From owner-freebsd-questions@FreeBSD.ORG Sun Jul 25 03:49:27 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 8C1E0106566C for ; Sun, 25 Jul 2010 03:49:27 +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 8E85A8FC0C for ; Sun, 25 Jul 2010 03:49:27 +0000 (UTC) Received: by pxi8 with SMTP id 8so4851779pxi.13 for ; Sat, 24 Jul 2010 20:49:26 -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=BuZjK3yV6TxiI53JuZ+FGfMl4IH/sTCHVLSZysNqpc3YVplhAT2V9tEWCdxpYE0+vn C6emAop7fPDBzp5t7UVe/Wc2UBWYkBJuDEJjAK5CDNtpwGmt5C1mAKDywy9ofz5ZiC1C EJ6saQyVtzaGJGiNIfYeySgXC/m5ABrOvKJPI= 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=AmSiiIay+14u8WqRboEJm/9dma8MIYjlBOLIYlIm7Ay3gZ4HX+9tQKzrhC6fuwb0iK YyOT2vufOo2o2oktcb9KAV8huwIa2aoS2X9tYAOIVPMGr+DA4CN71BjShTzZVzWpWYTp 8i0i+eVh0OdlBsG2bqJrz+aphds1gn+bKXG64= Received: by 10.114.137.7 with SMTP id k7mr5392441wad.128.1280029766790; Sat, 24 Jul 2010 20:49:26 -0700 (PDT) Received: from [192.168.24.2] ([218.107.55.253]) by mx.google.com with ESMTPS id c10sm3729249wam.13.2010.07.24.20.49.24 (version=SSLv3 cipher=RC4-MD5); Sat, 24 Jul 2010 20:49:26 -0700 (PDT) Message-ID: <4C4BB441.2040103@gmail.com> Date: Sun, 25 Jul 2010 11:49:21 +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's 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: Sun, 25 Jul 2010 03:49:27 -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 ?