rte_branch_prediction.h3
Detailed Description
Branch Prediction Helpers in RTE
Definition in file rte_branch_prediction.h.
Macro Definition Documentation
#define likely(x) __builtin_expect(!!(x), 1)
Check if a branch is likely to be taken.
This compiler builtin allows the developer to indicate if a branch is likely to be taken. Example:
if (likely(x > 1)) do_stuff();
Definition at line 26 of file rte_branch_prediction.h.
#define unlikely(x) __builtin_expect(!!(x), 0)
Check if a branch is unlikely to be taken.
This compiler builtin allows the developer to indicate if a branch is unlikely to be taken. Example:
if (unlikely(x < 1)) do_stuff();
Definition at line 43 of file rte_branch_prediction.h.