PROBE::IOSCHEDULER_TRACE.ELV_ISSUE_REQUEST(3stap)

✨ NAME ✨

probe::ioscheduler_trace.elv_issue_request — Fires when a request is

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🌸 SYNOPSIS 🌸

probe ioscheduler_trace.elv_issue_request {}

That's it bestie, no args, she just vibes 🦋

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💖 VALUES 💖

okay so when this probe fires she hands you a whole little goodie bag of info, and here's every single thing in it 🎀

• disk_major — the disk major no of request. yeah. the major number. that one.
• rq — address of request. like, where the request lives in memory, her whole address fr 📍
• name — name of the probe point 💅
• rq_flags — request flags. the flags. on the request. iconic.
• disk_minor — disk minor number of request. the little sibling of the major number, no cap.
• elevator_name — the type of I/O elevator currently enabled. yes queen, tell us which elevator we're riding 🛗✨

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🦋 DESCRIPTION 🦋

scheduled.

like that's the whole thing. the request gets scheduled, the probe fires, you get your values. periodt 💅

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🎀 SEE ALSO 🎀

• tapset::ioscheduler(3stap) — go read this one too, it's giving lore 📚

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and that's the whole page bestie, mwah 💜

this was pulled from the SystemTap Tapset Reference, Ver, dated September 2026 — so yeah, stay hydrated, read your tapset docs, and go touch some grass 🌱🫶