libnvme(2)

✨ NAME ✨

enum nvme_nvmset_pl_events — the Predictable Latency Per NVM Set Log, Event Type 💅

okay so bestie, this is literally the enum that names every event type you can find in that log. it's giving "small file, big feelings". no cap.

This page lives in the libnvme(2) API Manual, so you know it's the real deal 🫶

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🌸 SYNOPSIS 🌸

enum nvme_nvmset_pl_events {
    NVME_NVMSET_PL_EVENT_DTWIN_READ_WARN ,
    NVME_NVMSET_PL_EVENT_DTWIN_WRITE_WARN ,
    NVME_NVMSET_PL_EVENT_DTWIN_TIME_WARN ,
    NVME_NVMSET_PL_EVENT_DTWIN_EXCEEDED ,
    NVME_NVMSET_PL_EVENT_DTWIN_EXCURSION

};

like… she's just a list of five constants and that's the whole vibe 💖

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🎀 Constants 🎀

• NVME_NVMSET_PL_EVENT_DTWIN_READ_WARN — DTWIN Reads Warning. your reads are wandering out of the chill zone, bestie, consider this your lil heads-up 👀
• NVME_NVMSET_PL_EVENT_DTWIN_WRITE_WARN — DTWIN Writes Warning. same energy but for writes ✍️ the write workload is lowkey not behaving.
• NVME_NVMSET_PL_EVENT_DTWIN_TIME_WARN — DTWIN Time Warning. time's ticking, the DTWIN window is getting a warning of its own ⏰
• NVME_NVMSET_PL_EVENT_DTWIN_EXCEEDED — Autonomous transition from DTWIN to NDWIN due to typical or maximum value exceeded 🔥 the device went and did the switch by itself because a typical or maximum value got blown past. main character decision-making, honestly.
• NVME_NVMSET_PL_EVENT_DTWIN_EXCURSION — Autonomous transition from DTWIN to NDWIN due to Deterministic Excursion 💀 again the device flips from DTWIN to NDWIN all on its own, this time because of a Deterministic Excursion. not me learning new vocabulary from a storage spec.

ngl the two "Autonomous transition" ones are the dramatic ones — the drive doesn't ask, it just moves. 🐛✨

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and that's the whole page, she's short but she ate 💅 written for the libnvme(2) manual, dated July 2026, and the source is libnvme(2) itself — periodt, love u, go read your logs 🌈