[dpdk-dev] [PATCH v2 1/2] lib/eal: add amd epyc2 memcpy routine to eal

[Stephen Hemminger]

On Tue, 19 Oct 2021 14:31:01 +0200
Thomas Monjalon <thomas at monjalon.net> wrote:

> 19/10/2021 12:47, Aman Kumar:
> > This patch provides rte_memcpy* calls optimized for
> > AMD EPYC platforms. Use config/x86/x86_amd_epyc_linux_gcc
> > as cross-file with meson to build dpdk for AMD EPYC platforms.  
> 
> Please split in 2 patches: platform & memcpy.
> 
> What optimization is specific to EPYC?
> 
> I dislike the asm code below.
> What is AMD specific inside?
> Can it use compiler intrinsics as it is done elsewhere?

And why is this not done by Gcc?