From owner-freebsd-stable@FreeBSD.ORG Tue May 24 13:43:18 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8D666106566B for ; Tue, 24 May 2011 13:43:18 +0000 (UTC) (envelope-from freebsd-stable@m.gmane.org) Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by mx1.freebsd.org (Postfix) with ESMTP id 7DEB78FC24 for ; Tue, 24 May 2011 13:43:17 +0000 (UTC) Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1QOrtE-0001KG-Fc for freebsd-stable@freebsd.org; Tue, 24 May 2011 15:43:16 +0200 Received: from lara.cc.fer.hr ([161.53.72.113]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 24 May 2011 15:43:16 +0200 Received: from ivoras by lara.cc.fer.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 24 May 2011 15:43:16 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-stable@freebsd.org From: Ivan Voras Date: Tue, 24 May 2011 15:42:53 +0200 Lines: 18 Message-ID: References: <4DDBB0C4.5010109@FreeBSD.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: lara.cc.fer.hr User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.2.12) Gecko/20101102 Thunderbird/3.1.6 In-Reply-To: <4DDBB0C4.5010109@FreeBSD.org> X-Enigmail-Version: 1.1.2 Subject: Re: [poll] hyperthreading_allowed, hlt_logical_cpus, mp_watchdog X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 May 2011 13:43:18 -0000 On 24/05/2011 15:21, Andriy Gapon wrote: > > I am planning on some changes in head and would like to see if people use the > following features: > - machdep.hyperthreading_allowed tunable and sysctl > - machdep.hlt_logical_cpus tunable and sysctl > - mp_watchdog kernel option > > If you are using any of the above, please let me know - better via a private reply: > - which exactly of the mentioned above features you use > - please make distinction between use of tunables and sysctls > - tell for what you use the feature > - provide overview of your hardware, which scheduler you use and intended purpose > of the system Whatever you do, please leave at least some way (at least a tunable) to enable/disable HTT - some workloads are better with, and some without it, and some BIOSes are unreliable in enabling/disabling it :)