STRUCT EVENT_ENABLE_TIMER(9)

🎀 struct event_enable_timer(9) 🎀

okay so bestie, this is a page from the Kernel API Manual and it's about struct event_enable_timer — the literal control structure for perf record -D/--delay. she's niche but she's iconic 💅

---

✨ NAME ✨

struct event_enable_timer — the control structure for perf record -D/--delay. no cap, that's literally her whole job 🫶

---

🌸 SYNOPSIS 🌸

struct event_enable_timer {
    struct evlist *evlist;
    struct event_enable_time *times;
    size_t times_cnt;
    int timerfd;
    int pollfd_pos;
    size_t times_step;
 };

---

💖 Members 💖

• evlist — the event list, bestie. that's it, that's the vibe 🌈
• times — the time ranges that events are enabled. N.B. this is also accessed as an array of int, which is giving unhinged dual citizenship but okay 😭
• times_cnt — the number of time ranges. the count. the census. 📋
• timerfd — the timer file descriptor 🔥
• pollfd_pos — position in the evlist array of file descriptors to poll (that's the fdarray, iykyk) 👑
• times_step — the current position in (int *)times)[] — refer to event_enable_timer__process 🦋

---

🧚 Description 🧚

ok so read this before you @ me: this structure is only used when there are time ranges. if you've only got an initial delay, she's not invited to the party, no cap 💀

---

⭐ SEE ALSO ⭐

• Kernel file ./tools/perf/util/evlist.c evlist__set_id_pos(9)
• evlist__mmap_ex(9)
• struct event_enable_time(9)
• evlist__warn_user_requested_cpus(9)

---

mwah 💋 that's the whole page, bestie — shipped from ./tools/perf/util, dated October 2026, and this little struct event_enable_timer(9) manual page is the moment. periodt. 🌸💜