From owner-freebsd-stable@FreeBSD.ORG Fri Feb 18 23:55:20 2011 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 67A641065670; Fri, 18 Feb 2011 23:55:20 +0000 (UTC) (envelope-from amvandemore@gmail.com) Received: from mail-bw0-f54.google.com (mail-bw0-f54.google.com [209.85.214.54]) by mx1.freebsd.org (Postfix) with ESMTP id 919B68FC40; Fri, 18 Feb 2011 23:55:19 +0000 (UTC) Received: by bwz12 with SMTP id 12so707597bwz.13 for ; Fri, 18 Feb 2011 15:55:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=vayPhJBiuvPXqD73KhaNf0l47F2ikiy1SJZBpBFxJnQ=; b=WpcsO2CvEoSYncu05TB1gEtRBQ4fw9feQ/diyv1iwVjwtWoNsAqZPH9MYLnm8+z0e7 F7rcx+7b3w6iSXyoSQxzqXKyvCghUdAIgEJevGFsLRcTJ8Hpm7qzIkKcNPuksUAEDkr/ TvZ8B2X1Y7WJ61JnaJJtoHgbcAbpnn0+EbxsI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=EyY7C4sQAgtBgOlnZW1K9ij3kjUy95uF5ngJUQMvpuekvWCrWZlff2GYiwBt6FeWRA VEq0fdrwh5sHpUDwdcnXxxaINB4wHo2abiMGT9wmejIUMqsQq/tvfxuaBD2hHKxZt2CJ 7laQjc6I30KCdBD+nJ5mgXmwsEi1eBXgMNGKc= MIME-Version: 1.0 Received: by 10.204.137.199 with SMTP id x7mr1208168bkt.165.1298071649530; Fri, 18 Feb 2011 15:27:29 -0800 (PST) Received: by 10.204.85.98 with HTTP; Fri, 18 Feb 2011 15:27:29 -0800 (PST) In-Reply-To: <20110218231306.GA69028@icarus.home.lan> References: <20110218164209.GA77903@nargothrond.kdm.org> <20110218225204.GA84087@nargothrond.kdm.org> <20110218231306.GA69028@icarus.home.lan> Date: Fri, 18 Feb 2011 17:27:29 -0600 Message-ID: From: Adam Vande More To: Jeremy Chadwick Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-scsi@freebsd.org, stable@freebsd.org, "Kenneth D. Merry" , Dmitry Morozovsky Subject: Re: mps(4) driver (LSI 6Gb SAS) commited to stable/8 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: Fri, 18 Feb 2011 23:55:20 -0000 On Fri, Feb 18, 2011 at 5:13 PM, Jeremy Chadwick wrote: > No -- /dev/urandom maybe, but not /dev/random. /dev/urandom will also > induce significantly higher CPU load than /dev/zero will. Don't forget > that ZFS is a processor-centric (read: no offloading) system. > /dev/urandom is linked to /dev/random. Is there some other difference I'm not aware of, or are you confusing it with Linux's random? -- Adam Vande More