# Drastic Drop in the Frame Rate on the Jetson Nano

**URL:** <https://forums.developer.nvidia.com/t/drastic-drop-in-the-frame-rate-on-the-jetson-nano/278295>\
**Category:** Jetson Nano\
**Tags:** jetson-inference\
**Created:** [January 9, 2024, 6:03am UTC](https://forums.developer.nvidia.com/t/drastic-drop-in-the-frame-rate-on-the-jetson-nano/278295 "2024-01-09T06:03:27Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![contactnikhilrb](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@contactnikhilrb](https://forums.developer.nvidia.com/u/contactnikhilrb)\
**Post date:** [January 9, 2024, 6:03am UTC](https://forums.developer.nvidia.com/t/drastic-drop-in-the-frame-rate-on-the-jetson-nano/278295/1 "2024-01-09T06:03:27Z")

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I’ve implemented a facial detection + recognition code on the Jetson Nano, the facial detection part is implemented using MediaPipe 0.8.5 (BlazeFace model) and runs on the GPU of the Jetson nano, while the recognition is implemented using DLib’s face\_recognition library and runs on the CPU of the Jetson Nano.

Commenting out the facial recognition part of the code, the facial detection part of the code runs at about 30 fps. But, when I try running both the detection+recognition the overall frame rate drops to about 5 fps.  
Need help with how I can avoid this drastic drop in the overall frame rate on the Jetson Nano.

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**Author:** ![AastaLLL](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/aastalll/32/14043_2.png) [@AastaLLL](https://forums.developer.nvidia.com/u/AastaLLL)\
**Post date:** [January 9, 2024, 7:25am UTC](https://forums.developer.nvidia.com/t/drastic-drop-in-the-frame-rate-on-the-jetson-nano/278295/3 "2024-01-09T07:25:26Z")

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Hi,

Did you use VGG for recognition?  
Usually, recognition requires much more computational resources to complete.

Please check with tegrastats if the GPU is fully utilized.  
If yes, the fps might be limited due to the Nano GPU resources.

```auto
$ sudo tegrastats 

```

Thanks.

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<div class="post-metadata">

**Author:** ![contactnikhilrb](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@contactnikhilrb](https://forums.developer.nvidia.com/u/contactnikhilrb)\
**Post date:** [January 9, 2024, 3:24pm UTC](https://forums.developer.nvidia.com/t/drastic-drop-in-the-frame-rate-on-the-jetson-nano/278295/4 "2024-01-09T15:24:42Z")

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> [@AastaLLL](#):
>
> Did you use VGG for recognition?

No.  
Can you please share alternative to DLib’s face\_recognition library that can be used on the Jetson nano.

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<div class="post-metadata">

**Author:** ![AastaLLL](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/aastalll/32/14043_2.png) [@AastaLLL](https://forums.developer.nvidia.com/u/AastaLLL)\
**Post date:** [January 10, 2024, 6:56am UTC](https://forums.developer.nvidia.com/t/drastic-drop-in-the-frame-rate-on-the-jetson-nano/278295/5 "2024-01-10T06:56:33Z")

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Hi,

Due to data privacy issues, we don’t have a face recognition sample.  
But you should be able to find some by googling.

Thanks.

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<div class="post-metadata">

**Author:** ![contactnikhilrb](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@contactnikhilrb](https://forums.developer.nvidia.com/u/contactnikhilrb)\
**Post date:** [January 10, 2024, 6:59am UTC](https://forums.developer.nvidia.com/t/drastic-drop-in-the-frame-rate-on-the-jetson-nano/278295/6 "2024-01-10T06:59:33Z")

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Alright, thanks

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**Author:** ![system](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/system/32/68080_2.png) [@system](https://forums.developer.nvidia.com/u/system)\
**Post date:** [January 31, 2024, 7:24am UTC](https://forums.developer.nvidia.com/t/drastic-drop-in-the-frame-rate-on-the-jetson-nano/278295/8 "2024-01-31T07:24:35Z")

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Closed on January 31, 2024, 7:24am UTC

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