protected static long parseAsLong(String number) {
      long l = 0L;
      try {
        l = Long.parseLong(number);
      } catch (NumberFormatException ignore) {
      }
      return l;
    }
@return the number of running processes on the system
geode-core/src/main/java/org/apache/geode/internal/statistics/platform/LinuxProcFsStatistics.java