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tighten up the cwnd saturating timeout rule for allowing increasing cwnd

This commit is contained in:
Arvid Norberg 2012-06-25 06:05:28 +00:00
parent 6be3357759
commit dad544dfd0
1 changed files with 2 additions and 1 deletions
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3
src/utp_stream.cpp
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@ -2816,7 +2816,7 @@ void utp_socket_impl::do_ledbat(int acked_bytes, int delay, int in_flight, ptime
scaled_gain = INT64_MAX - m_cwnd - 1;
if (scaled_gain > 0 && !m_cwnd_full
&& m_last_cwnd_hit + milliseconds((std::max)(m_rtt.mean(), 500)) < now)
&& m_last_cwnd_hit + milliseconds(50) < now)
{
UTP_LOGV("%8p: last_cwnd_hit:%d full_cwnd:%d scaled_gain -> 0, slow_start -> 0\n", this
, total_milliseconds(now - m_last_cwnd_hit), int(m_cwnd_full));
@ -2852,6 +2852,7 @@ void utp_socket_impl::do_ledbat(int acked_bytes, int delay, int in_flight, ptime
{
UTP_LOGV("%8p: mtu:%d in_flight:%d adv_wnd:%d cwnd:%d acked_bytes:%d cwnd_full -> 0\n"
, this, m_mtu, in_flight, int(m_adv_wnd), int(m_cwnd >> 16), acked_bytes);
if (m_cwnd_full) m_last_cwnd_hit = time_now_hires();
m_cwnd_full = false;
}