rte_branch_prediction.h(3)

💅 rte_branch_prediction.h — Library Functions Manual

okay bestie, welcome to the glow-up of rte_branch_prediction.h(3), a real page from the Library Functions Manual 🎀. it's short, it's sweet, it's literally just two macros, and honestly? they're iconic. let's get into it ✨

---

🌸 NAME 🌸

rte_branch_prediction.h

that's it. that's the name. no cap. 💖

---

🦋 SYNOPSIS 🦋

Macros

#define likely(x)
#define unlikely(x)

two macros. tiny. powerful. main character energy fr fr. 👑

---

✨ Detailed Description ✨

Branch Prediction Helpers in RTE 🧚

Definition in file rte_branch_prediction.h.

so basically this whole header is just vibes that tell your compiler which way a branch is probably gonna go. you're lowkey whispering hints into the compiler's ear and it loves that. 💜

---

🔥 Macro Definition Documentation 🔥

💫 #define likely( x)

Value:

__builtin_expect(!!(x), 1)

Check if a branch is likely to be taken.

this compiler builtin lets you (the developer, the icon, the legend) indicate that a branch is likely to be taken. Example:

if (likely(x > 1)) do_stuff();

Definition at line 26 of file rte_branch_prediction.h.

the !! is giving double-negation-chic and we're obsessed 💅✨

---

🦄 #define unlikely( x)

Value:

__builtin_expect(!!(x), 0)

Check if a branch is unlikely to be taken.

this compiler builtin lets you indicate that a branch is unlikely to be taken. Example:

if (unlikely(x < 1)) do_stuff();

Definition at line 43 of file rte_branch_prediction.h.

like yes queen, tell the compiler what's not happening 🫶

---

👑 Author

Generated automatically by Doxygen for DPDK from the source code. bestie didn't even write this by hand, it was manufactured by the machine and it still ate 😭🔥

---

aaaand that's the whole page, no crumbs left 🌈⭐ the footer of this little masterpiece says DPDK, Version 25.11.3, tied to the rte_branch_prediction.h(3) page — so go forth, predict those branches, and slay 💖🎀🦋💅