On 12/21/20 5:14 PM, Maxime Coquelin wrote:
> This series optimizes the cache usage of virtqueue struct,
> by make a "fake" mbuf being dynamically allocated in Rx
> virtnet struct, by removing a useless virtuque pointer
> into the virtnet structs and by moving a few fields
> to pack holes.
>
> With these 3 patches, the virtqueue struct size goes from
> 576 bytes (9 cachelines) to 248 bytes (4 cachelines).
>
> Maxime Coquelin (3):
> net/virtio: remove reference to virtqueue in vrings
> net/virtio: allocate fake mbuf in Rx queue
> net/virtio: pack virtuqueue struct
>
> drivers/net/virtio/virtio_ethdev.c | 46 +++++++++++--------
> drivers/net/virtio/virtio_rxtx.c | 36 +++++++--------
> drivers/net/virtio/virtio_rxtx.h | 5 +-
> drivers/net/virtio/virtio_rxtx_packed_avx.c | 14 +++---
> drivers/net/virtio/virtio_rxtx_simple.h | 2 +-
> .../net/virtio/virtio_rxtx_simple_altivec.c | 2 +-
> drivers/net/virtio/virtio_rxtx_simple_neon.c | 2 +-
> drivers/net/virtio/virtio_rxtx_simple_sse.c | 2 +-
> .../net/virtio/virtio_user/virtio_user_dev.c | 4 +-
> drivers/net/virtio/virtio_user_ethdev.c | 2 +-
> drivers/net/virtio/virtqueue.h | 24 ++++++----
> 11 files changed, 72 insertions(+), 67 deletions(-)
>
Deferring to v21.05 release.
Maxime
