From owner-freebsd-arch@FreeBSD.ORG Sun Oct 30 12:13:43 2011 Return-Path: Delivered-To: arch@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6438D106564A; Sun, 30 Oct 2011 12:13:43 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-vw0-f54.google.com (mail-vw0-f54.google.com [209.85.212.54]) by mx1.freebsd.org (Postfix) with ESMTP id 001A98FC08; Sun, 30 Oct 2011 12:13:42 +0000 (UTC) Received: by vws11 with SMTP id 11so6768924vws.13 for ; Sun, 30 Oct 2011 05:13:42 -0700 (PDT) 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; bh=xL4yG3RigPAUjAEqPIVdgtjroXN5GBga303DBFZa7IM=; b=lbizREuOP2rZl8oTGcNkfRCPd7LuFcaFm32qom/VZkooYJHAXwbtUcNhX16cr/8wbz ClQdAN0sFt7gNwEYc+VO6rTPMlyIukJcR6lGLU+0bDuFjgUDQENn6kfIFmj9bPoL0r0Y u9DNstkufC4F92mNhbt27PUEF2MKbff5JtZq0= MIME-Version: 1.0 Received: by 10.52.34.100 with SMTP id y4mr2515403vdi.66.1319976822249; Sun, 30 Oct 2011 05:13:42 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.52.164.101 with HTTP; Sun, 30 Oct 2011 05:13:42 -0700 (PDT) In-Reply-To: <1124900347.20111030160330@serebryakov.spb.ru> References: <201110281426.00013.jhb@freebsd.org> <4EAB550E.3060603@FreeBSD.org> <458756137.20111030024046@serebryakov.spb.ru> <908954806.20111030130143@serebryakov.spb.ru> <1855260864.20111030155231@serebryakov.spb.ru> <1124900347.20111030160330@serebryakov.spb.ru> Date: Sun, 30 Oct 2011 23:13:42 +1100 X-Google-Sender-Auth: hHRlIHSnt26VVFKjDPUKi_K4RHA Message-ID: From: Adrian Chadd To: Lev Serebryakov Content-Type: text/plain; charset=ISO-8859-1 Cc: arch@freebsd.org Subject: Re: [PATCH] fadvise(2) system call X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 30 Oct 2011 12:13:43 -0000 Yup, and the Linux AIO code is a bit silly. The last time I checked, it issued one outstanding read/write per FD, so you were't exactly going to get great parallel IO on a single file with their POSIX AIO support. :) I kinda hope that's changed. Adrian