STRUCT CODEL_VARS(9)

💅 struct codel_vars(9) — Kernel API Manual 🎀

okay so bestie, welcome to the codel variables page ✨ this is a lil struct in the Kernel API Manual and honestly it's giving "small but runs the whole vibe" energy 👑

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🌸 NAME 🌸

struct codel_vars — bestie, it literally contains codel variables 💖 that's the whole gig. short, sweet, iconic.

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✨ SYNOPSIS ✨

here's the shape of her, exactly as she is, no cap:

struct codel_vars {
    u32 count;
    u32 lastcount;
    bool dropping;
    u16 rec_inv_sqrt;
    codel_time_t first_above_time;
    codel_time_t drop_next;
    codel_time_t ldelay;
 };

like… look at those fields. immaculate. 🦋

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🎀 Members 🎀

okay so let's go through every single one because we do NOT skip members in this house 🫶

• count — how many drops we've done since the last time we entered dropping state 💅 that's the tally, that's the receipts.
• lastcount — the count at entry to dropping state 👑 so like, the "before" photo of your count.
• dropping — set to true if in dropping state 🔥 yes queen, we're dropping.
• rec_inv_sqrt — reciprocal value of sqrt(count) >> 1 ⭐ literally what it says, don't come for me.
• first_above_time — when we went (or will go) continuously above target for interval 🌈 past tense, future tense, she does both.
• drop_next — time to drop next packet, or when we dropped last 💀 either/or, she contains multitudes.
• ldelay — sojourn time of last dequeued packet 🧚 the last one out the door.

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🦋 SEE ALSO 🦋

go read these next, bestie, they're the friend group:

• Kernel file ./include/net/codel.h
• struct codel_params(9)
• struct codel_stats(9)

iykyk 💜

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lowkey reminder: everything up there? verbatim. the fields, the types, the file path — copy them exactly, no renaming, no "fixing", no merging 🙈 that's the whole rule.

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okay that's the page!! slay 💖 this one lives in ./include/net and the version/date stamp is October 2026 — so yeah, dated October 2026, from ./include/net, periodt 🎀✨👑