# ParaView 5.11 vs 5.6

**URL:** https://discourse.paraview.org/t/paraview-5-11-vs-5-6/11261
**Category:** ParaView Support
**Created:** [January 25, 2023, 12:44am UTC](https://discourse.paraview.org/t/paraview-5-11-vs-5-6/11261 "2023-01-25T00:44:50Z")
**Posts on this page:** 13
**Page:** 1

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### Author: ![Ali\_Rahnama](https://discourse.paraview.org/user_avatar/discourse.paraview.org/ali_rahnama/32/5391_2.png) [@Ali\_Rahnama](https://discourse.paraview.org/u/Ali_Rahnama)
#### Post date: [January 25, 2023, 12:44am UTC](https://discourse.paraview.org/t/paraview-5-11-vs-5-6/11261/1 "2023-01-25T00:44:50Z")

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Why ParaView 5.11 is much slower compared to 5.6? For a simple geometry (.obj file) loading case I tried both of them, and 5.6 is much faster.

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [January 25, 2023, 8:49am UTC](https://discourse.paraview.org/t/paraview-5-11-vs-5-6/11261/2 "2023-01-25T08:49:32Z")

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Hi @Ali_Rahnama

Please share your data.

Best,

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### Author: ![Ali\_Rahnama](https://discourse.paraview.org/user_avatar/discourse.paraview.org/ali_rahnama/32/5391_2.png) [@Ali\_Rahnama](https://discourse.paraview.org/u/Ali_Rahnama)
#### Post date: [January 25, 2023, 6:13pm UTC](https://discourse.paraview.org/t/paraview-5-11-vs-5-6/11261/4 "2023-01-25T18:13:03Z")

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Hi Mathieu,

It’s a simple macro that reads 5 object file and hides them and shows the first one. Compare it for 5.6 and 5.11 and you’ll notice the difference.

Best,  
[kir2.py](https://discourse.paraview.org/uploads/short-url/25Pwes5HCMqJ5GugAOiZLmMgXFY.py) (11.3 KB)

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [January 25, 2023, 6:29pm UTC](https://discourse.paraview.org/t/paraview-5-11-vs-5-6/11261/5 "2023-01-25T18:29:29Z")

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please share the obj files

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### Author: ![Ali\_Rahnama](https://discourse.paraview.org/user_avatar/discourse.paraview.org/ali_rahnama/32/5391_2.png) [@Ali\_Rahnama](https://discourse.paraview.org/u/Ali_Rahnama)
#### Post date: [January 25, 2023, 7:48pm UTC](https://discourse.paraview.org/t/paraview-5-11-vs-5-6/11261/6 "2023-01-25T19:48:29Z")

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Here you are,

Thanks!

[obj2.obj](https://discourse.paraview.org/uploads/short-url/s66fTsuMPYSW9mJNoNb936liFNe.obj) (36.5 KB)

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### Author: ![wascott](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/w/8e8cbc/32.png) [@wascott](https://discourse.paraview.org/u/wascott)
#### Post date: [January 25, 2023, 7:51pm UTC](https://discourse.paraview.org/t/paraview-5-11-vs-5-6/11261/7 "2023-01-25T19:51:34Z")

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I have seen this behavior before when configuration files get corrupted. One idea would be to Edit/ Reset to Default Settings…

Another would be to look at Help/ About. Make sure 5.11 and 5.6 are both rendering in hardware (not mesa).

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [January 26, 2023, 6:27am UTC](https://discourse.paraview.org/t/paraview-5-11-vs-5-6/11261/8 "2023-01-26T06:27:28Z")

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Unable to reproduce with ParaView 5.11.0 on Linux.

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### Author: ![Ali\_Rahnama](https://discourse.paraview.org/user_avatar/discourse.paraview.org/ali_rahnama/32/5391_2.png) [@Ali\_Rahnama](https://discourse.paraview.org/u/Ali_Rahnama)
#### Post date: [January 26, 2023, 10:08pm UTC](https://discourse.paraview.org/t/paraview-5-11-vs-5-6/11261/9 "2023-01-26T22:08:30Z")

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I’ve tried it on linux too. It’s the same. Evene loading one simple object takes longer for 5.11

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### Author: ![Ali\_Rahnama](https://discourse.paraview.org/user_avatar/discourse.paraview.org/ali_rahnama/32/5391_2.png) [@Ali\_Rahnama](https://discourse.paraview.org/u/Ali_Rahnama)
#### Post date: [January 26, 2023, 10:09pm UTC](https://discourse.paraview.org/t/paraview-5-11-vs-5-6/11261/10 "2023-01-26T22:09:49Z")

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Thanks, but I haven’t changed the configuration.  
So if not rendering in hardware, can I make it ok? I mean can I force it to render in hardware?

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [January 27, 2023, 7:35am UTC](https://discourse.paraview.org/t/paraview-5-11-vs-5-6/11261/11 "2023-01-27T07:35:59Z")

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Please share Help → About dialog content.

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### Author: ![wascott](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/w/8e8cbc/32.png) [@wascott](https://discourse.paraview.org/u/wascott)
#### Post date: [January 30, 2023, 7:47pm UTC](https://discourse.paraview.org/t/paraview-5-11-vs-5-6/11261/12 "2023-01-30T19:47:22Z")

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I didn’t say you changed the configuration. I said the configuration files may be corrupt. I would still try Resetting to Default Settings.

And what Mathieu says is spot on - we need the About content.

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### Author: ![PetrKryslUCSD](https://discourse.paraview.org/user_avatar/discourse.paraview.org/petrkryslucsd/32/5908_2.png) [@PetrKryslUCSD](https://discourse.paraview.org/u/PetrKryslUCSD)
#### Post date: [January 31, 2023, 12:37am UTC](https://discourse.paraview.org/t/paraview-5-11-vs-5-6/11261/13 "2023-01-31T00:37:49Z")

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I have observed the same kind of slowdown on Windows 10 64-bit. ParaView 5.11 is slooow.

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### Author: ![PetrKryslUCSD](https://discourse.paraview.org/user_avatar/discourse.paraview.org/petrkryslucsd/32/5908_2.png) [@PetrKryslUCSD](https://discourse.paraview.org/u/PetrKryslUCSD)
#### Post date: [January 31, 2023, 12:54am UTC](https://discourse.paraview.org/t/paraview-5-11-vs-5-6/11261/14 "2023-01-31T00:54:34Z")

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Sorry, 5.10 was slow. 5.11 seems to be okay.