From owner-freebsd-stable@FreeBSD.ORG Thu Dec 15 16:42:12 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 3E911106566C; Thu, 15 Dec 2011 16:42:12 +0000 (UTC) (envelope-from asmrookie@gmail.com) Received: from mail-fx0-f54.google.com (mail-fx0-f54.google.com [209.85.161.54]) by mx1.freebsd.org (Postfix) with ESMTP id 1CB118FC0A; Thu, 15 Dec 2011 16:42:10 +0000 (UTC) Received: by faaf16 with SMTP id f16so3582013faa.13 for ; Thu, 15 Dec 2011 08:42:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=8kUH6rJcxKtm25qBqXuAeBlmVWtVD5+Q5ma5HlD4/UY=; b=Ya4r1MsNOoyFFjTbRWnuqq4Ra5KhzIU8HozC5H8ltzEm+SBP4X8PZACbHOrS4yHl4Y 25bymJ4J8rp0Fqrsc9h4fzC4QOSmVi2D9lzjE9cfBRDhF+ZDj0bjcU078v8Clp34msjX 4gk07oPtDNL7ZAREgzlbPvlzDV+8w1/Ty9u+o= MIME-Version: 1.0 Received: by 10.180.96.103 with SMTP id dr7mr6732293wib.16.1323967329953; Thu, 15 Dec 2011 08:42:09 -0800 (PST) Sender: asmrookie@gmail.com Received: by 10.216.171.8 with HTTP; Thu, 15 Dec 2011 08:42:09 -0800 (PST) In-Reply-To: <4EEA227E.7080704@sentex.net> References: <4EE1EAFE.3070408@m5p.com> <4EE22421.9060707@gmail.com> <4EE6060D.5060201@mail.zedat.fu-berlin.de> <4EE69C5A.3090005@FreeBSD.org> <20111213104048.40f3e3de@nonamehost.> <20111213230441.GB42285@stack.nl> <4ee7e2d3.0a3c640a.4617.4a33SMTPIN_ADDED@mx.google.com> <4EE8D607.1000504@sentex.net> <4EEA227E.7080704@sentex.net> Date: Thu, 15 Dec 2011 17:42:09 +0100 X-Google-Sender-Auth: rWvfkJJt4u5T0-KL-sef3vLPTr0 Message-ID: From: Attilio Rao To: Mike Tancsa Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: Ivan Klymenko , mdf@freebsd.org, Doug Barton , freebsd-stable@freebsd.org, Jilles Tjoelker , "O. Hartmann" , Current FreeBSD , freebsd-performance@freebsd.org Subject: Re: SCHED_ULE should not be the default 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: Thu, 15 Dec 2011 16:42:12 -0000 2011/12/15 Mike Tancsa : > On 12/15/2011 11:26 AM, Attilio Rao wrote: >> >> Hi Mike, >> was that just the same codebase with the switch SCHED_4BSD/SCHED_ULE? > > Hi Attilio, > =C2=A0 =C2=A0 =C2=A0 =C2=A0It was the same codebase. > > >> Could you retry the bench checking CPU usage and possible thread >> migration around for both cases? > > I can, but how do I do that ? I'm thinking now to a better test-case for this: can you try that on a tmpfs volume? Also what filesystem you were using? How many CPUs were in place? Did you reboot before to move the steal_thresh value? Attilio --=20 Peace can only be achieved by understanding - A. Einstein