trace_io_uring_cqring_wait(9)

💅 trace_io_uring_cqring_wait — Kernel API Manual ✨

okay bestie, so this one's called trace_io_uring_cqring_wait and it's a kernel API page from the Kernel API Manual — think of it as the little tracepoint hook that fires right before your program starts waiting for an available CQE. yeah. that CQE. 🎀

✨ NAME ✨

trace_io_uring_cqring_wait — the tracepoint that gets called before you start waiting for an available CQE 🦋

🌸 SYNOPSIS 🌸

void trace_io_uring_cqring_wait (void *ctx , int min_events );

🫶 ARGUMENTS 🫶

• ctx — pointer to a ring context structure 💖
• min_events — the minimal number of events to wait for ⭐

👑 DESCRIPTION 👑

so the whole vibe here is: this lets you track waiting for a CQE. that's it, that's the job. but like — it's such a useful job, because it means you can troubleshoot situations where an application wants to wait for an event that never comes 😭😭

like imagine your app just sitting there, waiting, waiting, waiting, waiting for an event that is never gonna show up. no cap, we've all been there. this tracepoint is how you catch that happening instead of just staring at a hung process wondering what went wrong 💀

💜 SEE ALSO 💜

kernel file ./include/trace/events/io_uring.h (iykyk 👀)

and the whole friend group of related tracepoints, all in their (9) era:

• trace_io_uring_create(9)
• trace_io_uring_register(9)
• trace_io_uring_file_get(9)
• trace_io_uring_queue_async_work(9)
• trace_io_uring_defer(9)
• trace_io_uring_link(9)
• trace_io_uring_fail_link(9)
• trace_io_uring_complete(9)
• trace_io_uring_submit_req(9)

okay and that's the whole page, bestie — slay 💅 this one lives over in ./include/trace/events, dated October 2026, from the damn-near-iconic Kernel API Manual. go forth and trace those waits, and remember: if your event never comes, it's not you, it's the event 🦋✨🎀