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From: Jakub Kicinski <kuba@kernel.org>
To: Carolina Jubran <cjubran@nvidia.com>
Cc: Shuah Khan <shuah@kernel.org>,
	Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S . Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Paolo Abeni <pabeni@redhat.com>, Gal Pressman <gal@nvidia.com>,
	Tariq Toukan <tariqt@nvidia.com>,
	"Cosmin Ratiu" <cratiu@nvidia.com>,
	Nimrod Oren <noren@nvidia.com>, Mark Bloch <mbloch@nvidia.com>,
	<linux-kernel@vger.kernel.org>, <linux-kselftest@vger.kernel.org>,
	<netdev@vger.kernel.org>
Subject: Re: [PATCH 3/3] selftests: drv-net: Relax total BW check in devlink_rate_tc_bw.py
Date: Tue, 2 Sep 2025 16:21:01 -0700	[thread overview]
Message-ID: <20250902162101.5c78cc88@kernel.org> (raw)
In-Reply-To: <20250831080641.1828455-4-cjubran@nvidia.com>

On Sun, 31 Aug 2025 11:06:41 +0300 Carolina Jubran wrote:
> Because the measured total is the sum of two iperf3 streams that do not
> always start or stop at the same time

That's solvable, tho? iperf3 has --json support, it will give you 
the b/w readings in the configured intervals (1sec by default).
With the interval based samples at hand you should be able to select
only the period in which b/w is stable ("middle" of the test).

While at it it may make sense to switch to lib/py/load.py wrappers
rather than threading the python locally in the test.

  parent reply	other threads:[~2025-09-02 23:21 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-31  8:06 [PATCH 0/3] selftests: drv-net: Fix issues in devlink_rate_tc_bw.py Carolina Jubran
2025-08-31  8:06 ` [PATCH 1/3] selftests: drv-net: Fix and clarify TC bandwidth split " Carolina Jubran
2025-09-01 15:45   ` Simon Horman
2025-08-31  8:06 ` [PATCH 2/3] selftests: drv-net: Fix tolerance calculation " Carolina Jubran
2025-09-01 15:45   ` Simon Horman
2025-08-31  8:06 ` [PATCH 3/3] selftests: drv-net: Relax total BW check " Carolina Jubran
2025-09-01 15:46   ` Simon Horman
2025-09-02 23:21   ` Jakub Kicinski [this message]
2025-09-05 22:32     ` Jakub Kicinski

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