Re: [PATCH net-next] udp/v6: prefetch rmem_alloc in udp6_queue_rcv_skb()

2017-06-22 Thread Jesper Dangaard Brouer
On Thu, 22 Jun 2017 15:01:22 +0200 Paolo Abeni wrote: > very similar to commit dd99e425be23 ("udp: prefetch > rmem_alloc in udp_queue_rcv_skb()"), this allows saving a cache > miss when the BH is bottle-neck for UDP over ipv6 packet > processing, e.g. for small packets when a single RX NIC ingres

Re: [PATCH net-next] udp/v6: prefetch rmem_alloc in udp6_queue_rcv_skb()

2017-06-22 Thread Paolo Abeni
On Thu, 2017-06-22 at 13:44 -0400, David Miller wrote: > From: Paolo Abeni > Date: Thu, 22 Jun 2017 15:01:22 +0200 > > > very similar to commit dd99e425be23 ("udp: prefetch > > rmem_alloc in udp_queue_rcv_skb()"), this allows saving a cache > > miss when the BH is bottle-neck for UDP over ipv6 pa

Re: [PATCH net-next] udp/v6: prefetch rmem_alloc in udp6_queue_rcv_skb()

2017-06-22 Thread David Miller
From: Paolo Abeni Date: Thu, 22 Jun 2017 15:01:22 +0200 > very similar to commit dd99e425be23 ("udp: prefetch > rmem_alloc in udp_queue_rcv_skb()"), this allows saving a cache > miss when the BH is bottle-neck for UDP over ipv6 packet > processing, e.g. for small packets when a single RX NIC ingr

[PATCH net-next] udp/v6: prefetch rmem_alloc in udp6_queue_rcv_skb()

2017-06-22 Thread Paolo Abeni
very similar to commit dd99e425be23 ("udp: prefetch rmem_alloc in udp_queue_rcv_skb()"), this allows saving a cache miss when the BH is bottle-neck for UDP over ipv6 packet processing, e.g. for small packets when a single RX NIC ingress queue is in use. Performances under flood when multiple NIC R