I have a weird situation and don't know where to look next. We have made a panel that displays some historical data. It first does a MS-SQL query to get a large set of alarms (example: 5000). Then scripting is used to do some pre-processing. Or, add some information that is not available in MS-SQL.
The weird thing is: when I run (quick-test) this panel in the Gedi then it is pretty fast ( 1.5 seconds). But when I start this from our 'runtime' application ( e.g. the application that has all the process images, navigation buttons, alarm row and such) then the exact same panel, doing the exact same query will take 3 times longer (roughly 5 seconds)
I guessed that this could be caused by the fact that the HMI needs to handle more threads. I then added a button to start 40 threads. But this had no effect in the gedi ?
Does anyone have an idea why the panel would be faster when using quick run in the gedi ?
Panel slower in 'runtime' HMI
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dbindernagel
- Posts: 151
- Joined: Mon Feb 23, 2015 1:34 pm
Re: Panel slower in 'runtime' HMI
1. Do you know which part is slower? It might help to know if the additional time is comming from the query part or the pre-processing.
2. Is the panel running on different systems?
I assume you mean accessing MS-SQL through the database functions (dbOpenConnection, ...) and not NGA with MS-SQL.
Not so firm with this but I think, depending on your connection string, it is possible that the panel is using different DB drivers on different systems, which might not perform the same.
2. Is the panel running on different systems?
I assume you mean accessing MS-SQL through the database functions (dbOpenConnection, ...) and not NGA with MS-SQL.
Not so firm with this but I think, depending on your connection string, it is possible that the panel is using different DB drivers on different systems, which might not perform the same.