PMAP_RESIDENT_COUNT(9)

💖 PMAP_RESIDENT_COUNT — bestie edition 💖

okay so you're here for pmap_resident_count and pmap_wired_count, two lil macros in the Kernel Developer's Manual section 9 that hand you page resident + wiring statistics. no cap. let's get into it 🫶

✨ NAME ✨

pmap_resident_count, pmap_wired_count — return page resident and wiring statistics

🌸 SYNOPSIS 🌸

#include <sys/param.h>
#include <vm/vm.h>
#include <vm/pmap.h>

long
pmap_resident_count(pmap_t pmap);

long
pmap_wired_count(pmap_t pmap);

💅 DESCRIPTION 💅

okay so here's the tea, bestie: the pmap_resident_count() and pmap_wired_count() macros exist so that pmap consumers can retrieve statistics from the pm_stats member of the machine-dependent structure struct pmap. that's it, that's the whole vibe. the way they just let you peek at the stats?? iconic. 🔥

🧚 IMPLEMENTATION NOTES 🧚

Both of these are defined as in-line macros — not full-on functions, just little macros doing their thing ✨

And the members they access? Type long. periodt.

⭐ RETURN VALUES ⭐

• pmap_resident_count() returns the number of pages in the physical map pmap which are currently resident in main memory 💖
• pmap_wired_count() returns the number of pages in the physical map pmap which are currently wired into in main memory 🌈

👑 SEE ALSO 👑

• pmap(9)

🎀 AUTHORS 🎀

This manual page was written by Bruce M Simpson <bms@spc.org>. thank you for your service king 🫡💜

and that's the whole page, bestie 💅 this one shipped with Debian and is dated July 21, 2003 — yeah, it's old enough to have its own nostalgic tumblr era, but the info still slaps ✨ go read pmap(9) next, iykyk 🦋🍓