From 977ac07fed14848c0dcbf0e17da1f5ea2778d600 Mon Sep 17 00:00:00 2001
From: happysalada <raphael@megzari.com>
Date: Tue, 31 Aug 2021 09:17:57 +0900
Subject: [PATCH] ipfs: increase UDP buffer size

---
 nixos/modules/services/network-filesystems/ipfs.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/nixos/modules/services/network-filesystems/ipfs.nix b/nixos/modules/services/network-filesystems/ipfs.nix
index c64fd07db8c..57eae46b17a 100644
--- a/nixos/modules/services/network-filesystems/ipfs.nix
+++ b/nixos/modules/services/network-filesystems/ipfs.nix
@@ -192,6 +192,9 @@ in
     environment.systemPackages = [ cfg.package ];
     environment.variables.IPFS_PATH = cfg.dataDir;
 
+    # https://github.com/lucas-clemente/quic-go/wiki/UDP-Receive-Buffer-Size
+    boot.kernel.sysctl."net.core.rmem_max" = mkDefault 2500000;
+
     programs.fuse = mkIf cfg.autoMount {
       userAllowOther = true;
     };