Acer AR380 F1 User Manual - Page 97

NorthBridge Chipset Configuration, DCA Prefetch Delay: A DCA Prefetch is used with TOE components

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79 NorthBridge Chipset Configuration Intel I/OAT: Significantly reduces CPU overhead by leveraging CPU architectural improvements, freeing resources for other tasks. DCA Technology: Select Enabled to use Intel's DCA (Direct Cache Access) Technology to improve data transfer efficiency. DCA Prefetch Delay: A DCA Prefetch is used with TOE components to prefetch data in order to shorten execution cycles and maximize data processing effi ciency. A TOE device is a specialized, dedicated processor that is installed on an add-on card or a network card to handle some or all packet processing of this add-on card. Prefetching too frequently can saturate the cache directory and delay necessary cache accesses. This feature reduces or increases the frequency the system prefetches data. The options are [8], [16], [32], [40], [48], [56], [64], [72], [80], [88], [96], [104], [112], and [120]. Intel VT-d: Select Enabled to enable Intel Virtualization Technology support for Direct I/O VT-d by reporting the I/O device assignments to VMM through the DMAR ACPI Tables. This feature offers fullyprotected I/O resource-sharing across the Intel platforms, providing you with greater reliability, security and availability in networking and data-sharing.

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79
NorthBridge Chipset Configuration
Intel I/OAT:
Significantly reduces CPU overhead by leveraging CPU
architectural improvements, freeing resources for other tasks.
DCA Technology: Select Enabled to use Intel's DCA (Direct Cache
Access) Technology to improve data transfer efficiency.
DCA Prefetch Delay: A DCA Prefetch is used with TOE components to
prefetch data in order to shorten execution cycles and maximize data
processing effi ciency. A TOE device is a specialized, dedicated
processor that is installed on an add-on card or a network card to
handle some or all packet processing of this add-on card. Prefetching
too frequently can saturate the cache directory and delay necessary
cache accesses. This feature reduces or increases the frequency the
system prefetches data. The options are [8], [16], [32], [40], [48], [56],
[64], [72], [80], [88], [96], [104], [112], and [120].
Intel VT-d:
Select Enabled to enable Intel Virtualization Technology
support for Direct I/O VT-d by reporting the I/O device assignments to
VMM through the DMAR ACPI Tables. This feature offers fully-
protected I/O resource-sharing across the Intel platforms, providing
you with greater reliability, security and availability in networking and
data-sharing.