!7

p {
  int processID = nempty(args) ? parseInt(first(args)) : processID_int();
  S text = loadTextFile("/proc/" + processID + "/smaps");
  
  S range = null;
  new TreeMap<S, Long> rssByRange;
  for (S s : lines(text)) {
    S addr = regexpFirstGroupIC("^([0-9a-f]{1,16})-", s);
    if (addr != null) {
      addr = lpad(addr, 16, '0');
      print("Have address: " + addr);
      range = takeFirst(/*7*/6, addr);
      continue;
    } // else print("Not range: " + s);
    PairS p = parseColonProperty(s);
    if (eqic(pairA(p), "rss")) {
      long size = parseFirstLong(p.b);
      if (size != 0)
        rssByRange.put(range, getOrCreate_long(rssByRange, range) + size);
    }
  }
  //pnl(rssByRange);
  for (unpair S range, long size : mapToPairs(rssByRange))
    print("Address range " + pad(range, 16, 'x') + ": " + toK(size) + " KB");
}