LAT_OPS(8)

💅 lat_ops — it's giving "how parallel is my CPU actually" ✨

okay bestie, so this page lives in section 8 of the LMBENCH manual, and it's literally all about lat_ops — the tool that pokes at your CPU and finds out how much stuff it can do at once. 🧚

🌸 SYNOPSIS 🌸

lat_ops [ -W <warmups> ] [ -N <repetitions> ]

that's it. that's the whole vibe. no cap. 🫶

✨ DESCRIPTION ✨

lat_ops measures the latency of basic CPU operations — like, the really fundamental stuff, e.g. an integer ADD. she's not fancy, she's just nosy about your silicon. 💖

the numbers she reports are the maximum parallelism for each family of operations:

• integer bit, add, mul, div, mod operations — maximum parallelism for integer XOR, ADD, MUL, DIV, MOD operations. 💅
• uint64 bit, add, mul, div, mod operations — maximum parallelism for uint64 XOR, ADD, MUL, DIV, MOD operations. 🔥
• float add, mul, div operations — maximum parallelism for flot ADD, MUL, DIV operations. 🎀
• double add, mul, div operations — maximum parallelism for flot ADD, MUL, DIV operations. 🦋

like… yes, the last two say exactly the same thing. that's the lore. we don't question it. 🙈

💀 BUGS 💀

okay so real talk, no filter:

This benchmark is highly experimental and may sometimes (frequently?) give erroneous results. 😭

so when you read the output, maybe take it with a lil grain of salt, bestie. she's doing her best. 🍓

👀 SEE ALSO 👀

• lmbench(8)
• par_ops(8)

go read those too, iykyk. 🌈

👑 AUTHOR 👑

Carl Staelin and Larry McVoy — icons, legends, the main characters fr fr. 💜

and listen: "Comments, suggestions, and bug reports are always welcome." so if you've got thoughts, they want them. periodt. ⭐

and that's a wrap on lat_ops from the LMBENCH manual, copyright (c) 2000 Carl Staelin and Larry McVoy, $Date$ and all — mwah, slay, go measure some parallelism 💖✨