netdev - Re: [PATCH net-next] tcp: start receiver buffer autotuning sooner

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Message-Id: <20181001.154600.398152617755232823.davem@davemloft.net>
Date:   Mon, 01 Oct 2018 15:46:00 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     ycheng@...gle.com
Cc:     edumazet@...gle.com, netdev@...r.kernel.org, ncardwell@...gle.com,
        weiwan@...gle.com, soheil@...gle.com
Subject: Re: [PATCH net-next] tcp: start receiver buffer autotuning sooner

From: Yuchung Cheng <ycheng@...gle.com>
Date: Mon,  1 Oct 2018 15:42:32 -0700

> Previously receiver buffer auto-tuning starts after receiving
> one advertised window amount of data. After the initial receiver
> buffer was raised by patch a337531b942b ("tcp: up initial rmem to
> 128KB and SYN rwin to around 64KB"), the reciver buffer may take
> too long to start raising. To address this issue, this patch lowers
> the initial bytes expected to receive roughly the expected sender's
> initial window.
> 
> Fixes: a337531b942b ("tcp: up initial rmem to 128KB and SYN rwin to around 64KB")
> Signed-off-by: Yuchung Cheng <ycheng@...gle.com>
> Signed-off-by: Wei Wang <weiwan@...gle.com>
> Signed-off-by: Neal Cardwell <ncardwell@...gle.com>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Reviewed-by: Soheil Hassas Yeganeh <soheil@...gle.com>

Applied, sorry for applying v1 instead of v2 the the rmem increasing patch.
:-/