aggr_cpu_id__socket(9)

💅 aggr_cpu_id__socket(9) — the kernel API manual, but make it make sense

okay so bestie, welcome to aggr_cpu_id__socket, straight out of the kernel API manual (section 9, kernel developer girly territory ✨). This one's a tiny little function with main character energy — it builds you an aggr_cpu_id with the socket field already filled in from the cpu you hand it. Iconic, low effort, high payoff. 🎀

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🌸 NAME

aggr_cpu_id__socket — create an aggr_cpu_id with the socket populated with the socket for cpu. The function signature is compatible with aggr_cpu_id_get_t. no cap, that's literally the whole job 🫶

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✨ SYNOPSIS

struct aggr_cpu_id aggr_cpu_id__socket (struct perf_cpu cpu , void *data );

that's it. that's the whole vibe check. 🦋

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🧚 ARGUMENTS

• cpu — -- undescribed -- 🙈 the manual literally gives us nothing here, so we're not gonna invent lore. It's a struct perf_cpu, it's your cpu, it goes in.
• data — -- undescribed -- 💀 also undescribed, also a void *, also just vibing. We do not speculate. We do not make things up. Periodt.

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🔥 SEE ALSO

the whole friend group, assembled 🌈 — all these live in the kernel file ./tools/perf/util/cpumap.h:

• cpu_map__is_dummy(9)
• cpu__get_node(9)
• cpu__get_socket_id(9)
• cpu__get_die_id(9)
• cpu__get_cluster_id(9)
• cpu__get_core_id(9)
• cpu_aggr_map__empty_new(9)
• cpu_aggr_map__new(9)
• aggr_cpu_id__die(9)
• aggr_cpu_id__cluster(9)
• aggr_cpu_id__core(9)
• aggr_cpu_id__node(9)
• aggr_cpu_id__global(9)

like, the full aggr_cpu_id cinematic universe 👑 iykyk.

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quick reminder bestie: cpu and data are both marked -- undescribed -- in the original — no guessing, no fanfic, no "well actually I think it does…". we keep it honest. 💜

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and that's the page! 🍓 brought to you by the source at ./tools/perf/util, dated October 2026 — mwah, sending you a little 💖 from the kernel tree. slay safe out there! ✨