Apparatus for testing PCIe bus bandwidth and method thereof
A bandwidth and message data technology, applied in digital transmission systems, electrical components, transmission systems, etc., to solve problems such as limited CPU computing power, inability to measure the reliability and stability of PCIe interfaces, and data traffic that cannot reach the maximum bandwidth. , to achieve the effect of saving address calculation time, high accuracy and reducing use cost
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[0018] like figure 1 As shown, the device for testing PCIe bus bandwidth includes: a memory located in the host device; a message construction module, a DMA write engine module, a DMA read engine module, a message parsing module, and a bandwidth calculation module located in the PCIe device ;
[0019] The device for testing PCIe bus bandwidth constructs a message on the message construction module of the PCIe device, and then uploads the constructed message to the DMA of the host memory through the DMA writing engine module. Write address, the DMA read engine module reads data from the host memory address through the DMA read address of the host memory and transmits the read data to the message parsing module, the message parsing The module submits the length information of the message data to the bandwidth calculation module; finally, the bandwidth calculation module calculates the bandwidth of the message according to the length information of the obtained message data to c...
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