func: void throttle_account(ThrottleState *ts, bool is_write, uint64_t size)
  
  {
  
      double units = 1.0;
  
  
  
      /* if cfg.op_size is defined and smaller than size we compute unit count */
  
      if (ts->cfg.op_size && size > ts->cfg.op_size) {
  
          units = (double) size / ts->cfg.op_size;
  
      }
  
  
  
      ts->cfg.buckets[THROTTLE_BPS_TOTAL].level += size;
  
      ts->cfg.buckets[THROTTLE_OPS_TOTAL].level += units;
  
  
  
      if (is_write) {
  
          ts->cfg.buckets[THROTTLE_BPS_WRITE].level += size;
  
          ts->cfg.buckets[THROTTLE_OPS_WRITE].level += units;
  
      } else {
  
          ts->cfg.buckets[THROTTLE_BPS_READ].level += size;
  
          ts->cfg.buckets[THROTTLE_OPS_READ].level += units;
  
      }
  
  }
  