Counting Your searches

The following gives you a total for all adhoc searches run in the past 24 hours:

index=_internal sourcetype="searches" earliest=-24h | stats count

And this one will give you a total for all searches, including saved searches run in the past 24 hours:

index=_internal (sourcetype="searches" OR SavedSplunker) earliest=-24h | stats count

And individual counts by user:

index=_internal (sourcetype="searches" OR SavedSplunker) earliest=-24h | stats count by user

In the Search App in the Status > Search activity dashboards in Splunk 4.1.x there are dashboards containing the following searches:

Search load over time (last 24 hours)
Search count by user (last 24 hours)
Run time by user (last 24 hours)
Common searches (last hour)
CPU Utilization due to searches
etc.

If you have SplunkWeb running on the indexer these dashboards will display results for that indexer. I'm not sure if these dashboards are built out of the box for distributed search though.