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Date:      Thu, 24 Apr 2008 08:09:13 +1000
From:      Antony Mawer <fbsd-current@mawer.org>
To:        Robert Watson <rwatson@FreeBSD.org>
Cc:        freebsd-current@freebsd.org, Dmitriy Kirhlarov <dimma@higis.ru>
Subject:   Re: Http Accept filters (accf_http)
Message-ID:  <480FB389.2030102@mawer.org>
In-Reply-To: <20080423154626.F64388@fledge.watson.org>
References:  <8481.1208889581@critter.freebsd.dk> <480E3E66.3000303@samsco.org>	<fuli49$pa3$1@ger.gmane.org> <480E589C.8010108@delphij.net>	<480EE8B2.2020907@higis.ru> <20080423154626.F64388@fledge.watson.org>

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Robert Watson wrote:
...
> I'm aware of a few problems relating to accept filters, and "fixing" 
> them has been on my todo list for several years.  Unfortunately, other 
> things keep getting ahead of that in the todo list.  One known issue is 
> that accept filters aren't entirely happy with the new multi-processor 
> locking world order.

Hi Robert,

Does this mean that on a multi-core system, one is better avoiding 
accept filters and accepting a small latency hit in return for better 
SMP scalability/reduced lock contention?

--Antony



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