From 147ad311358e7229781746748da5a40fb4d3c392 Mon Sep 17 00:00:00 2001
From: Matt Joiner <anacrolix@gmail.com>
Date: Tue, 1 Jul 2014 00:03:07 +1000
Subject: [PATCH] A CPU optimization to FillRequests when we know no more can
 be added

---
 download_strategies.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/download_strategies.go b/download_strategies.go
index 2cc7289e..8be1be40 100644
--- a/download_strategies.go
+++ b/download_strategies.go
@@ -16,6 +16,14 @@ type DefaultDownloadStrategy struct {
 }
 
 func (s *DefaultDownloadStrategy) FillRequests(t *torrent, c *connection) {
+	if c.Interested {
+		if c.PeerChoked {
+			return
+		}
+		if len(c.Requests) >= c.PeerMaxRequests {
+			return
+		}
+	}
 	th := s.heat[t]
 	addRequest := func(req request) (again bool) {
 		piece := t.Pieces[req.Index]