netdev - Re: [PATCH RFC net-next 1/2] net: Reference bpf_redirect_info via task_struct on PREEMPT

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Message-ID: <04d72b93-a423-4574-a98e-f8915a949415@kernel.org>
Date: Tue, 20 Feb 2024 10:17:53 +0100
From: Jesper Dangaard Brouer <hawk@...nel.org>
To: Toke Høiland-Jørgensen <toke@...hat.com>,
 Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc: bpf@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH RFC net-next 1/2] net: Reference bpf_redirect_info via
 task_struct on PREEMPT_RT.

On 19/02/2024 20.01, Toke Høiland-Jørgensen wrote:
> may be simpler to use pktgen, and at 10G rates that shouldn't become a
> bottleneck either. The pktgen_sample03_burst_single_flow.sh script in
> samples/pktgen in the kernel source tree is fine for this usage.

Example of running script:
  ./pktgen_sample03_burst_single_flow.sh -vi mlx5p1 -d 198.18.1.1 -m 
ec:0d:9a:db:11:c4 -t 12

Notice the last parameter, which is number threads to start.
If you have a ixgbe NIC driver, then I recommend -t 2 even if you have 
more CPUs.

--Jesper