Bug report #13299
Slow saving to network drive
| Status: | Closed | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: |  Jürgen Fischer | ||
| Category: | Project Loading/Saving | ||
| Affected QGIS version: | 2.12.0 | Regression?: | No |
| Operating System: | Windows | Easy fix?: | No |
| Pull Request or Patch supplied: | No | Resolution: | |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 21357 |
Description
Has anyone else experienced excessively slow saving of QGIS project files (not edited layers) when saving the project to a network drive?
We are noticing a 3-4MB project file will save almost instantaneously to the local C drive, but when saving to the network can take over 1 minute (you can literally watch the resulting file increase in size by about 100b/5secs).
I would normally say it must be network traffic/congestion or similar, however in file explorer we can drag-drop the same file (or much larger file) from the C drive to the same network location and it transfers almost immediately too... it is only slow when saving in QGIS directly.
Some kind of memory leak?
Related issues
Associated revisions
improve project saving to network shares (fixes #13299)
History
#1
Updated by Jakob Lanstorp over 8 years ago
I have the same problem with very slow save of a QGIS project on a network drive. Using the OSGEO4W QGIS 2.12.0.
#2
Updated by Gerhard Spieles over 8 years ago
Same problem with 2.10, win 7, 64bit
#3
Updated by Giovanni Manghi over 8 years ago
- Category changed from Browser to Project Loading/Saving
- Affected QGIS version changed from 2.10.1 to 2.12.0
For what I can remember saving on NFS/Samba shares was always ok for me, but I can give it a new try.
#4
Updated by Giovanni Manghi over 8 years ago
related to #11211?
#5
Updated by Jakob Lanstorp over 8 years ago
#11211 is the same problem as this issue.
This problem is due to how QGIS writes some of the files like project files and styles. A QGIS file is written in very small packages (7 bit I saw somewhere I cant find). Each package requires a control ping in return. Saving a 1 mb QGIS project file result in a large number of pings. My ping time for a 32 bytes package is 6 ms (pretty fast), but this adds up in time for a large project or style file. A 5 mb doc like MS WORD takes no time to save on a network, since they write larger packages.
#6
Updated by Jamie Portman over 8 years ago
Thanks Jakob....
Do you know if this something that could potentially be resolved in future releases?
ie. can it be made to write in larger packages like other software you mention?
#7
Updated by Carlos Lopez Quintanilla over 8 years ago
Same problem with 2.12, win7, 64bit.
when I save in localhost it takes 5 seconds, in network it delay more than 1 minute
#8
Updated by Giovanni Manghi over 8 years ago
see also #11211
#9
Updated by Giovanni Manghi over 8 years ago
Jakob Lanstorp wrote:
#11211 is the same problem as this issue.
This problem is due to how QGIS writes some of the files like project files and styles. A QGIS file is written in very small packages (7 bit I saw somewhere I cant find). Each package requires a control ping in return. Saving a 1 mb QGIS project file result in a large number of pings. My ping time for a 32 bytes package is 6 ms (pretty fast), but this adds up in time for a large project or style file. A 5 mb doc like MS WORD takes no time to save on a network, since they write larger packages.
Very interesting, could you please write your notes in the developers mailing list? thanks!
#10
Updated by Jürgen Fischer over 8 years ago
Giovanni Manghi wrote:
Very interesting, could you please write your notes in the developers mailing list? thanks!
#11
Updated by Jürgen Fischer over 8 years ago
- Assignee set to Jürgen Fischer
#12
Updated by Jürgen Fischer over 8 years ago
- Status changed from Open to Closed
Fixed in changeset 4530c2abbedc318be1e290ef9ed8ad020ede94b7.
#13
Updated by Jamie Portman over 8 years ago
Just tested and works perfectly!
Thanks.