From owner-freebsd-current@FreeBSD.ORG Tue Jul 20 12:33:50 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5E7A516A4CE for ; Tue, 20 Jul 2004 12:33:50 +0000 (GMT) Received: from storm.FreeBSD.org.uk (storm.FreeBSD.org.uk [194.242.157.42]) by mx1.FreeBSD.org (Postfix) with ESMTP id D584C43D45 for ; Tue, 20 Jul 2004 12:33:49 +0000 (GMT) (envelope-from mark@grondar.org) Received: from storm.FreeBSD.org.uk (Ugrondar@localhost [127.0.0.1]) i6KCXmEr019565; Tue, 20 Jul 2004 13:33:48 +0100 (BST) (envelope-from mark@grondar.org) Received: (from Ugrondar@localhost)i6KCXmIg019564; Tue, 20 Jul 2004 13:33:48 +0100 (BST) (envelope-from mark@grondar.org) X-Authentication-Warning: storm.FreeBSD.org.uk: Ugrondar set sender to mark@grondar.org using -f Received: from grondar.org (localhost [127.0.0.1])i6KCNRjo078221; Tue, 20 Jul 2004 13:23:27 +0100 (BST) (envelope-from mark@grondar.org) From: Mark Murray Message-Id: <200407201223.i6KCNRjo078221@grimreaper.grondar.org> To: Scott Long In-Reply-To: Your message of "Tue, 20 Jul 2004 05:37:11 MDT." <40FD03E7.8000300@samsco.org> Date: Tue, 20 Jul 2004 13:23:27 +0100 Sender: mark@grondar.org X-Mailman-Approved-At: Wed, 21 Jul 2004 11:38:15 +0000 cc: jesk cc: freebsd-current@FreeBSD.ORG Subject: Re: I/O or Threading Suffer X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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: Tue, 20 Jul 2004 12:33:50 -0000 Scott Long writes: > If you are dd'ing from /dev/random, then you are depleting the entropy > pool. Anything else that tries to get random numbers is going to block > in strange ways. Trying just dd'ing from /dev/zero and see if that > makes a difference. For current, there is no such thing as "depleting the entropy pool". At worst, this will make the output generator work hard, consuming CPU cycles. M -- Mark Murray iumop ap!sdn w,I idlaH