From owner-freebsd-current@FreeBSD.ORG Thu Apr 28 08:15:32 2011 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 54D0B106566C; Thu, 28 Apr 2011 08:15:32 +0000 (UTC) (envelope-from mavbsd@gmail.com) Received: from mail-bw0-f54.google.com (mail-bw0-f54.google.com [209.85.214.54]) by mx1.freebsd.org (Postfix) with ESMTP id 4B6BD8FC18; Thu, 28 Apr 2011 08:15:30 +0000 (UTC) Received: by bwz12 with SMTP id 12so2981528bwz.13 for ; Thu, 28 Apr 2011 01:15:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:sender:message-id:date:from:user-agent :mime-version:to:cc:subject:references:in-reply-to :x-enigmail-version:content-type:content-transfer-encoding; bh=lHmnK0QX5SFVlkugZaF9kKsu7nJnCPCN+j/2OyIg4pY=; b=Jtk7Mbob3gO85kiWwE8qe+LfVtVQXNSFLuWVwCcPVfo8Fbqi/8pLBIppUsb0F4XgOs 659fYDKWyJtCa/4L+TLRL/dFR1+acnc6KvKqAYZTkQiimF/Saw7Qpbi7BoRwX74fUA8q o38viXnimU+CiAoAJDwQsXJcTZU0ur29nlgsE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=sender:message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:x-enigmail-version:content-type :content-transfer-encoding; b=H9uFztDxLbrR/02h4XA9cgdLQJLRouZrS6PVupuJhnSWZxmvrrClwclqQMZF/47DGc 043a/MX9YMk6qPk8zn2BGdaZxklfFeh6P5ZWOt2i+JV1MAvMIJ5iUlobpgQDL3maCk2x a1N5f/wqjazZT/wqUTxnp+6IZXFg5Ut6VZpQw= Received: by 10.204.126.148 with SMTP id c20mr2871481bks.87.1303978529911; Thu, 28 Apr 2011 01:15:29 -0700 (PDT) Received: from mavbook2.mavhome.dp.ua (pc.mavhome.dp.ua [212.86.226.226]) by mx.google.com with ESMTPS id d11sm859439bka.19.2011.04.28.01.15.28 (version=SSLv3 cipher=OTHER); Thu, 28 Apr 2011 01:15:29 -0700 (PDT) Sender: Alexander Motin Message-ID: <4DB92215.2060501@FreeBSD.org> Date: Thu, 28 Apr 2011 11:15:17 +0300 From: Alexander Motin User-Agent: Thunderbird 2.0.0.23 (X11/20091212) MIME-Version: 1.0 To: Julian Elischer References: <4DB620CB.50302@FreeBSD.org> <20110426103741.GA25031@freebsd.org> <4DB8AA4B.1070502@FreeBSD.org> <4DB8F833.7090604@FreeBSD.org> <4DB92143.5010108@freebsd.org> In-Reply-To: <4DB92143.5010108@freebsd.org> X-Enigmail-Version: 0.96.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Alexander Best , Doug Barton , current@freebsd.org, Steve Wills Subject: Re: responsiveness during IO tasks X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Thu, 28 Apr 2011 08:15:32 -0000 Julian Elischer wrote: >> Doug Barton wrote: >> No problem, just let's hunt things down. I'll wait for that larger post. >> In meantime, if it is related to eventtimers, it would be good to >> collect more detailed information. You could try to make timer run >> during idle (kern.eventtimer.idletick). You could try to switch timer >> from one-shot to periodic mode (kern.eventtimer.periodic). You could >> also try to switch to another timer (kern.eventtimer.timer). > > kern.eventtimer.periodic needs to be disabled to run 9.x on xen > (as of a few months ago) Yes, but it needs to be enabled (it is disabled by default). I remember about it and going to experiment with it nearest time. -- Alexander Motin