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From: Ming Lei <ming.lei@redhat.com>
To: Thomas Gleixner <tglx@linutronix.de>, Jens Axboe <axboe@kernel.dk>
Cc: linux-kernel@vger.kernel.org, linux-block@vger.kernel.org,
	Christoph Hellwig <hch@lst.de>,
	John Garry <john.garry@huawei.com>
Subject: Re: [PATCH V4 0/6] genirq/affinity: Abstract APIs from managed irq affinity spread
Date: Wed, 11 Jan 2023 10:18:04 +0800	[thread overview]
Message-ID: <Y74cXN4SP7FNtSl3@T590> (raw)
In-Reply-To: <20221227022905.352674-1-ming.lei@redhat.com>

Hello Thomas, Jens and guys,

On Tue, Dec 27, 2022 at 10:28:59AM +0800, Ming Lei wrote:
> Hello,
> 
> irq_build_affinity_masks() actually grouping CPUs evenly into each managed
> irq vector according to NUMA and CPU locality, and it is reasonable to abstract
> one generic API for grouping CPUs evenly, the idea is suggested by Thomas
> Gleixner.
> 
> group_cpus_evenly() is abstracted and put into lib/, so blk-mq can re-use
> it to build default queue mapping.
> 
> blk-mq IO perf data is observed as more stable, meantime with big
> improvement, see detailed data in the last patch.
> 
> Please consider it for v6.3!
> 
> V4:
> 	- address comments from John, not export the API, given so far no
> 	  module uses this symbol
> 	- add maintainer entry for new added lib/group_cpus.c
> 	- rebase on 6.2

Any chance to take a look at this patchset?


thanks,
Ming


  parent reply	other threads:[~2023-01-11  2:19 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-27  2:28 [PATCH V4 0/6] genirq/affinity: Abstract APIs from managed irq affinity spread Ming Lei
2022-12-27  2:29 ` [PATCH V4 1/6] genirq/affinity: Remove the 'firstvec' parameter from irq_build_affinity_masks Ming Lei
2023-01-11  9:23   ` John Garry
2022-12-27  2:29 ` [PATCH V4 2/6] genirq/affinity: Pass affinity managed mask array to irq_build_affinity_masks Ming Lei
2023-01-11  9:46   ` John Garry
2022-12-27  2:29 ` [PATCH V4 3/6] genirq/affinity: Don't pass irq_affinity_desc " Ming Lei
2023-01-11 10:16   ` John Garry
2022-12-27  2:29 ` [PATCH V4 4/6] genirq/affinity: Rename irq_build_affinity_masks as group_cpus_evenly Ming Lei
2022-12-27  2:29 ` [PATCH V4 5/6] genirq/affinity: Move group_cpus_evenly() into lib/ Ming Lei
2022-12-27  2:29 ` [PATCH V4 6/6] blk-mq: Build default queue map via group_cpus_evenly() Ming Lei
2023-01-11  9:58   ` John Garry
2023-01-11  2:18 ` Ming Lei [this message]
2023-01-11 18:58   ` [PATCH V4 0/6] genirq/affinity: Abstract APIs from managed irq affinity spread Thomas Gleixner
2023-01-12  1:45     ` Ming Lei
2023-01-11 19:04   ` Jens Axboe
2023-01-16 19:13     ` Thomas Gleixner
2023-01-17 13:12       ` Jens Axboe
2023-01-11 10:06 ` John Garry

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