# Paraview - Poor performance -Ubuntu
**URL:** https://discourse.paraview.org/t/paraview-poor-performance-ubuntu/6343
**Category:** ParaView Support
**Created:** [January 29, 2021, 3:25pm UTC](https://discourse.paraview.org/t/paraview-poor-performance-ubuntu/6343 "2021-01-29T15:25:17Z")
**Posts on this page:** 12
**Page:** 1
### Author:  [@Dellinger](https://discourse.paraview.org/u/Dellinger)
#### Post date: [January 29, 2021, 3:25pm UTC](https://discourse.paraview.org/t/paraview-poor-performance-ubuntu/6343/1 "2021-01-29T15:25:17Z")
Hi every one,
I have a problem with Paraview 5.6.0 - 64 Bit on Ubuntu 18.04. Although I have a strong configuration with two Epyc 7402 24-core, 128 Go Ram and a RTX 2070 super, the software is very slow (low frame-rate) on Ubuntu 18.04. I already try with the new version on Ubuntu 20 and with NVidia driver and [XX.org](http://XX.org) driver… I don’t have this problem on windows (I have a dualboot).
Has anyone an idea of what could be the problem?
Thanks a lot in advance for your help!
Best,
Guilhem
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [January 29, 2021, 3:28pm UTC](https://discourse.paraview.org/t/paraview-poor-performance-ubuntu/6343/2 "2021-01-29T15:28:40Z")
1. Update to ParaView 5.9.0
2. Check the your dirvers on in use by sharing the content on the Help -\> About dialog
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### Author:  [@Dellinger](https://discourse.paraview.org/u/Dellinger)
#### Post date: [January 30, 2021, 3:14pm UTC](https://discourse.paraview.org/t/paraview-poor-performance-ubuntu/6343/3 "2021-01-30T15:14:34Z")
Hi,
Thanks for your answer! I don’t know how to update paraview as I use paraview with openFoam, i.e. I use paraFoam.
When I go in Help -\> About, i have :
Once again, thx for your help.
Best,
Guilhem
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [February 1, 2021, 8:47am UTC](https://discourse.paraview.org/t/paraview-poor-performance-ubuntu/6343/4 "2021-02-01T08:47:25Z")
You are using mesa,you are not using your GPU, what is the output of ?
`glxinfo | grep Vendor`
In any case, download the last version of ParaView for your system here:
[https://www.paraview.org/download/](https://www.paraview.org/download/)
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### Author:  [@Dellinger](https://discourse.paraview.org/u/Dellinger)
#### Post date: [February 1, 2021, 1:16pm UTC](https://discourse.paraview.org/t/paraview-poor-performance-ubuntu/6343/5 "2021-02-01T13:16:57Z")
The output of `glxinfo | grep vendor` is :
server glx vendor string: NVIDIA Corporation
client glx vendor string: NVIDIA Corporation
OpenGL vendor string: NVIDIA Corporation
Is it possible to choose between Mesa and the GPU directly in paraview?
yes, I will install the latest version of paraview.
Thx
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [February 1, 2021, 2:25pm UTC](https://discourse.paraview.org/t/paraview-poor-performance-ubuntu/6343/6 "2021-02-01T14:25:18Z")
ParaView should detect your GPU automatically unless you are using options or configurations.
Let me kow how it goes with a newer ParaView
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### Author:  [@Dellinger](https://discourse.paraview.org/u/Dellinger)
#### Post date: [February 1, 2021, 2:39pm UTC](https://discourse.paraview.org/t/paraview-poor-performance-ubuntu/6343/7 "2021-02-01T14:39:20Z")
It works fine with the new version of paraview (5.9)! There is OpenGL NVidia. Thx a lot!
Don’t know why “paraFoam” use OpenGL with MESA… Is there an option to modify?
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [February 1, 2021, 2:43pm UTC](https://discourse.paraview.org/t/paraview-poor-performance-ubuntu/6343/8 "2021-02-01T14:43:43Z")
You will have to ask paraFOAM developpers.
@olesenm
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### Author:  [@olesenm](https://discourse.paraview.org/u/olesenm)
#### Post date: [February 1, 2021, 3:00pm UTC](https://discourse.paraview.org/t/paraview-poor-performance-ubuntu/6343/9 "2021-02-01T15:00:51Z")
@Dellinger Probably too vague to write about “paraFoam”. The OpenFOAM reader module is just a module, it has no impact on OpenGL/MESA etc, those are all defined by ParaView itself.
As @mwestphal noted, it is best to try with a fresh binary of 5.9.0, so that we know that we are all speaking of the same thing. Use the regular native ParaView/VTK reader for the OpenFOAM files. It works for the vast majority of cases.
See the entry [“Do I _really_ need the ParaView plugins?”](https://develop.openfoam.com/Development/openfoam/-/wikis/modules/visualization#do-i-really-need-the-paraview-plugins) for a quick overview.
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### Author:  [@Dellinger](https://discourse.paraview.org/u/Dellinger)
#### Post date: [February 1, 2021, 3:09pm UTC](https://discourse.paraview.org/t/paraview-poor-performance-ubuntu/6343/10 "2021-02-01T15:09:42Z")
Yes I will stay on the 5.9 version of paraview instead using paraFoam which launch paraview 5.6.
Thx a lot for your help!
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### Author:  [@olesenm](https://discourse.paraview.org/u/olesenm)
#### Post date: [February 1, 2021, 3:28pm UTC](https://discourse.paraview.org/t/paraview-poor-performance-ubuntu/6343/11 "2021-02-01T15:28:07Z")
> Yes I will stay on the 5.9 version of paraview instead using paraFoam which launch paraview 5.6.
You may also wish to use one of the OpenFOAM Ubuntu packages that we maintain:
> **[OpenFOAM® Download](https://dl.openfoam.com/)**
>
> Repository of Official OpenFOAM® packs
Here are the [_ **installation instructions** _](https://develop.openfoam.com/Development/openfoam/-/wikis/precompiled/debian).
Note that this one has a finely granulated set of sub-packages, so you install as much as you need.
The openfoam shell session makes it easy to quickly run a different version.
The openfoam-selector provides a mechanism for more permanent switching of versions.
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### Author:  [@Dellinger](https://discourse.paraview.org/u/Dellinger)
#### Post date: [February 1, 2021, 3:31pm UTC](https://discourse.paraview.org/t/paraview-poor-performance-ubuntu/6343/12 "2021-02-01T15:31:27Z")
Thx Mark, I will try!