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# NumParallel

The number of video frames to analyze concurrently, where frames can be analyzed in parallel.

The result of changing this parameter depends on the value you have set for IngestRate:

- If you are processing video with `IngestRate=1` and your Media Server is dropping frames, increasing the value of this parameter allows Media Server to analyze a greater proportion of the frames that are selected for analysis (and therefore drop fewer frames).
- If you are processing video with `IngestRate=0`, increasing the value of this parameter means that Media Server can complete processing the video in less time.

Note: Do not increase the value of this parameter unless your server has spare resources (CPU cores) available, because doing so will significantly decrease performance.

This parameter has no effect on single images (Media Server always uses a single thread on images).

Type: | Integer
Default: | 1
Required: | No
Configuration Section: | TaskName
Example: | To allow object recognition to use up to two threads: `NumParallel=2`
See Also: | IngestRate SampleInterval

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