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Format Support: Instruments .trace file #15

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jlfwong opened this issue Apr 10, 2018 · 0 comments
Closed

Format Support: Instruments .trace file #15

jlfwong opened this issue Apr 10, 2018 · 0 comments

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@jlfwong
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jlfwong commented Apr 10, 2018

It would be awesome to get data from Instruments.app into speedscope to get nice visualizations out of XCode
@jlfwong jlfwong changed the title Import from Instruments Format Support: Instruments .trace file Apr 15, 2018
@jlfwong jlfwong mentioned this issue May 16, 2018
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jlfwong added a commit that referenced this issue May 17, 2018
@jlfwong
Support importing time profiles from Instruments .trace files (#41)
274110a 
#33 added support for importing from instruments indirectly via opening instruments and using the deep copy command. This PR adds support for importing `.trace` files directly, though only for time profiles specifically, and only for the highest sample count thread in the profile.

This PR adds `.trace` files from Instruments 9, and adds support for importing from either Instruments 8 and 9. The only major difference in the file format seems to be that Instruments 9 applies raw `zlib` compression generously throughout the file.

This PR also adds example `.trace` files for memory allocations, which are not supported for direct import. They use a totally different storage format for recording memory allocations, and I haven't yet figured out how that list of allocations references their corresponding callstack.

Lastly, this PR also adds examples from Instruments 7 since I happen to have a machine with an old version of Instruments. Import from Instruments 7 probably wouldn't be hard to add, but I haven't done that in this PR.

This currently only works in Chrome, and only via drag-and-drop of the files.

To test, drag the decompressed `simple-time-profile.trace` from https://github.com/jlfwong/speedscope/blob/6016d970b9d419f9ec6bf49326a0a6e9d9b26c0e/sample/profiles/Instruments/9.3.1/simple-time-profile.trace.zip onto speedscope.

The result should be this:

![image](https://user-images.githubusercontent.com/150329/40162338-8fa13502-5968-11e8-8fb3-40626e41884a.png)

Fixes #15
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@jlfwong