From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-24-ewr.dyndns.com (mxout-028-ewr.mailhop.org [216.146.33.28]) by lists.bufferbloat.net (Postfix) with ESMTP id 585582E0136 for ; Tue, 22 Mar 2011 20:07:40 -0700 (PDT) Received: from scan-21-ewr.mailhop.org (scan-21-ewr.local [10.0.141.243]) by mail-24-ewr.dyndns.com (Postfix) with ESMTP id 800325CE2C6 for ; Wed, 23 Mar 2011 03:07:36 +0000 (UTC) X-Spam-Score: 0.0 () X-Mail-Handler: MailHop by DynDNS X-Originating-IP: 46.4.11.11 Received: from nbd.name (nbd.name [46.4.11.11]) by mail-24-ewr.dyndns.com (Postfix) with ESMTP id 136E35CDF32 for ; Wed, 23 Mar 2011 03:07:32 +0000 (UTC) Message-ID: <4D8963F2.5010001@openwrt.org> Date: Wed, 23 Mar 2011 04:07:30 +0100 From: Felix Fietkau User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.15) Gecko/20110303 Thunderbird/3.1.9 MIME-Version: 1.0 To: bloat-devel@lists.bufferbloat.net Subject: Re: debloat-testing loadlatency test References: <87wrjsbki1.fsf@cruithne.co.teklibre.org> <92F8B514-76F9-45E5-BB9F-C94BA1CA66B4@gmail.com> <8762rc6jpo.fsf@cruithne.co.teklibre.org> <4D8937E5.9010209@openwrt.org> In-Reply-To: <4D8937E5.9010209@openwrt.org> X-Enigmail-Version: 1.1.1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: bloat-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: "Developers working on AQM, device drivers, and networking stacks" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 Mar 2011 03:07:40 -0000 On 2011-03-23 12:59 AM, Felix Fietkau wrote: > On 2011-03-22 2:13 AM, Dave Täht wrote: >> Jonathan Morton writes: >> >>> On 21 Mar, 2011, at 4:45 pm, Dave Täht wrote: >>> >>>> I aborted the test when I got up this morning. >>> >>> Yes, it looks as though it may have got stuck, possibly on a >>> partly-mitigated race condition I found. A full test run should never >>> take that long, as there is an override condition which forces a >>> scenario to complete after about 10 minutes. >> >> I was looking over rngs a little today, it looked like drand48_r would >> be threadsafe... > Made a version using a user space port of freebsd's arc4random instead > of gsl. > http://nbd.name/gitweb.cgi?p=loadlatency.git;a=summary > git://nbd.name/loadlatency.git > If any of you want write access to that repository, just send me an SSH key. Update: used Bob Jenkins' public domain rand.c instead - on my machine the result is about twice as fast as the gsl random function. - Felix