netdev - Re: [PATCH net-next 3/5] selftests: drv-net: rss_ctx: test queue changes vs user RSS config

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240708091701.4cb6c5c0@kernel.org>
Date: Mon, 8 Jul 2024 09:17:01 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Willem de Bruijn <willemdebruijn.kernel@...il.com>
Cc: davem@...emloft.net, netdev@...r.kernel.org, edumazet@...gle.com,
 pabeni@...hat.com, petrm@...dia.com, przemyslaw.kitszel@...el.com,
 ecree.xilinx@...il.com
Subject: Re: [PATCH net-next 3/5] selftests: drv-net: rss_ctx: test queue
 changes vs user RSS config

On Sat, 06 Jul 2024 10:00:58 -0400 Willem de Bruijn wrote:
> > +    _send_traffic_check(cfg, port, ctx_ref, { 'target': (0, 3),
> > +                                              other_key: (1, 2) })  
> 
> How come queues missing from the indir set in non-main context are not
> empty (but noise)?

There may be background noise traffic on the main context.
If we are running iperf to the main context the noise will just add up
to the iperf traffic and all other queues should be completely idle.
If we're testing additional context we'll get only iperf traffic on
the target context, and all non-iperf noise stays on main context
(hence noise rather than empty)