linux-kernel - Re: [PATCH] [RFC] Add support for uevents on block device idle changes

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Message-ID: <20091123195415.GA16833@srcf.ucam.org>
Date:	Mon, 23 Nov 2009 19:54:15 +0000
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	Pavel Machek <pavel@....cz>, Kay Sievers <kay.sievers@...y.org>,
	David Zeuthen <david@...ar.dk>, linux-kernel@...r.kernel.org,
	linux-hotplug@...r.kernel.org
Subject: Re: [PATCH] [RFC] Add support for uevents on block device idle
	changes

On Mon, Nov 23, 2009 at 08:50:00PM +0100, Jens Axboe wrote:

> If the polling works out, then yes that approach is certainly a lot
> better from a performance impact pov.
> 
> What kind of time intervals are you targetting?

On the order of a second. I'm doing benchmarking with my current 
implementation now, I'll let you know how it looks.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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