smbstatus -P (if compiled with profiling ) will report the count of various operations. For example the first few lines of output are a# smbstatus -P | more smb_count: 0 uid_changes: 0 However if you are running a client using SMB2 smb_count does not get incremented. Only SMB1 operations are counted.
There are counters for the various smb2 commands but no count of all operations like smb_count gives for smb1. We could either make smb_count get incremented for smb2 ops as well or create a new counter smb2_count.
This is fixed with 4.3.0