Bug 385561

Summary: Scalability performance issue displaying folders with many files
Product: [Fedora] Fedora Reporter: David Campbell <david>
Component: nautilusAssignee: Tomáš Bžatek <tbzatek>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: low    
Version: 8CC: s.adam, tsmetana
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OS: Linux   
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Last Closed: 2008-12-08 20:53:47 UTC Type: ---
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Description David Campbell 2007-11-15 20:51:02 UTC
Description of problem:

Nautilus has very bad scalability issues when it comes to viewing folders with
many files.  My tests in list mode show that nautilus can take a very long time
to even display the contents of a folder, and when it does display the folder,
the scrolling performance is atrocious.

My tests were done on a dual core cpu machine with 2gb of RAM and 256Mb of
graphics memory.

Version-Release number of selected component (if applicable):

2.20.0

How reproducible:

Always

Steps to Reproduce:
1. View a large folder in nautilus in list mode
2. Observe very poor performance
  
Actual results:

Very poor performance

Expected results:

Good performance

Additional info:

Comment 1 Stewart Adam 2008-08-13 14:24:26 UTC
I can confirm this as well with rawhide, version 2.23.6.1-1.fc10.x86_64.

Loading a folder with ~700 files is very slow and consumes 100% of one of the CPU cores. I'm running a Core2Duo at 2.13GHz, and there's no way listing 700 files should take as long as it does.

Comment 2 David Campbell 2008-08-13 20:48:05 UTC
Is there any chance that your 700 files contain TIF images?

If so, also see this bug:
https://bugzilla.redhat.com/show_bug.cgi?id=394831

Does the problem go away when you set System/Preferences/Personal/File Management/Preview/Show thumbnails to Never?

If so, then I'll mark this bug as a duplicate of the other.

Comment 3 Stewart Adam 2008-08-13 21:45:49 UTC
Nope, a few images but not TIFFs... Mostly media files. Turning off the preview didn't solve the problem either.

It might be worth noting that I noticed this problem last time I was using rawhide (when F9 was in development) - all GTK+ applications, not only nautilus, seem slower. So really this could be a GTK+ problem, but listing 700 files in nautilus is when it becomes really obvious.

Comment 4 Bug Zapper 2008-11-26 08:28:07 UTC
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Comment 5 Stewart Adam 2008-11-26 13:35:20 UTC
This was fixed for me a while back... But my problem was because some extra debugging code for GTK had been enabled in rawhide, I'm not sure if this is a different problem or not.

Comment 6 David Campbell 2008-12-08 20:53:47 UTC
Seems fixed in F10