-# YAZ_LOG=irspy,irspy_test,irspy_debug,irspy_event perl -I ../lib irspy.pl localhost:3313/IR-Explain---1 bagel.indexdata.dk/gils z3950.loc.gov:7090/Voyager bagel.indexdata.dk:210/marc
+# YAZ_LOG=irspy,irspy_task perl -I ../lib irspy.pl -t Quick localhost:3313/IR-Explain---1 bagel.indexdata.dk/gils z3950.loc.gov:7090/Voyager bagel.indexdata.dk:210/marc
+# Available log-levels are as follows:
+# irspy -- high-level application logging
+# irspy_debug -- low-level debugging (not very interesting)
+# irspy_event -- invocations of ZOOM_event() and individual events
+# irspy_unhandled -- unhandled events (not very interesting)
+# irspy_test -- adding, queueing and running tests
+# irspy_task -- adding, queueing and running tasks