From owner-freebsd-current@FreeBSD.ORG Sat Mar 28 00:08:42 2009 Return-Path: Delivered-To: freebsd-current@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id CF61E106564A; Sat, 28 Mar 2009 00:08:42 +0000 (UTC) (envelope-from rwatson@FreeBSD.org) Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42]) by mx1.freebsd.org (Postfix) with ESMTP id A9CD78FC17; Sat, 28 Mar 2009 00:08:42 +0000 (UTC) (envelope-from rwatson@FreeBSD.org) Received: from fledge.watson.org (fledge.watson.org [65.122.17.41]) by cyrus.watson.org (Postfix) with ESMTPS id 360CC46B45; Fri, 27 Mar 2009 20:08:42 -0400 (EDT) Date: Sat, 28 Mar 2009 00:08:42 +0000 (GMT) From: Robert Watson X-X-Sender: robert@fledge.watson.org To: Poul-Henning Kamp In-Reply-To: <7362.1238195438@critter.freebsd.dk> Message-ID: References: <7362.1238195438@critter.freebsd.dk> User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: Sergey Babkin , freebsd-hackers@FreeBSD.org, attilio@FreeBSD.org, freebsd-current@FreeBSD.org, prashant.vaibhav@gmail.com Subject: Re: Improving the kernel/i386 timecounter performance (GSoC proposal) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 28 Mar 2009 00:08:43 -0000 On Fri, 27 Mar 2009, Poul-Henning Kamp wrote: > In message , Robert > Wats on writes: > >> In which case user application threads will need to know their CPU [...] > > Didn't jemalloc solve that problem once already ? I think jemalloc implements thread-affinity for arenas rather than CPU-affinity in the strict sense, but I may misread. Robert N M Watson Computer Laboratory University of Cambridge