From: David Miller <davem@davemloft.net>
To: ycheng@google.com
Cc: ilpo.jarvinen@helsinki.fi, ncardwell@google.com,
nanditad@google.com, netdev@vger.kernel.org
Subject: Re: [PATCH v4 3/3] tcp: early retransmit: delayed fast retransmit
Date: Wed, 02 May 2012 20:56:37 -0400 (EDT) [thread overview]
Message-ID: <20120502.205637.19625325390404925.davem@davemloft.net> (raw)
In-Reply-To: <1336001404-21879-3-git-send-email-ycheng@google.com>
From: Yuchung Cheng <ycheng@google.com>
Date: Wed, 2 May 2012 16:30:04 -0700
> Implementing the advanced early retransmit (sysctl_tcp_early_retrans==2).
> Delays the fast retransmit by an interval of RTT/4. We borrow the
> RTO timer to implement the delay. If we receive another ACK or send
> a new packet, the timer is cancelled and restored to original RTO
> value offset by time elapsed. When the delayed-ER timer fires,
> we enter fast recovery and perform fast retransmit.
>
> Signed-off-by: Yuchung Cheng <ycheng@google.com>
Applied.
next prev parent reply other threads:[~2012-05-03 0:56 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-02 23:30 [PATCH v4 1/3] tcp: early retransmit: tcp_enter_recovery() Yuchung Cheng
2012-05-02 23:30 ` [PATCH v4 2/3] tcp: early retransmit Yuchung Cheng
2012-05-03 0:14 ` Neal Cardwell
2012-05-03 0:56 ` David Miller
2012-05-02 23:30 ` [PATCH v4 3/3] tcp: early retransmit: delayed fast retransmit Yuchung Cheng
2012-05-03 0:15 ` Neal Cardwell
2012-05-03 0:56 ` David Miller [this message]
2012-05-03 0:13 ` [PATCH v4 1/3] tcp: early retransmit: tcp_enter_recovery() Neal Cardwell
2012-05-03 1:56 ` Eric Dumazet
2012-05-03 0:56 ` David Miller
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