@chris
no I actually found out its a Mi IO problem
the issue gone from the Mi IO Binding as Marc provided a fix and threads are back to normal.
however I still see a extremely volatile performance on zigbee
few times its almost instant … but often it seems to timeout fully
I put the binding to debug but dont see as much as for zwave in the log
is there more from the zigbee bundles I need to put into debug?
334 │ Active │ 80 │ 1.3.4 │ com.zsmartsystems.zigbee
335 │ Active │ 80 │ 1.3.3 │ com.zsmartsystems.zigbee.console
336 │ Active │ 80 │ 1.3.4 │ com.zsmartsystems.zigbee.console.ember
337 │ Active │ 80 │ 1.3.3 │ com.zsmartsystems.zigbee.dongle.cc2531
338 │ Active │ 80 │ 1.3.3 │ com.zsmartsystems.zigbee.dongle.ember
339 │ Active │ 80 │ 1.3.4 │ com.zsmartsystems.zigbee.dongle.telegesis
340 │ Active │ 80 │ 1.3.4 │ com.zsmartsystems.zigbee.dongle.xbee
341 │ Active │ 80 │ 2.5.5 │ openHAB Add-ons :: Bundles :: ZigBee Binding
342 │ Active │ 80 │ 2.5.5 │ openHAB Add-ons :: Bundles :: ZigBee CC2531 Bridge
343 │ Active │ 80 │ 2.5.5 │ openHAB Add-ons :: Bundles :: ZigBee Console
344 │ Active │ 80 │ 2.5.5 │ openHAB Add-ons :: Bundles :: ZigBee Console Ember
345 │ Active │ 80 │ 2.5.5 │ openHAB Add-ons :: Bundles :: ZigBee Ember Bridge
346 │ Active │ 80 │ 2.5.5 │ openHAB Add-ons :: Bundles :: ZigBee Telegesis Bridge
347 │ Active │ 80 │ 2.5.5 │ openHAB Add-ons :: Bundles :: ZigBee XBee Bridge