PROBE::NFS.AOP.R(3stap)

📦
version 5.6 · 9 versions
, in centos-stream 10, centos-stream 9, fedora 43, fedora 44

💖 probe::nfs.aop.readpages 💖

okay bestie, welcome to the PROBE::NFS.AOP.R page from the Network File Storage Tapsets manual (that's section 3stap, iykyk). this is the NFS client reading multiple pages era and we are obsessed. 🦋

✨ NAME ✨

probe::nfs.aop.readpages — NFS client reading multiple pages

like literally, it's giving "the NFS client is grabbing a whole handful of pages at once". no cap. 📚

✨ SYNOPSIS ✨

probe nfs.aop.readpages {}

that's it. that's the whole vibe. a probe with no arguments, standing there, main character energy. 💅

✨ VALUES ✨

these are the lil variables you get to peek at inside the probe. collect them all like they're stickers 🎀

  • ino — the inode number 🧚
  • file — the filp argument
  • size — how many pages it attempted to read in this execution
  • rpages — read size, measured in pages
  • rsize — read size, measured in bytes (yes bestie, bytes, different unit, same read)
  • dev — the device identifier
  • nr_pages — number of pages attempted to read in this execution (yeah, same description as size, they're twins, not my business 💀)

✨ DESCRIPTION ✨

Fires when in readahead way, read several pages once.

translation: this probe goes off when the kernel is doing readahead and decides to read several pages in one go. it's a "grab a bunch at once" moment, not a "one page at a time" moment. slay. 🔥

✨ SEE ALSO ✨

go read that one too, bestie, it's the whole NFS tapset and it ate. 👑

SystemTap Tapset Reference, that September 2026 version — mwah, tysm for reading, ily, go probe something cute 💖✨🎀🦋🌸💅🫶

📦 where this page comes from