Extremely slow Inventor performance al of a sudden.

[Anonymous]

Inventor worked well at my computer. Then one day suddenly the performance got bad. Inventor was more or less got useless on both small and big assemblies. I didn’t find out what it could be. So I uninstalled Inventor and then reinstalled. Then the performance was back. After a while the same thing happened again. The same has happened for one of my colleague. Does anyone have an idea what it can be?

I’ve tried to search the discussion group for answer. This looked similar but without a solution.

http://forums.autodesk.com/t5/inventor-general-discussion/inventor-2014-pro-stupidly-slow-all-of-a-s...

Inventor Pro 2015 SP1 + updates.

Microsoft Windows 7 Enterprise 64-bit

HP Z820 Workstation

Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz, 2400 Mhz, 4 Core(s)

Installed Physical Memory (RAM)    24.0 GB

[cbenner]

Are you using a network?  Vault?  What else is running along with Inventor?  How many files are open when you see this behavior?

[johnsonshiue]

Hi! I assume you have already turned off "Quick File Open" in Application Options -> Files and also turned off "Superfetch" service in Task Manager -> Services. Is that true?

If yes, could you try one more test? Use Add-In manager or start Inventor -> go to Tools -> Add-Ins -> turn off all Add-Ins. Restart Inventor. Does it still perform poorly?

Thanks!

[Anonymous]

Hi. Thanks for your replay. We use Vault. So we download files to our local computers. Inventor was slow even if it was the only program running except all standard programs as antivirus etc. Inventor was slow when saving, dragging etc. even if the only open file was an assembly with tree simple files. Inventor could freeze 1 min. after each command.

I haven’t tried to do the steps you suggest Johnson. I can’t do it myself since I’ve reinstalled and all works fine for me now. But my colleague has the problem at the moment. He is away and will be back on Friday. Then we’ll try and report back here.

[cbenner]

Check the communication speed with your Vault server, is there anything choking the pipeline?  Anything IT can do to give you more speed?

[Anonymous]

Hi again.

Finally we have tested your suggestions Johnson. They didn’t seem to have any effect. Inventor was still very slow.

It can’t be the connection speed with the Vault server. When we disabled all Add-ins we disabled Vault as well.

[Mark.Lancaster]

petter.molderstad

A couple of other things to check...

Is your Inventor design data locally or shared across the network?

How much disk space is your C:\User\<user name>\Appdata\local\Temp folder consuming?   Have you cleaned (delete files/folders) that folder out lately?

[Anonymous]

Hi Mark.

We did switch to having design data on the network a while ago. I don’t think that is the reason since we are a lot of users without equal problems.

My colleague had to be efficient in Inventor again so he reinstalled again now. Then all is ok again. He didn’t get time to try to delete <C:\User\<user name>\Appdata\local\Temp folder consuming?>, but all is ok after reinstall. He noticed that now when he open files in Inventor from Vault the download goes a lot faster after reinstall. Could that give a hint of what that can be the problem?

[Anonymous · Accepted solution]

The problem returned to me lately. I did some investigating and found the cause of the problem. It’s related to the AcWebBrowser.exe process started on Inventor startup if “Show My Home on startup” is enabled in Application Options in Inventor. On nearly each command in Inventor the AcWebBrowser process used all of the CPU in about 5 second making Inventor hanging. When I disabled “Show My Home on startup” the process never started and Inventor worked as usual. 

[PaulMunford]

More info:

http://beinginventive.typepad.com/being-inventive/2014/08/inventor-2015-freezes-at-the-start-up.html

[Anonymous]

Thanks so much. This worked like a charm. Be blessed.

[Anonymous]

I recently ran into this same problem and I too recall accidentally clicking the "Show My Homepage...". However, even after unclicking the option the problem persisted in my files. It would take minutes for a simple LOFT command window to pop up, to say nothing of the delays when choosing my sketches/lines thereafter. After wasting 2 whole days installing and re-installing and trying to do all the various patch updates, it occurred to me that the file itself may have been 'corrupted' I checked the Document Setting, but found nothing in there to adjust. I then decided to open up an earlier saved version of my part file and, lo and behold,  all of the functions activated in an instant or timely fashion. So be mindful that some of this acwebbrowser.exe issues may be somehow tying itself to the part files themselves.

I would share the files for review and comparison, but unfortunately, they are proprietary design files.

[Anonymous]

UPDATE: Found the real problem. I had a certain sketch that had multiple overlapping curves (apparently an error in copy-paste where I was putting the same sketch on top of itself rather than on another plan). Compounding the is that I had this sketch copied to another plane. The moment that I deleted that sketch, my various 3-D commands returned to lightening quick prompting. Apparently, the software was attempting to verify any and all LOFT and EXTRUDE options before providing me the command window.

Clearly, another reminder to SKETCH DOCTOR each and everyone of your sketches, however, it would be nice if I could find a way to determine such a problem with a single over-arching command.

[TenaciousCat]

God bless.  I would've never figured that out!

[Anonymous]

Had the same issue; very slow 2016 Inventor and the Homepage startup solved it!

[Anonymous]

I am  facing an issue with Inventor 2018 drawing, which stops working after few minutes of opening and not responding to update any changes in the drawing, though i leaved the drawing opened for 2 hours.

I am thinking the problem will be, the drawing contains multiple sketches by using draft option in inventor drawing,

also some of the sketched symbols are also present in the same drawing, which were created by using by dxf format and imported in the sketch environment.

Let me know which action i have to perform to resolve this issue.

Also the drawing do not consists & no inks with any of the models, entire drawing was created only using sketch and custom sketched symbols.

Manjunath Guptha Penjuru
+91-9948495515
India. 

[johnsonshiue]

Hi! Based on your description, it sounds more like graphics related. Let me ask you a few questions.

1) What is the machine spec? Start an new file in Inventor and go to Tools -> Application Options -> Hardware -> Diagnosis -> paste it to Notepad and upload the text file here.

2) Have you installed 2018.3 update followed by 2018.3.3 update?

3) Is the graphics card driver up-to-date? Are you using the dedicated graphics card or the embedded graphics card to run Inventor?

4) Are all critical Windows updates installed? 

5) Do you access Material and Appearance Library locally or via network?

6) Did you clean up %temp%? Go to File Explorer -> %temp% -> delete all files.

Many thanks!