test__sample_parsing(9)

💅 test__sample_parsing(9) — like, the kernel API manual, bestie ✨

Okay so real quick before we dive in: this is test__sample_parsing from the section 9 kernel API manual, and honestly? She's a whole little vibe check for your perf sample parser. Let's get into it 🎀

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✨ NAME ✨

test__sample_parsing — test sample parsing. That's it, that's the gig, no cap 🫶

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🌸 SYNOPSIS 🌸

int test__sample_parsing (struct test_suite *test , int subtest );

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🦋 ARGUMENTS 🦋

• test — -- undescribed -- 😭 bestie the docs simply did not describe her, we don't know, it's a mystery, the lore is incomplete
• subtest — -- undescribed -- 🙈 same situation, equally mysterious, we're just reporting the facts here

ngl the original really said "undescribed" for both and left it at that. Iconic laziness, honestly 💀

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💖 DESCRIPTION 💖

So here's what this function actually does, and it ATE:

This function implements a test that synthesizes a sample event, parses it, and then checks that the parsed sample matches the original sample. Like, it makes a sample out of thin air, runs it through the parser, and then is like "okay but is this the same sample we started with" — main character energy 🔥

The test checks sample format bits separately and together, because she's thorough like that 💅

Now the important part, the grading system: if the test passes, 0 is returned. Otherwise, -1 is returned. That's the whole deal — 0 slay, -1 not slay 🌈

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⭐ SEE ALSO ⭐

• Kernel file ./tools/perf/tests/sample-parsing.c — go read the source, iykyk 👑

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Alright bestie, that's the page 💜 This cutie comes to you from the ./tools/perf/tests manual, dated October 2026 — go forth, parse those samples, and remember: 0 is the goal, -1 is the villain arc 🧚‍♀️💖