From owner-freebsd-hackers@FreeBSD.ORG Mon Feb 7 02:32:54 2011 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 94FC3106566C for ; Mon, 7 Feb 2011 02:32:54 +0000 (UTC) (envelope-from ivoras@gmail.com) Received: from mail-qw0-f54.google.com (mail-qw0-f54.google.com [209.85.216.54]) by mx1.freebsd.org (Postfix) with ESMTP id 43BE68FC12 for ; Mon, 7 Feb 2011 02:32:54 +0000 (UTC) Received: by qwj9 with SMTP id 9so3155358qwj.13 for ; Sun, 06 Feb 2011 18:32:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:in-reply-to:references:from :date:x-google-sender-auth:message-id:subject:to:cc:content-type; bh=eD6WSZvpyVrVrZze9k/25mDiwx4qGqEGLO+K3eMzCMs=; b=x0ZdnyQPPUabEvxNMxT6WcKDHYqhq8m1dECjGN+4omSfCqIPP5ROjyoA4gcT4MPefA RLeDOInEfFRGutqGcgobVZV4znKaJxxnqJyfzD8yZqHQ155e1VNVSda2Y+tm0btteU1Y mVNT/m6IDM/wTHENEisr7yz2Bd4nO3E6vKSZI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type; b=UnzATV9BXp5oAJWe1JSYgOwBYnNaV0RXe71pxANsLjcj53CC9HRylt3a8X+Z9qdYmd /b5/B/kHGwOdK/SH11MJCgCktRTam6baLvPrJR6uk0CMitxkii6m/bgwdphcNLrlrq4I miWNOvSLbegC9s6cgfIEjVhZSehmVbVbm6RtE= Received: by 10.229.97.134 with SMTP id l6mr5117314qcn.253.1297045973468; Sun, 06 Feb 2011 18:32:53 -0800 (PST) MIME-Version: 1.0 Sender: ivoras@gmail.com Received: by 10.229.67.2 with HTTP; Sun, 6 Feb 2011 18:32:13 -0800 (PST) In-Reply-To: <990005CD-39BD-45F6-BD07-ACEE79DF5A03@gsoft.com.au> References: <53A394ED-7C2E-4E4B-A9A7-CB5F1B27DBE3@gsoft.com.au> <7108E013-77D1-47F8-892E-5027DB7D432B@gsoft.com.au> <990005CD-39BD-45F6-BD07-ACEE79DF5A03@gsoft.com.au> From: Ivan Voras Date: Mon, 7 Feb 2011 03:32:13 +0100 X-Google-Sender-Auth: CZ1pLjwbWIN8StuviUdkC1pIyJo Message-ID: To: "Daniel O'Connor" Content-Type: text/plain; charset=UTF-8 Cc: freebsd-hackers@freebsd.org Subject: Re: Scheduler question X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 07 Feb 2011 02:32:54 -0000 On 7 February 2011 02:41, Daniel O'Connor wrote: > > On 05/02/2011, at 12:43, Daniel O'Connor wrote: >> On 05/02/2011, at 11:09, Ivan Voras wrote: >>>> It doesn't allocate memory once it's going, everything is preallocated before the data transfer starts. >>>> >>>> I'll have a go with mlock() and see what happens. >>> >>> Did you find anything interesting? >> >> I'll be looking at it on Monday, I will let you know :) > > No luck with mlock() so it wouldn't appear to be paging is the issue :( I'm also interested in raw device vs file system access!