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Subject: RE: [RFC] app/dma-perf: introduce dma-perf application
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Date: Fri, 16 Sep 2022 09:36:21 +0200
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Thread-Topic: [RFC] app/dma-perf: introduce dma-perf application
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References: <20220915154758.688-1-cheng1.jiang@intel.com>
From: =?iso-8859-1?Q?Morten_Br=F8rup?= <mb@smartsharesystems.com>
To: "Cheng Jiang" <cheng1.jiang@intel.com>, <thomas@monjalon.net>,
 <bruce.richardson@intel.com>
Cc: <dev@dpdk.org>, <jiayu.hu@intel.com>, <xuan.ding@intel.com>,
 <wenwux.ma@intel.com>, <yuanx.wang@intel.com>, <yvonnex.yang@intel.com>,
 <xingguang.he@intel.com>
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> From: Cheng Jiang [mailto:cheng1.jiang@intel.com]
> Sent: Thursday, 15 September 2022 17.48
>=20
> 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.
>=20
> Signed-off-by: Cheng Jiang <cheng1.jiang@intel.com>
> Signed-off-by: Jiayu Hu <jiayu.hu@intel.com>
> Signed-off-by: Yuan Wang <yuanx.wang@intel.com>
> ---
>  app/meson.build               |   1 +
>  app/test-dma-perf/benchmark.c | 537 =
++++++++++++++++++++++++++++++++++
>  app/test-dma-perf/benchmark.h |  12 +
>  app/test-dma-perf/config.ini  |  61 ++++
>  app/test-dma-perf/main.c      | 399 +++++++++++++++++++++++++
>  app/test-dma-perf/main.h      |  55 ++++
>  app/test-dma-perf/meson.build |  16 +
>  7 files changed, 1081 insertions(+)
>  create mode 100644 app/test-dma-perf/benchmark.c
>  create mode 100644 app/test-dma-perf/benchmark.h
>  create mode 100644 app/test-dma-perf/config.ini
>  create mode 100644 app/test-dma-perf/main.c
>  create mode 100644 app/test-dma-perf/main.h
>  create mode 100644 app/test-dma-perf/meson.build
>=20

Excellent, thank you!

Is there any reason for making this a separate application, instead of =
part of the /app/test/ application?

NB: Someone could have asked the same question about test-compress-dev =
and similar applications... ;-)

Acked-by: Morten Br=F8rup <mb@smartsharesystems.com>