From 163a7f38c4fcff19bc680d5bdb624d82d5c4cde7 Mon Sep 17 00:00:00 2001
From: "Casper V. Kristensen" <casper@vkristensen.dk>
Date: Tue, 5 Mar 2024 22:36:28 +0100
Subject: [PATCH] tcp bbr

---
 modules/base/network.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/modules/base/network.nix b/modules/base/network.nix
index 012bdd8..66a1d4c 100644
--- a/modules/base/network.nix
+++ b/modules/base/network.nix
@@ -41,6 +41,12 @@
     '';
   };
 
+  # TCP BBR has significantly increased throughput and reduced latency. Note
+  # that the IPv4 setting controls both IPv4 and IPv6.
+  boot.kernel.sysctl = {
+    "net.ipv4.tcp_congestion_control" = "bbr";
+  };
+
   # vnStat keeps a log of hourly, daily and monthly network traffic
   services.vnstat.enable = true;
   environment.persistence."/nix/persist" = {