aggr_cpu_id__die(9)

💅 aggr_cpu_id__die

okay so bestie, welcome to the Kernel API Manual ✨ — today's main character is aggr_cpu_id__die, and honestly? she's a little underrated. no cap.

🌸 NAME

aggr_cpu_id__die — Create an aggr_cpu_id with the die and socket populated with the die and socket for cpu. The function signature is compatible with aggr_cpu_id_get_t. 💖

like literally that's her whole job and she does it flawlessly, periodt.

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✨ SYNOPSIS

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

she takes two things and hands you back a whole struct aggr_cpu_id 🎀 — the way that she just does that, iconic.

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🦋 ARGUMENTS

• cpu — -- undescribed -- 🙈 bestie the docs really said "no thoughts, head empty" on this one. it's a struct perf_cpu, that much we know.
• data — -- undescribed -- 😭 same energy. also undescribed. we're all just vibing with the mystery here, ngl.

fr fr though — if you were hoping for a deep dive on these two, the manual is giving us nothing. that's just how it is. 🫶

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👑 SEE ALSO

the whole squad lives in the kernel file ./tools/perf/util/cpumap.h — go say hi to the rest of the friend group:

• 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__socket(9)
• aggr_cpu_id__cluster(9)
• aggr_cpu_id__core(9)
• aggr_cpu_id__node(9)
• aggr_cpu_id__global(9)

the way they all showed up for the cross-reference section… found family energy fr 🌈💜

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and that's a wrap bestie! 🎀 this lil page came to you straight from ./tools/perf/util, dated October 2026 — hug it, love it, reference it responsibly. mwah 💋✨