OpenSolaris

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Bug ID 6495401
Synopsis cpuid based cache hierarchy awareness
State 10-Fix Delivered (Fix available in build)
Category:Subcategory kernel:arch-x86
Keywords SFO
Responsible Engineer Eric Saxe
Reported Against
Duplicate Of
Introduced In solaris_nevada
Commit to Fix snv_69
Fixed In snv_69
Release Fixed solaris_nevada(snv_69) , solaris_10u5(s10u5_03) (Bug ID:2154119)
Related Bugs
Submit Date 20-November-2006
Last Update Date 11-October-2007
Description
The cpuid instruction on newer processors provides information about the cache hierarchy, which includes CPU <=> cache sharing relationships. Where available, Solaris should use cpuid to become aware of the processor's cache hierarchy specifics so that it may employ scheduling policies that best suit the performance relevant characteristics of the processor's cache hierarchy.
Work Around
N/A
Comments
N/A