[RFC v3] app/dma-perf: introduce dma-perf application

[Jiang, Cheng1]

Sure, I'll take a look and fix them in the next version.

Thanks,
Cheng

> -----Original Message-----
> From: David Marchand <david.marchand at redhat.com>
> Sent: Friday, October 21, 2022 9:29 PM
> To: Jiang, Cheng1 <cheng1.jiang at intel.com>
> Cc: thomas at monjalon.net; Richardson, Bruce
> <bruce.richardson at intel.com>; mb at smartsharesystems.com;
> dev at dpdk.org; Hu, Jiayu <jiayu.hu at intel.com>; Ding, Xuan
> <xuan.ding at intel.com>; Ma, WenwuX <wenwux.ma at intel.com>; Wang,
> YuanX <yuanx.wang at intel.com>; Yang, YvonneX
> <yvonnex.yang at intel.com>; He, Xingguang <xingguang.he at intel.com>
> Subject: Re: [RFC v3] app/dma-perf: introduce dma-perf application
> 
> On Tue, Oct 18, 2022 at 9:22 AM Cheng Jiang <cheng1.jiang at intel.com>
> wrote:
> >
> > There are many high-performance DMA devices supported in DPDK now,
> and
> > these DMA devices can also be integrated into other modules of DPDK as
> > accelerators, such as Vhost. Before integrating DMA into applications,
> > developers need to know the performance of these DMA devices in
> > various scenarios and the performance of CPUs in the same scenario,
> > such as different buffer lengths. Only in this way can we know the
> > target performance of the application accelerated by using them. This
> > patch introduces a high-performance testing tool, which supports
> > comparing the performance of CPU and DMA in different scenarios
> > automatically with a pre-set config file. Memory Copy performance test are
> supported for now.
> >
> > Signed-off-by: Cheng Jiang <cheng1.jiang at intel.com>
> > Signed-off-by: Jiayu Hu <jiayu.hu at intel.com>
> > Signed-off-by: Yuan Wang <yuanx.wang at intel.com>
> > Acked-by: Morten Brørup <mb at smartsharesystems.com>
> > ---
> > v3: improved nr_buf calculation and added support for getting
> > subprocess exit status
> > v2: fixed some CI issues.
> 
> There is still at least one build issue.
> 
> 
> --
> David Marchand