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Old 03-26-2007, 04:59 AM   #1
staham
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Registered: May 2006
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Performance of ext3 file system with large files


Hi,

Has anyone been experimenting with ext3 file systems that only has large files on it?
I have a few file systems with 15-30 50 GB files on them. Things like ls seem to take ages.
It takes 5-10 seconds just to list the root directory with maybe 25 files.
Deleting files takes hours. Creating files seems to be quite slow as well.

I don't know if it is ext3 that is this slow, or if there is something else (driver problem?) that is not working as it should.

Does anyone know if access to the file system is supposed to be slow as well? No it's not.

I know that xfs is a lot faster on some operations with large files, but Redhat doesn't support xfs.

Last edited by staham; 04-22-2007 at 03:18 AM.
 
Old 03-26-2007, 07:44 AM   #2
IBall
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What version of Redhat are you using? I think you should be able to add XFS or JFS support.

ext3 is not a bad all-purpose file system, but it is significantly slower on large files. I use XFS for my MythTV recordings (although it is not on a RH System).

--Ian
 
Old 03-26-2007, 08:06 AM   #3
staham
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Redhat Enterprise 4.
As far as I've seen while browsing the web, they don't seem to support xfs because xfs needs a larger stack size (8k) than RHEL is using. Also, they say, ext3 is just as good.

Update: It was just a temporary problem. Obviously it was more loaded than I thought.

Last edited by staham; 04-22-2007 at 03:18 AM.
 
  


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