Replication Server has several hundred different counters that can monitor performance at various points and areas in the replication process. By default, counters are not active until you choose to activate them—with the exception of a few counters that are always active.
You can view current counter values and other performance information at any time using these commands:
admin stats – displays current values for specified counters.
admin stats, backlog – displays the current backlog in the Replication Server stable queues.
admin stats, { tps | cps | bps } – displays throughput in terms of transactions per second, commands per second, or bytes per second.
admin stats, { md | mem | mem_in_use } – displays message and memory information
Counter values can also be saved (or flushed) to the RSSD, where averages and rates can be calculated and viewed using standard Transact-SQL statements or the rs_dump_stats stored procedure.