From owner-freebsd-arch@FreeBSD.ORG  Fri Sep 30 12:57:11 2005
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To: Robert Watson <rwatson@FreeBSD.org>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Fri, 30 Sep 2005 13:47:36 BST."
	<20050930134526.R71864@fledge.watson.org> 
Date: Fri, 30 Sep 2005 14:57:08 +0200
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Cc: arch@FreeBSD.org, Gleb Smirnoff <glebius@FreeBSD.org>, net@FreeBSD.org
Subject: Re: [REVIEW/TEST] polling(4) changes 
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In message <20050930134526.R71864@fledge.watson.org>, Robert Watson writes:
>On Fri, 30 Sep 2005, Poul-Henning Kamp wrote:
>
>> I still think we should stop having this network-centric view of polling 
>> and implement _real_ *device* polling, so that other device types can 
>> use it as well.
>
>While I agree that we should offer polling to non-network device drivers 
>also, I think it's worth observing that the network awareness of our 
>current polling code has some interesting advantages.  [...]

None of which could not be implemented on top of a general polling
facility, and some of which makes polling unusable with high end
networking hardware like a 8x1Gige card where all ports are handled
by the same interrupt.

Anyway, I just wanted to make the point, not start a long discussion.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.