The group is re-opened at every call to get_data. This is a pretty big overhead for reading large batches of data, since this small function gets called many many times.
This needs to be modified to maintain a list of open groups and pass them to the deserialization as needed.
marcodeltutto
commented
5 years ago
In this line in IO manager:
https://github.com/DeepLearnPhysics/larcv3/blob/0663596d3a0544e56b289b3d779e4fae544d96a6/src/larcv3/core/dataformat/IOManager.cxx#L745
The group is re-opened at every call to get_data. This is a pretty big overhead for reading large batches of data, since this small function gets called many many times.
This needs to be modified to maintain a list of open groups and pass them to the deserialization as needed.