FC hangs with 50% CPU usage upon new Sketch creation

[NoTrees]

OS: Windows XP
Word size of OS: 32-bit
Word size of FreeCAD: 32-bit
Version: 0.16.6706 (Git)
Build type: Release
Branch: releases/FreeCAD-0-16
Hash: f86a4e411ff7848dea98d7242f43b7774bee8fa0
Python version: 2.7.8
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17

Process that creates the issue:
Start FreeCAD, workbench: PartDesign
>File/New
>Create Sketch
>Choose Orientation: {select any of the three options, Reverse unchecked, 0 mm offset} > OK
FC CPU usage shoots to 50% for several minutes, and display hangs, busy hourglass, other applications work OK
Same issue when trying to Create New Sketch in a functional drawing
Seems like all other normal functions/processes work with existing drawings.

No logs created (at least none found)

Suggestions?

Thanks!

[renatorivo]

Word size of OS: 32-bit
Word size of FreeCAD: 32-bit

This may be useful: https://forum.freecadweb.org/viewtopic.php?t=13619
You can search for other posts by typing "32bit"

No logs created (at least none found)

The log file should be here

file-log.png (21.92 KiB) Viewed 1250 times

[chrisb]

Some things to consider:
- Do you really need the 32 bit version? There are not many users out there to reproduce your problem, but I guess this basic thing would have been reported before.
- Did you watch the Windoze Task Manager? Is it really FreeCAD? Watch the paging. It is possible that your system starts swapping to disk.

[GeneFC]

Do you really need the 32 bit version?

According to

https://github.com/FreeCAD/FreeCAD/releases

version 0.16.xxxx support for Windows XP is 32 bit only. I do not believe there is any support for Windows XP in version 0.17.xxxx

Gene

[NoTrees]

Failed to specifically mention that the setup (yes, it is XP!) has been working for about 2 years now! Existing files display and navigate fine, until i Create New Sketch. Problem just began last week.
Found the folder: user/AppData/FreeCAD but it does not contain a log file.

TaskManager 'correctly' shows FreeCAD as the culprit; kill it and CPU goes to 2%. Perhaps next step should be to reload the program.

[renatorivo]

Found the folder: user/AppData/FreeCAD but it does not contain a log file.

Run

Code: Select all

C:\Program Files\FreeCAD 0.16\bin\FreeCAD.exe --h

avvio.png (6.41 KiB) Viewed 1173 times

you can see where the log file is created

avvio1.png (17.41 KiB) Viewed 1173 times

[NoTrees]

Thanks Renatorivo!! Appreciate your assistance and suggestions!

Removed FC, then reloaded it. No success; same issue.

Looked at preferences, and saw that Display / Sketcher / Grid Size was set to 1 micrometer!! (Oh, the horror! no clue how that happened!)

Changed it to 1 mm, and Sketcher appears to work as normal!

If I ever want to draw/build anything sub-microscopic, I will update my 1.66GHz system to something that can handle it!!

Thanks!