On Wed, Apr 8, 2015 at 8:43 AM, Kevin Traynor <kevin.tray...@intel.com> wrote:
> Change eth rx burst size from 192 to 32. This significantly
> improves performance for packets that will be forwarded
> through dpdkvhost ports, as the max dpdkvhost tx burst
> size (32) will not be exceeded. There are negligible
> effects in other scenarios.
>
> Signed-off-by: Kevin Traynor <kevin.tray...@intel.com>
Daniele,
You mentioned that you are going to fix the issue by handling
different burst size of vhost devices. Do you have the fix?
> ---
> lib/netdev-dpdk.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/lib/netdev-dpdk.c b/lib/netdev-dpdk.c
> index f69154b..eb51072 100644
> --- a/lib/netdev-dpdk.c
> +++ b/lib/netdev-dpdk.c
> @@ -145,7 +145,7 @@ static const struct rte_eth_txconf tx_conf = {
> .txq_flags = ETH_TXQ_FLAGS_NOMULTSEGS|ETH_TXQ_FLAGS_NOOFFLOADS,
> };
>
> -enum { MAX_RX_QUEUE_LEN = 192 };
> +enum { MAX_RX_QUEUE_LEN = 32 };
> enum { MAX_TX_QUEUE_LEN = 384 };
> enum { DPDK_RING_SIZE = 256 };
> BUILD_ASSERT_DECL(IS_POW2(DPDK_RING_SIZE));
> --
> 1.7.4.1
>
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