NEC Express5800 Series Maintenance Manual page 100

Chapter 2 Useful Features
(a) Processor Prefetcher Options Menu
When you select System Configuration > BIOS/Platform Configuration (RBSU) > Power and Performance
Options > Processor Prefetcher Options from the System Utilities, the Processor Prefetcher Options menu
appears.
For details about the options, see the table below.
Option
HW Prefetcher
Adjacent Sector Prefetch
DCU Stream Prefetcher
DCU IP Prefetcher
LLC Prefetch
XPT Prefetcher
100
Parameter
[Enabled] Use this option to disable the processor HW prefetch
Disabled feature. In some cases, setting this option to disabled can
improve performance. Typically, setting this option to
enabled provides better performance. Only disable this
option after performing application benchmarking to verify
improved performance in the environment.
[Enabled] Use this option to disable the processor Adjacent Sector
Disabled Prefetch feature. In some cases, setting this option to
disabled can improve performance. Typically, setting this
option to enabled provides better performance. Only
disable this option after performing application
benchmarking to verify improved performance in the
environment.
[Enabled] Use this option to disable the processor DCU Stream
Disabled Prefetcher feature. In some cases, setting this option to
disabled can improve performance. Typically, setting this
option to enabled provides better performance. Only
disable this option after performing application
benchmarking to verify improved performance in your
environment.
[Enabled] Use this option to disable the processor DCU IP
Disabled Prefetcher feature. In some cases, setting this option to
disabled can improve performance. In most cases, the
default value of enabled provides optimal performance.
Only disable this option after performing application
benchmarking to verify improved performance in the
environment.
Enabled Use this option to configure the processor Last Level
[Disabled] Cache (LLC) prefetch feature. In some cases, setting this
option to disabled can improve performance. Typically,
setting this option to enabled provides better
performance. Only disable this option after performing
application benchmarking to verify improved performance
in the environment.
[Auto]
"Enabled" setting of this option is not supported.
Enabled
Use this option with "Auto" or "Disabled" setting.
Disabled
Express5800/R120h-1E, R120h-2E Maintenance Guide
Description
[ ]: Default setting
1. System Utilities