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Message-ID: <irhdgxgnyz76ss7p74dnriix6llnxquowvzh3dxb7mgwd54zd7@euhdihb5spgw>
Date: Tue, 2 Jul 2024 09:25:52 +0200
From: Daniel Wagner <dwagner@...e.de>
To: Hannes Reinecke <hare@...e.de>
Cc: Ming Lei <ming.lei@...hat.com>, Jens Axboe <axboe@...nel.dk>, 
	Keith Busch <kbusch@...nel.org>, Sagi Grimberg <sagi@...mberg.me>, 
	Thomas Gleixner <tglx@...utronix.de>, Christoph Hellwig <hch@....de>, 
	Frederic Weisbecker <fweisbecker@...e.com>, Mel Gorman <mgorman@...e.de>, 
	Sridhar Balaraman <sbalaraman@...allelwireless.com>, "brookxu.cn" <brookxu.cn@...il.com>, 
	linux-kernel@...r.kernel.org, linux-block@...r.kernel.org, linux-nvme@...ts.infradead.org
Subject: Re: [PATCH v2 3/3] lib/group_cpus.c: honor housekeeping config when
 grouping CPUs

On Mon, Jul 01, 2024 at 10:37:46AM GMT, Hannes Reinecke wrote:
> Hmm. Guess we need to modify the grouping algorithm to group across all
> cpus, but ensure that each group consists either of all housekeeping CPUs or
> all isolated cpus.

This is what this series does, though just for the housekeeping CPUs. v1
introduces the io_queue option for isolcpus which made sure the
managed_irq behavior doesn't change.

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