linux-kernel - Re: [PATCH] nvme_core: scan namespaces asynchronously

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Message-ID: <385756c5-875d-4806-bdaf-70237c158e95@nvidia.com>
Date: Tue, 16 Jan 2024 21:20:28 +0000
From: Chaitanya Kulkarni <chaitanyak@...dia.com>
To: stuart hayes <stuart.w.hayes@...il.com>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Keith Busch
	<kbusch@...nel.org>, Jens Axboe <axboe@...nel.dk>, Christoph Hellwig
	<hch@....de>, Sagi Grimberg <sagi@...mberg.me>, Max Gurtovoy
	<mgurtovoy@...dia.com>, "linux-nvme@...ts.infradead.org"
	<linux-nvme@...ts.infradead.org>
Subject: Re: [PATCH] nvme_core: scan namespaces asynchronously


> I have numbers for the namespace scan time improvement.  Below is the 
> amount of time it took for
> all of the namespaces to show up when connecting to a controller with 
> 1002 namespaces:
>
> network latency   time without patch    time with patch
>   0                        6s                 1s
>  50                      210s                10s
> 100                      417s                18s
>
> I'll prepare a v2, removing the module parameter and including this data.
>

interesting! please include this data either in the cover-letter or in the
commit log for v2 ..

-ck