From owner-freebsd-stable@FreeBSD.ORG Sun Jul 20 22:09:57 2014 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 26448C33 for ; Sun, 20 Jul 2014 22:09:57 +0000 (UTC) Received: from mail-qc0-x22d.google.com (mail-qc0-x22d.google.com [IPv6:2607:f8b0:400d:c01::22d]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id DA37E217E for ; Sun, 20 Jul 2014 22:09:56 +0000 (UTC) Received: by mail-qc0-f173.google.com with SMTP id c9so4951317qcz.4 for ; Sun, 20 Jul 2014 15:09:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=AKrk450a/o3SDC6JVyTLz14QDmxqR3Rtzhk+Iuu9ZP4=; b=g2p/d+mx8yw/+vgnek2mKf3+9MoeSuQ0L92yTC3LGULOyTU4kiBxx8OtSpPgGYMX2d 3EKQ/uNgADRc/EbBSszhh/yPOvwuxrFqiO7vU3BTMK5kFR25W1ESf9dpe+2mtC0eWsmV RilpF5viXQL3FLgtF0D3UaoEbVeSRdmnajICah9jsF3/thEVRFHPqehqGsbqEIsyKxdE G3+01vRoDo5lnlmTX2ygmLn1/qJx3/nwaMRwrUrP99mLuoHS3Wa6MVEW/kjKxBI6T8EL yhCuOZNp/MC/fLkgpRHBOLq3JtOblRmnVrK2ZkCPKWb6ftBv4EfWkV+280k4OLECgNa9 ySgA== MIME-Version: 1.0 X-Received: by 10.224.71.198 with SMTP id i6mr35814332qaj.76.1405894195870; Sun, 20 Jul 2014 15:09:55 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.224.1.6 with HTTP; Sun, 20 Jul 2014 15:09:55 -0700 (PDT) In-Reply-To: <20140720201655.GA70545@icarus.home.lan> References: <20140720062413.GA56318@icarus.home.lan> <97EA8E571E634DBBAA70F7AA7F0DE97C@multiplay.co.uk> <20140720173524.GA67065@icarus.home.lan> <20140720201655.GA70545@icarus.home.lan> Date: Sun, 20 Jul 2014 15:09:55 -0700 X-Google-Sender-Auth: FnPEna_Kwabv726m3dXZWIffBQ4 Message-ID: Subject: Re: Consistently "high" CPU load on 10.0-STABLE From: Adrian Chadd To: Jeremy Chadwick Content-Type: text/plain; charset=UTF-8 Cc: FreeBSD Stable Mailing List , Steven Hartland X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 20 Jul 2014 22:09:57 -0000 hi, it looks like a whole lot of things are waking up at the same time: * dhcpd * em * usb devices So, do you have some shared interrupts going on here? That seems to be what's causing things to all wake up all at once. -a