!7

p {
  int processID = nempty(args) ? parseInt(first(args)) : processID_int();
  S text = loadTextFile("/proc/" + processID + "/smaps");
  MultiMap<S> mm = colonPropertiesToCIMultiMap(text);
  //pnl(mm.get("rss"));
  long rss = 0;
  for (S s : mm.get("rss"))
    rss += parseFirstLong(s);
  print("RSS: " + rss);
}