烈日下跪求..

运行这个页面CPU占用一开始就达到20%,内存也会慢慢增加，sieve测试每请求一次dom节点会增加40个..请问有什么优化方案？或者解决这个问题的方案吗?
3Q
代码如下..<%@ Page Language="C#" AutoEventWireup="true" CodeFile="TradeShow1.aspx.cs" Inherits="TankManage_TradeShow1"
    UICulture="en" %><%Response.Expires = 0; %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <link href="../Style/Trade.css" rel="stylesheet" type="text/css" />
    <script src="../Js/jquery-1.4.2.min.js" type="text/javascript"></script>
</head>
<body style="background-color: #deecf9;">
    <form id="form1" runat="server">
    <input id="status" type="hidden" runat="server" />
    <div style="padding-top: 3px;">
        <div id="Show" style="background-color: #deecf9; padding: 0px; margin: 0px; height: auto;">
            <div id="data" style="width: 2600px; border: solid 1px #deecf9; text-align: left;
                margin-top: -2px; padding-left: 3px;">
                <div id="head" style="width: 2600px; text-align: left;">
                    <asp:Label ID="WPID" class="b" runat="server" Text="序号"></asp:Label>
                    <asp:Label ID="NZN" class="b" runat="server" Text="枪号"></asp:Label>
                    <asp:Label ID="OilName" class="e" runat="server" Text="油品名称"></asp:Label>
                    <asp:Label ID="V_TOT" class="d" runat="server" Text="升累计"></asp:Label>
                    <asp:Label ID="AMN" class="d" runat="server" Text="数额"></asp:Label>
                    <asp:Label ID="VOL" class="d" runat="server" Text="升数"></asp:Label>
                    <asp:Label ID="PRC" class="c" runat="server" Text="成交价格"></asp:Label>
                    <asp:Label ID="T_TYPE" class="c" runat="server" Text="交易类型"></asp:Label>
                    <asp:Label ID="POS_TTC" class="d" runat="server" Text="交易记录号"></asp:Label>
                    <asp:Label ID="ASN" class="g" runat="server" Text="卡应用号"></asp:Label>
                    <asp:Label ID="BAL" class="e" runat="server" Text="余额"></asp:Label>
                    <asp:Label ID="UNIT1" class="c" runat="server" Text="结算单位"></asp:Label>
                    <asp:Label ID="UNIT2" class="c" runat="server" Text="结算方式"></asp:Label>
                    <asp:Label ID="TAC" class="e" runat="server" Text="电子签名"></asp:Label>
                    <asp:Label ID="CTC" class="b" runat="server" Text="CTC"></asp:Label>
                    <asp:Label ID="InTIME" class="f" runat="server" Text="PC机时间"></asp:Label>
                    <asp:Label ID="TIME" class="f" runat="server" Text="油机时间"></asp:Label>
                    <asp:Label ID="EMP" class="b" runat="server" Text="员工号"></asp:Label>
                    <asp:Label ID="VER" class="b" runat="server" Text="版本"></asp:Label>
                    <asp:Label ID="GMAC" class="d" runat="server" Text="解灰认证码"></asp:Label>
                    <asp:Label ID="DS" class="e" runat="server" Text="扣款来源"></asp:Label>
                    <asp:Label ID="C_TYPE" class="e" runat="server" Text="卡类型"></asp:Label>
                    <asp:Label ID="PSAM_TAC" class="d" runat="server" Text="灰锁签名"></asp:Label>
                    <asp:Label ID="PSAM_ASN" class="g" runat="server" Text="PSAM应用号"></asp:Label>
                    <asp:Label ID="PSAM_TID" class="e" runat="server" Text="PSAM编号"></asp:Label>
                    <asp:Label ID="PSAM_TTC" class="d" runat="server" Text="PSAM-TTC"></asp:Label>
                    <asp:Label ID="T_MAC" class="h" runat="server" Text="终端数据认证码"></asp:Label>
                </div>
            </div>
            <div id="ShowData" style="width: 2600px;">
            </div>
        </div>
    </div>
    <script type="text/javascript">
        var clearData;
        window.clearInterval(clearData);
        clearData = window.setInterval('bind()', 1000);
        var row;
        function bind() {
            $.getJSON("TradeData1.aspx", function(data) {
                var j = $("#ShowData");
                $("#ShowData")[0].innerHTML = "";
                $.each(data, function(index, item) { //index为索引,item为对象
                    row = $("#data").clone();
                    row.find("#WPID").text(index + 1);
                    row.find("#NZN").text(item['NZN']);
                    row.find("#G_CODE").text(item['G_CODE']);
                    row.find("#BAL").text(item['BAL']);
                    row.find("#AMN").text(item['AMN']);
                    row.find("#CTC").text(item['CTC']);
                    row.find("#TAC").text(item['TAC']);
                    row.find("#GMAC").text(item['GMAC']);
                    row.find("#PSAM_TAC").text(item['PSAM_TAC']);
                    row.find("#PSAM_TID").text(item['PSAM_TID']);
                    row.find("#PSAM_ASN").text(item['PSAM_ASN']);
                    row.find("#UNIT1").text(item['UNIT1']);
                    row.find("#UNIT2").text(item['UNIT2']);
                    row.find("#PSAM_TTC").text(item['PSAM_TTC']);
                    row.find("#DS").text(item['DS']);
                    row.find("#C_TYPE").text(item['C_TYPE']);
                    row.find("#VER").text(item['VER']);
                    row.find("#ASN").text(item['ASN']);
                    row.find("#TIME").text(item['TIME']);
                    row.find("#VOL").text(item['VOL']);
                    row.find("#PRC").text(item['PRC']);
                    row.find("#EMP").text(item['EMP']);
                    row.find("#V_TOT").text(item['V_TOT']);
                    row.find("#RFU").text(item['RFU']);
                    row.find("#T_MAC").text(item['T_MAC']);
                    row.find("#OilName").text(item['OilName']);
                    row.find("#InTIME").text(item['InTIME']);
                    row.find("#POS_TTC").text(item['POS_TTC']);
                    row.find("#T_TYPE").text(item['T_TYPE']);
                    row.appendTo("#ShowData"); //添加到模板的容器中
                });
                row="";
            });
        }
    </script>
    </form>
</body>
</html>

解决方案 »

  1.   

    <asp:Label ID="T_MAC" class="h" runat="server" Text="终端数据认证码"></asp:Label>
    别用这么多label啊！改成html的
      

  2.   

    请求DOM节点CPU占用率高?那是用户的电脑在出力,没多大关系.
      

  3.   

    window.clearInterval(clearData);
    你这个关闭不了。每1秒钟就执行一次bind()函数
      

  4.   

    TradeData1.aspx 这个页面在进行返回json数据时，
    应该在进行数据的读取操作，加上你每隔一秒就进行操作，消耗的资源比较高