[hibernate-dev] taking timings

Hi, I am looking into collection some statistics for HSearch. I am for example interested in measuring the Lucene query execution time and the Hibernate Core "object loading" time. I could just wrap the calls I am interested in System.nanoTime() or I could write a custom StopWatch class, but I was wondering whether there is some sort of library I could use. I found perf4j (http://perf4j.codehaus.org). Does anyone have experience with this library? It looks nice, but I don't like it that the logging approach it takes seems to be bound to log4j atm. Comments? --Hardy