From mboxrd@z Thu Jan  1 00:00:00 1970
From: Simon Guo <wei.guo.simon@gmail.com>
Subject: Re: [PATCH v4] app/testpmd: add option ring-bind-lcpu to
 bind Q with CPU
Date: Tue, 16 Jan 2018 10:13:36 +0800
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Hi Wenzuo,
On Mon, Jan 15, 2018 at 08:31:52AM +0000, Lu, Wenzhuo wrote:
> Hi Simon,
> 
> 
> > -----Original Message-----
> > From: wei.guo.simon@gmail.com [mailto:wei.guo.simon@gmail.com]
> > Sent: Wednesday, January 10, 2018 4:00 PM
> > To: Lu, Wenzhuo <wenzhuo.lu@intel.com>
> > Cc: dev@dpdk.org; Simon Guo <wei.guo.simon@gmail.com>
> > Subject: [PATCH v4] app/testpmd: add option ring-bind-lcpu to bind Q with
> > CPU
> > 
> > From: Simon Guo <wei.guo.simon@gmail.com>
> > 
> > Currently the rx/tx queue is allocated from the buffer pool on socket of:
> > - port's socket if --port-numa-config specified
> > - or ring-numa-config setting per port
> > 
> > All the above will "bind" queue to single socket per port configuration.
> > But it can actually archieve better performance if one port's queue can be
> > spread across multiple NUMA nodes, and the rx/tx queue is allocated per
> > lcpu socket.
> > 
> > This patch adds a new option "--ring-bind-lcpu"(no parameter).  With this,
> > testpmd can utilize the PCI-e bus bandwidth on another NUMA nodes.
> > 
> > When --port-numa-config or --ring-numa-config option is specified, this --
> > ring-bind-lcpu option will be suppressed.
> > 
> > Test result:
> > 64bytes package, running in PowerPC with Mellanox
> > CX-4 card, single port(100G), with 8 cores, fw mode:
> > - Without this patch:  52.5Mpps throughput
> > - With this patch: 66Mpps throughput
> >       ~25% improvement
> > 
> > Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
> This patch is fine. But for the new parameter, please update this doc, run_app.rst. Thanks.
ah...yes. I will rework on v5.

Thanks,
- Simon