From: Matt Joiner <anacrolix@gmail.com>
Date: Sun, 7 Dec 2014 03:18:17 +0000 (-0600)
Subject: Make some overlap of piece priorities
X-Git-Tag: v1.0.0~1411
X-Git-Url: http://www.git.stargrave.org/?a=commitdiff_plain;h=a4dc96bb12330691acc669d2ed80db615374065f;p=btrtrc.git

Make some overlap of piece priorities

The goal is to reduce duplicating requests on higher priority pieces.
---

diff --git a/connection.go b/connection.go
index f8855aee..05b037ab 100644
--- a/connection.go
+++ b/connection.go
@@ -98,11 +98,11 @@ func (cn *connection) pendPiece(piece int, priority piecePriority) {
 	// favouring of higher priority pieces.
 	switch priority {
 	case piecePriorityReadahead:
-		key -= len(cn.piecePriorities)
+		key -= len(cn.piecePriorities) / 3
 	case piecePriorityNext:
-		key -= 2 * len(cn.piecePriorities)
+		key -= len(cn.piecePriorities) / 2
 	case piecePriorityNow:
-		key -= 3 * len(cn.piecePriorities)
+		key -= len(cn.piecePriorities)
 	}
 	cn.pieceRequestOrder.SetPiece(piece, key)
 }