STRUCT DMC_COUNT_CHANNEL(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

πŸ’– struct dmc_count_channel(9) πŸ’–

okay so bestie, welcome to the Kernel API Manual β€” yes that's the manual name, we're being official today πŸ’… β€” and today's main character is struct dmc_count_channel, which is literally just a little vibe-holder for counter values coming out of the DDR controller. it holds numbers. that's the whole job. and it does it flawlessly. periodt. ✨


✨ SYNOPSIS ✨

here's the whole thing, no gatekeeping, copy-paste ready 🫢:

struct dmc_count_channel {
    u64 access;
    u64 clock_cycles;
    u64 read_access;
    u64 write_access;
 };

four u64 fields. that's it. that's the struct. she's compact, she's efficient, she's an icon πŸ‘‘.


🌸 Members 🌸

  • access β€” the number of read and write accesses, like, combined. both of them. together. one number to rule them πŸ’«
  • clock_cycles β€” DDR clock cycles πŸ•°οΈ the raw ticking, the heartbeat, the metronome of the memory controller
  • read_access β€” number of read accesses πŸ“ just the reads, bestie, kept separate
  • write_access β€” number of write accesses πŸ¦‹ and here's the writes, living their own best life in their own field

ngl the way access is reads+writes and then there are also separate read_access and write_access fields? it's giving "have your cake and eat it too" and honestly? obsessed 😭


πŸ”₯ SEE ALSO πŸ”₯

  • Kernel file ./drivers/devfreq/event/rockchip-dfi.c β€” go look at the source, iykyk πŸ‘€
fr fr if you're poking at DDR counters, this struct is your girl. treat her well πŸ™ˆ

and that's the whole page, bestie πŸ’œ this was the Kernel API Manual entry for struct dmc_count_channel(9), coming to you from ./drivers/devfreq/event, dated October 2026 β€” slay, iconic, no notes πŸŒˆβ­πŸŽ€

πŸ“¦ where this page comes from