From owner-freebsd-current Thu Jan 23 20: 7:13 2003 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 0E21B37B401 for ; Thu, 23 Jan 2003 20:07:12 -0800 (PST) Received: from dan.emsphone.com (dan.emsphone.com [199.67.51.101]) by mx1.FreeBSD.org (Postfix) with ESMTP id 784AC43ED8 for ; Thu, 23 Jan 2003 20:07:11 -0800 (PST) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.12.6/8.12.6) id h0O4751O089383; Thu, 23 Jan 2003 22:07:05 -0600 (CST) (envelope-from dan) Date: Thu, 23 Jan 2003 22:07:05 -0600 From: Dan Nelson To: Terry Lambert Cc: Atte Peltomaki , freebsd-current@FreeBSD.ORG Subject: Re: Performance problems with 5.0-RELEASE Message-ID: <20030124040705.GA7945@dan.emsphone.com> References: <20030123162644.GA560@naama> <3E309E58.C0745816@mindspring.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3E309E58.C0745816@mindspring.com> X-OS: FreeBSD 5.0-CURRENT X-message-flag: Outlook Error User-Agent: Mutt/1.5.3i Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In the last episode (Jan 23), Terry Lambert said: > Atte Peltomaki wrote: > > Description: > > > > Every time machine is under heavy load (CPU, network, disks) it > > completely jamms for fraction of a second for every ten seconds or so, > > everything just stops and then continues. I noticed this while compiling > > software and copying files over NFS while listening to MP3's, later > > realized it wasn't just MP3's that lagged, but the whole machine, > > including console and everything. > > If you lean on the keyboard, or if you set up the network adapters > as "entropy" sources, does the problem fix itself? If you're thinking it's /dev/random blocking on him, 5.0's output never blocks. Its output is a PRNG periodically seeded from random data, including interrupt timings and LAN traffic by default. http://www.freebsd.org/cgi/man.cgi?query=random&sektion=4&manpath=FreeBSD+5.0-current -- Dan Nelson dnelson@allantgroup.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message