DPDK usage discussions
 help / color / mirror / Atom feed
From: "Đỗ Hoàng" <mon120494@gmail.com>
To: users@dpdk.org
Subject: [dpdk-users] Performance issue with 82546EB NICs
Date: Fri, 19 Aug 2016 08:53:12 +0800	[thread overview]
Message-ID: <CAHzS=K9yU2e_EZAR3ZyH0XvP0LpQBua=qDYBZSm=j3Hy8LA-SQ@mail.gmail.com> (raw)

Hi all,

I am using a dual-port Intel 82546EB to run the simple l2fwd application
(forward 64byte packets).

The result is terrible. My packet generator generates and sends about
320Mb/s, but nearly a half of them are dropped, and only about 160Mb of
packets are forwarded every sec.

I have also tried to run dpdk-pktgen with this NIC and It can only generate
and send about 150Mb/s.

My NIC link speed is 1000Mb/s. I am wondering why its performance is so
slow like this.

Please help me. Any ideas/advices are appreciated.

Thanks.

             reply	other threads:[~2016-08-19  0:53 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-19  0:53 Đỗ Hoàng [this message]
2016-08-19 18:06 ` Stephen Hemminger

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='CAHzS=K9yU2e_EZAR3ZyH0XvP0LpQBua=qDYBZSm=j3Hy8LA-SQ@mail.gmail.com' \
    --to=mon120494@gmail.com \
    --cc=users@dpdk.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).