i386/135447: [i386] [request] Intel Core i7 and Nehalem-EP new
features not supported
brucec at FreeBSD.org
brucec at FreeBSD.org
Sun Sep 12 10:40:05 UTC 2010
Synopsis: [i386] [request] Intel Core i7 and Nehalem-EP new features not supported
State-Changed-From-To: closed->open
State-Changed-By: brucec
State-Changed-When: Sun Sep 12 10:35:23 UTC 2010
State-Changed-Why:
This does appear to be a bug, but only in the ACPI code: Hyperthreading
isn't guaranteed to give a performance increase for every workload, and
TurboBoost is only seen once lower Cx states are enabled.
Responsible-Changed-From-To: brucec->freebsd-acpi
Responsible-Changed-By: brucec
Responsible-Changed-When: Sun Sep 12 10:35:23 UTC 2010
Responsible-Changed-Why:
Over to the acpi list.
This appears to be a problem with ACPI on the machine, because C2 and C3
states should probably be available.
http://www.freebsd.org/cgi/query-pr.cgi?pr=135447
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