I've read the mode documentation and I agree, fast mode is just as it's named: faster. However, when running inline searches for dashboard panels, searches often take a long time. Also, the root question about whether or not Splunk should attempt to extract fields based on field extraction stanzas that do not match the search terms remains to be answered.
For example, if my search is:
sourcetype=foo earliest=-60m@m
shouldn't Splunk only load the field extractions that match that source, sourcetype, or host? Currently, whenever I search for anything, Splunk loads the field extractions for everything under the sun. I believe this is leading to longer search times.
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