tegrastatus 'GR3D_PCI' is always '% 0%'

Hi,

‘GR3D_PCI’ is always ‘% 0%’ no matter which sample I run when I use tegrastatus command to monitor dGPU usage even I use ‘export CUDA_VISIBLE_DEVICES=0’. Is something wrong?

Information when I run sample_drivenet_multigpu is as follows.

nvidia@nvidia:/usr/local/driveworks/bin$ ./sample_drivenet_multigpu
nvrm_gpu: Bug 200215060 workaround enabled.
Initialize DriveWorks SDK v0.6.54
Release build with GNU 4.9.2 from v0.6.0-rc5-0-g3f25786 against Vibrante PDK v5.0.5.0
TimeSource: monotonic epoch time offset is 1527483580840458
TimeSource: PTP ioctl returned error. Synchronized time will not be available.
TimeSource: Could not detect valid PTP time source at 'eth0'. Fallback to CLOCK_MONOTONIC.
SDK: Resources mounted from .././data/resources
SDK: Create NvMediaDevice
SDK: use EGL display as provided
SDK: Default GPU Device set to device number 0. Total number of devices detected: 2
SAL: identified board as DrivePX2-TegraB
GPUs don t have peer access, going through host
SensorFactory::createSensor() -> camera.virtual, camera-index=0,camera-type=ar0231-rccb-ssc,csi-port=ab,input-type=video,slave=0,stopFrame=0,video=.././data/samples/raw/rccb.raw
CameraVirtual: The recorded RAW video appears to be a version 2, which is going to deprecate in the next version
CameraRAW: no seek table found at .././data/samples/raw/rccb.raw.seek, seeking is not available.
Camera image: 1920x1208
Camera image with 1920x1208 at 30 FPS
DriveNet: Running in FP32 mode with batch size = 2.
FileHeader: file header created with development build (patch = -1), assumingcompatibility
Added linear block of size 44236800
Added linear block of size 14745600
Added linear block of size 6451200
DataConditioner: Scale transformation has been configured with 0.0039.
DataConditioner: Split transformation has been enabled.
DataConditioner: Value subtract transformation has been configured with {0.00000, 0.00000, 0.00000}.
Tracker: lifespan of object with objectId 3 and classId 0 is reached after 9 frames tracking.
Camera reached end of stream.
Tracker: lifespan of object with objectId 3 and classId 0 is reached after 9 frames tracking.
Camera reached end of stream.
Tracker: lifespan of object with objectId 3 and classId 0 is reached after 9 frames tracking.
Camera reached end of stream.
Tracker: lifespan of object with objectId 3 and classId 0 is reached after 9 frames tracking.
Camera reached end of stream.
Tracker: lifespan of object with objectId 3 and classId 0 is reached after 9 frames tracking.
Camera reached end of stream.
Tracker: lifespan of object with objectId 3 and classId 0 is reached after 9 frames tracking.
Camera reached end of stream.
Tracker: lifespan of object with objectId 3 and classId 0 is reached after 9 frames tracking.
Camera reached end of stream.

Tegrastatus information when I run sample_drivenet_multigpu is as follows.

RAM 2359/6668MB (lfb 763x4MB) CPU [0%@1996,0%@2035,0%@2035,0%@1996,0%@1996,0%@1996] GR3D_FREQ 5%@1275 GR3D_PCI % 0% PLL@46C MCPU@46C Tegra@0C Tdiode@50.25C AO@44.5C GPU@52C BCPU@46C thermal@50.25C Tegra@50.25C Tj@50.25C
RAM 2359/6668MB (lfb 763x4MB) CPU [5%@1996,59%@2035,61%@2035,0%@1996,1%@1996,4%@1996] GR3D_FREQ 10%@1275 GR3D_PCI % 0% PLL@46.5C MCPU@46.5C Tegra@0C Tdiode@50.25C AO@44.5C GPU@52.5C BCPU@46.5C thermal@50.25C Tegra@50.25C Tj@50.25C
RAM 2359/6668MB (lfb 763x4MB) CPU [7%@1996,52%@2035,69%@2035,3%@1996,0%@1996,4%@1996] GR3D_FREQ 10%@1275 GR3D_PCI % 0% PLL@46.5C MCPU@46.5C Tegra@0C Tdiode@50.25C AO@44.5C GPU@52.5C BCPU@46.5C thermal@50.25C Tegra@50.25C Tj@50.25C
RAM 2359/6668MB (lfb 763x4MB) CPU [6%@1996,68%@2035,57%@2035,2%@1996,1%@1996,5%@1996] GR3D_FREQ 4%@1275 GR3D_PCI % 0% PLL@46.5C MCPU@46.5C Tegra@0C Tdiode@50.5C AO@45C GPU@52.5C BCPU@46.5C thermal@50.25C Tegra@50.5C Tj@50.5C
RAM 2359/6668MB (lfb 763x4MB) CPU [2%@1996,56%@2035,66%@2035,4%@1996,1%@1996,5%@1996] GR3D_FREQ 14%@1275 GR3D_PCI % 0% PLL@46.5C MCPU@46.5C Tegra@0C Tdiode@50.5C AO@45C GPU@52.5C BCPU@46.5C thermal@50.25C Tegra@50.5C Tj@50.5C
RAM 2359/6668MB (lfb 763x4MB) CPU [4%@1996,41%@2035,80%@2035,0%@1996,4%@1996,4%@1996] GR3D_FREQ 10%@1275 GR3D_PCI % 0% PLL@46.5C MCPU@46.5C Tegra@0C Tdiode@50.5C AO@45C GPU@52.5C BCPU@46.5C thermal@50.5C Tegra@50.5C Tj@50.5C
RAM 2359/6668MB (lfb 763x4MB) CPU [6%@1996,51%@2035,69%@2035,2%@1996,1%@1996,2%@1996] GR3D_FREQ 18%@1275 GR3D_PCI % 0% PLL@46.5C MCPU@46.5C Tegra@0C Tdiode@50.5C AO@45C GPU@52.5C BCPU@46.5C thermal@50.5C Tegra@50.5C Tj@50.5C
RAM 2359/6668MB (lfb 763x4MB) CPU [5%@1996,64%@2035,59%@2035,1%@1996,1%@1996,2%@1996] GR3D_FREQ 0%@1275 GR3D_PCI % 0% PLL@46.5C MCPU@46.5C Tegra@0C Tdiode@50.75C AO@45C GPU@52.5C BCPU@46.5C thermal@50.5C Tegra@50.75C Tj@50.75C
RAM 2358/6668MB (lfb 763x4MB) CPU [6%@1996,46%@2035,82%@2035,3%@1996,4%@1996,8%@1996] GR3D_FREQ 12%@1275 GR3D_PCI % 0% PLL@46.5C MCPU@46.5C Tegra@0C Tdiode@50.75C AO@45C GPU@52.5C BCPU@46.5C thermal@50.5C Tegra@50.75C Tj@50.75C
RAM 2359/6668MB (lfb 763x4MB) CPU [7%@1996,68%@2035,58%@2035,4%@1996,2%@1996,5%@1996] GR3D_FREQ 20%@1275 GR3D_PCI % 0% PLL@46.5C MCPU@46.5C Tegra@0C Tdiode@50.75C AO@45C GPU@52.5C BCPU@46.5C thermal@50.5C Tegra@50.75C Tj@50.75C
RAM 2359/6668MB (lfb 763x4MB) CPU [6%@1996,52%@2035,72%@2035,3%@1996,2%@1996,5%@1996] GR3D_FREQ 8%@1275 GR3D_PCI % 0% PLL@47C MCPU@47C Tegra@0C Tdiode@50.75C AO@45C GPU@53C BCPU@47C thermal@50.75C Tegra@50.75C Tj@50.75C
RAM 2359/6668MB (lfb 763x4MB) CPU [2%@1996,55%@2035,62%@2035,1%@1996,9%@1996,8%@1996] GR3D_FREQ 2%@1275 GR3D_PCI % 0% PLL@47C MCPU@47C Tegra@0C Tdiode@50.75C AO@45C GPU@53C BCPU@47C thermal@50.75C Tegra@50.75C Tj@50.75C
RAM 2359/6668MB (lfb 763x4MB) CPU [1%@1996,45%@2035,74%@2035,1%@1996,6%@1996,4%@1996] GR3D_FREQ 12%@1275 GR3D_PCI % 0% PLL@46.5C MCPU@46.5C Tegra@0C Tdiode@50.75C AO@45C GPU@52.5C BCPU@46.5C thermal@50.75C Tegra@50.75C Tj@50.75C
RAM 2359/6668MB (lfb 763x4MB) CPU [4%@1996,66%@2035,56%@2035,0%@1996,3%@1996,2%@1996] GR3D_FREQ 13%@1275 GR3D_PCI % 0% PLL@46.5C MCPU@46.5C Tegra@0C Tdiode@50.75C AO@45.5C GPU@52.5C BCPU@46.5C thermal@50.75C Tegra@50.75C Tj@50.75C
RAM 2359/6668MB (lfb 763x4MB) CPU [5%@1996,57%@2035,62%@2035,2%@1996,4%@1996,3%@1996] GR3D_FREQ 14%@1275 GR3D_PCI % 0% PLL@47C MCPU@47C Tegra@0C Tdiode@51C AO@45.5C GPU@53C BCPU@47C thermal@50.75C Tegra@51C Tj@51C
RAM 2359/6668MB (lfb 763x4MB) CPU [8%@1996,37%@2035,82%@2035,1%@1996,0%@1996,3%@1996] GR3D_FREQ 12%@1275 GR3D_PCI % 0% PLL@47C MCPU@47C Tegra@0C Tdiode@51C AO@45.5C GPU@53C BCPU@47C thermal@51C Tegra@51C Tj@51C
RAM 2359/6668MB (lfb 763x4MB) CPU [7%@1996,45%@2035,75%@2035,1%@1996,3%@1996,2%@1996] GR3D_FREQ 14%@1275 GR3D_PCI % 0% PLL@47C MCPU@47C Tegra@0C Tdiode@51C AO@45.5C GPU@53C BCPU@47C thermal@51C Tegra@51C Tj@51C
RAM 2359/6668MB (lfb 763x4MB) CPU [6%@1996,57%@2035,56%@2035,2%@1996,2%@1996,7%@1996] GR3D_FREQ 14%@1275 GR3D_PCI % 0% PLL@47C MCPU@47C Tegra@0C Tdiode@51.25C AO@45.5C GPU@53C BCPU@47C thermal@51C Tegra@51.25C Tj@51.25C
RAM 2359/6668MB (lfb 763x4MB) CPU [5%@1996,51%@2035,68%@2035,3%@1996,3%@1996,10%@1996] GR3D_FREQ 7%@1275 GR3D_PCI % 0% PLL@47C MCPU@47C Tegra@0C Tdiode@51C AO@45.5C GPU@53C BCPU@47C thermal@51C Tegra@51C Tj@51C
RAM 2359/6668MB (lfb 763x4MB) CPU [0%@1996,29%@2035,88%@2035,7%@1996,3%@1996,5%@1996] GR3D_FREQ 16%@1275 GR3D_PCI % 0% PLL@47C MCPU@47C Tegra@0C Tdiode@51.25C AO@45.5C GPU@53C BCPU@47C thermal@51C Tegra@51.25C Tj@51.25C
RAM 2359/6668MB (lfb 763x4MB) CPU [2%@1996,52%@2035,77%@2035,10%@1996,5%@1996,7%@1996] GR3D_FREQ 16%@1275 GR3D_PCI % 0% PLL@47.5C MCPU@47.5C Tegra@0C Tdiode@51.5C AO@45.5C GPU@53.5C BCPU@47.5C thermal@51.25C Tegra@51.5C Tj@51.5C
RAM 2359/6668MB (lfb 763x4MB) CPU [2%@1996,53%@2035,68%@2035,4%@1996,1%@1996,3%@1996] GR3D_FREQ 10%@1275 GR3D_PCI % 0% PLL@47C MCPU@47C Tegra@0C Tdiode@51.25C AO@45.5C GPU@53C BCPU@47C thermal@51.25C Tegra@51.25C Tj@51.25C
RAM 2359/6668MB (lfb 763x4MB) CPU [2%@1996,55%@2035,59%@2035,8%@1996,3%@1996,5%@1996] GR3D_FREQ 14%@1275 GR3D_PCI % 0% PLL@47.5C MCPU@47.5C Tegra@0C Tdiode@51.5C AO@46C GPU@53.5C BCPU@47.5C thermal@51.25C Tegra@51.5C Tj@51.5C
RAM 2359/6668MB (lfb 763x4MB) CPU [3%@1996,41%@2035,77%@2035,6%@1996,2%@1996,0%@1996] GR3D_FREQ 10%@1275 GR3D_PCI % 0% PLL@47.5C MCPU@47.5C Tegra@0C Tdiode@51.25C AO@45.5C GPU@53.5C BCPU@47.5C thermal@51.25C Tegra@51.25C Tj@51.25C
RAM 2359/6668MB (lfb 763x4MB) CPU [1%@1996,52%@2035,70%@2035,5%@1996,0%@1996,2%@1996] GR3D_FREQ 0%@1275 GR3D_PCI % 0% PLL@47.5C MCPU@47.5C Tegra@0C Tdiode@51.25C AO@46C GPU@53.5C BCPU@47.5C thermal@51.25C Tegra@51.25C Tj@51.25C
RAM 2359/6668MB (lfb 763x4MB) CPU [3%@1996,62%@2035,56%@2035,7%@1996,1%@1996,1%@1996] GR3D_FREQ 2%@1275 GR3D_PCI % 0% PLL@47.5C MCPU@47.5C Tegra@0C Tdiode@51.5C AO@46C GPU@53.5C BCPU@47.5C thermal@51.25C Tegra@51.5C Tj@51.5C
RAM 2359/6668MB (lfb 763x4MB) CPU [4%@1996,63%@2035,62%@2035,10%@1996,6%@1996,10%@1996] GR3D_FREQ 0%@1275 GR3D_PCI % 0% PLL@47.5C MCPU@47.5C Tegra@0C Tdiode@51.5C AO@45.5C GPU@53.5C BCPU@47.5C thermal@51.25C Tegra@51.5C Tj@51.5C
RAM 2374/6668MB (lfb 759x4MB) CPU [7%@1996,47%@2035,80%@2035,3%@1996,4%@1996,7%@1996] GR3D_FREQ 13%@1275 GR3D_PCI % 0% PLL@47.5C MCPU@47.5C Tegra@0C Tdiode@51.75C AO@45.5C GPU@53.5C BCPU@47.5C thermal@51.25C Tegra@51.75C Tj@51.75C
RAM 2374/6668MB (lfb 759x4MB) CPU [7%@1996,32%@2035,87%@2035,0%@1996,3%@1996,1%@1996] GR3D_FREQ 16%@1275 GR3D_PCI % 0% PLL@47.5C MCPU@47.5C Tegra@0C Tdiode@51.5C AO@46C GPU@53.5C BCPU@47.5C thermal@51.25C Tegra@51.5C Tj@51.5C
RAM 2374/6668MB (lfb 759x4MB) CPU [5%@1996,35%@2035,81%@2035,7%@1996,7%@1996,10%@1996] GR3D_FREQ 9%@1275 GR3D_PCI % 0% PLL@47.5C MCPU@47.5C Tegra@0C Tdiode@51.5C AO@46C GPU@53.5C BCPU@47.5C thermal@51.25C Tegra@51.5C Tj@51.5C

Dear shichong.wang,

Please refer to “GR3D_FREQ xx%@1275” not GR3D_PCI for dGPU usage. Thanks.

Thanks for your reply.
But I’m kind of confused. I refered to the following issue.
https://devtalk.nvidia.com/default/topic/1022290/general/how-to-monitor-discrete-gpu-workload-usage-on-px2-/

Is there any differece between the issue above and mine?
In addition, could you please tell me what’s the meaning of ‘GR3D_PCI’?
Thanks very much.

This issue will be fixed in next release.

Get the new version tegrastats from below link for this issue.

https://devtalk.nvidia.com/default/topic/1036238/general/can-t-detect-the-dgpu-utilization-through-tegrastat/post/5269344/#5269344