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updated IP overhead calculation

This commit is contained in:
Arvid Norberg 2008-05-12 08:22:56 +00:00
parent 574211055c
commit aa8aee6109
1 changed files with 4 additions and 4 deletions
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8
include/libtorrent/stat.hpp
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@ -150,14 +150,14 @@ namespace libtorrent
// IP + TCP headers are 40 bytes per MTU (1460)
// bytes of payload, but at least 40 bytes
m_stat[upload_ip_protocol].add((std::max)(uploaded / 1460, 40));
m_stat[download_ip_protocol].add((std::max)(downloaded / 1460, 40));
m_stat[upload_ip_protocol].add((std::max)(uploaded / 1460, uploaded>0?40:0));
m_stat[download_ip_protocol].add((std::max)(downloaded / 1460, downloaded>0?40:0));
// also account for ACK traffic. That adds to the transfers
// in the opposite direction. Even on connections with symmetric
// transfer rates, it seems to add a penalty.
m_stat[upload_ip_protocol].add((std::max)(downloaded / 20, 40));
m_stat[download_ip_protocol].add((std::max)(uploaded / 20, 40));
m_stat[upload_ip_protocol].add((std::max)(downloaded * 40 / 1460, downloaded>0?40:0));
m_stat[download_ip_protocol].add((std::max)(uploaded * 40 / 1460, uploaded>0?40:0));
}
int upload_ip_overhead() const { return m_stat[upload_ip_protocol].counter(); }