From 4953f5ac92dd0426381a56186ef51be72d86725c Mon Sep 17 00:00:00 2001
From: k3t <k3t@k3t.dev>
Date: Fri, 3 Jul 2026 19:50:29 -0600
Subject: [PATCH] add ecn support in sysctl

---
 modules/sys/sysctl.nix | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/modules/sys/sysctl.nix b/modules/sys/sysctl.nix
index 3851d55..61af9fe 100644
--- a/modules/sys/sysctl.nix
+++ b/modules/sys/sysctl.nix
@@ -2,9 +2,9 @@
   # Transparent Hugepages for better memory performance
   boot.kernel.sysctl = {
     "vm.max_map_count" = 1048576;  # For some games that need it
-    "vm.swappiness" = 200;  # Reduce swapping
+    "vm.swappiness" = 200; 
     # BBR congestion control
-    "net.core.default_qdisc" = "fq";
+    "net.core.default_qdisc" = "cake";
     "net.ipv4.tcp_congestion_control" = "bbr";
     "kernel.sysrq" = 1;  # Enable SysRq for emergency recovery
 
@@ -14,5 +14,9 @@
     "vm.dirty_ratio" = 10;  # Faster writes to disk
     "vm.dirty_background_ratio" = 5;  # Background write threshold
     "kernel.sched_autogroup_enabled" = 0;  # Better CPU scheduling for gaming
+
+    # ECN
+    "net.ipv4.tcp_ecn" = 1;
+    "net.ipv4.tcp_ecn_fallback" = 1;
    };
 }
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