[dpdk-dev] [PATCH] net/null: Support bulk alloc and free.
Mallesh Koujalagi
malleshx.koujalagi at intel.com
Sat Feb 3 04:11:50 CET 2018
After bulk allocation and freeing of multiple mbufs increase more than ~2%
throughput on single core.
Signed-off-by: Mallesh Koujalagi <malleshx.koujalagi at 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);
+ rte_atomic64_add(&h->tx_pkts, nb_bufs);
- rte_atomic64_add(&(h->tx_pkts), i);
-
- return i;
+ return nb_bufs;
}
static uint16_t
--
2.7.4
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