From owner-freebsd-hackers@FreeBSD.ORG Thu Oct 2 19:53:36 2014 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 3F65A49B; Thu, 2 Oct 2014 19:53:36 +0000 (UTC) Received: from mho-02-ewr.mailhop.org (mho-02-ewr.mailhop.org [204.13.248.72]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 11181945; Thu, 2 Oct 2014 19:53:35 +0000 (UTC) Received: from [73.34.117.227] (helo=ilsoft.org) by mho-02-ewr.mailhop.org with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.72) (envelope-from ) id 1XZmRN-000IkX-G5; Thu, 02 Oct 2014 19:53:29 +0000 Received: from [172.22.42.240] (revolution.hippie.lan [172.22.42.240]) by ilsoft.org (8.14.9/8.14.9) with ESMTP id s92JrSJY019832; Thu, 2 Oct 2014 13:53:28 -0600 (MDT) (envelope-from ian@FreeBSD.org) X-Mail-Handler: Dyn Standard SMTP by Dyn X-Originating-IP: 73.34.117.227 X-Report-Abuse-To: abuse@dyndns.com (see http://www.dyndns.com/services/sendlabs/outbound_abuse.html for abuse reporting information) X-MHO-User: U2FsdGVkX19t8LOfVzClEo9w+8sK1wFp X-Authentication-Warning: paranoia.hippie.lan: Host revolution.hippie.lan [172.22.42.240] claimed to be [172.22.42.240] Subject: Re: freebsd 10 kqueue timer regression From: Ian Lepore To: Adrian Chadd In-Reply-To: References: <8ABC0977-FB8F-45E7-ACCC-BFA92EE22E1C@glccom.com> <8587D819-AA2F-4387-A4E9-523014384672@glccom.com> Content-Type: text/plain; charset="us-ascii" Date: Thu, 02 Oct 2014 13:53:28 -0600 Message-ID: <1412279608.12052.24.camel@revolution.hippie.lan> Mime-Version: 1.0 X-Mailer: Evolution 2.32.1 FreeBSD GNOME Team Port Content-Transfer-Encoding: 7bit Cc: "freebsd-hackers@freebsd.org" , Paul Albrecht X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 02 Oct 2014 19:53:36 -0000 On Thu, 2014-10-02 at 12:47 -0700, Adrian Chadd wrote: > I'm confused; it's doing 50 loops of a 20msec timer, right? So that's 1000ms. Yes, so the entire loop should take 1000ms maybe + 1ms. Instead it takes 1070. When I run it on an armv6 system running -current it takes 1050. When I run it on my 8.4 desktop (pre-eventtimers) it takes 1013. -- Ian