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another attempt at optimizing piece picker

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This commit is contained in:
Arvid Norberg
2011-08-14 23:16:12 +00:00
parent 5e92858360
commit 88441e4fdc
4 changed files with 13 additions and 8 deletions
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8
src/piece_picker.cpp
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@@ -1358,10 +1358,14 @@ namespace libtorrent
void piece_picker::pick_pieces(bitfield const& pieces
, std::vector<piece_block>& interesting_blocks, int num_blocks
, int prefer_whole_pieces, void* peer, piece_state_t speed
, int options, std::vector<int> const& suggested_pieces) const
, int options, std::vector<int> const& suggested_pieces
, int num_peers) const
{
// prevent the number of partial pieces to grow indefinitely
if (m_downloads.size() > 20) options |= prioritize_partials;
// make this scale by the number of peers we have. For large
// scale clients, we would have more peers, and allow a higher
// threshold for the number of partials
if (m_downloads.size() > num_peers * 3 / 2) options |= prioritize_partials;
if (options & ignore_whole_pieces) prefer_whole_pieces = 0;