LLVM-PROFGEN(1)

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version 12.0.1 · 4 versions
, in fedora 43, fedora 44

💖 LLVM-PROFGEN(1) 💖

okay bestie, welcome to the llvm-profgen page — that's section 1 of the LLVM manual, and it's literally the LLVM SPGO profile generation tool. yes that's a lot of acronyms, we'll get there 🫶

✨ NAME ✨

llvm-profgen — LLVM SPGO profile generation tool

no cap, that's the whole name section, short and iconic 👑

🌸 SYNOPSIS 🌸

llvm-profgen [commands] [options]

🦋 DESCRIPTION 🦋

so the llvm-profgen utility generates a profile data file from given perf script data files, for sample-based profile guided optimization (SPGO). that's the whole vibe: you give it perf traces, it gives you a profile. slay 💅

🎀 COMMANDS 🎀

at least one of the following commands are required — so like, you gotta pick one, fr fr:

  • --perfscript=<string[,string,...]> — the path of the perf-script trace, created by the Linux perf tool with the script command. important: the raw perf.data should be profiled with -b. don't forget the -b, bestie, it matters 😭
  • --binary=<string[,string,...]> — the path of the input profiled binary files. yes, plural, you can comma-separate them 💖
  • --output=<string> — the path of the output profile file. this is where your hard work lands ✨

🌈 OPTIONS 🌈

llvm-profgen supports the following options:

  • --format=[text|binary|extbinary|compbinary|gcc] — specify the format of the generated profile. the supported <format> values are text, binary, extbinary, compbinary, gcc — see llvm-profdata for more descriptions of the format. go read that one too, iykyk 📚
  • --show-mmap-events — print mmap events. that's it. that's the whole thing 🔥
  • --show-disassembly — print disassembled code. assembly reveal era 💀
  • --x86-asm-syntax=[att|intel] — specify whether to print assembly code in AT&T syntax (which is the default, jsyk) or Intel syntax. pick your fighter ⚔️

👑 AUTHOR 👑

maintained by the LLVM Team (https://llvm.org/). they're the main characters, honestly 🫶

2003-2024, LLVM Project

and that's a wrap, bestie 🌸 this page was page 12, dated 2024-07-18, from LLVM-PROFGEN(1) — go forth and profile, you absolute legend 🎀✨

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