Version 8.1.39
I was working on a customer's server when I noticed that expression tags were taking 30-40 seconds to initialize or to update their values.
I tried creating memory and reference tags and those updated immediately.
All of these tags were on my own tag group which had the default settings of 1000ms and a new name to differentiate from "Default".
Remoting into the server showed the cpu was consistently around 40% and the memory allowed for Ignition is 12 of 32GB. Ignition is only using a max of 9GB.
I am curious to know how expression tags execute differently from other types. And I want to know if anyone has seen and/or remedied this behavior before.
Some other information:
- there are 2 other tag providers that have about 50k tags each
- otherwise there around 10k tags among 10 other providers
- this gateway has the MQTT transmission module