Microsoft Exchange Performance Counters

Microsoft Exchange Mailbox Server Information Store RPC Processing counters

The following table shows information store RPC processing counters.

Counter Name	Description
MSExchangeIS Client (*)\RPC Average Latency
MSExchangeIS Mailbox\RPC Averaged Latency	Indicates the RPC latency, in ms, averaged for all operations in the last 1,024 packets.
MSExchangeIS\RPC Averaged Latency	Indicates the RPC latency, in ms, averaged for all operations in the last 1,024 packets. For information about how clients are affected when overall server RPC averaged latencies increase, see Understanding Client Throttling Policies.
MSExchangeIS\RPC Requests	Indicates the overall RPC requests currently executing within the information store process.