Jumpy Cursor even with snap and grid turned off ?

Jumpy Cursor even with snap and grid turned off ?

hari.lallGSCRP
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Message 1 of 29

Jumpy Cursor even with snap and grid turned off ?

hari.lallGSCRP
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Enthusiast

Hi all,

My PC recently got upgraded to following:

HP Z2 workstation running windows 10 with

i5-8600 cpu @3.10GHz

32.0 GB RAM

Nvidia Quadro P2200 graphics

 

I am experiencing Jumpy and erratic behavior of cursor when I have couple of xrefs in drawings. This mainly happens when I have a base map inserted as an xref and even with all the snaps and grids turned off. I have started to wonder if this processor is not good enough for the tasks i am doing? Any pointers will be much appreciated, specially if someone is running i5-8600 cpu on there workstation.  

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Message 21 of 29

hari.lallGSCRP
Enthusiast
Enthusiast

Hi yes I have tried the same drawing on different computer with the same specs and both PC were build at the same time. Issue remains. Could you please advise on how to un-install the latest updates as I don't see an separate option for this ? 

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Message 22 of 29

RobDraw
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Mentor

I think you're going to find out that the problem lies in the XREF.

 

Good luck. 


Rob

Drafting is a breeze and Revit doesn't always work the way you think it should.
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Message 23 of 29

hari.lallGSCRP
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Enthusiast

Folks

 

I tried the process of elimination. Divide the xref into half and half and see it how it behaves and I can confirm the problem is not the xref but the excessive data in xref which the CPU cannot process. If I divide my xref in 2 parts and bring it in one at a time there is not issue. Bring both in and I am back to square one. During this task I was also keeping an eye on the PC performance manager. Even attaching, detaching and panning is giving a huge spike in cpu utilization. Jumping from about 5-10% to 60-70%. 

 

Anyway my conclusion based on this and all the advise given on this post is that my CPU is bottle necking the drafting procedure when huge data is xref'd into a drawing. So to back to IT for an upgrade 😞

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Message 24 of 29

RobDraw
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Mentor

@hari.lallGSCRP wrote:

Folks

 

I tried the process of elimination. Divide the xref into half and half and see it how it behaves and I can confirm the problem is not the xref but the excessive data in xref which the CPU cannot process. If I divide my xref in 2 parts and bring it in one at a time there is not issue. Bring both in and I am back to square one. During this task I was also keeping an eye on the PC performance manager. Even attaching, detaching and panning is giving a huge spike in cpu utilization. Jumping from about 5-10% to 60-70%. 

 

Anyway my conclusion based on this and all the advise given on this post is that my CPU is bottle necking the drafting procedure when huge data is xref'd into a drawing. So to back to IT for an upgrade 😞


 

I would have used a similar process for testing but I don't think it's an inadequate processor. A better one may hide the issue, it might not, but unless this workflow is well established and other people doing the same thing require a better processor, I wouldn't come to that conclusion.

 

Most of the time these issues can be solved with proper file processing, i.e. cleaning up. If this is a file from a 3rd party source, you can't rule out bad CAD without further investigation. That's why we ask to see the file. Some of the people here are really good at finding issues with files.

 

I would post your question in the C3D forum if you absolutely cannot share the file. This is the AutoCAD forum and there are a lot of things about C3D that primarily AutoCAD users may not know.


Rob

Drafting is a breeze and Revit doesn't always work the way you think it should.
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Message 25 of 29

hari.lallGSCRP
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Enthusiast

Rob

 

I understand what you are saying and completely agree with you. My reason for believing this as a processor issue is because same drawings were working perfectly fine on previous computer. Windows 7 with quad Core i3 3.4 GHz processor and Civil 3D 2017. The base maps are provided by Ordnance Survey Ireland directly, who is the mapping authority in Ireland so they are clean and get updated every year.

 

I have done my fair share of cleaning drawings and finding faults in existing drawings in past 10 years. After going through whats being advised here and my own experience I didn't see anything which I didn't already knew. I just wanted to confirm that i was not missing out on anything (specially new advancements or features introduced in 2020) before coming to this conclusion. I did advise IT that i want a higher base clock CPU but they end up giving me this workstation based on google research. The vector mapping we use is very detailed (1:1000 in some areas) and it does test the hardware to limits. 

 

What I also tried was to open my existing C3D corridor model and do a Drive on existing alignment. This use to run fine on previous machine (with on board graphics) all bit with a stutter, where as on this machine it takes forever to start and just plane refuses to do anything (with Quadro P2200). Sorry I didn't explain everything in detail before. I joined forums today for the first time just to double check my assumptions about CPU before i start giving out to our IT team.  

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Message 26 of 29

hari.lallGSCRP
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Enthusiast

Please see attached screen grab to put everything in perspective, specially when I say in some areas vector mapping is at 1:1000 detail. which in reality translates to 1:1 as it is drawn in meters.

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Message 27 of 29

hari.lallGSCRP
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Enthusiast
Accepted solution

Folks

 

Quick update if any of you are experiencing the same issue. Please make sure to turn off UCSDETECT (change it from 1 to 0) Everything is working as it should for now. Machine is still bit slow but I will manage. Thanks for all the comments and help. 

Message 28 of 29

ajimenezT6FXR
Observer
Observer

Thank you, that fixed my problem! Just started snapping after a few months of using Turing Edition.

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Message 29 of 29

mgdean10
Community Visitor
Community Visitor

BLESS YOU!

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