From a114b12027fbd82484833a7a2ded35273de39e3b Mon Sep 17 00:00:00 2001
From: Alan Pearce
Date: Mon, 24 Sep 2018 16:08:09 +0200
Subject: bare-metal: tweak TCP congestion control

---
 modules/hardware/bare-metal.nix | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'modules/hardware')

diff --git a/modules/hardware/bare-metal.nix b/modules/hardware/bare-metal.nix
index eacc9f40..9d79fb50 100644
--- a/modules/hardware/bare-metal.nix
+++ b/modules/hardware/bare-metal.nix
@@ -11,6 +11,11 @@
 
   hardware.cpu.intel.updateMicrocode = true;
 
+  boot.kernel.sysctl = {
+    "net.ipv4.tcp_allowed_congestion_control" = "illinois reno lp";
+    "net.ipv4.tcp_congestion_control" = "illinois";
+  };
+
   boot.tmpOnTmpfs = true;
 
   fileSystems."/".options = [ "noatime" "nodiratime" ];
-- 
cgit 1.4.1