Gecko Profile ⭐

Project Site

Schema

File Format: JSON

Timestamping: Timestamped

Profilers 🔎

1 Profilers directly output this format:

• Firefox Profiler

Analysis UIs 📊

2 Analysis UIs can read this format:

• Firefox Profiler
• Speedscope [Docs]

Profiler & Analysis UI Graph

[View fullscreen]

Converters

Converts From

This format is directly convertable from 3 formats:

• Event Tracing for Windows, via etw-gecko [Docs]
• Instruments.app, via Instruments To Gecko [Docs]
• Simpleperf perf.data, via gecko_profile_generator.py [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 1 formats:

• Firefox Processed Profile, via Firefox Profiler Import Pipeline

Transitive Formats

Transitive formats you can convert to:

• Data Formats Only
• Data Formats + Analysis UIs (large graph)