IMPROVING .NET APPLICATION PERFORMANCE AND SCALABILITY: Corrections and Comments (843327)

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Page 150, Chapter 4: Architecture and Design Review of a .NET Application for Performance and Scalability, Section: Do You Have Secure Communication Requirements?, Sub-section: Do you use the right encryption algorithm and key size?, Second last sentence
http://msdn.microsoft.com/library/en-us/dnpag/html/scalenetchapt04.asp

Change:
Asymmetric encryption provides improved security but has a much greater performance impact.

To:
Asymmetric encryption provides improved security but has a greater negative impact on performance.


Page 317, Chapter 6: Improving ASP.NET Performance, Section: String Management, Last sentence
http://msdn.microsoft.com/library/en-us/dnpag/html/scalenetchapt06.asp

Change:
HttpTextWriter

To:
HtmlTextWriter


Page 854, Checklist: ASP.NET Performance, Section: String Management, 3rd row in the table
http://msdn.microsoft.com/library/en-us/dnpag/html/scalenetcheck03.asp

Change:
HttpTextWriter

To:
HtmlTextWriter


Page 869, Checklist: Managed Code Performance, Section: Native Image Generator (Ngen.exe), 2 rows added to the table
http://msdn.microsoft.com/library/en-us/dnpag/html/scalenetcheck06.asp

Add following 2 rows at the end of the table:

• Install assemblies in the GAC if you want to use NGEN to get the best performance.
• A setup application for an update of a library assembly should run the 'Ngen.exe update' command.

Page 924, How To: Page Records in .NET Applications, Section: User Specific Records, 2nd Code Snippet in this section
http://msdn.microsoft.com/library/en-us/dnpag/html/scalenethowto05.asp

Change:

CREATE PROCEDURE UserPaging
(
@currentPage int = 1, @pageSize int =10
)
AS
DECLARE @Out int, @rowsToRetrieve int, @SQLSTRING nvarchar(1000)
SET @rowsToRetrieve = (@pageSize * @currentPage)
SET NOCOUNT ON
SET @SQLSTRING = N' SELECT TOP ' + CAST(@pageSize as varchar(10)) +
'CustomerID,CompanyName,ContactName,ContactTitle
FROM (SELECT TOP ' + CAST(@rowsToRetrieve as varchar(10)) +
'CustomerID,CompanyName,ContactName,ContactTitle FROM Customers as T1
ORDER BY contactname DESC)
AS T2 ORDER BY contactname ASC'
EXEC(@SQLSTRING)
RETURN
GO

To:

CREATE PROCEDURE UserPaging
(
  @currentPage int = 1, @pageSize int =10
)
AS
  DECLARE @Out int, @rowsToRetrieve int, @SQLSTRING nvarchar(1000)
 
  SET @rowsToRetrieve = (@pageSize * @currentPage)
 
  SET NOCOUNT ON
  SET @SQLSTRING = N'select CustomerID,CompanyName,ContactName,ContactTitle from ( SELECT TOP '+ CAST(@pageSize as varchar(10)) + 'CustomerId,CompanyName,ContactName,ContactTitle from (SELECT TOP ' + CAST(@rowsToRetrieve as varchar(10)) + 
      'CustomerID,CompanyName,ContactName,ContactTitle 
    FROM (SELECT TOP ' + CAST(@rowsToRetrieve as varchar(10)) + 
        'CustomerID,CompanyName,ContactName,ContactTitle FROM Customers as T1 
         ORDER BY contactname) AS T2 ORDER BY contactname DESC ) AS T3) As T4 ORDER BY contactname ASC'
 
  EXEC(@SQLSTRING)
  RETURN
  GO

Page 967, How To: Submit and Poll for Long-Running Tasks, Section: Implement the Callback Method, Last code line in this section
http://msdn.microsoft.com/library/en-us/dnpag/html/scalenethowto08.asp

Change:
BeginLongRunningTask(ar)

To:
EndLongRunningTask(ar)


Page 997, How To: Use ACT to Test Performance and Scalability, Section: ViewState, Point 5
http://msdn.microsoft.com/library/en-us/dnpag/html/scalenethowto10.asp

Change:
viewst

To:
strViewState

Also in various places in this section the term "STRVIEWSTATE" is written in various forms. The correct form is strViewState