The internal Log results editor window is slow when loading over 100K lines.
Needless to say - debugging a model where the debug log is 11 GB cant be done in the product, and the workflow to export to file is simply excruciatingly painful.
As the dual screen work is popular but hasn't gone anywhere, it would be easier to fire the log results view externally.
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You can also go to the Results folder and use a good text editor to view GB files.