_start_rate 100000000 lotspeed set lotserver_gain 24 lotspeed set lotserver_min_cwnd 20 lotspeed set lotserver_max_cwnd 26000 lotspeed set lotserver_beta 717 lotspeed set lotserver_turbo 1 lotspeed set lotserver_safe_mode 1
	激进	lotspeed set lotserver_rate 125000000 lotspeed set lotserver_start_rate 125000000 lotspeed set lotserver_gain 28 lotspeed set lotserver_min_cwnd 24 lotspeed set lotserver_max_cwnd 36000 lotspeed set lotserver_beta 640 lotspeed set lotserver_turbo 1 lotspeed set lotserver_safe_mode 1
2Gbps	稳定	lotspeed set lotserver_rate 250000000 lotspeed set lotserver_start_rate 200000000 lotspeed set lotserver_gain 26 lotspeed set lotserver_min_cwnd 24 lotspeed set lotserver_max_cwnd 42000 lotspeed set lotserver_beta 700 lotspeed set lotserver_turbo 1 lotspeed set lotserver_safe_mode 1
	激进	lotspeed set lotserver_rate 250000000 lotspeed set lotserver_start_rate 250000000 lotspeed set lotserver_gain 30 lotspeed set lotserver_min_cwnd 32 lotspeed set lotserver_max_cwnd 60000 lotspeed set lotserver_beta 640 lotspeed set lotserver_turbo 1 lotspeed set lotserver_safe_mode 1
5Gbps	稳定	lotspeed set lotserver_rate 625000000 lotspeed set lotserver_start_rate 500000000 lotspeed set lotserver_gain 28 lotspeed set lotserver_min_cwnd 32 lotspeed set lotserver_max_cwnd 70000 lotspeed set lotserver_beta 704 lotspeed set lotserver_turbo 1 lotspeed set lotserver_safe_mode 1
	激进	lotspeed set lotserver_rate 625000000 lotspeed set lotserver_start_rate 625000000 lotspeed set lotserver_gain 30 lotspeed set lotserver_min_cwnd 48 lotspeed set lotserver_max_cwnd 90000 lotspeed set lotserver_beta 640 lotspeed set lotserver_turbo 1 lotspeed set lotserver_safe_mode 1