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Profile File Formats

This project incooperates several custom tailored file formats. Most notably the CPU & Memory profile format and a file format for the JIT log.

Both share the same setup:

<8-bit tag><content of 32 bytes>
<8-bit tag><content of 55 bytes>
...

The tag decides how to proceed with the content.

CPU & Memory Profile

  • Adress mapping: Matches the following pattern:

    <lang>:<symbol name>:<line>:<file>
    

    Most commonly lang will be py, but also can be n for native symbols. line is a positive integer number. file a path name, or '-' if no file could be found.