On Tue, 22 Sep 2020 16:21:35 +0800
Marvin Liu <yong....@intel.com> wrote:
> Data prefetch instruction can preload data into cpu’s hierarchical
> cache before data access. Virtualized data paths like virtio utilized
> this feature for acceleration. Since most modern cpus have support
> prefetch function, we can enable packet data prefetch as default.
>
> Signed-off-by: Marvin Liu <yong....@intel.com>
>
> diff --git a/config/meson.build b/config/meson.build
> index 69f2aeb605..a0c828a437 100644
> --- a/config/meson.build
> +++ b/config/meson.build
> @@ -109,6 +109,9 @@ if not is_windows
> add_project_link_arguments('-Wl,--no-as-needed', language: 'c')
> endif
>
> +# do prefetch of packet data
> +dpdk_conf.set('RTE_PMD_PACKET_PREFETCH', 1)
> +
> # use pthreads if available for the platform
> if not is_windows
> add_project_link_arguments('-pthread', language: 'c')
With meson, the project has been using rte_config.h for this.
