linux-kernel - Re: TCP reaching to maximum throughput after a long time

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Date:	Tue, 12 Apr 2016 20:32:29 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Yuchung Cheng <ycheng@...gle.com>
Cc:	Ben Greear <greearb@...delatech.com>,
	"Machani, Yaniv" <yanivma@...com>, netdev <netdev@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Neal Cardwell <ncardwell@...gle.com>,
	Nandita Dukkipati <nanditad@...gle.com>,
	open list <linux-kernel@...r.kernel.org>,
	"Kama, Meirav" <meiravk@...com>
Subject: Re: TCP reaching to maximum throughput after a long time

On Tue, 2016-04-12 at 20:08 -0700, Yuchung Cheng wrote:

> based on the prev thread I propose we disable hystart ack-train. It is
> brittle under various circumstances. We've disabled that at Google for
> years.

Right, but because we also use sch_fq packet scheduler and pacing ;)