protected async Task GenerateLoad(int requests)
        {
            var           srcNumberOfItems = SourceItems.Count();
            List <string> selectedItems;
            var           randomResources = SourceItems.OrderBy(i => Guid.NewGuid());

            if (requests <= srcNumberOfItems)
            {
                selectedItems = randomResources.Take(requests).ToList();
            }
            else
            {
                var tmpList = new List <string>();
                do
                {
                    tmpList.AddRange(randomResources.Take(requests));
                    requests -= srcNumberOfItems;
                } while (requests >= 0);
                selectedItems = tmpList;
            }
            _executionsPerSecond = selectedItems.Count;
            Console.WriteLine(PrintTestProgress());
            Interlocked.Add(ref ExpectedExecutionCount, selectedItems.Count());
            await Load(selectedItems);
        }