23/09/2020 03:51, Marvin Liu: > 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 <[email protected]> > --- > +#define RTE_PMD_PACKET_PREFETCH 1
We could also remove the related #ifdefs. What can be the drawback of always enable those prefetches?
