new URL(args[0]), args[1], args[2], true);
PerformanceManager perfMgr = si.getPerformanceManager();
System.out.println("***Print All Descriptions:");
PerformanceDescription pd = perfMgr.getDescription();
printPerfDescription(pd);
System.out.println("\n***Print All Historical Intervals:");
PerfInterval[] pis = perfMgr.getHistoricalInterval();
printPerfIntervals(pis);