FIX: Slow performance when you render a report that returns a long string of text in SSRS 2008 R2 if the text contains no carriage return characters

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Article ID: 2559662 - View products that this article applies to.
Microsoft distributes Microsoft SQL Server 2008 R2 fixes as one downloadable file. Because the fixes are cumulative, each new release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 R2 fix release.
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Symptoms

Consider the following scenario:
  • You render a report in Microsoft SQL Server 2008 R2 Reporting Services (SSRS 2008 R2).
  • The report contains a text box that returns a long string of text.
  • The text contains no carriage return characters.
In this scenario, slow performance may occur, and SSRS 2008 R2 requires a long time to render the report compared with Microsoft SQL Server 2005 Reporting Services (SSRS 2005) or with Microsoft SQL Server 2008 Reporting Services (SSRS 2008).

Note To check the time records, run a query for the TimeRendering column in the ExecutionLog table.

Resolution

Cumulative update information

SQL Server 2008 R2 Service Pack 1

The fix for this issue was first released in Cumulative Update 1 for SQL Server 2008 R2 Service Pack 1. For more information about how to obtain this cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:
2544793 Cumulative Update package 1 for SQL Server 2008 R2 Service Pack 1
Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 R2 fix release. We recommend that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
2567616 The SQL Server 2008 R2 builds that were released after SQL Server 2008 R2 Service Pack 1 was released

SQL Server 2008 R2

The fix for this issue was first released in Cumulative Update 8. For more information about how to obtain this cumulative update package for SQL Server 2008 R2, click the following article number to view the article in the Microsoft Knowledge Base:
2534352 Cumulative Update package 8 for SQL Server 2008 R2
Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 R2 fix release. We recommend that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
981356 The SQL Server 2008 R2 builds that were released after SQL Server 2008 R2 was released

Workaround

To work around this issue, add carriage return characters between sections of the text.

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

References

For more information about how to query execution log data, visit the following MSDN website:
How to query execution log data
For more information about the Incremental Servicing Model for SQL Server, click the following article number to view the article in the Microsoft Knowledge Base:
935897 An Incremental Servicing Model is available from the SQL Server team to deliver hotfixes for reported problems
For more information about the naming schema for SQL Server updates, click the following article number to view the article in the Microsoft Knowledge Base:
822499 New naming schema for Microsoft SQL Server software update packages
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Properties

Article ID: 2559662 - Last Review: June 21, 2014 - Revision: 3.0
Applies to
  • Microsoft SQL Server 2008 R2 Reporting Services
Keywords: 
kbqfe kbfix kbexpertiseadvanced kbsurveynew KB2559662

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