Re: [PATCH net-next] virtio_net: enable napi_tx by default

2019-06-14 Thread David Miller
From: Willem de Bruijn Date: Thu, 13 Jun 2019 12:24:57 -0400 > From: Willem de Bruijn > > NAPI tx mode improves TCP behavior by enabling TCP small queues (TSQ). > TSQ reduces queuing ("bufferbloat") and burstiness. > > Previous measurements have shown significant improvement for > TCP_STREAM s

Re: [PATCH net-next] virtio_net: enable napi_tx by default

2019-06-14 Thread Jason Wang
On 2019/6/14 下午2:00, Michael S. Tsirkin wrote: On Fri, Jun 14, 2019 at 11:28:59AM +0800, Jason Wang wrote: On 2019/6/14 上午12:24, Willem de Bruijn wrote: From: Willem de Bruijn NAPI tx mode improves TCP behavior by enabling TCP small queues (TSQ). TSQ reduces queuing ("bufferbloat") and burs

Re: [PATCH net-next] virtio_net: enable napi_tx by default

2019-06-13 Thread Michael S. Tsirkin
On Fri, Jun 14, 2019 at 11:28:59AM +0800, Jason Wang wrote: > > On 2019/6/14 上午12:24, Willem de Bruijn wrote: > > From: Willem de Bruijn > > > > NAPI tx mode improves TCP behavior by enabling TCP small queues (TSQ). > > TSQ reduces queuing ("bufferbloat") and burstiness. > > > > Previous measur

Re: [PATCH net-next] virtio_net: enable napi_tx by default

2019-06-13 Thread Michael S. Tsirkin
On Thu, Jun 13, 2019 at 12:24:57PM -0400, Willem de Bruijn wrote: > From: Willem de Bruijn > > NAPI tx mode improves TCP behavior by enabling TCP small queues (TSQ). > TSQ reduces queuing ("bufferbloat") and burstiness. > > Previous measurements have shown significant improvement for > TCP_STREA

Re: [PATCH net-next] virtio_net: enable napi_tx by default

2019-06-13 Thread Jason Wang
On 2019/6/14 上午12:24, Willem de Bruijn wrote: From: Willem de Bruijn NAPI tx mode improves TCP behavior by enabling TCP small queues (TSQ). TSQ reduces queuing ("bufferbloat") and burstiness. Previous measurements have shown significant improvement for TCP_STREAM style workloads. Such as tho