opHistoryDetails.addSortableColumn("Failure", new NumberType<Integer>(), null);
opHistoryDetails.addSortableColumn("Average<br />Queue Time", new DurationType(), null);
opHistoryDetails.addSortableColumn("Std. Dev.<br />Queue Time", new NumberType<Double>(), null);
opHistoryDetails.addSortableColumn("Average<br />Time", new DurationType(), null);
opHistoryDetails.addSortableColumn("Std. Dev.<br />Time", new NumberType<Double>(), null);
opHistoryDetails.addSortableColumn("Percentage Time Spent", new ProgressChartType(totalElapsedForAll), null);
opHistoryDetails.addRow("Split", historical.split.num, historical.split.fail, null, null,
historical.split.num != 0 ? (long) (historical.split.elapsed / historical.split.num) : null, splitStdDev, historical.split.elapsed);
opHistoryDetails.addRow("Major Compaction", total.major.num, total.major.fail, total.major.num != 0 ? (long) (total.major.queueTime / total.major.num)
: null, majorQueueStdDev, total.major.num != 0 ? (long) (total.major.elapsed / total.major.num) : null, majorStdDev, total.major.elapsed);