gh-146256: Add `--jsonl` collector to the `profiling.sampling`#146257

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python:mainfrom

maurycy:tachyon-ndjson-kolektor

May 5, 2026

Commits on May 5, 2026

first stab

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s/ndjson/jsonl/

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printing to stdout isn't a great idea

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even a basic test

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separate func for end record

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proper name

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test_jsonl_collector_with_location_info

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test synthetic frames

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too many new lines

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BUG? confusing... two ways to set skip_idle?

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ok, thx b4fac15613a16f9cd7b2ee32840523b399f4621f

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check if it works fine with (file, loc, func, op)

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missing new line

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filter out sync coordinator

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s/collapsed_out/jsonl_out/, less copying :D

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nicer reading

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typo

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too much copying, left-over

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just Counter

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ruff

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future-proof name

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future-proof iter for streaming

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truth to be told, this should be layer above

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helper

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reorder

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eh, just copy from heatmap

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smaller chunk; matter of taste

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test actual chunking

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test edge cases

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ruff

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match pep8

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style

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too defensive

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too many style changes

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less style

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ha! even less style...

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news

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news: proper formatting

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claim credit!

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fixup! claim credit!
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fixup! fixup! claim credit!
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Commits on May 5, 2026