How do I measure p99 and p90 latency for external API calls?

[revmag]

Answer

There are two main ways to measure p99 and p90 latency for external API calls in SigNoz:

Method 1: Using External API Monitoring

1. Go to the External API Monitoring section
2. Select the domain you want to monitor
3. In the pop-up window, select "Endpoint Stats"
4. Here you can view the p99 latency metrics

Method 2: Using Traces Explorer

1. Navigate to the Traces Explorer
2. Use the query builder with the following query: kind_string = 'Client' AND http_url EXISTS
3. Choose the aggregation type (p90 or p99) for duration_nano
4. Group by your preferred parameter
5. Save this view for easier future access

For more information about kind_string values and usage, refer to the ClickHouse traces query documentation and the OpenTelemetry span specifications.

[github-actions]

Opened PR: #2685