[CLOSED] RemoteSort for buffered store

Page 3 of 5 FirstFirst 12345 LastLast
  1. #21
    We just use the example you posted in this thread, and added 20 (30 total) more columns. The time it takes the data to show up is about 12 seconds, which is about three times for the data to show up when there are only 10 columns (i.e., 4 seconds).

    Yes we do databinding on the server side.
  2. #22
    We just tested with the latest from SVN and it makes no difference at all. Do you think you can fix it on your side? It seems that the buffering would relieve the problem, however, we need both buffered view and grouped view in order to make it work for us. Any suggestion?
  3. #23
    I think only one incorrect behaviour in v2
    Grid refreshes own view twice at initial rendering (if you don't use any proxy). We will fix it soon
    At this moment, i can sugest to set AutoLoad="false" for the store and call 'load' method manually

    I created two test cases (one for v2 and one for v1), 500 rows and 30 columns (v2 test case contains the fix are mentioned above)
    I don't see big performance degradation in v2 beside v1

    we need both buffered view and grouped view in order to make it work for us.
    It is impossible, conceptions of buffering (load records in parts by demand) and grouping (sort all records by group field and show records with group separation) are different therefore it cannot be used at one time

    Here is my test cases

    v1
    <%@ Page Language="C#" %>
    
    
    <%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
    
    
    <!DOCTYPE html>
    
    
    <html>
    <head runat="server">
        <title></title>
    
    
        <script runat="server">
            protected void Page_Load(object sender, EventArgs e)
            {
                ResourceManager.GetInstance().RegisterBeforeClientInitScript("window._start = new Date().getTime();");
                
                var data = new System.Collections.Generic.List<object>();
    
    
                for (int i = 0; i < 500; i++)
                {
                    data.Add(new { 
                        Group = i % 100,
                        Value1 = "1_" + i,
                        Value2 = "2_" + i,
                        Value3 = "3_" + i,
                        Value4 = "4_" + i,
                        Value5 = "5_" + i,
                        Value6 = "6_" + i,
                        Value7 = "7_" + i,
                        Value8 = "8_" + i,
                        Value9 = "9_" + i,
                        Value10 = "10_" + i,
                        Value11 = "11_" + i,
                        Value12 = "12_" + i,
                        Value13 = "13_" + i,
                        Value14 = "14_" + i,
                        Value15 = "15_" + i,
                        Value16 = "16_" + i,
                        Value17 = "17_" + i,
                        Value18 = "18_" + i,
                        Value19 = "19_" + i,
                        Value20 = "20_" + i,
                        Value21 = "21_" + i,
                        Value22 = "22_" + i,
                        Value23 = "23_" + i,
                        Value24 = "24_" + i,
                        Value25 = "25_" + i,
                        Value26 = "26_" + i,
                        Value27 = "27_" + i,
                        Value28 = "28_" + i,
                        Value29 = "29_" + i,
                        Value30 = "30_" + i
                    });
                }
    
    
                GridPanel1.GetStore().DataSource = data;
                GridPanel1.GetStore().DataBind();
            }
        </script>
    </head>
    <body>
        <form runat="server">
            <ext:ResourceManager runat="server" />
    
    
            <ext:GridPanel
                ID="GridPanel1"
                runat="server" 
                Width="600" 
                Height="450"
                Title="Grid" 
                Frame="true">
                <Store>
                    <ext:Store runat="server" GroupField="Group">                  
                        <Reader>
                            <ext:JsonReader>
                                <Fields>
                                    <ext:RecordField Name="Group" />
                                    <ext:RecordField Name="Value1" />
                                    <ext:RecordField Name="Value2" />
                                    <ext:RecordField Name="Value3" />
                                    <ext:RecordField Name="Value4" />
                                    <ext:RecordField Name="Value5" />
                                    <ext:RecordField Name="Value6" />
                                    <ext:RecordField Name="Value7" />
                                    <ext:RecordField Name="Value8" />
                                    <ext:RecordField Name="Value9" />
                                    <ext:RecordField Name="Value10" />
                                    <ext:RecordField Name="Value11" />
                                    <ext:RecordField Name="Value12" />
                                    <ext:RecordField Name="Value13" />
                                    <ext:RecordField Name="Value14" />
                                    <ext:RecordField Name="Value15" />
                                    <ext:RecordField Name="Value16" />
                                    <ext:RecordField Name="Value17" />
                                    <ext:RecordField Name="Value18" />
                                    <ext:RecordField Name="Value19" />
                                    <ext:RecordField Name="Value20" />
                                    <ext:RecordField Name="Value21" />
                                    <ext:RecordField Name="Value22" />
                                    <ext:RecordField Name="Value23" />
                                    <ext:RecordField Name="Value24" />
                                    <ext:RecordField Name="Value25" />
                                    <ext:RecordField Name="Value26" />
                                    <ext:RecordField Name="Value27" />
                                    <ext:RecordField Name="Value28" />
                                    <ext:RecordField Name="Value29" />
                                    <ext:RecordField Name="Value30" />
                                </Fields>
                            </ext:JsonReader>
                        </Reader>
                        <SortInfo Field="Group" Direction="ASC" />                    
                    </ext:Store>
                </Store>
                <ColumnModel runat="server">
                    <Columns>
                        <ext:Column runat="server" Header="Group" DataIndex="Group" />
                        <ext:Column runat="server" Header="Value1" DataIndex="Value1" Width="30" />
                        <ext:Column runat="server" Header="Value2" DataIndex="Value2" Width="30" />
                        <ext:Column runat="server" Header="Value3" DataIndex="Value3" Width="30" />
                        <ext:Column runat="server" Header="Value4" DataIndex="Value4" Width="30" />
                        <ext:Column runat="server" Header="Value5" DataIndex="Value5" Width="30" />
                        <ext:Column runat="server" Header="Value6" DataIndex="Value6" Width="30" />
                        <ext:Column runat="server" Header="Value7" DataIndex="Value7" Width="30" />
                        <ext:Column runat="server" Header="Value8" DataIndex="Value8" Width="30" />
                        <ext:Column runat="server" Header="Value9" DataIndex="Value9" Width="30" />
                        <ext:Column runat="server" Header="Value10" DataIndex="Value10" Width="30" />
                        <ext:Column runat="server" Header="Value11" DataIndex="Value11" Width="30" />
                        <ext:Column runat="server" Header="Value12" DataIndex="Value12" Width="30" />
                        <ext:Column runat="server" Header="Value13" DataIndex="Value13" Width="30" />
                        <ext:Column runat="server" Header="Value14" DataIndex="Value14" Width="30" />
                        <ext:Column runat="server" Header="Value15" DataIndex="Value15" Width="30" />
                        <ext:Column runat="server" Header="Value16" DataIndex="Value16" Width="30" />
                        <ext:Column runat="server" Header="Value17" DataIndex="Value17" Width="30" />
                        <ext:Column runat="server" Header="Value18" DataIndex="Value18" Width="30" />
                        <ext:Column runat="server" Header="Value19" DataIndex="Value19" Width="30" />
                        <ext:Column runat="server" Header="Value20" DataIndex="Value20" Width="30" />
                        <ext:Column runat="server" Header="Value21" DataIndex="Value21" Width="30" />
                        <ext:Column runat="server" Header="Value22" DataIndex="Value22" Width="30" />
                        <ext:Column runat="server" Header="Value23" DataIndex="Value23" Width="30" />
                        <ext:Column runat="server" Header="Value24" DataIndex="Value24" Width="30" />
                        <ext:Column runat="server" Header="Value25" DataIndex="Value25" Width="30" />
                        <ext:Column runat="server" Header="Value26" DataIndex="Value26" Width="30" />
                        <ext:Column runat="server" Header="Value27" DataIndex="Value27" Width="30" />
                        <ext:Column runat="server" Header="Value28" DataIndex="Value28" Width="30" />
                        <ext:Column runat="server" Header="Value29" DataIndex="Value29" Width="30" />
                        <ext:Column runat="server" Header="Value30" DataIndex="Value30" Width="30" />
                    </Columns>
                </ColumnModel>
                <View>                
                    <ext:GroupingView runat="server" HideGroupedColumn="true">
                        <Listeners>                                        
                            <Refresh Handler="Ext.MessageBox.notify('Refresh:', (new Date().getTime() - window._start).toString());" />
                        </Listeners>
                    </ext:GroupingView>
                </View>
            </ext:GridPanel>
        </form>
    </body>
    </html>

    v2
    <%@ Page Language="C#" %>
    
    
    <%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
    
    
    <!DOCTYPE html>
    
    
    <html>
    <head runat="server">
        <title></title>
    
    
        <script runat="server">
            protected void Page_Load(object sender, EventArgs e)
            {
                ResourceManager.GetInstance().RegisterBeforeClientInitScript("window._start = new Date().getTime();");
                
                var data = new List<object>();
    
    
                for (int i = 0; i < 500; i++)
                {
                    data.Add(new { 
                        Group = i % 100,
                        Value1 = "1_" + i,
                        Value2 = "2_" + i,
                        Value3 = "3_" + i,
                        Value4 = "4_" + i,
                        Value5 = "5_" + i,
                        Value6 = "6_" + i,
                        Value7 = "7_" + i,
                        Value8 = "8_" + i,
                        Value9 = "9_" + i,
                        Value10 = "10_" + i,
                        Value11 = "11_" + i,
                        Value12 = "12_" + i,
                        Value13 = "13_" + i,
                        Value14 = "14_" + i,
                        Value15 = "15_" + i,
                        Value16 = "16_" + i,
                        Value17 = "17_" + i,
                        Value18 = "18_" + i,
                        Value19 = "19_" + i,
                        Value20 = "20_" + i,
                        Value21 = "21_" + i,
                        Value22 = "22_" + i,
                        Value23 = "23_" + i,
                        Value24 = "24_" + i,
                        Value25 = "25_" + i,
                        Value26 = "26_" + i,
                        Value27 = "27_" + i,
                        Value28 = "28_" + i,
                        Value29 = "29_" + i,
                        Value30 = "30_" + i
                    });
                }
    
    
                GridPanel1.GetStore().DataSource = data;
                GridPanel1.GetStore().DataBind();
            }
        </script>
    </head>
    <body>
        <form runat="server">
            <ext:ResourceManager runat="server" />
    
    
            <ext:GridPanel
                ID="GridPanel1"
                runat="server" 
                Width="600" 
                Height="450"
                Title="Grid" 
                Frame="true">
                <Store>
                    <ext:Store runat="server" GroupField="Group" AutoLoad="false">                  
                        <Model>
                            <ext:Model runat="server">
                                <Fields>
                                    <ext:ModelField Name="Group" />
                                    <ext:ModelField Name="Value1" />
                                    <ext:ModelField Name="Value2" />
                                    <ext:ModelField Name="Value3" />
                                    <ext:ModelField Name="Value4" />
                                    <ext:ModelField Name="Value5" />
                                    <ext:ModelField Name="Value6" />
                                    <ext:ModelField Name="Value7" />
                                    <ext:ModelField Name="Value8" />
                                    <ext:ModelField Name="Value9" />
                                    <ext:ModelField Name="Value10" />
                                    <ext:ModelField Name="Value11" />
                                    <ext:ModelField Name="Value12" />
                                    <ext:ModelField Name="Value13" />
                                    <ext:ModelField Name="Value14" />
                                    <ext:ModelField Name="Value15" />
                                    <ext:ModelField Name="Value16" />
                                    <ext:ModelField Name="Value17" />
                                    <ext:ModelField Name="Value18" />
                                    <ext:ModelField Name="Value19" />
                                    <ext:ModelField Name="Value20" />
                                    <ext:ModelField Name="Value21" />
                                    <ext:ModelField Name="Value22" />
                                    <ext:ModelField Name="Value23" />
                                    <ext:ModelField Name="Value24" />
                                    <ext:ModelField Name="Value25" />
                                    <ext:ModelField Name="Value26" />
                                    <ext:ModelField Name="Value27" />
                                    <ext:ModelField Name="Value28" />
                                    <ext:ModelField Name="Value29" />
                                    <ext:ModelField Name="Value30" />
                                </Fields>
                            </ext:Model>
                        </Model>
                        <Sorters>
                            <ext:DataSorter Property="Group" Direction="ASC" />
                        </Sorters>
                    </ext:Store>
                </Store>
                <ColumnModel runat="server">
                    <Columns>
                        <ext:Column runat="server" Text="Group" DataIndex="Group" />
                        <ext:Column runat="server" Text="Value1" DataIndex="Value1" Flex="1" />
                        <ext:Column runat="server" Text="Value2" DataIndex="Value2" Flex="1" />
                        <ext:Column runat="server" Text="Value3" DataIndex="Value3" Flex="1" />
                        <ext:Column runat="server" Text="Value4" DataIndex="Value4" Flex="1" />
                        <ext:Column runat="server" Text="Value5" DataIndex="Value5" Flex="1" />
                        <ext:Column runat="server" Text="Value6" DataIndex="Value6" Flex="1" />
                        <ext:Column runat="server" Text="Value7" DataIndex="Value7" Flex="1" />
                        <ext:Column runat="server" Text="Value8" DataIndex="Value8" Flex="1" />
                        <ext:Column runat="server" Text="Value9" DataIndex="Value9" Flex="1" />
                        <ext:Column runat="server" Text="Value10" DataIndex="Value10" Flex="1" />
                        <ext:Column runat="server" Text="Value11" DataIndex="Value11" Flex="1" />
                        <ext:Column runat="server" Text="Value12" DataIndex="Value12" Flex="1" />
                        <ext:Column runat="server" Text="Value13" DataIndex="Value13" Flex="1" />
                        <ext:Column runat="server" Text="Value14" DataIndex="Value14" Flex="1" />
                        <ext:Column runat="server" Text="Value15" DataIndex="Value15" Flex="1" />
                        <ext:Column runat="server" Text="Value16" DataIndex="Value16" Flex="1" />
                        <ext:Column runat="server" Text="Value17" DataIndex="Value17" Flex="1" />
                        <ext:Column runat="server" Text="Value18" DataIndex="Value18" Flex="1" />
                        <ext:Column runat="server" Text="Value19" DataIndex="Value19" Flex="1" />
                        <ext:Column runat="server" Text="Value20" DataIndex="Value20" Flex="1" />
                        <ext:Column runat="server" Text="Value21" DataIndex="Value21" Flex="1" />
                        <ext:Column runat="server" Text="Value22" DataIndex="Value22" Flex="1" />
                        <ext:Column runat="server" Text="Value23" DataIndex="Value23" Flex="1" />
                        <ext:Column runat="server" Text="Value24" DataIndex="Value24" Flex="1" />
                        <ext:Column runat="server" Text="Value25" DataIndex="Value25" Flex="1" />
                        <ext:Column runat="server" Text="Value26" DataIndex="Value26" Flex="1" />
                        <ext:Column runat="server" Text="Value27" DataIndex="Value27" Flex="1" />
                        <ext:Column runat="server" Text="Value28" DataIndex="Value28" Flex="1" />
                        <ext:Column runat="server" Text="Value29" DataIndex="Value29" Flex="1" />
                        <ext:Column runat="server" Text="Value30" DataIndex="Value30" Flex="1" />
                    </Columns>
                </ColumnModel>                       
                <Features>
                    <ext:Grouping
                        runat="server"
                        HideGroupedHeader="true"
                        />
                </Features>
                <View>
                    <ext:GridView runat="server">
                        <Listeners>                    
                            <Refresh Handler="Ext.MessageBox.notify('Refresh:', (new Date().getTime() - window._start).toString());" />
                        </Listeners>
                    </ext:GridView>
                </View>
                <Listeners>
                    <Render Handler="this.store.load();" />
                </Listeners>           
            </ext:GridPanel>
        </form>
    </body>
    </html>
    Vladimir Shcheglov
    Sr. Developer
  4. #24
    Just tried your example in V2, it takes really a long time to move the scrolling bar.
    The performance is really bad.
  5. #25
    And, we didn't have this problem until we port to v2.0.
    Just tried your example in V2, it takes really a long time to move the scrolling bar.
    I see the same performance as in v1, can you confirm that both samples (v1 and v2) have the same performance?


    Vladimir Shcheglov
    Sr. Developer
  6. #26
    We are seeing a performance degradation at about 50% from v1 to v2, whereby v2 is much slower. To illustrate, we use your sample code to do the this on the same server, and v2 is definitely 50% slower to load the amount of data.
  7. #27
    Can you post times are shown both samples?
    For me, the times are comparable
    Vladimir Shcheglov
    Sr. Developer
  8. #28
    Hi,

    I played with Buffered option today and it seems we can combine grouping and buffering if load all records from the server at once
    For better result, it is required to set PageSize option of store equals or greater then records count

    Here is updated sample and it seems it works fast and grouping works correctly (however i am not sure yet that it will work correctly in all cases but i am hope)
    <%@ Page Language="C#" %>
     
     
    <%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
     
     
    <!DOCTYPE html>
     
     
    <html>
    <head runat="server">
        <title></title>
     
     
        <script runat="server">
            protected void Page_Load(object sender, EventArgs e)
            {
                ResourceManager.GetInstance().RegisterBeforeClientInitScript("window._start = new Date().getTime();");
                 
                var data = new List<object>();
     
     
                for (int i = 0; i < 500; i++)
                {
                    data.Add(new { 
                        Group = i / 50,
                        Value1 = "1_" + i,
                        Value2 = "2_" + i,
                        Value3 = "3_" + i,
                        Value4 = "4_" + i,
                        Value5 = "5_" + i,
                        Value6 = "6_" + i,
                        Value7 = "7_" + i,
                        Value8 = "8_" + i,
                        Value9 = "9_" + i,
                        Value10 = "10_" + i,
                        Value11 = "11_" + i,
                        Value12 = "12_" + i,
                        Value13 = "13_" + i,
                        Value14 = "14_" + i,
                        Value15 = "15_" + i,
                        Value16 = "16_" + i,
                        Value17 = "17_" + i,
                        Value18 = "18_" + i,
                        Value19 = "19_" + i,
                        Value20 = "20_" + i,
                        Value21 = "21_" + i,
                        Value22 = "22_" + i,
                        Value23 = "23_" + i,
                        Value24 = "24_" + i,
                        Value25 = "25_" + i,
                        Value26 = "26_" + i,
                        Value27 = "27_" + i,
                        Value28 = "28_" + i,
                        Value29 = "29_" + i,
                        Value30 = "30_" + i
                    });
                }
     
     
                GridPanel1.GetStore().DataSource = data;
                GridPanel1.GetStore().DataBind();
            }
        </script>
    </head>
    <body>
        <form runat="server">
            <ext:ResourceManager runat="server" />
     
     
            <ext:GridPanel
                ID="GridPanel1"
                runat="server"
                Width="600"
                Height="450"
                Title="Grid"
                Frame="true">
                <Store>
                    <ext:Store runat="server" GroupField="Group" Buffered="true" PageSize="500">                  
                        <Model>
                            <ext:Model runat="server">
                                <Fields>
                                    <ext:ModelField Name="Group" />
                                    <ext:ModelField Name="Value1" />
                                    <ext:ModelField Name="Value2" />
                                    <ext:ModelField Name="Value3" />
                                    <ext:ModelField Name="Value4" />
                                    <ext:ModelField Name="Value5" />
                                    <ext:ModelField Name="Value6" />
                                    <ext:ModelField Name="Value7" />
                                    <ext:ModelField Name="Value8" />
                                    <ext:ModelField Name="Value9" />
                                    <ext:ModelField Name="Value10" />
                                    <ext:ModelField Name="Value11" />
                                    <ext:ModelField Name="Value12" />
                                    <ext:ModelField Name="Value13" />
                                    <ext:ModelField Name="Value14" />
                                    <ext:ModelField Name="Value15" />
                                    <ext:ModelField Name="Value16" />
                                    <ext:ModelField Name="Value17" />
                                    <ext:ModelField Name="Value18" />
                                    <ext:ModelField Name="Value19" />
                                    <ext:ModelField Name="Value20" />
                                    <ext:ModelField Name="Value21" />
                                    <ext:ModelField Name="Value22" />
                                    <ext:ModelField Name="Value23" />
                                    <ext:ModelField Name="Value24" />
                                    <ext:ModelField Name="Value25" />
                                    <ext:ModelField Name="Value26" />
                                    <ext:ModelField Name="Value27" />
                                    <ext:ModelField Name="Value28" />
                                    <ext:ModelField Name="Value29" />
                                    <ext:ModelField Name="Value30" />
                                </Fields>
                            </ext:Model>
                        </Model>
                        <Sorters>
                            <ext:DataSorter Property="Group" Direction="ASC" />
                        </Sorters>
                    </ext:Store>
                </Store>
                <ColumnModel runat="server">
                    <Columns>
                        <ext:Column runat="server" Text="Group" DataIndex="Group" />
                        <ext:Column runat="server" Text="Value1" DataIndex="Value1" Flex="1" />
                        <ext:Column runat="server" Text="Value2" DataIndex="Value2" Flex="1" />
                        <ext:Column runat="server" Text="Value3" DataIndex="Value3" Flex="1" />
                        <ext:Column runat="server" Text="Value4" DataIndex="Value4" Flex="1" />
                        <ext:Column runat="server" Text="Value5" DataIndex="Value5" Flex="1" />
                        <ext:Column runat="server" Text="Value6" DataIndex="Value6" Flex="1" />
                        <ext:Column runat="server" Text="Value7" DataIndex="Value7" Flex="1" />
                        <ext:Column runat="server" Text="Value8" DataIndex="Value8" Flex="1" />
                        <ext:Column runat="server" Text="Value9" DataIndex="Value9" Flex="1" />
                        <ext:Column runat="server" Text="Value10" DataIndex="Value10" Flex="1" />
                        <ext:Column runat="server" Text="Value11" DataIndex="Value11" Flex="1" />
                        <ext:Column runat="server" Text="Value12" DataIndex="Value12" Flex="1" />
                        <ext:Column runat="server" Text="Value13" DataIndex="Value13" Flex="1" />
                        <ext:Column runat="server" Text="Value14" DataIndex="Value14" Flex="1" />
                        <ext:Column runat="server" Text="Value15" DataIndex="Value15" Flex="1" />
                        <ext:Column runat="server" Text="Value16" DataIndex="Value16" Flex="1" />
                        <ext:Column runat="server" Text="Value17" DataIndex="Value17" Flex="1" />
                        <ext:Column runat="server" Text="Value18" DataIndex="Value18" Flex="1" />
                        <ext:Column runat="server" Text="Value19" DataIndex="Value19" Flex="1" />
                        <ext:Column runat="server" Text="Value20" DataIndex="Value20" Flex="1" />
                        <ext:Column runat="server" Text="Value21" DataIndex="Value21" Flex="1" />
                        <ext:Column runat="server" Text="Value22" DataIndex="Value22" Flex="1" />
                        <ext:Column runat="server" Text="Value23" DataIndex="Value23" Flex="1" />
                        <ext:Column runat="server" Text="Value24" DataIndex="Value24" Flex="1" />
                        <ext:Column runat="server" Text="Value25" DataIndex="Value25" Flex="1" />
                        <ext:Column runat="server" Text="Value26" DataIndex="Value26" Flex="1" />
                        <ext:Column runat="server" Text="Value27" DataIndex="Value27" Flex="1" />
                        <ext:Column runat="server" Text="Value28" DataIndex="Value28" Flex="1" />
                        <ext:Column runat="server" Text="Value29" DataIndex="Value29" Flex="1" />
                        <ext:Column runat="server" Text="Value30" DataIndex="Value30" Flex="1" />
                    </Columns>
                </ColumnModel>                       
                <Features>
                    <ext:Grouping
                        runat="server"
                        HideGroupedHeader="true"
                        />
                </Features>
                <View>
                    <ext:GridView runat="server" TrackOver="false" >
                        <Listeners>                    
                            <%--<Refresh Handler="alert((new Date().getTime() - window._start).toString());" />--%>
                        </Listeners>
                    </ext:GridView>
                </View>                   
            </ext:GridPanel>
        </form>
    </body>
    </html>
    Vladimir Shcheglov
    Sr. Developer
  9. #29
    This is back to what I had before.
    http://forums.ext.net/showthread.php...ll=1#post79687
  10. #30
    This is back to what I had before.
    http://forums.ext.net/showthread.php...ll=1#post79687
    Do you see the same problem in my sample? The sample is posted has 50 records per group. Can you change the sample to reproduce the issue?
    Vladimir Shcheglov
    Sr. Developer
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