On 2/3/2018 3:11 AM, Mallesh Koujalagi wrote:
> After bulk allocation and freeing of multiple mbufs increase more than ~2%
> throughput on single core.
>
> Signed-off-by: Mallesh Koujalagi <malleshx.koujal...@intel.com>
> ---
> drivers/net/null/rte_eth_null.c | 16 +++++++---------
> 1 file changed, 7 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/net/null/rte_eth_null.c b/drivers/net/null/rte_eth_null.c
> index 9385ffd..247ede0 100644
> --- a/drivers/net/null/rte_eth_null.c
> +++ b/drivers/net/null/rte_eth_null.c
> @@ -130,10 +130,11 @@ eth_null_copy_rx(void *q, struct rte_mbuf **bufs,
> uint16_t nb_bufs)
> return 0;
>
> packet_size = h->internals->packet_size;
> +
> + if (rte_pktmbuf_alloc_bulk(h->mb_pool, bufs, nb_bufs) != 0)
> + return 0;
> +
> for (i = 0; i < nb_bufs; i++) {
> - bufs[i] = rte_pktmbuf_alloc(h->mb_pool);
> - if (!bufs[i])
> - break;
> rte_memcpy(rte_pktmbuf_mtod(bufs[i], void *), h->dummy_packet,
> packet_size);
> bufs[i]->data_len = (uint16_t)packet_size;
> @@ -149,18 +150,15 @@ eth_null_copy_rx(void *q, struct rte_mbuf **bufs,
> uint16_t nb_bufs)
> static uint16_t
> eth_null_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
> {
> - int i;
> struct null_queue *h = q;
>
> if ((q == NULL) || (bufs == NULL))
> return 0;
>
> - for (i = 0; i < nb_bufs; i++)
> - rte_pktmbuf_free(bufs[i]);
> + rte_mempool_put_bulk(bufs[0]->pool, (void **)bufs, nb_bufs);
Is it guarantied that all mbufs will be from same mempool?
> + rte_atomic64_add(&h->tx_pkts, nb_bufs);
>
> - rte_atomic64_add(&(h->tx_pkts), i);
> -
> - return i;
> + return nb_bufs;
> }
>
> static uint16_t
>
