QTableView and Large data sets

[anda_skoa]

What do you mean with "load the data into a QAbstractItemModel"?
Usually the model is only the interface to the data.

How does your application store and access the data?

Cheers,
_

[KenJustKen]

The data is stored as 32 byte binary records on the disk after being read from the acquisition card.

[anda_skoa]

If the data format allows you to determine file position based on the index of a record, then you could create a model that access the data in the file directly.

Potentially using a memory mapped file and/or caching some records in memory.

E.g. some header offset aside, if the first record starts at 0*32 and the second starts at 1*32 and so on, then you can simply determine the model's row count by fileSize/32.
And the model's data can simply seek to index.row() * 32 to retrieve the record.

Cheers,
_