Setting The Image Cache - AMX NXD-1200VG Operation/Reference Manual

Cache Settings Page Elements
Back:
Connection Status icon:
Image Cache Settings:
Flash Cache Size
Flash/RAM Cache Expires
Enable:
Clear Cache:
Image Cache Status:
RAM Max Size
RAM Current Size
RAM Hit Rate
Items in Cache (RAM)
Flash Current Size
Flash Hit Rate
Items in Cache (Flash)

Setting the image cache

In the Protected Setup page:
1.
Press the Cache button in the Protected Setup Navigation Buttons section. This opens the Cache Settings page.
2.
Set the cache expiration in the field Flash/RAM Cache Expires. The Up and Down arrows increment through the
available time frames.
VG Series Modero Touch Panels
Saves all changes and returns to the previous page.
The icon in the upper-right corner of each Setup page shows online/offline state of the
panel to the master.
• Bright red - disconnected
• Bright green - connected. Blinks when a blink message is received to dark green
every 5 seconds for half a second then go back to bright green.
• Bright yellow - panel missed a blink message from the master. It will remain yellow for
3 missed blink messages and then turn red. It will return to green when a blink
message is received.
Note: A Lock appears on the icon if the panel is connected to a secured NetLinx Master.
Allocates Flash memory for image caching.
Press the Up and Down arrows to add and remove memory. Flash memory allocation
cannot exceed the amount of Flash memory on the panel.
Press the Up and Down arrows to change the amount of time the images stay in cache
memory. The options are:
• Never
• 2 Hours
• 8 Hours
• 1 Day
• 2 Days
• 5 Days
Press this button to toggle the image Flash cache option On and Off.
Press this button to clear both the Flash and RAM cache of all stored images.
The status of the memory available versus in use.
The maximum amount of memory available for all image caching.
The memory that is currently in use for caching static and dynamic images.
The percentage of image requests (static and dynamic) satisfied by accessing the cache.
100 * (# of cache hits) / (# of cache hits + # of cache misses)
# of cache hits - the number of times an image was requested that the image was found in
the cache. If your hit rate is low, you may want to consider enabling Flash cache.
# of cache misses - the number of times an image was requested that the image could not
be found in the cache, and the image had to either be loaded from flash or obtained via the
network (for dynamic images). It is considered a RAM Cache Miss even if the image is
subsequently found in flash cache.
The number of images that are currently stored in the RAM cache.
The maximum flash space allocated for image caching. Flash space is used for caching
only when there is not enough available memory in the RAM cache for a newly requested
image (it is used only for dynamic images).
The percentage of image requests (dynamic only) that are satisfied by accessing the flash
cache.
100 * (# of flash cache hits) / (# of flash cache hits + # of flash cache misses)
# of flash cache hits - # of times a dynamic image could not be found in RAM cache but
was found in flash cache
# of flash cache misses - # of times a dynamic image could not be found in either RAM or
flash cache. RAM cache hits are not relevant in this calculation.
The number of images that are currently stored in the Flash cache.
Firmware Pages and Descriptions
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