use too much CPU resource

Hi, gpustat -i uses about 80% CPU on my machine, is it expected or a bug? In contrast, nvidia-smi -l 1 uses less than 10%.

OS: Ubuntu 18.04 Nv Driver: 410.48 CUDA: 10.0.130 CPU: AMD Threadripper 1900x GPU: 2080Ti + 1080

[matthew-z]

Hi, I just found that the CPU time problem of gpustat -i can be solved by running nvidia-smi daemon first.

[wookayin]

Top four most expensive operations:

 36.50%  36.50%    4.59s     4.59s   nvmlDeviceGetHandleByIndex (pynvml.py:945)
 16.50%  16.50%    1.85s     1.85s   nvmlDeviceGetPowerUsage (pynvml.py:1289)
  9.50%   9.50%    1.18s     1.18s   nvmlDeviceGetUtilizationRates (pynvml.py:1379)
  7.50%   7.50%   0.805s    0.805s   nvmlDeviceGetComputeRunningProcesses (pynvml.py:1435)