From: Matt Joiner <anacrolix@gmail.com>
Date: Tue, 22 Oct 2013 07:02:52 +0000 (+1100)
Subject: Set pieceByBytesPendingSlice capacity in advance to reduce memory pressure
X-Git-Tag: v1.0.0~1791
X-Git-Url: http://www.git.stargrave.org/?a=commitdiff_plain;h=8f0b076f65b07f856fd31693c80ac6a77f2a2fe0;p=btrtrc.git

Set pieceByBytesPendingSlice capacity in advance to reduce memory pressure
---

diff --git a/client.go b/client.go
index 4a7ee817..9dcd3eee 100644
--- a/client.go
+++ b/client.go
@@ -250,7 +250,10 @@ func (me pieceByBytesPendingSlice) Swap(i, j int) {
 }
 
 func (t *Torrent) piecesByPendingBytesDesc() (indices []peer_protocol.Integer) {
-	slice := pieceByBytesPendingSlice{}
+	slice := pieceByBytesPendingSlice{
+		Pending: make([]peer_protocol.Integer, 0, len(t.Pieces)),
+		Indices: make([]peer_protocol.Integer, 0, len(t.Pieces)),
+	}
 	for i := range t.Pieces {
 		slice.Pending = append(slice.Pending, t.PieceNumPendingBytes(peer_protocol.Integer(i)))
 		slice.Indices = append(slice.Indices, peer_protocol.Integer(i))