SQL Server 2016 has a per-session wait stats DMV: sys.dm_exec_session_wait_stats. That’s exciting; wait stats are extremely interesting, but until now, impossible to use on a per-item level in a busy production system (where you’d most want to use them).
[R]esetting the data of sys.dm_os_wait_stats operating system view doesn’t affect the values of sys.dm_exec_session_wait_stats view.
Based on my MSDN reading, the sys.dm_exec_session_wait_stats DMV resets if the connection pool context is re-used or if the session closes. This is why DBCC SQLPERF doesn’t include a reset option for session-specific wait stats.