From owner-freebsd-hackers@FreeBSD.ORG Fri Nov 4 15:32:26 2011 Return-Path: Delivered-To: hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 23117106566B for ; Fri, 4 Nov 2011 15:32:26 +0000 (UTC) (envelope-from lev@FreeBSD.org) Received: from onlyone.friendlyhosting.spb.ru (onlyone.friendlyhosting.spb.ru [46.4.40.135]) by mx1.freebsd.org (Postfix) with ESMTP id D358F8FC12 for ; Fri, 4 Nov 2011 15:32:25 +0000 (UTC) Received: from lion.home.serebryakov.spb.ru (unknown [IPv6:2001:470:923f:1:78af:244a:397b:8de1]) (Authenticated sender: lev@serebryakov.spb.ru) by onlyone.friendlyhosting.spb.ru (Postfix) with ESMTPA id 0B0A34AC1C; Fri, 4 Nov 2011 19:31:53 +0400 (MSK) Date: Fri, 4 Nov 2011 19:31:32 +0400 From: Lev Serebryakov Organization: FreeBSD Project X-Priority: 3 (Normal) Message-ID: <1427176824.20111104193132@serebryakov.spb.ru> To: Arnaud Lacombe In-Reply-To: References: <20111103092222.GN37036@e-new.0x20.net> <20111103155802.7bfc1df0.ray@freebsd.org> <20111104004007.GA74831@dereel.lemis.com> <20111104015559.GE74831@dereel.lemis.com> <1101963570.20111104135610@serebryakov.spb.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Cc: hackers@freebsd.org Subject: Re: Porting FreeBSD to Raspberry Pi X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: lev@FreeBSD.org List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Nov 2011 15:32:26 -0000 Hello, Arnaud. You wrote 4 =D0=BD=D0=BE=D1=8F=D0=B1=D1=80=D1=8F 2011 =D0=B3., 18:53:22: > FWIW, referring to the technology two years ago in computer science is > just like referring to the Prehistory to make a point about mankind > today :/ Yep, completely relevant in most cases ;-) Same people, same wars, same love, same envy, same jealosy, nothing changed a lot. Really, people doesn't change a lot for last 100'000 years. Evolution is unstoppable, but very slow process ;-) But it completely irrelevant to NUMA support. As far as I understand, ULE scheduler knows about multi-level topology (maybe, with some glitches, according to mailing lists, but not fatal bugs), and there is no understanding what should do good NUMA-aware memory allocator, really, because threads tend to migrate from core to core and from socket to socket anyway. --=20 // Black Lion AKA Lev Serebryakov