Epson ActionPC 8000, User Manual

Page: 39 / 187

Configuring cache memory
Enabling external cache memory improves system
performance, especially in large data retrieval and processing
environments. It’s a good idea to use the default settings for all
your Memory Cache options unless you have a specific
reason for changing them. The table below lists the memory
cache options.
Memory cache options
Option
External cache
L1 cache write back
Settings
Enabled *
Disabled
Enabled *
Description
Enables or disables the system’s
external (secondary) caching
Sets the internal (primary)
cache to Write-back mode
Disabled
Sets the internal (primary)
cache to Write-through mode
L2 cache write back Enabled *
Sets the external (secondary)
cache to Write-back mode
Disabled
Sets the external (secondary)
cache to Write-through mode
Cache system BIOS
Cache video BIOS
Non-cacheable area
#1 and #2
Enabled *
Disabled
Enabled
Disabled *
Enabled
Disabled *
Enables or disables caching of
the system BIOS memory area
Enables or disables caching of
the video BIOS memory area
Define the location (local
DRAM or AT bus), starting
address, and block size of two
non-cacheable memory
blocks: you may want to create
these areas to provide non-
cacheable memory for 16.bit
AT cards, such as video capture
boards: see your card
documentation to see if non-
cacheable memory is necessary
* Default setting
2-10 Running SETUP and Installing Drivers