!7

sclass FreeSystemMemory extends DynBigNumber {
  bool inGigabytes;

  S switchableFields() { ret 'inGigabytes; }
  
  start {
    setDescription("FREE SYSTEM MEMORY");
    doEveryAndNow(4000, r actualUpdate);
  }
  
  void actualUpdate {
    //time "FSM" { // usually 2 - 15 ms
      setValue(inGigabytes
        ? toG(freeSystemMemory()) + " GB"
        : toM(freeSystemMemory()) + " MB");
    //}
  }
}