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From: Andrew Lunn <andrew@lunn.ch>
Subject: Re: mlx5 broken affinity
Date: Thu, 2 Nov 2017 13:13:30 +0100
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Cc: Tariq Toukan <tariqt@mellanox.com>,
        Jes Sorensen <jsorensen@fb.com>,
        Saeed Mahameed <saeedm@dev.mellanox.co.il>,
        Networking <netdev@vger.kernel.org>,
        Leon Romanovsky <leonro@mellanox.com>,
        Saeed Mahameed <saeedm@mellanox.com>,
        Kernel Team <kernel-team@fb.com>,
        Christoph Hellwig <hch@lst.de>,
        Thomas Gleixner <tglx@linutronix.de>
To: Sagi Grimberg <sagi@grimberg.me>
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> >This means that if your NIC is on NUMA #1, and you reduce the number of
> >channels, you might end up working only with the cores on the far NUMA.
> >Not good!

> We deliberated on this before, and concluded that application affinity
> and device affinity are equally important. If you have a real use case
> that shows otherwise, its perfectly doable to start from the device home
> node.

Hi Sagi

You might find this talk at NetDev interesting:

https://www.netdevconf.org/2.2/session.html?shochat-devicemgmt-talk

	Andrew