Hi all: This series introduces the support for rx busy polling support. This was useful for reduing the latency for a kvm guest. Patch 1-2 introduces helpers which is used for rx busy polling. Patch 3 implement the main function.
Test was done between a kvm guest and an external host. Two hosts were connected through 40gb mlx4 cards. With both busy_poll and busy_read are set to 50 in guest, 1 byte netperf tcp_rr shows 116% improvement: transaction rate was increased from 9151.94 to 19787.37. Changes from V1: - split the patch info smaller ones - add more details about test setup/configuration Please review. Jason Wang (3): virtio-net: introduce helpers to enable and disable all NAPIs virtio-net: introduce virtnet_receive() virtio-net: rx busy polling support drivers/net/virtio_net.c | 234 ++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 221 insertions(+), 13 deletions(-) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
