Use admin stats to view the memory management statistics.
admin stats,rsh display_name instance_idwhere:
instance_id – identifies a particular instance of a module such as SQT or SQM. To view instance IDs, execute admin who and view the Info column. For rsh module, the SPID must be used. To view SPID, execute admin who and view the Spid column.
See Replication Server Reference Manual > Replication Server Commands > admin stats.