A hotfix is available for a performance issue on systems that contain more than 32 logical processors in high-transaction environments in SQL Server 2012

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Article ID: 2768720
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Introduction

This article describes a hotfix for Microsoft SQL Server 2012 that resolves a performance issue that may occur when you use systems that have more than 32 logical processors in high-transaction environments.

Resolution

Cumulative update information

Cumulative Update 7 for SQL Server 2012

The fix for this issue was first released in Cumulative Update 7. For more information about how to obtain this cumulative update package for SQL Server 2012, click the following article number to view the article in the Microsoft Knowledge Base:
2823247 Cumulative update package 7 for SQL Server 2012
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 2012 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:
2692828 The SQL Server 2012 builds that were released after SQL Server 2012 was released

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:
http://support.microsoft.com/contactus/?ws=support
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must have SQL Server 2012 installed.

Restart requirement

You do not have to restart the computer after you apply the hotfix.

File information

The global version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

For all supported x86-based versions of SQL Server 2012
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Datacollectorcontroller.dll2011.110.2386.0159,72807-04:40x86
Eng_re_sqlaccess_dll.322011.110.2386.0441,85607-04:39x86
Keyfile.dll2011.110.2386.023,53607-04:36x86
Microsoft.sqlserver.xevent.linq.dll2011.110.2386.0347,12007-04:41x86
Rsfxft.dll2011.110.2386.031,23207-04:43x86
Sqagtres.dll2011.110.2386.053,23207-04:35x86
Sqlagent.dll2011.110.2386.0444,92807-04:45x86
Sqlatxss.dll2011.110.2386.040,44807-04:41x86
Sqlboot.dll2011.110.2386.0161,26407-04:35x86
Sqldk.dll2011.110.2386.01,641,96807-04:35x86
Sqllang.dll2011.110.2386.026,009,07207-04:35x86
Sqlmin.dll2011.110.2386.026,514,92807-04:35x86
Sqlos.dll2011.110.2386.024,57607-04:43x86
Sqlscriptdowngrade.dll2011.110.2386.024,06407-04:35x86
Sqlscriptupgrade.dll2011.110.2386.05,482,99207-04:40x86
Sqlservr.exe2011.110.2386.0160,25607-04:45x86
Sqltses.dll2011.110.2386.08,154,11207-04:35x86
For all supported x64-based versions of SQL Server 2012
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Datacollectorcontroller.dll2011.110.2386.0255,47207-04:48x64
Eng_re_sqlaccess_dll.642011.110.2386.0448,49607-04:51x64
Keyfile.dll2011.110.2386.023,55207-04:48x64
Microsoft.sqlserver.xevent.linq.dll2011.110.2386.0419,84007-04:52x64
Rsfxft.dll2011.110.2386.035,82407-04:35x64
Sqagtres.dll2011.110.2386.061,42407-04:36x64
Sqlagent.dll2011.110.2386.0608,24007-04:49x64
Sqlatxss.dll2011.110.2386.046,57607-04:48x64
Sqlboot.dll2011.110.2386.0168,93607-04:36x64
Sqldk.dll2011.110.2386.02,014,18407-04:36x64
Sqllang.dll2011.110.2386.033,969,13607-04:36x64
Sqlmin.dll2011.110.2386.032,457,71207-04:36x64
Sqlos.dll2011.110.2386.025,58407-04:35x64
Sqlscriptdowngrade.dll2011.110.2386.025,07207-04:36x64
Sqlscriptupgrade.dll2011.110.2386.05,481,96807-04:36x64
Sqlservr.exe2011.110.2386.0190,96007-04:49x64
Sqltses.dll2011.110.2386.08,923,63207-04:36x64

Status

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

Properties

Article ID: 2768720 - Last Review: April 15, 2013 - Revision: 3.0
Keywords: 
kbtshoot kbautohotfix kbqfe kbhotfixserver kbfix kbexpertiseadvanced kbsurveynew KB2768720

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