The following reply was made to PR i386/135447; it has been noted by GNATS.
From: Dmitry Kubov <d...@garant.ru>
To: Alexander Motin <m...@freebsd.org>
Cc: Andriy Gapon <a...@freebsd.org>, j...@freebsd.org,
Subject: Re: i386/135447: [i386] [request] Intel Core i7 and Nehalem-EP new
features not supported
Date: Fri, 24 Sep 2010 11:34:51 +0400
> Dmitry Kubov wrote:
>> Is it possible to stick running threads to same CPU core for longer time
>> to avoid C-states latencies penalty?
> man 1 cpuset
Its static assignment, requires scheduling all tasks by hand.
cpuset -l 7 ubench -cs
Ubench Single CPU: 453051 (0.40s)
less than 1% boost.
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