Driver Statistics
- Last UpdatedDec 17, 2021
- 1 minute read
You can use the following driver statistics to help you debug the OPCLX driver operation:
|
Statistics |
Description |
|---|---|
|
Cached Reads |
Number of reads that have been serviced directly from the internal cache of current values. |
|
Cache Misses |
Number of reads that were not in the internal cache of current values which resulted in a direct request from the server. |
|
Active Items |
Number of items with valid server subscriptions which have been activated to receive data change notification. This may be a subset of the total number of items that are currently subscribed. |
|
Total Items |
Total number of items with valid server subscriptions. These items may or may not be currently activated to receive data change notifications. |
|
Bad Items |
Number of items that were not successfully subscribed to. These items may not exist on the server. |
|
Start ms |
Internal driver statistic used for driver debugging by Citect support engineers. |
|
Last ms |
Internal driver statistic used for driver debugging by Citect support engineers. |
|
Difference |
Internal driver statistic used for driver debugging by Citect support engineers. |
|
ReadItemsReQueued |
Internal driver statistic used for driver debugging by Citect support engineers. |
|
DCBsInHandlingQ |
Internal driver statistic used for driver debugging by Citect support engineers. |
|
DataNotYetValid |
Internal driver statistic used for driver debugging by Citect support engineers. |