[solved] Windows network drives slow
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Attach drawing files and screenshots.
Post one question per topic.
[solved] Windows network drives slow
From a QCAD user:
It takes a very long time for QCAD to retrieve directories and files from a network drive. How can I speed this up?
It takes a very long time for QCAD to retrieve directories and files from a network drive. How can I speed this up?
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- Newbie Member
- Posts: 6
- Joined: Tue Aug 18, 2015 10:07 pm
Re: Windows network drives slow
I am also having the same problem. I have upgraded Qcad about three times this year with same issue. I am on Windows 7, Qcad version 3.10.0.0. Mapped network drive is accessed by three Windows 7 computers and they all have the same issue. I access the NAS drive with only one Qcad at a time. Sometimes takes 1 minute to read and/or write to the network drive. Other apps that I use (Draftsight, Adobe Illustrator, Photoshop, etc.) read/write very quickly to NAS as normal.
Qcad reads/writes normal speed to local drive. Can this PLEASE be addressed?
Thanks,
Brad
Qcad reads/writes normal speed to local drive. Can this PLEASE be addressed?
Thanks,
Brad
- hungerburg
- Premier Member
- Posts: 160
- Joined: Fri May 28, 2010 7:35 pm
Re: Windows network drives slow
Seeing this too, I did some network sniffing: Opening a directory with eight entries, no subdirectories, in windows explorer gives 130 packets on the wire; opening another such directory in qCAD file browser makes for 600 packets - That may explain the difference in access speed. As a matter of fact, LAN is slower than ftp to the other side of the world.
Now, what does QT do different from explorer? A quick web-search turned up nothing…
Now, what does QT do different from explorer? A quick web-search turned up nothing…
Last edited by hungerburg on Mon Dec 07, 2015 5:24 pm, edited 1 time in total.
- hungerburg
- Premier Member
- Posts: 160
- Joined: Fri May 28, 2010 7:35 pm
Re: Windows network drives slow
A possible reason: https://codereview.qt-project.org/#/c/54983/
- hungerburg
- Premier Member
- Posts: 160
- Joined: Fri May 28, 2010 7:35 pm
Re: Windows network drives slow
Made it a task -- http://www.qcad.org/bugtracker/index.ph ... sk_id=1320
Seen also there -- https://github.com/mbunkus/mkvtoolnix/issues/1459
Seen also there -- https://github.com/mbunkus/mkvtoolnix/issues/1459
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- Newbie Member
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- Joined: Tue Aug 18, 2015 10:07 pm
Re: Windows network drives slow
Excellent! Thanks hungerburg.
Re: Windows network drives slow
Today, I've uploaded 64bit packages for Windows which link against Qt 5. This might improve the situation with the file dialog. Please let me know if that is or is not the case.
- hungerburg
- Premier Member
- Posts: 160
- Joined: Fri May 28, 2010 7:35 pm
Re: Windows network drives slow
Happy to tell, its fixed
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- Newbie Member
- Posts: 6
- Joined: Tue Aug 18, 2015 10:07 pm
Re: Windows network drives slow
I upgraded to 3.12.4.1 and opened some files on my NAS drive. Holy Cow, no more waiting! It's fixed!
Thanks so much!
Thanks so much!