[dpdk-dev] [ [PATCH v2] 01/13] virtio: Introduce config RTE_VIRTIO_INC_VECTOR

Thomas Monjalon thomas.monjalon at 6wind.com
Fri Dec 18 19:11:21 CET 2015


2015-12-18 09:33, Stephen Hemminger:
> On Fri, 18 Dec 2015 09:52:29 +0000
> "Xie, Huawei" <huawei.xie at intel.com> wrote:
> > > low level SSE bit twiddling.  
> > Hi Stephen:
> > We only did SSE twiddling to RX, which almost doubles the performance
> > comparing to normal path in virtio/vhost performance test case. Indirect
> > and any layout feature enabling are mostly for TX. We also did some
> > optimization for single segment and non-offload case in TX, without
> > using SSE, which also gives ~60% performance improvement, in Qian's
> > result. My optimization is mostly for single segment and non-offload
> > case, which i calls simple rx/tx.
> > I plan to add virtio/vhost performance benchmark so that we could easily
> > measure the performance difference for each patch.
> > 
> > Indirect and any layout features are useful for multiple segment
> > transmitted packet mbufs. I had acked your patch at the first time, and
> > thought it is applied. I don't understand why you say it is ignored by
> > Intel.
> 
> Sorry, did not mean to blame Intel, ... more that why didn't it get in 2.2?

I've already answered to this question:
http://dpdk.org/ml/archives/dev/2015-December/030540.html
There was a compilation error and you have not followed up.


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