STRUCT PAGE_POOL_ALLOC_STATS(9)

✨ NAME ✨

okay so this is struct page_..._alloc_stats(9) — straight out of the Kernel API Manual, bestie — and it's literally the allocation statistics glow-up for page pools. it's giving receipts for every alloc path 💅

🦋 SYNOPSIS 🦋

struct page_pool_alloc_stats {
    u64 fast;
    u64 slow;
    u64 slow_high_order;
    u64 empty;
    u64 refill;
    u64 waive;
 };

no cap, that's the whole struct — six u64 counters and they all have main character energy ✨

🎀 Members 🎀

• fast — the successful fast path allocations, aka the ones that ate and left no crumbs 🔥
• slow — slow path order-0 allocations. lowkey the humble ones but they still show up 💖
• slow_high_order — slow path high order allocations. highkey fancy, high order, high vibes 👑
• empty — the ptr ring is empty, so a slow path allocation was forced. not me showing up to an empty ring 😭
• refill — an allocation which triggered a refill of the cache. snack break for the cache, fr fr 🍓
• waive — pages obtained from the ptr ring that cannot be added to the cache due to a NUMA mismatch. it's giving "you can't sit with us" 💀

🌈 SEE ALSO 🌈

Kernel file ./include/net/page_pool/types.h — plus these iconic little cross-references:

• struct page_pool_params(9)
• struct page_pool_recycle_stats(9)
• struct page_pool_stats(9)

go read them, iykyk 🫶

and that's the vibe check, bestie. this page was brought to you by the legends over in ./include/net/page_pool, dated October 2026, and it's literally struct page_..._alloc_stats(9) — periodt 💜