From: David Miller <davem@davemloft.net>
To: eric.dumazet@gmail.com
Cc: yangyingliang@huawei.com, netdev@vger.kernel.org,
dingtianhong@huawei.com
Subject: Re: [PATCH RFC] net: decrease the length of backlog queue immediately after it's detached from sk
Date: Fri, 08 Apr 2016 12:53:36 -0400 (EDT) [thread overview]
Message-ID: <20160408.125336.1805413467131988444.davem@davemloft.net> (raw)
In-Reply-To: <1460126665.6473.437.camel@edumazet-glaptop3.roam.corp.google.com>
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Fri, 08 Apr 2016 07:44:25 -0700
> On Fri, 2016-04-08 at 19:18 +0800, Yang Yingliang wrote:
>
>> I expand tcp_adv_win_scale and tcp_rmem. It has no effect.
>
> Try :
>
> echo -2 >/proc/sys/net/ipv4/tcp_adv_win_scale
>
> And restart your flows.
I'm honestly beginning to suspect a bug in their driver and how they
handle skb->truesize.
Yang, until you show us the driver you are using and how is handles
receive packets, we are largely in the dark about a major component
of this issue and that is entirely unfair to us.
next prev parent reply other threads:[~2016-04-08 16:53 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-30 5:16 [PATCH RFC] net: decrease the length of backlog queue immediately after it's detached from sk Yang Yingliang
2016-03-30 5:25 ` Eric Dumazet
2016-03-30 5:34 ` Eric Dumazet
2016-03-30 5:56 ` Yang Yingliang
2016-03-30 13:47 ` Eric Dumazet
2016-04-07 5:59 ` Yang Yingliang
2016-04-07 10:21 ` Eric Dumazet
2016-04-07 14:51 ` Eric Dumazet
2016-04-08 11:18 ` Yang Yingliang
2016-04-08 14:44 ` Eric Dumazet
2016-04-08 16:53 ` David Miller [this message]
2016-04-08 17:04 ` Eric Dumazet
2016-04-11 14:42 ` Yang Yingliang
2016-04-11 11:57 ` Yang Yingliang
2016-04-11 12:13 ` Eric Dumazet
2016-04-12 2:59 ` Yang Yingliang
2016-04-12 12:31 ` Yang Yingliang
2016-04-13 2:42 ` Eric Dumazet
2016-03-30 5:38 ` Yang Yingliang
2016-03-30 12:56 ` Sergei Shtylyov
2016-04-07 6:01 ` Yang Yingliang
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