Use Lightstep to monitor your app for performance.
Create Streams to view historical span and trace data and monitor your services.
Use Lightstep to monitor service performance after a deployment to catch regressions and other issues quickly.
You can create thresholds on Streams that when crossed, send alerts to everyone that needs to know about it. Thresholds can be set for an error percentile, latency, or operations per second, on any operation within your distributed system.