# NVIDIA Quadro P5000 encoding in linux working on GPU but also using CPU
**URL:** https://community.wowza.com/t/nvidia-quadro-p5000-encoding-in-linux-working-on-gpu-but-also-using-cpu/53585
**Category:** Wowza Streaming Engine
**Tags:** transcoder
**Created:** [June 27, 2019, 9:35am UTC](https://community.wowza.com/t/nvidia-quadro-p5000-encoding-in-linux-working-on-gpu-but-also-using-cpu/53585 "2019-06-27T09:35:21Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@Aleksandar\_Stojcevsk](https://community.wowza.com/u/Aleksandar_Stojcevsk)
#### Post date: [June 27, 2019, 9:35am UTC](https://community.wowza.com/t/nvidia-quadro-p5000-encoding-in-linux-working-on-gpu-but-also-using-cpu/53585/1 "2019-06-27T09:35:21Z")
Hi,
I have NVIDIA Quadro K5000 running on Ubuntu Server 18.04.
Transcoder is configured to encode 3 bitrates 1080p, 720p and 320p using “NVENC”.
With “nvidia-smi” command i can see Wowza running process on GPU, so the GPU is transcoding but also the CPU is increase up (around 90% with 8 incoming streams).
When i change the transcoder to use “Default” encoding instead “NVENC”, “nvidia-smi” command showing GPU does not use the any Wowza process, so transcoding using just CPU (95% with 2 incoming streams).
Any solutions?
---
### Author:  [@Karel\_Boek](https://community.wowza.com/u/Karel_Boek)
#### Post date: [June 27, 2019, 12:32pm UTC](https://community.wowza.com/t/nvidia-quadro-p5000-encoding-in-linux-working-on-gpu-but-also-using-cpu/53585/2 "2019-06-27T12:32:19Z")
Dependent on your CPU, it may be that it simply is running at max capacity even with all the right settings. You can compare your configuration against [https://www.wowza.com/docs/wowza-transcoder-performance-benchmark](https://www.wowza.com/docs/wowza-transcoder-performance-benchmark).
There are 3 places where you can decide to use CPU or GPU:
- Decoding (in the template XML under Root/Decode/Video/Implementation)
- Each encoding profile (Root/Encodes/Encode/Video/Implementation)
- Scaling (Root/Scale/Implementation)
Also, make sure the K5000 supports the codec that you want to de-/encode (see [https://developer.nvidia.com/video-encode-decode-gpu-support-matrix](https://developer.nvidia.com/video-encode-decode-gpu-support-matrix))
---
### Author:  [@system](https://community.wowza.com/u/system)
#### Post date: [June 27, 2019, 3:11pm UTC](https://community.wowza.com/t/nvidia-quadro-p5000-encoding-in-linux-working-on-gpu-but-also-using-cpu/53585/3 "2019-06-27T15:11:52Z")
Please run the following command which will show everything that your Nvidia cards are doing.
nvidia-smi -i 0 -q
You should see a section that looks as follows:
```auto
Utilization
Gpu : 46 %
Memory : 27 %
Encoder : 0 %
Decoder : 0 %
Encoder Stats
Active Sessions : 0
```
It is likely that your decoder and/or encoder is overloaded.
---
### Author:  [@Aleksandar\_Stojcevsk](https://community.wowza.com/u/Aleksandar_Stojcevsk)
#### Post date: [June 28, 2019, 7:43am UTC](https://community.wowza.com/t/nvidia-quadro-p5000-encoding-in-linux-working-on-gpu-but-also-using-cpu/53585/4 "2019-06-28T07:43:43Z")
Thank you for reply,
I change value in XML file to “NVENC” instead “default”.
Now CPU usage is better than before, now Wowza transcoding 20 rdp streams to 3 bitrates (1080p, 720p, 360p),
My machine CPU: Intel® Core™ i7-8700K CPU @ 3.70GHz, CPU usage: 80%.
RAM: 16GB
GPU usage: 1855MiB / 16275MiB
How many streams i can transcode with this machine?
Are this configuration is correct because GPU is used only 1855MiB/16275MiB ?
---
### Author:  [@Aleksandar\_Stojcevsk](https://community.wowza.com/u/Aleksandar_Stojcevsk)
#### Post date: [June 28, 2019, 7:46am UTC](https://community.wowza.com/t/nvidia-quadro-p5000-encoding-in-linux-working-on-gpu-but-also-using-cpu/53585/5 "2019-06-28T07:46:22Z")
Thank you for replay,
I run this command, following results are from this command:
```auto
GPU command:nvidia-smi -i 0 -q
FB Memory Usage
Total : 16275 MiB
Used : 1849 MiB
Free : 14426 MiB
Utilization
Gpu : 64 %
Memory : 4 %
Encoder : 22 %
Decoder : 41 %
```
Wowza transcoding 20 RDP input streams to 3 bitrates ( 1080p, 720p, 360p ).
On this machine CPU is : “Intel® Core™ i7-8700K CPU @ 3.70GHz” CPU usage on is: 80%