Displaying 2 results from an estimated 2 matches for "a65779c6d72f".
2018 Nov 15
0
[PATCH net-next 2/2] tuntap: free XDP dropped packets in a batch
..._net) + XDP_DROP shows 3.8% improvement.
Before: 4.71Mpps
After : 4.89Mpps
Signed-off-by: Jason Wang <jasowang at redhat.com>
---
drivers/net/tun.c | 29 ++++++++++++++++++++++++++---
1 file changed, 26 insertions(+), 3 deletions(-)
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index a65779c6d72f..e90a7923a5f6 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -188,6 +188,11 @@ struct tun_file {
struct xdp_rxq_info xdp_rxq;
};
+struct tun_page {
+ struct page *page;
+ int count;
+};
+
struct tun_flow_entry {
struct hlist_node hash_link;
struct rcu_head rcu;
@@ -2377,9 +2382...
2018 Nov 15
3
[PATCH net-next 1/2] vhost_net: mitigate page reference counting during page frag refill
We do a get_page() which involves a atomic operation. This patch tries
to mitigate a per packet atomic operation by maintaining a reference
bias which is initially USHRT_MAX. Each time a page is got, instead of
calling get_page() we decrease the bias and when we find it's time to
use a new page we will decrease the bias at one time through
__page_cache_drain_cache().
Testpmd(virtio_user +