From: Ding Tianhong <dingtianhong@huawei.com>
To: "David S. Miller" <davem@davemloft.net>, <kuznet@ms2.inr.ac.r>,
"James Morris" <jmorris@namei.org>, <yoshfuji@linux-ipv6.org>,
<kaber@trash.net>, Netdev <netdev@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Ask some help for the netstat Send-Q
Date: Wed, 17 Feb 2016 18:34:07 +0800 [thread overview]
Message-ID: <56C44C9F.8090504@huawei.com> (raw)
Hi David S. Miller and maintainers:
I use the 4.1.16 kernel to build my system and use the iperf to test the netstat, it looks very strange that the client shows:
netstat -at | grep 10.175.112.105
tcp 0 0 10.175.112.191:ssh 10.175.112.105:58400 ESTABLISHED
tcp 0 0 10.175.112.191:33230 10.175.112.105:5001 TIME_WAIT
tcp 0 4202096 10.175.112.191:33231 10.175.112.105:5001 ESTABLISHED
tcp 0 0 10.175.112.191:ssh 10.175.112.105:58335 ESTABLISHED
and the speed is:
[ 3] 0.0-300.0 sec 32.5 GBytes 929 Mbits/sec
It looks like that the speed is fine, But I don't know why the Send-Q has so many buffers,
the tcp_wmem is big enough and I couldn't found any difference, did I miss something or
is there something wrong for the TCP config?
Thanks for any suggestion.
Ding
reply other threads:[~2016-02-17 10:34 UTC|newest]
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