Open62541 Client implementation to monitor 1000 variables on a server

[r-makani]

I am working on a client implementation where I need to subscribe to 1000 variables from a server. Right now, I am creating one subscription and adding the monitored variables using UA_Client_MonitoredItems_createDataChange() to the same subscription. Also, I am handling all the datachange callbacks through the same callback mechanism.

Is this approach good or should I create multiple subscriptions and add monitor items to them accordingly?

Checklist

Please provide the following information:

• open62541 Version (release number or git tag): HEAD
• Other OPC UA SDKs used (client or server): No
• Operating system: Linux
• Logs (with UA_LOGLEVEL set as low as necessary) attached: No
• Wireshark network dump attached: No
• Self-contained code example attached: No
• Critical issue: YES