If "QUIET Perforce messages" is unchecked, the job's console log should show the output from the "p4 reconcile -w -f" in the populate option Auto Cleanup and Sync.

Even a simple:   <clientFile> <action>

like:

   /jenkins/job/abc/workspace/path/to/modifed refreshed

   /jenkins/job/abc/workspace/path/to/newFile deleted