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From: Chaitanya Kulkarni <Chaitanya.Kulkarni@wdc.com>
To: Sagi Grimberg <sagi@grimberg.me>, "hch@lst.de" <hch@lst.de>
Cc: "linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>
Subject: Re: [RFC PATCH 0/2] nvmet: add polling support
Date: Thu, 12 Dec 2019 05:44:43 +0000	[thread overview]
Message-ID: <BYAPR04MB57495A09DE5E7652E2B38AAF86550@BYAPR04MB5749.namprd04.prod.outlook.com> (raw)
In-Reply-To: <fe370161-13d7-a005-2666-968107be13bd@grimberg.me>

On 12/11/2019 05:01 PM, Sagi Grimberg wrote:
> percpu threads per namespace? Sounds like the wrong approach. These
> threads will compete for cpu time with the main nvmet contexts.
>
That make sense, how about a global threadpool for target which can be 
shared between all the subsystem and their name-spaces just like we
have buffered_io_wq?
> Have you considered having the main nvmet contexts incorporate polling
> activity between I/Os? Don't have a great dea on how to do it from first
> thought...
>

I am not able to understand nvmet context, can you please elaborate ?
Are you referring to the pattern we one have in the
nvme_execute_rq_polled() ?


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  reply	other threads:[~2019-12-12  5:44 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-10  6:25 Chaitanya Kulkarni
2019-12-10  6:25 ` [RFC PATCH 1/2] nvmet: add bdev-ns " Chaitanya Kulkarni
2020-01-20 12:52   ` Max Gurtovoy
2020-01-21 19:22     ` Chaitanya Kulkarni
2020-01-23 14:23       ` Max Gurtovoy
2020-01-30 18:19         ` Chaitanya Kulkarni
2019-12-10  6:25 ` [RFC PATCH 2/2] nvmet: add file-ns " Chaitanya Kulkarni
2019-12-12  1:01 ` [RFC PATCH 0/2] nvmet: add " Sagi Grimberg
2019-12-12  5:44   ` Chaitanya Kulkarni [this message]
2019-12-12 20:32     ` Sagi Grimberg
2020-01-20  5:13       ` Chaitanya Kulkarni
2020-01-20  4:48   ` Chaitanya Kulkarni

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