Supermicro X14SBT-GAP handleiding
Handleiding
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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 Disabled, Enabled, and Auto. This feature
is CPU-dependent.
Note: This feature is NOT available when "Workload Profile" is set to I/O, Virtualization, or
Telco FlexRAN.
XPT Prefetch
XPT Prefetch is a feature that speculatively makes a copy to the memory controller of a read
request being sent to the LLC. If the read request maps to the local memory address and the
recent memory reads are likely to miss the LLC, a speculative read is sent to the local memory
controller. The options are Disabled, Enabled, and Auto.
Stale AtoS
The in-memory directory has three states: I, A, and S states. The I (-invalid) state indicates that
the data is clean and does not exist in the cache of any other sockets. The A (-snoop All) state
indicates that the data may exist in another socket in an exclusive or modified state. The S state
(-Shared) indicates that the data is clean and may be shared in the caches across one or more
sockets. When the system is performing "read" on the memory and if the directory line is in A
state, we must snoop all other sockets because another socket may have the line in a modified
state. If this is the case, a "snoop" will return the modified data. However, it may be the case
that a line "reads" in an A state, and all the snoops come back with a "miss." This can happen if
another socket reads the line earlier and then has silently dropped it from its cache without
modifying it. If "Stale AtoS" is enabled, a line will transition to the S state when the line in the A
state returns only snoop misses. That way, subsequent reads to the line will encounter it in the
S state and will not have to snoop, saving the latency and snoop bandwidth. Stale "AtoS" may
be beneficial in a workload where there are many cross- socket reads. The options are
Disabled, Enabled, and Auto.
LLC Dead Line Alloc
Select Enabled to optimally fill the dead lines in the LLC. The options are Disabled, Enabled,
and Auto.
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X14SBT-GAP: UEFI BIOS
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Productinformatie
| Merk | Supermicro |
| Model | X14SBT-GAP |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 15560 MB |
