update_sg_lb_stats(9)

✨ update_sg_lb_stats(9) — the Kernel API Manual glow-up ✨

Okay so bestie, welcome to the update_sg_lb_stats(9) page from the Kernel API Manual — this is the one that updates a sched_group's stats for load balancing, and honestly? It's giving main character energy in the scheduler. 💅

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🌸 NAME 🌸

update_sg_lb_stats — literally here to update a sched_group's statistics for load balancing. That's the whole vibe. No cap. 🎀

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🦋 SYNOPSIS 🦋

void update_sg_lb_stats (struct lb_env *env , struct sd_lb_stats *sds ,
struct sched_group *group , struct sg_lb_stats *sgs , bool
*sg_overloaded );

It returns void, so like… don't expect anything back, she's a giver not a receiver. 💖

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💜 ARGUMENTS 💜

• env — the load balancing environment. Your whole setup, your whole context, your whole situation. 🫶
• sds — load-balancing data with statistics of the local group. Local group stats live here, iykyk. 🏠
• group — the sched_group whose statistics are about to get updated. She's the icon getting her numbers refreshed. 👑
• sgs — variable to hold the statistics for this group. Literally the container for this group's whole statistical moment. 📊
• sg_overloaded — a bool pointer, and it means exactly what it says: the sched_group is overloaded. Too much going on, highkey relatable. 😭

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🌈 SEE ALSO 🌈

This is the friend group, the whole crew, all referenced from the kernel file ./kernel/sched/fair.c:

• update_tg_load_avg(9)
• update_cfs_rq_load_avg(9)
• attach_entity_load_avg(9)
• detach_entity_load_avg(9)
• cpu_util(9)
• sched_use_asym_prio(9)
• sched_group_asym(9)
• update_sd_pick_busiest(9)
• idle_cpu_without(9)
• update_sd_lb_stats(9)
• calculate_imbalance(9)
• sched_balance_find_src_group(9)

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Bestie reminder: sg_overloaded is a bool *, so you're passing a pointer — don't forget to actually give her something to point at, or it's giving undefined behavior and we don't do that here. 💀

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And that's the page, periodt. This beauty lives under ./kernel/sched, dated October 2026, and she ate. 💅✨🎀🦋🌸💖