PROBE::SCHEDULER.C(3stap)

💖 NAME 💖

probe::scheduler.cpu_on — bestie, this is the probe that fires when a process is beginning execution on a cpu. Like, the moment it gets handed the aux cord and starts vibing on that core. ✨

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🦋 SYNOPSIS 🦋

probe scheduler.cpu_on {}

No args, no drama, she just shows up. Periodt.

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🌸 VALUES 🌸

Okay so when this probe pops off, you get these lil variables handed to you like friendship bracelets:

• idle — a boolean that tells you whether current is the idle process. So like, is this cpu literally doing nothing rn or is it serving? 🫶
• name — the name of the probe point. Yes ma'am, that's just her name. 💅
• task_prev — the process that was previously running on this cpu. The ex, if you will. The one who had the cpu before the glow-up. 😭

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🎀 CONTEXT 🎀

The resuming process. That's the main character here — the one waking back up and getting on the cpu. main character energy fr fr 👑

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🌈 SEE ALSO 🌈

• tapset::scheduler(3stap) — go read the whole scheduler tapset bestie, it's giving family reunion 💜

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and that's the whole page, no cap 💖 this was the SystemTap Tapset Reference, September 2026 era 🗓️✨