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optimize PEX to trigger earlier, and only start applying the load-balancing logic when it's needed

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Arvid Norberg
2013-08-04 05:09:20 +00:00
parent 11fd428c46
commit 27ea092b51
2 changed files with 15 additions and 4 deletions
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15
src/ut_pex.cpp
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@@ -86,7 +86,12 @@ namespace libtorrent { namespace
{
// randomize when we rebuild the pex message
// to evenly spread it out across all torrents
ut_pex_plugin(torrent& t): m_torrent(t), m_1_minute(random() % 60), m_peers_in_message(0) {}
// the more torrents we have, the longer we can
// delay the rebuilding
ut_pex_plugin(torrent& t)
: m_torrent(t)
, m_1_minute(random() % (std::max)(60 - int(m_torrent.session().get_torrents().size()), 1))
, m_peers_in_message(0) {}
virtual boost::shared_ptr<peer_plugin> new_connection(peer_connection* pc);
@@ -422,7 +427,13 @@ namespace libtorrent { namespace
// every minute we send a pex message
virtual void tick()
{
if (!m_message_index) return; // no handshake yet
// no handshake yet
if (!m_message_index) return;
// if there aren't any peers other than this one,
// there no need to start the pex logic yet
if (m_first_time && m_torrent.num_peers() <= 1) return;
if (++m_1_minute <= 60) return;
if (m_first_time)