From: Yi Yang =?unknown-8bit?b?5p2o77+9RC3kupHmnI3liqHpm4blm6I=?= <yangyi01@inspur.com>
To: intel-wired-lan@osuosl.org
Subject: [Intel-wired-lan] bad iperf3 tcp performance of Intel 10G NIC when MTU is 9000
Date: Tue, 4 Feb 2020 15:34:16 +0000 [thread overview]
Message-ID: <6bc9d97b27a24cf79edadedf502caf06@inspur.com> (raw)
Hi, all
We find a very weird issue on Intel 10G NIC, iperf3 tcp performance is good
when MTU is 1500, but it is about one third of the former when MTU is 9000,
anybody knows why it is so, is any solution to it available?
The below is our kernel and ixgbe deriver information:
Ubuntu 16.04 and kernel is updated to 4.15.0-36-generic x86_64
Ixgbe driver version: 5.1.0-k
Firmware version: 0x61c10001
BTW, tso is on.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 3600 bytes
Desc: not available
URL: <http://lists.osuosl.org/pipermail/intel-wired-lan/attachments/20200204/9d1b4744/attachment.p7s>
next reply other threads:[~2020-02-04 15:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-04 15:34 Yi Yang =?unknown-8bit?b?5p2o77+9RC3kupHmnI3liqHpm4blm6I=?= [this message]
2020-02-06 18:18 ` [Intel-wired-lan] bad iperf3 tcp performance of Intel 10G NIC when MTU is 9000 Alexander Duyck
2020-02-07 0:13 ` [Intel-wired-lan] 答复: " Yi Yang =?unknown-8bit?b?5p2o54eaLeS6keacjeWKoembhuWbog==?=
2020-02-07 1:05 ` [Intel-wired-lan] " Alexander Duyck
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=6bc9d97b27a24cf79edadedf502caf06@inspur.com \
--to=yangyi01@inspur.com \
--cc=intel-wired-lan@osuosl.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.