netdev - Re: [PATCH net-next ] tcp: add new parameter tcp_inherit_buffsize to control the initial buffer size for new passive connetion

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Message-ID: <1494254787.7796.52.camel@edumazet-glaptop3.roam.corp.google.com>
Date:   Mon, 08 May 2017 07:46:27 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     Shan Wei <shanwei88@...il.com>
Cc:     netdev <netdev@...r.kernel.org>, David Miller <davem@...emloft.net>
Subject: Re: [PATCH net-next ] tcp: add new parameter tcp_inherit_buffsize
 to control the initial buffer size for new passive connetion

On Mon, 2017-05-08 at 15:49 +0800, Shan Wei wrote:

> Indeed,  HZ=250.  What is the problem about autotuning with HZ=250?
> 

You might look at recent patches.

commit 645f4c6f2ebd040688cc2a5f626ffc909e66ccf2
("tcp: switch rcv_rtt_est and rcvq_space to high resolution timestamps")

Thanks.