From owner-freebsd-questions@FreeBSD.ORG Mon Jul 26 05:48:45 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4F6CD106566C for ; Mon, 26 Jul 2010 05:48:45 +0000 (UTC) (envelope-from lisen1001@gmail.com) Received: from mail-px0-f182.google.com (mail-px0-f182.google.com [209.85.212.182]) by mx1.freebsd.org (Postfix) with ESMTP id 390568FC13 for ; Mon, 26 Jul 2010 05:48:45 +0000 (UTC) Received: by pxi8 with SMTP id 8so5104839pxi.13 for ; Sun, 25 Jul 2010 22:48:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from :user-agent:mime-version:to:subject:content-type :content-transfer-encoding; bh=qxP+ZP1wYTbD/Ifz6Cxt3wtznuDUilG0DDoicNHQHPI=; b=BSgGY2nUOINP0HgKu1zC9+d2+NyPeiG2L0gHwrhoepgcSrkN1jHLH1AXl9jOFlzQbP Otlde7s2XYeB85R2zcEl/SjZQrCuP6JegLSC8EVbKCLVi7kEfG7JszEcayeEW8RTF0J9 qW0zNIG7fIGS3TAoNJ4Kh6PJmWDPCTrIwpVgg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject :content-type:content-transfer-encoding; b=VNiGMlBbrh+cbfylY6HlqmfNCgA9fuBPTkEiVEdvg+NWLFvX+0IHSnCIjUb+Hb39j5 5ARThBqfoVHHxDiLXHr39MxLAIO6xMiiTEgIfQCzRQGjjBNvBq2jP0tuP06TPjt0VKqq 8u1rDXZZoXhW11QdeKGEqMiKVi8/fWnOxVhLg= Received: by 10.114.80.10 with SMTP id d10mr10712059wab.216.1280123324478; Sun, 25 Jul 2010 22:48:44 -0700 (PDT) Received: from [192.168.24.2] ([218.107.55.253]) by mx.google.com with ESMTPS id d38sm5972945wam.20.2010.07.25.22.48.42 (version=SSLv3 cipher=RC4-MD5); Sun, 25 Jul 2010 22:48:43 -0700 (PDT) Message-ID: <4C4D21B8.3010608@gmail.com> Date: Mon, 26 Jul 2010 13:48:40 +0800 From: Jason User-Agent: Mozilla/5.0 (X11; U; Linux i686; zh-CN; rv:1.9.1.11) Gecko/20100711 Lightning/1.0b1 Thunderbird/3.0.6 MIME-Version: 1.0 To: bsd Content-Type: text/plain; charset=GB2312 Content-Transfer-Encoding: 7bit Subject: What is the meaning of this warn? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 26 Jul 2010 05:48:45 -0000 HI,ALL: My freebsd server offer service to thousands of clients. I found lots of warning in the /var/log/message like this :"Approaching the limit on PV entries, consider increasing either the vm.pmap.shpgperproc or the vm.pmap.pv_entry_max tunable" My question is : 1.what is the meaning of PV? 2.Although there are lots of this warning,my server works still well. Could someone explain the meaning of this warning ?