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From: Justin Piszcz <jpiszcz@lucidpixels.com>
To: linux-kernel@vger.kernel.org
Cc: news@phoronix.com
Subject: Intel P55KG motherboard benchmarks, why are the benchmarks slow?
Date: Mon, 21 Sep 2009 13:16:48 -0400 (EDT)	[thread overview]
Message-ID: <alpine.DEB.2.00.0909211309380.30027@p34.internal.lan> (raw)

Hello,

This has been discussed in a few forums:
http://www.phoronix.com/scan.php?page=article&item=intel_p55&num=3

Specifically:
[ 0.781758] ACPI Warning: \_PR_.CPU0._PSS: Return type mismatch - found Integer, expected Package 20090521 nspredef-940
[ 0.781763] ACPI: Invalid _PSS data
[ 0.781855] [Firmware Bug]: BIOS needs update for CPU frequency support
[ 0.781897] ACPI Warning: \_PR_.CPU2._PSS: Return type mismatch - found Integer, expected Package 20090521 nspredef-940
[ 0.781900] ACPI: Invalid _PSS data
[ 0.782000] [Firmware Bug]: BIOS needs update for CPU frequency support
[ 0.782040] ACPI Warning: \_PR_.CPU4._PSS: Return type mismatch - found Integer, expected Package 20090521 nspredef-940
[ 0.782044] ACPI: Invalid _PSS data
[ 0.782140] [Firmware Bug]: BIOS needs update for CPU frequency support
[ 0.782180] ACPI Warning: \_PR_.CPU6._PSS: Return type mismatch - found Integer, expected Package 20090521 nspredef-940
[ 0.782184] ACPI: Invalid _PSS data

Could this be the culprit as to why the i870 was so slow during all of the
benchmarks here:
http://www.phoronix.com/scan.php?page=article&item=intel_lynnfield&num=1

While the anandtech article:
http://anandtech.com/cpuchipsets/showdoc.aspx?i=3641

- Shows the new 870 outperforming the 920 in nearly every test?
- Why is the linux performance so poor?  BIOS issue?
- Does anyone have any new benchmarks with an updated BIOS?

- Or, are the benchmarks on anandtech taking advantage of new features in 
the CPU not available with programs compiled with GCC or is this just due 
to the BIOS bug?  I suspect the latter, but was curious..

Justin.


             reply	other threads:[~2009-09-21 17:16 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-21 17:16 Justin Piszcz [this message]
2009-09-21 18:26 ` Lennart Sorensen

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