From 675d3aefd3f569bf4be1c839b1d1ddc58581c7e2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marcel=20M=C3=A4rtens?= <marcel.cochem@googlemail.com>
Date: Sat, 28 May 2022 18:38:28 +0200
Subject: [PATCH] add some conservative recv and send buffer size, to handle
 slow acks

---
 network/src/channel.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/network/src/channel.rs b/network/src/channel.rs
index 51a294bbee..97fe17b315 100644
--- a/network/src/channel.rs
+++ b/network/src/channel.rs
@@ -101,6 +101,13 @@ impl Protocols {
             socket2_socket.set_only_v6(true)?
         }
         socket2_socket.set_nonblocking(true)?; // Needed by Tokio
+        // Increase Buffers size to 256 KiB and 128 KiB
+        if let Err(e) = socket2_socket.set_send_buffer_size(256 * 1024) {
+            trace!(?e, "couldn't specify send buffer size");
+        }
+        if let Err(e) = socket2_socket.set_recv_buffer_size(128 * 1024) {
+            trace!(?e, "couldn't specify recv buffer size");
+        }
         // See https://docs.rs/tokio/latest/tokio/net/struct.TcpSocket.html
         #[cfg(not(windows))]
         socket2_socket.set_reuse_address(true)?;