[PATCH 0/2] lpm: use scalar lookupx4 on RISC-V

[Thomas Monjalon]

05/10/2026 08:30, Sun Yuechi:
> The RVV rte_lpm_lookupx4() beats the scalar version only on in-order
> cores, and only because it reads the four tbl24 entries up front.
> Patch 1 makes the scalar version do the same, patch 2 removes the RVV
> version.
> 
> lpm_perf_autotest, LookupX4, units differ per machine:
> 
>              SpacemiT X60       Sophgo SG2044       SpacemiT X100
>              (in-order)         (out-of-order)      (out-of-order)
>              rv64gc  rv64gcv    rv64gc  rva23u64    rv64gc  rva23u64
>   main       5.5     4.4 (RVV)  2.7     3.2 (RVV)   35.2    54.3 (RVV)
>   patched    2.5     2.7-3.2    2.7     2.9         34.6    41.3
> 
> Sun Yuechi (2):
>   lpm: load tbl24 entries up front in scalar lookupx4
>   lpm: use scalar lookupx4 on RISC-V

Applied, thanks.