From: Eric Dumazet <eric.dumazet@xxxxxxxxx> Date: Fri, 31 Jul 2015 18:25:17 +0200 > From: Eric Dumazet <edumazet@xxxxxxxxxx> > > Straightforward patch to add GRO processing to virtio_net. > > napi_complete_done() usage allows more aggressive aggregation, > opted-in by setting /sys/class/net/xxx/gro_flush_timeout > > Tested: > > Setting /sys/class/net/xxx/gro_flush_timeout to 1000 nsec, > Rick Jones reported following results. > > One VM of each on a pair of OpenStack compute nodes with E5-2650Lv3 CPUs > and Intel 82599ES-based NICs. So, two "before" and two "after" VMs. > The OpenStack compute nodes were running OpenStack Kilo, with VxLAN > encapsulation being used through OVS so no GRO coming-up the host > stack. The compute nodes themselves were running a 3.14-based kernel. > > Single-stream netperf, CPU utilizations and thus service demands are > based on intra-guest reported CPU. ... > Signed-off-by: Eric Dumazet <edumazet@xxxxxxxxxx> > Tested-by: Rick Jones <rick.jones2@xxxxxx> Applied. _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
