I have not. Unfortunately I own no gigabit hardware to test this on. The MIPS CPU runs at 300MHz on my unit.
On Fri, 2017-09-15 at 17:34 -0700, Eric Dumazet wrote: > On Fri, 2017-09-15 at 17:23 -0700, Rosen Penev wrote: > > On a linksys E1200v1 (actually a crossflashed E1000v2), the > > offloading features give no measurable benefit to speed or latency. > > Furthermore, disabling GRO actually improves iperf performance by a > > whoppimg 3mbps. Results: > > > > Currently: > > > > v2: Changed napi_gro_receive to netif_receive_skb. Seems to have an > > identical result. > > > > Signed-off-by: Rosen Penev <ros...@gmail.com> > > --- > > drivers/net/ethernet/broadcom/bgmac.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/net/ethernet/broadcom/bgmac.c > > b/drivers/net/ethernet/broadcom/bgmac.c > > index 48d672b204a4..1fb0053aeee7 100644 > > --- a/drivers/net/ethernet/broadcom/bgmac.c > > +++ b/drivers/net/ethernet/broadcom/bgmac.c > > @@ -483,7 +483,7 @@ static int bgmac_dma_rx_read(struct bgmac > > *bgmac, struct bgmac_dma_ring *ring, > > skb->protocol = eth_type_trans(skb, bgmac- > > >net_dev); > > bgmac->net_dev->stats.rx_bytes += len; > > bgmac->net_dev->stats.rx_packets++; > > - napi_gro_receive(&bgmac->napi, skb); > > + netif_receive_skb(skb); > > handled++; > > } while (0); > > > > And have you tested 1Gbit link speed ? > ( Or 2.5 Gbit link speed ) > > If you want to disable GRO on your host, fine : you can use ethtool > -K > > >
