c# visual studio 2017 CPU profiling out of memory

Question

I've got a long running c# application that I'm profiling in visual studio 2017 community edition. Runs for about 2/3 hours before I stop the profiling (and application) to see the CPU usage. However I can see when its building the reports the memory usage increases by 3GB then throws an out of memory exception.

Profiling started.
Profiling process ID 7312 (test).
Starting data collection. The output file is C:\Users\jamie\Source\Repos\test(1).vspx
Profiler stopping.
Stopping data collection.
Merging collection data. Please wait...
Data is saved in file C:\Users\jamie\Source\Repos\test(1).vspx
Profiling finished.
Exception of type 'System.OutOfMemoryException' was thrown.

Is there anything I can do to fix this or do I just have to get more memory?

Oddly the total memory usage on my machine is around 65% when it throws this so its not even using all my memory to build the profiling reports.

This is a fresh install of VS and its got all the default settings.