netdev - Re: [RFC PATCH net-next] Add xsk_rr an AF

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Message-ID: <Z-Hdj_u0-IkYY4ob@mini-arch>
Date: Mon, 24 Mar 2025 15:32:47 -0700
From: Stanislav Fomichev <stfomichev@...il.com>
To: Samiullah Khawaja <skhawaja@...gle.com>
Cc: Jakub Kicinski <kuba@...nel.org>,
	"David S . Miller " <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
	almasrymina@...gle.com, willemb@...gle.com, jdamato@...tly.com,
	mkarsten@...terloo.ca, netdev@...r.kernel.org
Subject: Re: [RFC PATCH net-next] Add xsk_rr an AF_XDP benchmark to measure
 latency

On 03/20, Samiullah Khawaja wrote:
> Note: This is a benchmarking tool that is used for experiments in the
> upcoming v4 of Napi threaded busypoll series. Not intended to be merged.
> 
> xsk_rr is a benchmarking tool to measure latency using AF_XDP between
> two nodes. The benchmark can be run with different arguments to simulate
> traffic:

We might want to have something like this, but later, once we have NIPA
runners for vendor NICs. The test would have to live in
tools/testing/selftests/drivers/net/hw, have a python executor to run
it on host/peer and expose the data in some ingestible/trackable format
(so we can mark it red/green depending on the range on the dashboard).

But I might be wrong, having flaky (most of them are) perf tests might not
be super valuable.