Arch Linux

Neo_The_User

Member

From: The Matrix

Registered: 2009-03-30

Posts: 96

Website

Completely remove journal on ext4?

I would like to completely remove the journal from ext4. Not move it somewhere else, not temporarily disabled it, I want it 100% gone with the  ext4 file system. I have searched like crazy and found nothing and I read man pages of e2fsck, mke2fs, and others but I can't find a way to REMOVE the journal OFF the ext4 filesystem, that way I get a slight performance boost.

OR....

If somebody could inform me if the ext2 filesystem is generally quicker than the ext4 file system. That way I can just use ext2 instead of ext4 meaning I wouldn't have to remove the journal since ext2 doesn't have a journal.

I noticed a very slight performance boost by doing my own guide: http://neo-technical.wikispaces.com/fedora-journal but nothing special.

Any help would be greatly appreciated and I will give you cookies!

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AMD Phenom II X4 955 with Optimized Kernel
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Wintervenom

Member

Registered: 2008-08-20

Posts: 1,011

Re: Completely remove journal on ext4?

I do not believe you can yet remove the journal in an Ext4 file system.

ngoonee

Forum Fellow

From: Between Thailand and Singapore

Registered: 2009-03-17

Posts: 7,358

Re: Completely remove journal on ext4?

/me wonders why you'd use ext4 if you don't want a journal? If you're dead set against using a journal ext2 or some other FS should be your choice, I believe.

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Neo_The_User

Member

From: The Matrix

Registered: 2009-03-30

Posts: 96

Website

Re: Completely remove journal on ext4?

I'm all about speed and the Journal has the biggest impact (besides the hard drive itself) so yeah...

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AMD Phenom II X4 955 with Optimized Kernel
5 GB DDR2 RAM
320 GB SATA Hard Drive + 160 GB SATA Hard Drive
ATi RadeonHD 5830 GIGABYTE

rsambuca

Member

From: Calgary, Canada

Registered: 2008-07-21

Posts: 143

Re: Completely remove journal on ext4?

The reports have been that ext4 without a journal is faster (and if I recall, significantly faster) than ext3 during the first tests by one of the developers.  I still don't know exactly what you need to put in your fstab to disable the journal though.  You might want to look into the data-writeback feature to disable it.

fumbles

Member

Registered: 2006-12-22

Posts: 246

Re: Completely remove journal on ext4?

mkfs -t ext4 -v /dev/sdXY -O ^has_journal,extent

Tried this?

Last edited by fumbles (2009-07-13 11:12:50)

SpeedVin

Member

From: Poland

Registered: 2009-04-29

Posts: 955

Re: Completely remove journal on ext4?

I would like to completely remove the journal from ext4. Not move it somewhere else, not temporarily disabled it, I want it 100% gone with the  ext4 file system. I have searched like crazy and found nothing and I read man pages of e2fsck, mke2fs, and others but I can't find a way to REMOVE the journal OFF the ext4 filesystem, that way I get a slight performance boost.

OR....

If somebody could inform me if the ext2 filesystem is generally quicker than the ext4 file system. That way I can just use ext2 instead of ext4 meaning I wouldn't have to remove the journal since ext2 doesn't have a journal.

I noticed a very slight performance boost by doing my own guide: http://neo-technical.wikispaces.com/fedora-journal but nothing special.

Any help would be greatly appreciated and I will give you cookies!

Hello I have question about this article I use the data=writeback parameter , but I don't tunefs my filesystem that will gain some speed?
And i will don't lost my data from my root partition?
Edit
I run this command from article and I see only:
tune2fs 1.41.8 (11-July-2009)
That's stange thank you for help

Last edited by SpeedVin (2009-07-14 15:44:43)

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Neo_The_User

Member

From: The Matrix

Registered: 2009-03-30

Posts: 96

Website

Re: Completely remove journal on ext4?

@SpeedVin, you did it right. It's not supposed to say anything. Thanks for following my guide!

edit: @fumbles: i already have the partition made. can i remove it on the fly?

Last edited by Neo_The_User (2009-07-16 03:54:41)

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AMD Phenom II X4 955 with Optimized Kernel
5 GB DDR2 RAM
320 GB SATA Hard Drive + 160 GB SATA Hard Drive
ATi RadeonHD 5830 GIGABYTE

SpeedVin

Member

From: Poland

Registered: 2009-04-29

Posts: 955

Re: Completely remove journal on ext4?

@SpeedVin Thanks for following my guide!

I have to thank you for tht guide

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Shell Scripter | C/C++/Python/Java Coder | ZSH