Joern,
Thanks for your input. Instead of forcing the test to sleep, another approach is
to adjust the expected performance according to the capabilities of the host
CPU. This is the approach adopted in BogoPerf. See
http://svn.qos.ch/viewvc/logback/trunk/logback-classic/src/test/java/ch/qos/logback/classic/LoggerPerfTest.java
http://svn.qos.ch/viewvc/logback/trunk/logback-classic/src/test/java/ch/qos/logback/classic/util/BogoPerf.java