Supermicro X11SPi-TF

Super X11SPi-TF User's Manual
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• UPI Global MMIO Low Base / Limit
• UPI Global MMIO High Base / Limit
• UPI Pci-e Conguration Base / Size
Degrade Precedence
Use this feature to set degrade precedence when system settings are in conict. Select
Topology Precedence to degrade Features. Select Feature Precedence to degrade Topol-
ogy. The options are Topology Precedence and Feature Precedence.
Link L0p Enable
Select Enable for the QPI to enter the L0p state for power saving. The options are Dis-
able, Enable, and Auto.
Link L1 Enable
Select Enable for the QPI to enter the L1 state for power saving. The options are Dis-
able, Enable, and Auto.
IO Directory Cache (IODC)
IO Directory Cache is an 8-entry cache that stores the directory state of remote IIO writes
and memory lookups, and saves directory updates. Use this feature to lower cache to
cache (C2C) transfer latencies. The options are Disable, Auto, Enable for Remote InvItoM
Hybrid Push, InvItoM AllocFlow, Enable for Remote InvItoM Hybrid AllocNonAlloc, and
Enable for Remote InvItoM and Remote WViLF.
SNC
Sub NUMA Clustering (SNC) is a feature that breaks up the Last Level Cache (LLC) into
clusters based on address range. Each cluster is connected to a subset of the memory
controller. Enable this feature to improve average latency and reduce memory access
congestion for higher performance. The options are Disable, Enable, and Auto.
XPT Prefetch
This feature makes a copy to the memory controller of a read request being sent to LLC.
The options are Disable and Enable.
KTI Prefetch
KTI Prefetch enables memory read to start early on a DDR bus. The options are Dis-
able and Enable.