Cannot obtain "dram_read_bytes" data from Jetson TX2 using nvprof

[13939941607]

1. "In CUDA GPUs - Compute Capability | NVIDIA Developer, I found that TX2 and Xavier belong to CC6.2 and CC7.2 devices, respectively (see Figure 1).
   
   
2. Referring to the explanations given in Profiler Users Guide, CC6.2 and CC7.2 should support the retrieval of ‘dram_read_bytes’ data (see Figures 2 and 3).
   
   
   
   
   
3. However, when using ‘nvprof --query-metrics’ command on TX2 and Xavier, I found that ‘dram_read_bytes’ data is not supported. Could you please advise me on how to obtain ‘dram_read_bytes’ data on these two types of devices?"

[TomNVIDIA]

I’m moving this topic to the Jetson TX2 category so the support team has visibility.

[AastaLLL]

Hi

Have you run the nvprof tool with root authority?
Thanks.

[13939941607]

Sorry for replying to you so late. I have used root privileges, but I cannot obtain data for this indicator.

[AastaLLL]

Hi,

Since Jetson is a shared memory system, not all the data are supported.
Please use the --metrics all configuration to get all the available metrics.

Thanks.