STRUCT COUNTER_EVENT(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

πŸ’… struct counter_event(9) β€” like, the whole vibe of a counter event, explained

okay so bestie, welcome to struct counter_event(9) from the Kernel API Manual β€” this is the little struct that holds counter event data, and honestly? she's doing a lot with very few fields. iconic behavior. let's get into it 🫢


✨ NAME ✨

struct counter_event β€” counter event data. that's it, that's the whole name, and she ate πŸ’…


🌸 SYNOPSIS 🌸

here's the struct in all her glory β€” literally copy this exactly, no cap:

struct counter_event {
    __aligned_u64 timestamp;
    __aligned_u64 value;
    struct counter_watch watch;
    __u8 status;
 };

four members, zero notes. she's lowkey minimalist and we respect it ✨


πŸŽ€ Members πŸŽ€

okay so like, each of these is a whole personality. let's go one by one:

  • timestamp β€” the best estimate of the time the event actually occurred, measured in nanoseconds. bestie said "best estimate" because time is fake and clocks are messy 😭 but fr fr, nanoseconds, that's the unit.
  • value β€” the component value. that's the actual number you came here for πŸ’–
  • watch β€” the component watch configuration. this is the struct counter_watch situation, iykyk.
  • status β€” the return status, expressed as a system error number. so if something went sideways, this is where the tea is πŸ“
no extra fields, no surprise guests. what you see is what you get β€” periodt.

πŸ¦‹ SEE ALSO πŸ¦‹

go touch grass in the kernel source, bestie β€” these are the related reads:

  • Kernel file ./include/uapi/linux/counter.h
  • struct counter_component(9)
  • struct counter_watch(9)

πŸ‘‘ cute sign-off πŸ‘‘

this whole page lives in ./include/uapi/linux, and it was dated October 2026 β€” so yeah, she's from the future and she's still serving struct realness 🌈✨

now go forth and read your counter events, bestie. you're literally a kernel girl now πŸ’œπŸ§š

πŸ“¦ where this page comes from