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process sample

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SStephen
Last edited Mar 26, 2015
Created on Mar 26, 2015

This example displays a call graph from a sampling process of a Node.js application, captured using the macOS `sample` command with a 3-second duration and 1-millisecond sampling interval. The visualization uses a hierarchical tree layout to render the stack traces, showing the distribution of 2,688 samples across threads and function calls. Each node represents a function frame, with edge thickness reflecting sample counts, and the graph highlights the predominance of `uv__io_poll` and `kevent` operations in the main thread. The rendering approach relies on a custom SVG-based tree diagram, likely built with D3.js's hierarchical layout, though the specific library implementation is not visible in the raw text data.

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