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authorPaolo Abeni <pabeni@redhat.com>2017-06-21 10:24:40 +0200
committerDavid S. Miller <davem@davemloft.net>2017-06-21 11:38:11 -0400
commitdd99e425be23294a9a91b365bd04f9b255fb72e8 (patch)
tree0bd383473708ab4a183c3a138b6cee363ae4d569 /include/uapi/asm-generic
parentda2e9cf03b8fccbb69dd1e215bb1e554ce8e8cbe (diff)
udp: prefetch rmem_alloc in udp_queue_rcv_skb()
On UDP packets processing, if the BH is the bottle-neck, it always sees a cache miss while updating rmem_alloc; try to avoid it prefetching the value as soon as we have the socket available. Performances under flood with multiple NIC rx queues used are unaffected, but when a single NIC rx queue is in use, this gives ~10% performance improvement. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi/asm-generic')
0 files changed, 0 insertions, 0 deletions

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