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Description:
Context: Historical data writing (WriteHistoricalData) with a scale of approximately 200 calculation channels.
Observation: There is a significant performance disparity between archiving modules:
ModArcBasic: Formula calculation takes tens of milliseconds.
ModArcInflux: Formula calculation takes several seconds.
Impact: ModArcInflux is 10-100x slower than ModArcBasic. Since formula calculation is located in the synchronous write path, this latency causes severe blocking and negatively impacts data acquisition real-time performance.
Root Cause Analysis: The cost of formula calculation under ModArcInflux becomes excessively high as the channel scale increases, creating a bottleneck in the historical write path.Hi,
Thank you for the report.
To find a cause, it is required to debug ModArcInflux. Unfortunately, this work is not planned to be included in the work plan for the near future. It would be great if you could explore this issue further.I would like to point out that the dependencies for working with Influx are likely outdated. A major update to ModArcInflux may be required.
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