public static long usedMemory() throws UninterruptiblePragma { return Conversions.pagesToBytes(Plan.getPagesUsed()).toLong();
public static Extent usedMemory() throws UninterruptiblePragma { return Conversions.pagesToBytes(Plan.getPagesUsed());
  public static long usedMemory() throws UninterruptiblePragma {    return Conversions.pagesToBytes(Plan.getPagesUsed()).toLong();  }