Major performance decrease in 2015 Q1

5 posts, 0 answers
  1. Andreas
    Andreas avatar
    137 posts
    Member since:
    May 2008

    Posted 09 Jun 2015 Link to this post

    Hi,

    We use the RadGauge a lot, but lately we had some real performance issues, mostly on tablets (iPad)!

    When reverting back to a telerik version prior to 2015 Q1 (2014 something), all issues are gone...

    In a simple example:

    <%@ Page Language="vb" AutoEventWireup="false" CodeBehind="gauge.aspx.vb" Inherits="TestaTredjepartWeb.gauge" %>
     
    <!DOCTYPE html>
     
    <head runat="server">
        <title></title>
    </head>
    <body>
        <form id="form1" runat="server">
            <script type="text/javascript">
                window.__dt = new Date();
                setTimeout(function () { alert((new Date()) - window.__dt - 10); }, 10);
            </script>
            <asp:ScriptManager ID="s" runat="server">
            </asp:ScriptManager>
            <div>
                <asp:Button ID="btn" runat="server" />
                <telerik:RadRadialGauge ID="rrg" runat="server" Transitions="false">
                    <Pointer Value="44" Color="Red" Cap-Color="Yellow"></Pointer>
                    <Scale>
                        <Labels Position="Outside" Color="Gray" Font="normal 10px Segoe UI, Tahoma, Helvetica" />
     
                        <Ranges>
                            <telerik:GaugeRange From="0" To="40" Color="Red" />
                            <telerik:GaugeRange From="40" To="90" Color="Yellow" />
                            <telerik:GaugeRange From="90" To="200" Color="Green" />
                        </Ranges>
                    </Scale>
                </telerik:RadRadialGauge>
            </div>
        </form>
    </body>
    </html>
     

    When running this sample on a desktop computer, the alert says about 30ms with 2014 version and 100ms with any 2015 version, on an iPad it says 150ms with 2014 version and 600ms with any 2015 version.

    About 3-4 times slower!

    On some pages we have multiple gauges, which makes it even worse...
    The 2015 Q2 Beta is also slow...

    Regards
    Andreas

     

  2. Danail Vasilev
    Admin
    Danail Vasilev avatar
    1492 posts

    Posted 10 Jun 2015 Link to this post

    Hi Andreas,

    The mentioned issue is actually related to the one that has already been logged here - http://feedback.telerik.com/Project/108/Feedback/Details/152404

    If everything is fixed the issue may be fixed within one of our next releases.

    Regards,
    Danail Vasilev
    Telerik
    Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Feedback Portal and vote to affect the priority of the items
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  4. Andreas
    Andreas avatar
    137 posts
    Member since:
    May 2008

    Posted 11 Jun 2015 in reply to Danail Vasilev Link to this post

    Hi,

    Is there any workaround until then, because this really breaks our entire application on iPads and other slower clients?
    Going back to 2014 version is not an option since we have other things that are dependent on the 2015 version...

    Regards
    Andreas

  5. Andreas
    Andreas avatar
    137 posts
    Member since:
    May 2008

    Posted 18 Jun 2015 Link to this post

    Any workaround?
  6. Danail Vasilev
    Admin
    Danail Vasilev avatar
    1492 posts

    Posted 22 Jun 2015 Link to this post

    Hi Andreas,

    I am sorry to say that currently I cannot offer a possible workaround due to the complexity of the issue. You can, however, track the status of the item for any updates on the matter.

    Regards,
    Danail Vasilev
    Telerik
    Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Feedback Portal and vote to affect the priority of the items
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