From: Dan Siemon <dan@coverfire.com>
To: xdp-newbies@vger.kernel.org
Subject: AF_XDP (i40e) behavior change in 5.11?
Date: Tue, 23 Mar 2021 22:30:38 -0400 [thread overview]
Message-ID: <35a931df0e2cb4bf1fd23ecc15895419c7ca0e3c.camel@coverfire.com> (raw)
./xsk_fwd -i ens1f0 -q 2 -i ens1f1 -q 2 -c 5 -i ens1f0 -q 3 -i ens1f1 -
q 3 -c 6
On 5.10, the cores (2,3) assigned interrupts for the queues (2,3) are
idle when there is no traffic.
On 5.11, the cores immediately go to 100% system time when the program
starts (as viewed in htop). There is no network traffic.
Intel 710/i40e.
I tried this with xsk_fwd built from 5.10 and 5.11 trees with the same
result.
Is this behavior change expected?
next reply other threads:[~2021-03-24 2:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-24 2:30 Dan Siemon [this message]
2021-03-24 10:00 ` AF_XDP (i40e) behavior change in 5.11? Magnus Karlsson
2021-03-25 22:17 ` Dan Siemon
2021-03-26 7:37 ` Magnus Karlsson
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=35a931df0e2cb4bf1fd23ecc15895419c7ca0e3c.camel@coverfire.com \
--to=dan@coverfire.com \
--cc=xdp-newbies@vger.kernel.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.