Set the following environment variable

MONO_ENV_OPTIONS=--profile=log:calls,alloc,output=output.mlpd,heapshot=1gc

More documentation can be found here

This will generate a file called output.mpld and can be found at the following location:

ls -al --block-size=MB Barista.app/Contents/Resources/output.mlpd

To examine this file you can use Xamarin profiler or the mrpof-report command

mprof-report Barista.app/Contents/Resources/output.mlpd