ASP.Net page methods execution time monitoring - asp.net

Question

could anybody advice me, are there any approaches to calculate the methods execution time in asp.net page?
ASP.Net Trace doesn't suit me since it ignores ajax partial postbacks though just they are the tight place.
I have the page event which for some unknown reason executes slowly. Since the logic and event execution chain is rather complicated, I still unable to merely determine the culprit in debugger.
I'd like to measure the execution time of each method throughout the page, but I still see no way but insert redundant code lines (like timeBegin = DateTime.Now.... timeEnd=DateTime.Now = timeBegin etc) in the beginning and ending of each method. It seems to be ugly approach, does anybody know how to do it automatically? Are there tools which measure the methods execution time available?

Answer 1

I am not 100% sure the below works in all cases. So far it does though. Note that Context.Session.Item("CURRENT_WEB_USER") is where I store the current user, and is therefore not readily available as part of the asp.net session variables.
The code hereunder is in replacement of Global.aspx that allows both full page timing and timing of developer code.
Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
End Sub
Sub Application_End(ByVal sender As Object, ByVal e As EventArgs)
End Sub
Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)
End Sub
Sub Session_Start(ByVal sender As Object, ByVal e As EventArgs)
End Sub
Sub Session_End(ByVal sender As Object, ByVal e As EventArgs)
End Sub
Sub Application_AcquireRequestState(sender As Object, e As System.EventArgs)
If HttpContext.Current Is Nothing Then Return
If HttpContext.Current.Session Is Nothing Then Return
If TypeOf HttpContext.Current.CurrentHandler Is Page Then
If Not Context.Items.Contains("Request_Start_Time") Then
Dim MyPage As Page = HttpContext.Current.CurrentHandler
AddHandler MyPage.Init, AddressOf PageInitEncountered
AddHandler MyPage.Unload, AddressOf PageUnloadEncountered
Context.Items.Add("Request_Start_Time", DateTime.Now)
Dim User As String = Context.Session.Item("CURRENT_WEB_USER")
Context.Items.Add("Request_User", User )
End If
End If
End Sub
Sub Application_ReleaseRequestState(sender As Object, e As System.EventArgs)
If HttpContext.Current Is Nothing Then Return
If TypeOf Context.CurrentHandler Is Page Then
Dim Page As Page = Context.CurrentHandler
Dim StartDate As Date = Context.Items("Request_Start_Time") : If StartDate = Nothing Then Return
Dim EndDate As Date = Now
Dim StartProc As Date = Context.Items("Page_Init")
Dim EndProc As Date = Context.Items("Page_Unload")
Dim User As String = Context.Items("Request_User")
LogEntry(StartDate, EndDate, StartProc, EndProc, User, Context.Request.Url.ToString)
End If
End Sub
Public Sub PageInitEncountered(sender As Object, e As System.EventArgs)
Context.Items.Add("Page_Init", DateTime.Now)
End Sub
Public Sub PageUnloadEncountered(sender As Object, e As System.EventArgs)
Context.Items.Add("Page_Unload", DateTime.Now)
End Sub
Public Sub LogEntry(StartDate As Date, EndDate As Date, StartProc As Date, EndProc As Date, User As String, PageURL As String)
System.Diagnostics.Debug.WriteLine(" (" & LogEntry.RequestMs & " - " & LogEntry.DurationMs & ") (" & User & ") " & PageURL)
End Sub

Answer 2

This may not be what you are looking for, but RedGate has a product called Performance Profiler that does exactly that. They do have a 15 day trial so you can even download it and try it out on your current issue. IMHO, it's worth every penny.

Answer 3

You can use asp.net performance counters and other things also. But that will not measure a page speed but they will measure a over all application performance.