Re: [PATCH net-next 3/4] veth: refine napi usage

2021-04-09 Thread Toke Høiland-Jørgensen
Paolo Abeni writes: > hello, > > On Fri, 2021-04-09 at 16:57 +0200, Toke Høiland-Jørgensen wrote: >> Paolo Abeni writes: >> >> > After the previous patch, when enabling GRO, locally generated >> > TCP traffic experiences some measurable overhead, as it traverses >> > the GRO engine without any

Re: [PATCH net-next 3/4] veth: refine napi usage

2021-04-09 Thread Paolo Abeni
hello, On Fri, 2021-04-09 at 16:57 +0200, Toke Høiland-Jørgensen wrote: > Paolo Abeni writes: > > > After the previous patch, when enabling GRO, locally generated > > TCP traffic experiences some measurable overhead, as it traverses > > the GRO engine without any chance of aggregation. > > > >

Re: [PATCH net-next 3/4] veth: refine napi usage

2021-04-09 Thread Toke Høiland-Jørgensen
Paolo Abeni writes: > After the previous patch, when enabling GRO, locally generated > TCP traffic experiences some measurable overhead, as it traverses > the GRO engine without any chance of aggregation. > > This change refine the NAPI receive path admission test, to avoid > unnecessary GRO over

[PATCH net-next 3/4] veth: refine napi usage

2021-04-09 Thread Paolo Abeni
After the previous patch, when enabling GRO, locally generated TCP traffic experiences some measurable overhead, as it traverses the GRO engine without any chance of aggregation. This change refine the NAPI receive path admission test, to avoid unnecessary GRO overhead in most scenarios, when GRO