DB2 FOR LUW / DB2FORLUW / 970 - DB2

DB2 incorrectly counts a core which is Intel HyperThreading as 
two cores. It should be counted as 1 core with threading level 
of 2 for the purpose of license enforcement. Our license text 
explicitly states limits as based on cores rather than Intel 
"threads". 
 
Correct output should be 
Dual X5560 (2 socket) 
CPU: total:16 online:16 Cores per socket:4 Threading degree per 
core:2 
 
Instead in db2diag.log it reports 
CPU: total:16 online:16 Cores per socket:8 Threading degree per 
core:1 
 
This can also be displayed via db2pd -osinfo. 
 
The output we are looking for will be similar to 
 
CPU Information: 
TotalCPU    OnlineCPU   ConfigCPU   Speed(MHz)  HMTDegree 
Cores/Socket 
8           8           8           1648        2           n/a

**************************************************************** 
* USERS AFFECTED:                                              * 
* DB2 Express-C and DB2 Express users running on hardware with * 
* Intel processor(s) that have Hyperthreading                  * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* DB2 Express-C and DB2 Express will only use half the         * 
* physical CPU cores they should, because Hyperthreading will  * 
* make it look as though the computer has twice as many cores  * 
* as it actually does.                                         * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 v9.7fp6                                       * 
****************************************************************

DB2 Version 9.7 Fix Pack 5 for Linux, UNIX, and Windows
 DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows
 DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
 DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
 DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
 DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
 DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows
 

keiner bekannt / siehe Local-Fix

Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:

15.09.2011
06.02.2012
06.02.2012

9.7.FP6