Idea #2147: JFS by default

-61

Written by Rotbart van Dainig the 1 Mar 08 at 12:35. Category: Installation.
Related to: Nothing/Others. Status: New

Description

JFS is a robust, modern filesystem that performs not only well over all kind of usage, but also with the least CPU time consumption.
By default, it already supports features that are still developed for ext4 (extents, online defrag) or still need to be manually activated for ext3 (B-tree-index, extended attributes).

Basically, it is a filesystem that 'Justs works', without the user having to worry about mount options and the like.

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Comments

Auzy wrote on the 1 Mar 08 at 12:41

Its a bit sily to make a lesser tested filesystem the default. EXT3 should remain the default because it is better tested.

Maybe ensure that JFS is supported yet, but making it default is a bit risky.

qaaq wrote on the 1 Mar 08 at 18:34

This is not a good plan. If you want to use JFS, go ahead - EXT3 is widely used and very stable. It should remain the default.

rawsausage wrote on the 2 Mar 08 at 00:09

Lesser tested? JFS is the default file system of AIX, one of the very few true UNIXes left. It has likely been tested more than any other file system in the history of computing and it was ported to Linux by IBM employees that were familiar with it. JFS is on what for instance your bank account contents most likely are etc. It is rock solid.

The problem with EXT3 is that it does not handle large directories efficiently as it doesn't use more advanced tree algorithms for them. The point for JFS is quite valid.

However a warning: JFS has got weak spot. It is deleting large amounts of files. The performance degrades when you're doing that.

Auzy wrote on the 4 Mar 08 at 01:06

The idea was to make it default. Not to improve support for it ..

Do you think it should be made the default?

tbrminsanity wrote on the 6 Mar 08 at 20:32

Yes

tallman wrote on the 18 May 08 at 09:09

JFS gets very fragmented over time, I don't use it even when it's optional. Make ext4 the default, it has improved considerably.

gator wrote on the 20 Jul 08 at 14:31

JFS is both robust and scalable
Its low cpu usage is good for older computers - its works well with large files like mythtv produces - its well tested, 100's of thousands or millions of filesystems are using JFS.
Built by IBM, enuff said.
Ive used it myself on laptops and servers with no issues yet.
ext3 is good and stable but a little slow - ok i know about the 'performance tweaks' but joe user doesnt want to.
Lost files with XFS after power failure, although it was fast and showed promise... but i do get power cuts when running 24/7
Lets go JFS, its adoption will only strengthen any (if any ) weakness it has.
Steve

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