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09-14-2016 01:53 AM
09-14-2016 01:53 AM
conrep on Broadwell-EP
Hi,
using conrep I can dump the current BIOS config. However, there is no list of available values for each setting, e.g.
<Section name="QPI_Snoop_Configuration" helptext="Note: "Standard" is the same "Home Snoop". This option allows for the configurations of different snoop modes that impact the QPI interconnect. Changing this option may improve performance in certain workloads.">Cluster_on_Die</Section>
How do I find out what setting to use for Home Snoop (Default, obviously) , Early Snoop, Home Snoop+DIR+OSB, etc.
Is there a list of all settings and their possible values?
Thanks!
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09-15-2016 03:24 AM
09-15-2016 03:24 AM
Re: conrep on Broadwell-EP
I just found out that all values are listed in the conrep.xml file.
There's a slight problem, however. The conrep.xml file in the latest toolchain is from Dec 3, 2015. It doesn't include configuration options and settings for Broadwell-EP. Where can I get an up-to-date version of conrep.xml?
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09-16-2016 05:33 AM
09-16-2016 05:33 AM
Re: conrep on Broadwell-EP
These values are shown in the latest shipping conrep.xml file
<Section name="QPI_Snoop_Configuration">
<helptext><![CDATA[Note: "Standard" is the same "Home Snoop". This option allows for the configurations of different snoop modes that impact the QPI interconnect. Changing this option may improve performance in certain workloads.]]></helptext>
<ev>CQHQPI</ev>
<length>1</length>
<value id="0x00">Standard</value>
<value id="0x01">Cluster_on_Die</value>
<value id="0x02">Early_Snoop</value>
<mask>0x03</mask>
<byte>0</byte>
</Section>