There is a performance issue with geoprocessing services when utilized in ArcGIS Pro.

Additional Information

Workaround

Use a combination of other geoprocessing tools to accomplish the same output:

1. Use arcpy.management.GeneratePointsAlongLines to place points at equal intervals along the line to use as the sample points for the elevation profile.
2. Use arcpy.ExtractValuesToPoints to add the elevation value of the raster to each point as an attribute.
3. Use arcpy.ddd.FeatureTo3DByAttribute to make the points 3D and add the extracted elevation values to the Z geometry of the point.
4. Use arcpy.management.PointsToLine to reconnect all the points.

Steps to Reproduce