For every 5 min setting, set interval = 300, meaning 300 second.
http://docs.splunk.com/Documentation/DBX/1.1.4/DeployDBX/inputsspec
As the dbmon parameters, they are configured in the section [dbmon] of java.conf:
scheduler.startup.delay: initialScheduleDelay in java, the default is 5000 milliseconds
scheduler.auto.mix.delay: autoMinDelay in java, the default is 5000 milliseconds.
scheduler.auto.max.delay: autoMaxDelay in java, the default is 120000 milliseconds.
scheduler.auto.duration.factor: autoDurationFactor, the default is 100
scheduler.auto.decay.increment: autoDecayIncrement, the default is 5000 milliseconds.
Those parameters are used to decide how long the next scheduled monitor will occur when the monitor type is set interval = auto.
See README/inputs.conf.spec to explain the interval settings as auto, relative time and cron.
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