Feature Request: Flame Graph and Slow Leaf Spans

[gabrielmoreira]

Hi,

I am developing a tool called QDK, which synthesizes configurations for JavaScript and TypeScript projects. While working on this, I faced the challenge of monitoring performance effectively.

To tackle this, I integrated OpenTelemetry tracing, as it offers a straightforward solution. During my search for a visualization tool, I discovered the otel-desktop-viewer. Its simplicity and direct approach matched what I needed for tracing visualization.

However, I feel that there are a couple of enhancements that could make a significant difference.

• First, adding a flame graph would help visualize/navigate performance more effectively, similar to what I found in another tool, SigNoz.
• Second, I would like to see the slowest leaf spans to better identify performance bottlenecks.

For more context, you can check my QDK - tracing.md, which includes a screenshot comparing the otel-desktop-viewer and SigNoz. This practical usage example might be interesting for your reference. You can also find the QDK project here.

Thank you for considering these suggestions. I appreciate your support!