Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
ReiserFS vs Reiser4 [QUESTION]
View unanswered posts
View posts from last 24 hours

Goto page 1, 2  Next  
This topic is locked: you cannot edit posts or make replies.    Gentoo Forums Forum Index Other Things Gentoo
View previous topic :: View next topic  
Author Message
MetalWarrior
Guru
Guru


Joined: 07 Nov 2004
Posts: 347
Location: Malè (Trento), Italy

PostPosted: Wed Sep 28, 2005 3:55 pm    Post subject: ReiserFS vs Reiser4 [QUESTION] Reply with quote

Hi,
can someone tell me what is the difference between ReiserFS and Reiser4? Can I use both of them under Gentoo? Excuse me if it is a stupid question, but I'm going to do a new Gentoo installation and I wanted to try reiserfs but I didn't know that there were two Reiser* File Systems.. Opinions about them?
_________________
(Our) system as a whole is more or less the GNU system, with Linux added.
When you're talking about this combination, please call it ``GNU/Linux''. ~ Richard Stallman
http://www.gnu.org/gnu/why-gnu-linux.html
Back to top
View user's profile Send private message
expat_iain
Guru
Guru


Joined: 09 Jan 2004
Posts: 361
Location: Malta GC

PostPosted: Wed Sep 28, 2005 6:02 pm    Post subject: Reply with quote

Reiser4 is the latest filesystem from Hans Reiser. As this is still a young filesystem, you're better off using either reiserfs, ext3, xfs or jfs.

Regs.

Iain.
Back to top
View user's profile Send private message
JoKo
Tux's lil' helper
Tux's lil' helper


Joined: 16 May 2004
Posts: 141
Location: Xanthi, Greece

PostPosted: Wed Sep 28, 2005 7:57 pm    Post subject: Reply with quote

Reiser4 is indeed young and is not considered to be stable, but apart from that you are free to use whichever filesystem for your partitions. For instance, you could try out reiser4 on your home partition...
Back to top
View user's profile Send private message
Moartel
Tux's lil' helper
Tux's lil' helper


Joined: 18 Dec 2004
Posts: 127
Location: Regensburg, Germany

PostPosted: Thu Sep 29, 2005 10:45 am    Post subject: Reply with quote

JoKo wrote:
Reiser4 is indeed young and is not considered to be stable, but apart from that you are free to use whichever filesystem for your partitions. For instance, you could try out reiser4 on your home partition...


Reiser4 on home partition is some kind of russian roulette for me. I can reinstall my system, but I can't rewrite my docs as easy if something fails. The only thing where I would use reiser4 is /usr/portage - if something breaks you just format the partition and do emerge --sync.
_________________
When the Bogeyman goes to sleep, he looks in the toilet for Chuck Norris!
Back to top
View user's profile Send private message
MetalWarrior
Guru
Guru


Joined: 07 Nov 2004
Posts: 347
Location: Malè (Trento), Italy

PostPosted: Thu Sep 29, 2005 12:18 pm    Post subject: Reply with quote

Thank you for your answers.. Btw, is Reiser4 more performant than ReiserFS?
_________________
(Our) system as a whole is more or less the GNU system, with Linux added.
When you're talking about this combination, please call it ``GNU/Linux''. ~ Richard Stallman
http://www.gnu.org/gnu/why-gnu-linux.html
Back to top
View user's profile Send private message
chrbecke
Guru
Guru


Joined: 12 Jul 2004
Posts: 598
Location: Berlin - Germany

PostPosted: Thu Sep 29, 2005 12:36 pm    Post subject: Reply with quote

http://www.namesys.com/ section "Benchmarks".
Back to top
View user's profile Send private message
Sangeki
Apprentice
Apprentice


Joined: 23 Apr 2005
Posts: 186

PostPosted: Thu Sep 29, 2005 3:01 pm    Post subject: Reply with quote

It's maybe more perfomant then ReiserFS but only until you lose all your data and you have to reinstall.

I didn't try Reiser4 lately (will do.... some day) but it has eaten my data twice.
I hope it's more stable now and will continue to be even more in the future.
Back to top
View user's profile Send private message
yngwin
Developer
Developer


Joined: 19 Dec 2002
Posts: 4394
Location: Suzhou, China

PostPosted: Fri Sep 30, 2005 1:41 am    Post subject: Reply with quote

Since it reached version 1.0.0, Reiser4 has never failed on me. And I use it for practically my whole (x86) system. So experiences seem to vary. Note that Reiser4 is not officially supported by Gentoo, and the Gentoo devs rather discourage you to use it. But it does offer a noticeable speed-up.
_________________
"Those who deny freedom to others deserve it not for themselves." - Abraham Lincoln
Free Culture | Defective by Design | EFF
Back to top
View user's profile Send private message
GaMMa
l33t
l33t


Joined: 23 Aug 2002
Posts: 684
Location: USA

PostPosted: Mon Oct 03, 2005 4:05 am    Post subject: Reply with quote

Yea there is a speedup for this, and I think it's a lot better of a choice for laptops because for me personally it doesn't write to the disc every second like ext2/3 appeared to do. It's fast and stable for me and haven't had any compatiblity issues using it compared to other filesystems. I've never lost any data that was WRITTEN to the drive because of it; where ext3 files in use sometimes corrupt when manually shutting the system down. I've been using reiser4 for about a year and a half by the way.
_________________
Ubuntu Linux Dapper Drake running Gnome-2.14.1
[Website | Screenshot | Portage Guide]
Back to top
View user's profile Send private message
Moartel
Tux's lil' helper
Tux's lil' helper


Joined: 18 Dec 2004
Posts: 127
Location: Regensburg, Germany

PostPosted: Mon Oct 03, 2005 9:50 am    Post subject: Reply with quote

reiser4 for laptops:
reiser4 uses CPU very extensively and needs more battery-power than any other filesystem. So if you need a long runtime of your notebook with battery reiser4 isn't a really good alternative. Somebody recommended JFS for this purpose, but I can't think of one positive comment on JFS in this forum (pretty unstable), so I wouldn't try this.
_________________
When the Bogeyman goes to sleep, he looks in the toilet for Chuck Norris!
Back to top
View user's profile Send private message
aminalshmu
Tux's lil' helper
Tux's lil' helper


Joined: 13 Sep 2004
Posts: 78
Location: Tallahassee, Florida, USA

PostPosted: Tue Oct 04, 2005 1:28 am    Post subject: Reply with quote

i've been using reiser4 exclusively for about a year now, and now i'm in the process of getting rid of it. i did have a nasty corruption and complete data loss after using it for a few months, but i think most of those problems have been worked out, and it's worked flawlessly enough for me for ~8 months. however, in my mind the performance gains are minimal, if any, over using a much more tried and true filesystem which uses much less CPU. also, i think it has become pretty fragmented with use, because of the way it packs data so tightly - and there is no repacker available yet to fix performance issues with aging filesystems. maybe in a year or two (or more...) after reiser4 is included in the mainstream kernel and is known to be rock-solid, and the plugin architecture begins to be used for some interesting projects... maybe it will be more worthwhile. but right now as the kernel developers (and gentoo devs at that) are not officially supporting it... it's really not worth the time.

it's time for me to switch to good old ext3... you really can't go wrong.
Back to top
View user's profile Send private message
MetalWarrior
Guru
Guru


Joined: 07 Nov 2004
Posts: 347
Location: Malè (Trento), Italy

PostPosted: Tue Oct 04, 2005 10:48 am    Post subject: Reply with quote

aminalshmu wrote:
it's time for me to switch to good old ext3... you really can't go wrong.


Why not reiserfs?
_________________
(Our) system as a whole is more or less the GNU system, with Linux added.
When you're talking about this combination, please call it ``GNU/Linux''. ~ Richard Stallman
http://www.gnu.org/gnu/why-gnu-linux.html
Back to top
View user's profile Send private message
flatelin
n00b
n00b


Joined: 27 Aug 2004
Posts: 60

PostPosted: Tue Oct 04, 2005 1:00 pm    Post subject: why I use reiserfs for /usr/portage Reply with quote

I have migrated /usr/portage from ext3 to reiserfs for one very simple reason: disk space.
ext3 allocates a minimum of 4k to each file, even if it's much smaller than that. reiserfs also uses 4k
blocks, but will pack many smaller files (and tails of larger files) into the same 4k block.

The portage tree contains lots and lots of small files. By switching /usr/portage from ext3 to
reiserfs, the portage tree shrunk by over 100M for me.

On some machines, I use reiserfs for all partitions (except /boot, where I use ext2) and have
never had problems. I have not tried reiser4 anywhere and probably won't until it's included
in vanilla-sources (mostly because I'm lazy and don't have any real need to change from
reiserfs).
Back to top
View user's profile Send private message
volospin
Apprentice
Apprentice


Joined: 06 Aug 2002
Posts: 156
Location: Hong Kong

PostPosted: Fri Oct 07, 2005 3:04 am    Post subject: Reply with quote

ever since my first Gentoo installation...
I only use ext3 for /boot partition

I use reiserfs for all of the rest.

recently I encounter a limit of ext3 that reiserfs doesn't have.

ext3 has limit of 32000 files or directories which reiserfs doesn't have.

Still glad to have chosen reiserfs since it didn't fail me.
_________________
PIII-S 1.4G / 512MB / TUSL2-M / 3C920 x 2 / Seagate Barracuda IV 40GB
Back to top
View user's profile Send private message
UncleOwen
Veteran
Veteran


Joined: 27 Feb 2003
Posts: 1493
Location: Germany, Hamburg

PostPosted: Fri Oct 07, 2005 7:27 am    Post subject: Reply with quote

volospin wrote:
ext3 has limit of 32000 files or directories which reiserfs doesn't have.


There is no such thing with ext3.
Back to top
View user's profile Send private message
ocbMaurice
Tux's lil' helper
Tux's lil' helper


Joined: 14 Feb 2003
Posts: 82
Location: Switzerland

PostPosted: Sun Oct 09, 2005 5:49 am    Post subject: Reply with quote

UncleOwen wrote:
volospin wrote:
ext3 has limit of 32000 files or directories which reiserfs doesn't have.


There is no such thing with ext3.


Well, if I'm not wrong at all, ext2/3 does have a restriction on inodes (and therefore of possible files/directories). So he probaply went out of free inodes (see with df -i). You can specify a bytes-per-inode ratio for ext2/3 filesystems (see man page of mkfs.ext2/3). If you have another free partition you may can move all your data there and then re-create the filesystem with a smaller ratio. ReiserFS does not seem to have this limitation.
Back to top
View user's profile Send private message
Suicidal
l33t
l33t


Joined: 30 Jul 2003
Posts: 940
Location: /dev/null

PostPosted: Sun Oct 09, 2005 8:14 am    Post subject: Reply with quote

MetalWarrior wrote:
aminalshmu wrote:
it's time for me to switch to good old ext3... you really can't go wrong.


Why not reiserfs?


I have used reiserfs for 3 years with no problems
Back to top
View user's profile Send private message
MetalWarrior
Guru
Guru


Joined: 07 Nov 2004
Posts: 347
Location: Malè (Trento), Italy

PostPosted: Sun Oct 09, 2005 8:46 am    Post subject: Reply with quote

I think I will use Reiserfs.. Now the only thing I need is my new laptop, hoping I will get it one day or another (Hitachi continuously delayes the release of its new 7k100 SATA hard disks.. :cry: )...
_________________
(Our) system as a whole is more or less the GNU system, with Linux added.
When you're talking about this combination, please call it ``GNU/Linux''. ~ Richard Stallman
http://www.gnu.org/gnu/why-gnu-linux.html
Back to top
View user's profile Send private message
dE_logics
Advocate
Advocate


Joined: 02 Jan 2009
Posts: 2176
Location: $TERM

PostPosted: Wed Sep 16, 2009 5:10 pm    Post subject: Reply with quote

Update -- The developer of ReiserFS and Reiser4 fs is convicted of murder and now in prison.

So we really do not know what will happen to the FS.
Back to top
View user's profile Send private message
kernelOfTruth
Watchman
Watchman


Joined: 20 Dec 2005
Posts: 5720
Location: Vienna, Austria; Germany; hello world :)

PostPosted: Wed Sep 16, 2009 6:20 pm    Post subject: Reply with quote

dE_logics wrote:
Update -- The developer of ReiserFS and Reiser4 fs is convicted of murder and now in prison.

So we really do not know what will happen to the FS.


so what ?

why are lots of people as small-minded (no offense) as to equal a creater of {insert any item of "liking"} is a murderer == exitus letalis / "let's move it to /dev/null" ?

if the product(s) are good working why not keep on using them and improving them ?

or do you advocate banning all intellectual property and similarities to those product(s) and re-invent the wheel over and over again ?


reiserfs on /home and several backup-partitions

reiser4 with ccreg (gzip-compression) on /usr/portage, /


reiserfs-, reiser4-users are NOT murderers :!:

so feel free to use those filesystems
_________________
https://github.com/kernelOfTruth/ZFS-for-SystemRescueCD/tree/ZFS-for-SysRescCD-4.3.0-r2
2.6.37.2_plus_v1: BFS, CFS,THP,compaction, zcache or TOI
Hardcore Linux user since 2004 :D
Back to top
View user's profile Send private message
tel
Tux's lil' helper
Tux's lil' helper


Joined: 15 Aug 2006
Posts: 111

PostPosted: Wed Sep 16, 2009 8:11 pm    Post subject: Reply with quote

Yep, I agree.

Reiser4 system-wide (except /boot) for more than a year with nary a problem.
Back to top
View user's profile Send private message
jel
Apprentice
Apprentice


Joined: 10 Aug 2005
Posts: 259
Location: Gothenburg

PostPosted: Wed Sep 16, 2009 10:44 pm    Post subject: Reply with quote

http://en.wikipedia.org/wiki/Guilt_by_association
http://en.wikipedia.org/wiki/Fear,_uncertainty_and_doubt


(And this is from an ext4 advocate! I switched back to ext3 well before the murder and then I jumped the ext4 bandwagon while the FS was still in testing. Couldn't stand the Reiser mount times.)

_________________
# dd if=/dev/urandom of=/dev/sda bs=512
Back to top
View user's profile Send private message
kernelOfTruth
Watchman
Watchman


Joined: 20 Dec 2005
Posts: 5720
Location: Vienna, Austria; Germany; hello world :)

PostPosted: Wed Sep 16, 2009 10:52 pm    Post subject: Reply with quote

jel wrote:
http://en.wikipedia.org/wiki/Guilt_by_association
http://en.wikipedia.org/wiki/Fear,_uncertainty_and_doubt


(And this is from an ext4 advocate! I switched back to ext3 well before the murder and then I jumped the ext4 bandwagon while the FS was still in testing. Couldn't stand the Reiser mount times.)


you're right pure FUD (interesting read thanks for the link to Guilt_by_association !) :wink:

it's really sad that people are associating stuff (I DO know that I'm doing it too but I try to consciously avoid it where I can)

you could reduce the (very long) mount times of reiser4 to a minimum by mounting it via mount-option: dont_load_bitmap
_________________
https://github.com/kernelOfTruth/ZFS-for-SystemRescueCD/tree/ZFS-for-SysRescCD-4.3.0-r2
2.6.37.2_plus_v1: BFS, CFS,THP,compaction, zcache or TOI
Hardcore Linux user since 2004 :D
Back to top
View user's profile Send private message
1clue
Veteran
Veteran


Joined: 05 Feb 2006
Posts: 1399

PostPosted: Wed Sep 16, 2009 10:56 pm    Post subject: Reply with quote

What about large files (over 2g) and growing the filesystems?

I want to set up an lvm type of system next, where I can grow the filesystem. I used this on an RS6000 about 10 years ago, haven't done anything like it since.

I'm after a bunch of fixed-size physical volumes, and a growable logical volume.

That, and being able to have large files. Having good storage of small files also would be great.
Back to top
View user's profile Send private message
jel
Apprentice
Apprentice


Joined: 10 Aug 2005
Posts: 259
Location: Gothenburg

PostPosted: Wed Sep 16, 2009 11:14 pm    Post subject: Reply with quote

kernelOfTruth wrote:

you could reduce the (very long) mount times of reiser4 to a minimum by mounting it via mount-option: dont_load_bitmap


At the risk of hijacking the thread: cool! I never ventured as far as reiser4. Perhaps I should set up a test partition to play with...
_________________
# dd if=/dev/urandom of=/dev/sda bs=512
Back to top
View user's profile Send private message
Display posts from previous:   
This topic is locked: you cannot edit posts or make replies.    Gentoo Forums Forum Index Other Things Gentoo All times are GMT
Goto page 1, 2  Next
Page 1 of 2

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum