Question

I have performance issue in asp.net page between InitializeCulture and Page_PreInit event. When I override DeterminePostBackMode() I found, that problem is in base.DeterminePostBackMode();

Usually takes a few miliseconds, but sometimes (about 5x per day) it takes very slow (range: few seconds – few minutes).

    protected override System.Collections.Specialized.NameValueCollection DeterminePostBackMode()
    {
        // start measure time with log tool

        try
        {
                System.Collections.Specialized.NameValueCollection coll = base.DeterminePostBackMode();
                return coll;
        }
        catch (Exception ex)
        {
                // log exception with log tool

                throw ex;
        }
        finally
        {
                // end measure time with log tool
        }
}

I use DevExpress components, IIS 7.5, Internet Explorer 8

Any idea what is wrong? How troubleshoot DeterminePostBackMode() ?

Thanks, Pavel

Answer 1

I found in httperr log file for HTTP API this error: Timer_EntityBody … Internet Explorer send header and body separately. So DeterminePostBackMode() wait for body.

I don´t know what is wrong with body, maybe network problems or something else.