xen-netback: process guest rx packets in batches
Instead of only placing one skb on the guest rx ring at a time, process a batch of up-to 64. This improves performance by ~10% in some tests. Signed-off-by: David Vrabel <david.vrabel@citrix.com> [re-based] Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
7c0b1a23e6
commit
98f6d57ced
|
@ -399,7 +399,7 @@ static void xenvif_rx_extra_slot(struct xenvif_queue *queue,
|
|||
BUG();
|
||||
}
|
||||
|
||||
void xenvif_rx_action(struct xenvif_queue *queue)
|
||||
void xenvif_rx_skb(struct xenvif_queue *queue)
|
||||
{
|
||||
struct xenvif_pkt_state pkt;
|
||||
|
||||
|
@ -425,6 +425,19 @@ void xenvif_rx_action(struct xenvif_queue *queue)
|
|||
xenvif_rx_complete(queue, &pkt);
|
||||
}
|
||||
|
||||
#define RX_BATCH_SIZE 64
|
||||
|
||||
void xenvif_rx_action(struct xenvif_queue *queue)
|
||||
{
|
||||
unsigned int work_done = 0;
|
||||
|
||||
while (xenvif_rx_ring_slots_available(queue) &&
|
||||
work_done < RX_BATCH_SIZE) {
|
||||
xenvif_rx_skb(queue);
|
||||
work_done++;
|
||||
}
|
||||
}
|
||||
|
||||
static bool xenvif_rx_queue_stalled(struct xenvif_queue *queue)
|
||||
{
|
||||
RING_IDX prod, cons;
|
||||
|
|
Loading…
Reference in a new issue