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Old 04-25-2002, 04:23 AM   #1
L33t_H4x0R
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Question Journaling File Systems


If (FileSystemOnYourLinuxBox = Journaling)
{
WhichOneDoYouUse() && Why()
}
 
Old 04-25-2002, 05:34 AM   #2
Mik
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I still use a lot of ext2 but for the journaling filesystems I chose reiserfs. Main reason was because of speed:

http://www.namesys.com/benchmarks/be...k-results.html
 
Old 04-25-2002, 07:05 AM   #3
5amYan
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ext3 is journaling. Right?
 
Old 04-25-2002, 01:18 PM   #4
Jedman
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Question

Isn't SGI's XFS file system faster than Reiser FS? That's what I've been told, just want to confirm it?

Jed
 
Old 04-25-2002, 01:47 PM   #5
crashmeister
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Depends on who you ask - I read an interview with all the developers one day (ext2/3 reiser JFS and XFS). Of course each one is the fastest. It seems to depend largely on the filesize. Reiser is very fast with small files.
 
Old 04-25-2002, 05:01 PM   #6
5amYan
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faster!!

XFS and JFS use B+ trees(balanced)
Reiser uses B* trees (enhanced balanced<my term??)ext3 adds logging capability to ext2 = slowwww also still a beta.

XFS, JFS and ext3 journal meta data only.
Reiser journals metadata and data.

Reiser is the only journalled filesys built for linux.
JFS and XFS are ports. They may have impressive stats in some cases, but those stats are usually for their native OSes. Under linux they are still having their code purged of native OS specifics. They are also subject to the constraints of the linux kernels VFS (Virtual File System). Resiser is designed for linux and thusly it's figures are more in line with what you would get from any jounalled fs

If you know i'm wrong please correct.
 
Old 04-25-2002, 05:19 PM   #7
crashmeister
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The fastest filesystem on my box is - according to hdparm -t - the FAT32 partition.
 
Old 04-25-2002, 05:29 PM   #8
jeremy
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By default ReiderFS only does meta-data journaling. There is a patch from Chris Mason that implements full data journaling. ext3 lets you choose between the two (data=writeback or data=journal).

--jeremy
 
Old 04-25-2002, 05:29 PM   #9
5amYan
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FAsT32

Is it the only fs?
FAT 32 is the 32 bit version of FAT (File Allocation Table)
FAT is a holdover from 8 bit DOS days

As a testament to M$ commitment to innovation an d new developements. NTFS (w2k on) is stolen (I mean exactly 5imilar) to IBMs HPFS (High Performance File System) from OS/2.
 
Old 04-25-2002, 06:26 PM   #10
crashmeister
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I got currently reiser fs on the linuxpartition - I tried ext2 and JFS - reiser fs was - always according to hdparm - the fastest of the Linuxfilesystems. But FAT32 still gives me the fastest readout - pi**es me off!!
 
  


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