Topic Last Modified: 2006-09-06

The Microsoft® Exchange Server Analyzer Tool has determined that your server has a high RPC operations-per-second count.

If your server has a high RPC operations-per-second count, you can use the Exchange Server User Monitor (ExMon) to identify how the load is distributed. It is important to determine if the load is caused by one of the following circumstances:

If a single user is identified as causing a high percentage of the load, the Exchange Server Analyzer displays a warning stating that high usage can be traced back to a single user. If this is not the case, the Exchange Server Analyzer displays a message stating that the load is distributed across many users.

Note:
RPC traffic changes over time. Therefore, to capture statistically relevant data about how users use Exchange, you may need to collect data multiple times.

Additionally, it is typical that some common user operations will expend large amounts of CPU utilization for a short period of time. Do not be concerned about this activity unless the same user is expending large amounts of CPU utilization frequently or over long periods of time.

Note:
You can safely disregard this warning if the source of the high load is a known service or process that is expected to have high load and which processes requests for many users and generates a higher load than individual users. Some services that sync mobile devices, server processes that manage free busy, services related to voice mail or unified messaging, and server processes that move users are examples of services or processes that can cause higher load than individual users.
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