Use the derby.drda.timeSlice property to set the number of milliseconds
that each connection will use before yielding to another connection. This
property is relevant only if the derby.drda.maxThreads property is set
to a value greater than zero.
Syntax
derby.drda.timeSlice=milliseconds
Example
derby.drda.timeSlice=2000
Static or dynamic
Static. You must restart the Network
Server for changes to take effect.