From cd49f75cb9ca83065609d02d9813acf31e24b4af Mon Sep 17 00:00:00 2001
From: Matt Joiner <anacrolix@gmail.com>
Date: Sat, 18 Sep 2021 21:01:06 +1000
Subject: [PATCH] When updating requests, only tickle writer if there are no
 requests pending

Just a quick attempt to reduce load for now. There'll be a much better way to do this.
---
 peerconn.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/peerconn.go b/peerconn.go
index 4eca560e..452166ac 100644
--- a/peerconn.go
+++ b/peerconn.go
@@ -653,6 +653,9 @@ func (cn *PeerConn) postBitfield() {
 }
 
 func (cn *PeerConn) updateRequests() {
+	if len(cn.actualRequestState.Requests) != 0 {
+		return
+	}
 	cn.tickleWriter()
 }