Speedscope ⭐

Schema

File Format: JSON

Timestamping: Timestamped

Profilers 🔎

4 Profilers directly output this format:

• BenchmarkDotNet [Docs]
• dotnet-trace [Docs]
• py-spy [Docs]
• rbspy [Docs]

Analysis UIs 📊

1 Analysis UIs can read this format:

• Speedscope

Profiler & Analysis UI Graph

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Converters

Converts From

This format is directly convertable from 4 formats:

• Austin, via austin2speedscope [Docs]
• GHC Profiler JSON, via hs-speedscope [Docs]
• JFR, via jfrtofp --mode speedscope [Docs]
• ruby-prof, via RubyProf::SpeedscopePrinter [Docs]

Transitive Formats

Transitive formats you can convert from:

• Data Formats Only
• Profilers + Data Formats (large graph)

Converts To

This format is directly convertable to 0 formats.