Re: [gentoo-user] Ext4 another thread

Re: [gentoo-user] Ext4 another thread

[Dirk Heinrichs]

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Am Freitag, 30. Januar 2009 19:49:33 schrieb Harry Putnam:

> I didn't want to derail the existing thread discussing ext4 with this
> angle ... I'm guessing there may be comments that will not be helpful
> to that OP.
>
> I'm wondering what people running ext4 are seeing in practice that
> makes it better than ext3 or reiserfs? Is it safer journalling? Faster
> read/write? ...

That's indeed an interesting question. I'd say to some extend it's answered in 
[1]. However, to me it looks like just another filesystem in the classical 
sense. The one that really brings something new to the Linux filesystem world 
will be btrfs. I've already tried some older versions of it and it looks very 
promising. Volumes, RAID, data integrity, etc, all integrated into the 
filesystem, similar to Suns ZFS.

Bye...

	Dirk

[1]: http://kernelnewbies.org/Ext4



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[gentoo-user] Re: Ext4 another thread

[Harry Putnam]

Albert Hopkins <marduk@letterboxes.org> writes:

> Depending on your usage you might see significant improvements or hardly
> any at all.  Best way to know for sure is to try it out.  Note however
> that on ext4 journal checksums are *on* by default (and off on ext3
> iirc). So when you are comparing performance you should make that value
> the same for both for a fair comparison.

What about comparisons to reiserfs... any comments on that.  Far as
I've experienced it with reiserfs... it puts ext3 in the shade in most
ways. 

[gentoo-user] Re: Ext4 another thread

[Harry Putnam]

Dirk Heinrichs <dirk.heinrichs@online.de> writes:

> sense. The one that really brings something new to the Linux
> filesystem world will be btrfs. I've already tried some older
> versions of it and it looks very promising. Volumes, RAID, data
> integrity, etc, all integrated into the filesystem, similar to Suns
> ZFS.

Ahh would that be:
   Bristol Television Film Service Ltd
or the band:
  Beneath The Frozen Soil

(just kidding... hehe)

[gentoo-user] Re: Ext4 another thread

[Nikos Chantziaras]

Harry Putnam wrote:
> I didn't want to derail the existing thread discussing ext4 with this
> angle ... I'm guessing there may be comments that will not be helpful
> to that OP.
> 
> I'm wondering what people running ext4 are seeing in practice that
> makes it better than ext3 or reiserfs? Is it safer journalling? Faster
> read/write? ...

http://www.phoronix.com/scan.php?page=article&item=ext4_benchmarks&num=1

It's faster.