PROBE::NFS.FOP.S(3stap)

💅 probe::nfs.fop.sendfile — NFS client send file operation

okay bestie, welcome to the Network File Storage Tapsets corner of the SystemTap manual, section 3stap ✨ this little page is all about one specific probe and the lil' pile of values it hands you, so let's get into it 🫶

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✨ NAME ✨

probe::nfs.fop.sendfile — the NFS client send file operation probe. that's it, that's the whole vibe 💖

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🎀 SYNOPSIS 🎀

probe nfs.fop.sendfile {}

yeah. no arguments, no options, no drama. it's giving minimal and it's iconic for that 👑

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🌸 VALUES 🌸

these are the goodies you get to peek at inside the probe. every single one, no skips, we're not gatekeeping here 💜

• cache_time — the moment we started read-caching this inode. like, when the whole caching era for this inode began 🕰️
• attrtimeo — how long the cached info is assumed to still be valid. heads up, lowkey important: we gotta revalidate the cached attrs for this inode if jiffies - read_cache_jiffies > attrtimeo. that's the rule, fr fr ⏳
• ino — inode number. the classic 🧚
• cache_valid — a cache related bit mask flag. bitmask girlies rise 🌈
• count — read bytes. that's the count of bytes read, periodt 📏
• ppos — current position of file. where we're at, literally 📍
• dev — device identifier. which device, bestie 💾

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👑 SEE ALSO 👑

• tapset::nfs(3stap) — go read the big NFS tapset page too, it's the main character of this whole universe 💅

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so that's the page 🦋 that's the whole thing. SystemTap Tapset Reference, September 2026 edition — mwah, love that for us, no cap 💖✨🎀