; sh...@kernel.org; Linuxarm
> ; linux-kselft...@vger.kernel.org
> Subject: RE: [PATCH 1/2] dma-mapping: add benchmark support for streaming
> DMA APIs
>
>
>
> > -Original Message-
> > From: Robin Murphy [mailto:robin.mur...@arm.com]
> > Sent: Saturday
; sh...@kernel.org; Linuxarm
> ; linux-kselft...@vger.kernel.org
> Subject: Re: [PATCH 1/2] dma-mapping: add benchmark support for streaming
> DMA APIs
>
> On 2020-10-29 21:39, Song Bao Hua (Barry Song) wrote:
> [...]
> >>> +struct map_benchmark {
> >>> + __u
On 2020-10-29 21:39, Song Bao Hua (Barry Song) wrote:
[...]
+struct map_benchmark {
+ __u64 map_nsec;
+ __u64 unmap_nsec;
+ __u32 threads; /* how many threads will do map/unmap in parallel */
+ __u32 seconds; /* how long the test will last */
+ int node; /* which num
rnel.org; Linuxarm
> ; linux-kselft...@vger.kernel.org
> Subject: Re: [PATCH 1/2] dma-mapping: add benchmark support for streaming
> DMA APIs
>
> On 2020-10-27 03:53, Barry Song wrote:
> > Nowadays, there are increasing requirements to benchmark the performance
> > o
On 2020-10-27 03:53, Barry Song wrote:
Nowadays, there are increasing requirements to benchmark the performance
of dma_map and dma_unmap particually while the device is attached to an
IOMMU.
This patch enables the support. Users can run specified number of threads
to do dma_map_page and dma_unma
Nowadays, there are increasing requirements to benchmark the performance
of dma_map and dma_unmap particually while the device is attached to an
IOMMU.
This patch enables the support. Users can run specified number of threads
to do dma_map_page and dma_unmap_page on a specific NUMA node with the
s
