From owner-freebsd-current@FreeBSD.ORG Sat Nov 3 15:19:47 2012 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 306B8102 for ; Sat, 3 Nov 2012 15:19:47 +0000 (UTC) (envelope-from m.e.sanliturk@gmail.com) Received: from mail-vc0-f182.google.com (mail-vc0-f182.google.com [209.85.220.182]) by mx1.freebsd.org (Postfix) with ESMTP id CFBD88FC0A for ; Sat, 3 Nov 2012 15:19:46 +0000 (UTC) Received: by mail-vc0-f182.google.com with SMTP id fw7so6134943vcb.13 for ; Sat, 03 Nov 2012 08:19:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=fvLaO5eGtv5rJ6SFPFK8xdEupZ6ktnBmkPO0QezYoMA=; b=iPv+CkNIOAuYt5R6ekH3XbluU0aCVR1Nk99I6GDZ7ER38xSbQfhowSRO9XFLF2AMdK hkVkHW/a36dOPwhEnF2DDiJOYN8cK/sdALJ8uAbsdkuvkJmCg9yn2ZaUWjGSoZVci/cT J/OrwTqi0fvy2dylzZwCfVVksyCcS1K7b454Wm1zsYUHt3gmfBZrpHwv8zQQuJdKs2lV n799iNROIL5kGUe29ZHvDr+G9nBvuqsbEJ0yI6TmeRxjrC/P1U2dr1AhAVaGYcNKIDiC UQmPdhbWZ45Hl+UKmrSX4UhW70pDNMXUoEQ3cEeWXIkBl644/FXW4k+m8z/DXWpIOHip e7lg== MIME-Version: 1.0 Received: by 10.58.203.161 with SMTP id kr1mr4888102vec.35.1351955986155; Sat, 03 Nov 2012 08:19:46 -0700 (PDT) Received: by 10.58.218.35 with HTTP; Sat, 3 Nov 2012 08:19:46 -0700 (PDT) In-Reply-To: <509531DF.6050108@mu.org> References: <509531DF.6050108@mu.org> Date: Sat, 3 Nov 2012 08:19:46 -0700 Message-ID: Subject: Re: DragonFly vs FreeBSD scheduler From: Mehmet Erol Sanliturk To: Alfred Perlstein Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: freebsd-current@freebsd.org, Alie Tan X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 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, 03 Nov 2012 15:19:47 -0000 On Sat, Nov 3, 2012 at 8:01 AM, Alfred Perlstein wrote: > On 11/3/12 6:18 AM, Alie Tan wrote: > >> Hi, >> >> No offence, just curious about scheduler and its functionality. >> >> What is the different between this two that makes FreeBSD performance far >> behind DragonFly BSD? http://www.dragonflybsd.org/**release32/ >> > > Looks like a few specific benchmarks that DragonFly aimed to do well at > that we were unawares of. > > Not sure, didn't see DragonFly sharing the results with us until this > paper was published although I may have missed that. > > -Alfred > > > The following pages are available ( I do not know when they are created ) : http://www.dragonflybsd.org/docs/developer/ProjectsPage/ http://www.dragonflybsd.org/docs/developer/ProjectsPage/#index14h3 Disk scheduling rc scripts (GCI:Code) http://www.dragonflybsd.org/docs/developer/ProjectsPage/#index20h3 CPU scheduler http://www.dragonflybsd.org/docs/developer/ProjectsPage/#index21h3 I/O scheduler http://www.dragonflybsd.org/docs/developer/researchprojectspage/ http://www.dragonflybsd.org/docs/developer/researchprojectspage/#index8h3 Evaluate/Improve Context Switching Performance http://www.dragonflybsd.org/docs/developer/gsocprojectspage/ Implement further dsched disk scheduling policies (2011 Project: BFQ) Add SMT/HT awareness to our scheduler Extend dsched framework to support jails http://www.dragonflybsd.org/docs/developer/gsoc2011/ http://leaf.dragonflybsd.org/mailarchive/kernel/2011-04/msg00060.html [GSoC]Overview on my GSoC project: Implement BFQ disk scheduling policy http://www.google-melange.com/gsoc/project/google/gsoc2012/mihaicarabas/10001 Add SMT/HT awareness to DragonFlyBSD scheduler Mihai Carabas http://leaf.dragonflybsd.org/mailarchive/kernel/2012-03/msg00066.html [GSOC] Add SMT/HT awareness to DragonFlyBSD scheduler http://www.google-melange.com/gsoc/proposal/review/google/gsoc2012/mihaicarabas/1 Add SMT/HT awareness to DragonFlyBSD scheduler Mihai Carabas Thank you very much . Mehmet Erol Sanliturk