[undertow-dev] Undertow worker threads

Dear Undertow devs, I'm running some test on the new undertow subsystem: in particular I'm trying to control the maximum threads available for serving http requests (old Tomcat maxThread parameter). Is it correct to define the max threads allowed via the io-threads attribute of the worker element as follows ? <subsystem xmlns="urn:jboss:domain:undertow:1.0"> <http-listener name="default" socket-binding="http" worker="custom" /> . . . </subsystem> <subsystem xmlns="urn:jboss:domain:io:1.0"> <worker name="custom" io-threads="100" /> <buffer-pool name="default" buffer-size="16384" buffers-per-slice="128"/> </subsystem> Or should rather use the task-max-threads attribute instead ? Thanks! Francesco