I'm using splunk could and having access to search head. Is there any search query to find out indexing and EPS rate.
Here are some queries supplied by @martin_mueller in an older post.
index=_internal component=metrics TERM(group=thruput) | timechart per_second(ev) by splunk_server index=_internal component=metrics TERM(group=thruput) | timechart avg(instantaneous_eps) by splunk_server
He suggests that the two may produce very different metrics if your server isn't on all day.
Do you've DMC configured on your search head? If you do, you can see all metrics about indexing in the indexing performance dashboard in there.