!7

sclass ThreadMemoryAllocationRates extends DynModule {
  transient SimpleLiveValue<S> lv = stringLiveValue();
  transient Map<Long> lastValues;
  transient long lastTime;
  
  JComponent visualize() {
    ret jLiveValueTypeWriterTextArea(lv);
  }
  
  start {
    doEveryAndNow(5.0, r doIt);
  }
  
  void doIt {
    temp enter();
    if (!threadAllocatedMemoryEnabled())
      ret with lv.set("Thread memory allocation not monitored");
      
    com.sun.management.ThreadMXBean bean = advancedThreadMXBean();
    L<Thread> threads = allThreads_fast();
    long[] values = bean.getThreadAllocatedBytes(threadIDs_array(threads));
    new Map<Long> map;
    new Map<Long, S> names;
    for i over values: {
      Thread t = threads.get(i);
      long id = t.getId();
      map.put(id, values[i]);
      names.put(id, t.getName());
    }
    
    long diffTime = sysNow()-lastTime;
    lastTime = sysNow();
    if (lastValues != null) {
      new L<S> lines;
      for (Long id, value : map) {
        long diff = value - or(lastValues.get(id), 0L);
        diff = diff*1000/diffTime;
        if (diff != 0)
          lines.add(padLeft(str(toK(diff)), 9) + " K/s: " + names.get(id));
      }
      lv.set(lines(reverseSorted(lines)));
    }
    lastValues = map;
  }
}

Began life as a copy of #1016748