public async Task Execute(IJobExecutionContext context) { var agents = _agentsRepository.GetActiveAgents(); // асинхронно собираем метрики var listMetrics = await Task.WhenAll(agents.Select(async agent => { var toTime = DateTimeOffset.UtcNow; var fromTime = _metricsRepository.GetDateUpdate(agent.Id); var response = await GetMetricsByPeriod(agent, fromTime, toTime); return(response.Select(metric => new RamMetric() { AgentId = agent.Id, Time = metric.Time, Value = metric.Value })); })); // сохраняем метрики foreach (var metrics in listMetrics) { foreach (var metric in metrics) { _metricsRepository.Create(metric); } } }