scx_rescue_check_overload(9)

okay bestie, welcome to scx_rescue_check_overload(9) from the Kernel API Manual — section 9, kernel API vibes, no cap ✨💅

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🌸 NAME 🌸

scx_rescue_check_overload — Eject the top rescue consumer on a stuck rescue 🎀🔥

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✨ SYNOPSIS ✨

void scx_rescue_check_overload (struct rq *rq );

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🎀 ARGUMENTS 🎀

• rq — the rq whose rescue timer fired 🔥 like, that's the whole argument, bestie

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💖 DESCRIPTION 💖

okay so picture this: the oldest waiter on rq's rescue DSQ has been queued for too long 😭 which means rescue demand on this cpu persistently exceeds the configured bandwidth 💀

so instead of letting the scheduler stall path blame the waiter's owner — who may just be crowded out 🙈 — this thing ejects the sub with the highest recent rescue consumption. periodt. 👑✨

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🦋 SEE ALSO 🦋

Kernel file ./kernel/sched/ext/sub.c — that's the source file, bestie 📁💖

• scx_skip_subtree_pre(9)
• scx_next_descendant_pre(9)
• scx_rescue_charge(9)
• scx_rescue_end(9)
• scx_rescue_keep(9)
• scx_rescue_accrue(9)
• scx_rescue_admit(9)
• scx_rescue_try_admit(9)
• scx_rescue_timerfn(9)
• scx_resolve_local_dsq(9)
• queue_sync_ecaps(9)
• scx_process_sync_ecaps(9)
• scx_unbypass_replay_ecaps(9)
• scx_discard_stale_ecaps_syncs(9)
• scx_rehome_task(9)
• scx_punt_task(9)
• scx_cgroup_claim_subtree(9)
• scx_cgroup_return_subtree(9)
• scx_cgroup_task_migrating(9)
• scx_cgroup_task_migrated(9)
• scx_cgroup_task_migrate_canceled(9)
• scx_bpf_sub_dispatch(9)
• scx_bpf_sub_grant(9)
• scx_bpf_sub_revoke(9)
• scx_bpf_sub_caps(9)
• scx_bpf_sub_kill_bstr(9)

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mwah 💋 this page comes from source ./kernel/sched/ext, dated October 2026, and the footer title is scx_rescue_check_overload(9) — bye bestie, go read those SEE ALSOs, iykyk 🫶🌈⭐