Set Up Performance
With performance monitoring, Sentry tracks your software performance, measuring metrics like throughput and latency, and displaying the impact of errors across multiple systems. Sentry captures distributed traces consisting of transactions and spans, which measure individual services and individual operations within those services. Learn more about our model in Distributed Tracing.
If you’re adopting Performance in a high-throughput environment, we recommend testing prior to deployment to ensure that your service’s performance characteristics maintain expectations.
Configure the Sample Rate
First, enable both
- Setting a uniform sample rate for all transactions using the
TracesSampleRateoption in your SDK config to a number between
1. (For example, to send 20% of transactions, set
- Controlling the sample rate based on the transaction itself and the context in which it's captured, by providing a function to the
The two options are meant to be mutually exclusive. If you set both,
TracesSampler will take precedence.
using Sentry; // Add this to the SDK initialization callback // Example uniform sample rate: capture 100% of transactions options.TracesSampleRate = 1.0;
Learn more about how the options work in Sampling Transactions.
While you're testing, set
1.0, as that ensures that every transaction will be sent to Sentry.
Once testing is complete, you may want to set a lower
TracesSampleRate value, or switch to using
TracesSampler to selectively sample and filter your transactions, based on contextual data.
Our documentation is open source and available on GitHub. Your contributions are welcome, whether fixing a typo (drat!) to suggesting an update ("yeah, this would be better").