45 lines
1.1 KiB
Bash
45 lines
1.1 KiB
Bash
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#!/bin/bash
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# BBR Blast Smooth - Debian 12/13 暴力平滑版
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# 兼顾突发性能与稳定性 🚀
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set -e
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# 检查系统版本
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if ! grep -q "Debian GNU/Linux 1[23]" /etc/os-release; then
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echo "❌ 本脚本仅支持 Debian 12/13"
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exit 1
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fi
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echo "==> 启用 BBR v1 (更稳定)"
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modprobe tcp_bbr 2>/dev/null || true
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echo "tcp_bbr" > /etc/modules-load.d/bbr.conf
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echo "==> 写入 BBR 暴力平滑参数 (永久)"
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cat >> /etc/sysctl.conf <<SYSCTL
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# === BBR Blast Smooth (平滑暴力版) ===
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net.core.default_qdisc=fq
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net.ipv4.tcp_congestion_control=bbr
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# 大缓冲区 (64MB) - 足够跑满 1G，不至于丢包卡顿
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net.core.rmem_max=67108864
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net.core.wmem_max=67108864
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net.ipv4.tcp_rmem=4096 87380 67108864
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net.ipv4.tcp_wmem=4096 65536 67108864
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# 短连接 & 延迟优化
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net.ipv4.tcp_fin_timeout=8
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net.ipv4.tcp_tw_reuse=1
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net.ipv4.tcp_window_scaling=1
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net.ipv4.tcp_timestamps=1
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net.ipv4.tcp_sack=1
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# 避免保存历史 RTT，保持突发灵活
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net.ipv4.tcp_no_metrics_save=1
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SYSCTL
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echo "==> 应用参数"
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sysctl -p
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echo "✅ 系统已进入 BBR Blast Smooth 模式 (平滑暴力版)"
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