setup_numa_memblock(9)

✨ setup_numa_memblock(9) ✨

okay so this is a page from the Kernel API Manual, and bestie, it's a short one but it's lowkey iconic 💅

---

🎀 NAME 🎀

setup_numa_memblock — sets up a memory layout with multiple NUMA nodes inside a dummy physical memory that was already allocated beforehand. no cap, that's literally the whole job 🫶

---

🌸 SYNOPSIS 🌸

void setup_numa_memblock (const unsigned int node_fracs[] );

yes, it returns void. it's giving "i do the work and i don't need credit" main character energy ✨

---

💖 ARGUMENTS 💖

• node_fracs — an array where each slot = the fraction of MEM_SIZE that lives in that node, measured in basis point units (that's one hundredth of 1%, or 1/10000, iykyk). for example, if node 0 should hold 1/8 of MEM_SIZE, then node_fracs[0] = 1250. math ate, honestly 🧮🔥

---

🦋 DESCRIPTION 🦋

The nids get set to 0 through NUMA_NODES - 1. that's it. that's the description. short and slay 💀👑

---

🌈 SEE ALSO 🌈

• Kernel file ./tools/testing/memblock/tests/common.c — go read it, it's right there 🍓

---

ngl this page is tiny but every single detail matters, so don't sleep on the basis points or the NUMA_NODES - 1 — those are the whole vibe check 💜

---

and that's a wrap, bestie! 🎀 this one came from the ./tools/testing/memblock/tests source, dated October 2026 — mwah, kisses, go set up those NUMA nodes 💅✨🫶