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Message-ID: <20240514054345.DZkx7fJs@linutronix.de>
Date: Tue, 14 May 2024 07:43:45 +0200
From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To: Jesper Dangaard Brouer <hawk@...nel.org>
Cc: Alexei Starovoitov <alexei.starovoitov@...il.com>,
	Toke Høiland-Jørgensen <toke@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Network Development <netdev@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Boqun Feng <boqun.feng@...il.com>,
	Daniel Borkmann <daniel@...earbox.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Frederic Weisbecker <frederic@...nel.org>,
	Ingo Molnar <mingo@...hat.com>, Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Waiman Long <longman@...hat.com>, Will Deacon <will@...nel.org>,
	Alexei Starovoitov <ast@...nel.org>,
	Andrii Nakryiko <andrii@...nel.org>,
	Eduard Zingerman <eddyz87@...il.com>, Hao Luo <haoluo@...gle.com>,
	Jiri Olsa <jolsa@...nel.org>,
	John Fastabend <john.fastabend@...il.com>,
	KP Singh <kpsingh@...nel.org>,
	Martin KaFai Lau <martin.lau@...ux.dev>, Song Liu <song@...nel.org>,
	Stanislav Fomichev <sdf@...gle.com>,
	Yonghong Song <yonghong.song@...ux.dev>, bpf <bpf@...r.kernel.org>
Subject: Re: [PATCH net-next 14/15 v2] net: Reference bpf_redirect_info via
 task_struct on PREEMPT_RT.

On 2024-05-14 07:07:21 [+0200], Jesper Dangaard Brouer wrote:
> > pktgen_sample03_burst_single_flow.sh has been used to send packets and
> > "xdp-bench drop $nic -e" to receive them.
> > 
> 
> Sorry, but a XDP_DROP test will not activate the code you are modifying.
> Thus, this test is invalid and doesn't tell us anything about your code
> changes.
> 
> The code is modifying the XDP_REDIRECT handling system. Thus, the
> benchmark test needs to activate this code.

This was a misunderstanding on my side then. What do you suggest
instead? Same setup but "redirect" on the same interface instead of
"drop"?

Sebastian

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