Adjust some config defaults

diff --git a/config.go b/config.go
index ff222b325e828e7d4093e5ed0cfc65034eea4d75..860f6cd19a6d96d2317b9e3d4637e61d31834964 100644 (file)
--- a/config.go
+++ b/config.go
@@ -130,16 +130,17 @@ func (cfg *Config) setDefaults() {
                cfg.MinDialTimeout = 5 * time.Second
        }
        if cfg.EstablishedConnsPerTorrent == 0 {
-               cfg.EstablishedConnsPerTorrent = 80
+               cfg.EstablishedConnsPerTorrent = 50
        }
        if cfg.HalfOpenConnsPerTorrent == 0 {
-               cfg.HalfOpenConnsPerTorrent = 80
+               cfg.HalfOpenConnsPerTorrent = (cfg.EstablishedConnsPerTorrent + 1) / 2
        }
        if cfg.TorrentPeersHighWater == 0 {
+               // Memory and freshness are the concern here.
                cfg.TorrentPeersHighWater = 500
        }
        if cfg.TorrentPeersLowWater == 0 {
-               cfg.TorrentPeersLowWater = 50
+               cfg.TorrentPeersLowWater = 2 * cfg.HalfOpenConnsPerTorrent
        }
        if cfg.HandshakesTimeout == 0 {
                cfg.HandshakesTimeout = 20 * time.Second