ext4! the speeeeeeeeeeeeeeeeeed!

[|eafhound]

http://vizzzion.org/?id=reiser4

conclusion.
Overall reiser4 seems to win it, although the results are not weighed. In most cases, reiser4 does a pretty good job. When it comes to copying lots of small files, reiser4 is very fast, especially compared to xfs, end even more to compared to jfs.

It seems that, apart from all other features, users of reiserfs 3 will gain lots of speed when upgrading to reiser4. Running the benchmarks on a spare disk was a very good idea.

[jespdj]

That diagram on Ars Technica looks impressive, but do not take this literally, without thinking.

Ext4 is NOT going to be more than twice as fast for any kind of disk operation. And note that the test by Phoronix was done with a solid state drive, and not with a traditional harddrive. The numbers for a traditional harddrive, which has very long seek times compared to an SSD, could be totally different than what this benchmark shows. The title of the Ars Technica article is misleading ("Super fast Ext4 filesystem...").

It's not realistic to expect that the filesystem will suddenly be more than twice as fast on any computer.

Some of the other diagrams from the benchmark show something completely different:

[CarpKing]

Will I see any benefit from this if I only use it for /? I reinstall every release, but changing /home would be more trouble.

[cdekter]

Will I see any benefit from this if I only use it for /? I reinstall every release, but changing /home would be more trouble.

I read somewhere that it's going to be possible to convert ext3 to ext4, rather than having to reformat.

[andrewabc]

I read somewhere that it's going to be possible to convert ext3 to ext4, rather than having to reformat.

Yep it is possible. Not sure how, but everyone says it is possible. google it.

[mips]

I read somewhere that it's going to be possible to convert ext3 to ext4, rather than having to reformat.

http://kernelnewbies.org/Ext4#head-3...148a1e28c6a9d4
http://kernelnewbies.org/Ext4
http://www.ibm.com/developerworks/li...xt4/index.html

[sofasurfer]

So if Juanty uses ext 4, I guess I can not dual boot it with Intrepid (ext 3)?

[smartboyathome]

So if Juanty uses ext 4, I guess I can not dual boot it with Intrepid (ext 3)?

You can, but EXT4 is not backwards compatible with EXT3.

[sofasurfer]

Please clarify your meaning..."EXT4 is not backwards compatible with EXT3".

[smartboyathome]

Please clarify your meaning..."EXT4 is not backwards compatible with EXT3".

As in, EXT4 cannot be mounted as EXT3, and thus Intrepid won't be able to mount it unless you install the newer kernel and e2fsprogs from Jaunty.