x...@openeuler.org
> Subject: Re: [PATCH] dma-mapping: benchmark: pretend DMA is transmitting
>
> On 2021-02-04 22:58, Barry Song wrote:
> > In a real dma mapping user case, after dma_map is done, data will be
> > transmit. Thus, in multi-threaded user scenario, IOMMU contention
>
On 2021-02-04 22:58, Barry Song wrote:
In a real dma mapping user case, after dma_map is done, data will be
transmit. Thus, in multi-threaded user scenario, IOMMU contention
should not be that severe. For example, if users enable multiple
threads to send network packets through 1G/10G/100Gbps NIC
In a real dma mapping user case, after dma_map is done, data will be
transmit. Thus, in multi-threaded user scenario, IOMMU contention
should not be that severe. For example, if users enable multiple
threads to send network packets through 1G/10G/100Gbps NIC, usually
the steps will be: map -> trans
