Message-ID: <1460518349.32504.8.camel@edumazet-glaptop3.roam.corp.google.com>
Subject: Re: TCP reaching to maximum throughput after a long time
From: Eric Dumazet <eric.dumazet@gmail.com>
To: Yuchung Cheng <ycheng@google.com>
Cc: Ben Greear <greearb@candelatech.com>, "Machani, Yaniv" <yanivma@ti.com>,
        netdev <netdev@vger.kernel.org>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Neal Cardwell <ncardwell@google.com>,
        Nandita Dukkipati <nanditad@google.com>,
        open list <linux-kernel@vger.kernel.org>,
        "Kama, Meirav" <meiravk@ti.com>
Date: Tue, 12 Apr 2016 20:32:29 -0700
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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 ;)