Re: journal size reiserfs vs reiser4

2005-09-02 Thread Vladimir V. Saveliev
Hello michael chang wrote: On 9/1/05, Peter Staubach [EMAIL PROTECTED] wrote: Hans Reiser wrote: Research for filesystems generally says that as you get more than 85% full the performance goes down, by a lot as you get close to 100%. 5% is probably too little rather than too much. Wow. What

Re: journal size reiserfs vs reiser4

2005-09-02 Thread Hans Reiser
Vladimir V. Saveliev wrote: Hello michael chang wrote: On 9/1/05, Peter Staubach [EMAIL PROTECTED] wrote: Hans Reiser wrote: Research for filesystems generally says that as you get more than 85% full the performance goes down, by a lot as you get close to 100%. 5% is probably

Re: journal size reiserfs vs reiser4

2005-09-02 Thread PFC
It could probably be a lot less than 5%, 2% is more than enough I would guess, but we also need to reserve space to get good performance. I'm more than happy to lose 3 GB on my 60 gb / 5400 rpm crap laptop drive and have reiser4 transform it into something that feels more like a big

Re: File as a directory - back to predicates

2005-09-02 Thread Hans Reiser
Leo, did you see my paper on the website, that the future vision button takes you to? I think it addresses topics relevant to your email. Best, Hans

BUG in reiserfs4 using SuSE-kernel

2005-09-02 Thread Sebastian Held
Hi, The following message appeared in the kernel ring buffer after turning off my external hard disk connected by usb2 (note: I forget to umount it, but should reiserfs abort this way?) SuSE kernel version: (uname -a) Linux laptop 2.6.11.4-21.9-default #1 Fri Aug 19 11:58:59 UTC 2005 i686

Re: BUG in reiserfs4 using SuSE-kernel

2005-09-02 Thread Vladimir V. Saveliev
Hello Sebastian Held wrote: Hi, The following message appeared in the kernel ring buffer after turning off my external hard disk connected by usb2 (note: I forget to umount it, but should reiserfs abort this way?) well, it should not. Can you try to mount with the following option: -o

Re: Executability problem

2005-09-02 Thread michael chang
On 9/2/05, Kris Van Bruwaene [EMAIL PROTECTED] wrote: michael chang wrote: On 9/1/05, Kris Van Bruwaene [EMAIL PROTECTED] wrote: michael chang [EMAIL PROTECTED] schreef: mount -o remount,exec /home Bingo: [EMAIL PROTECTED]:/home/kris# mount -o remount,exec /home [EMAIL

Re: BUG in reiserfs4 using SuSE-kernel

2005-09-02 Thread michael chang
On 9/2/05, Sebastian Held [EMAIL PROTECTED] wrote: The following message appeared in the kernel ring buffer after turning off my external hard disk connected by usb2 (note: I forget to umount it, but should reiserfs abort this way?) Maybe it's something with lazy-alloc or something? Just a

Re: File as a directory - back to predicates

2005-09-02 Thread michael chang
On 9/2/05, Hubert Chan [EMAIL PROTECTED] wrote: On Sun, 28 Aug 2005 16:33:37 +0100, Leo Comerford [EMAIL PROTECTED] said: On 8/25/05, Hubert Chan [EMAIL PROTECTED] wrote: On Wed, 24 Aug 2005 07:51:19 +0100, Leo Comerford [EMAIL PROTECTED] said: It's not so easy. You need to determine

Re: journal size reiserfs vs reiser4

2005-09-02 Thread Łukasz Mierzwa
Dnia Fri, 02 Sep 2005 09:19:55 +0200, Hans Reiser [EMAIL PROTECTED] napisał: It could probably be a lot less than 5%, 2% is more than enough I would guess, but we also need to reserve space to get good performance. Maybe You can make it an mkfs.reiser4 option, set 5% to default so it won't

Re: journal size reiserfs vs reiser4

2005-09-02 Thread Gregory Maxwell
On 9/2/05, Łukasz Mierzwa [EMAIL PROTECTED] wrote: Dnia Fri, 02 Sep 2005 09:19:55 +0200, Hans Reiser [EMAIL PROTECTED] napisał: It could probably be a lot less than 5%, 2% is more than enough I would guess, but we also need to reserve space to get good performance. Maybe You can make it an

Re: Incite into reiser5?

2005-09-02 Thread Lares Moreau
I'm looking into it because I am looking into doing a masters focusing on distributed file systems. There was a mention of reiser5 being distributed. I'm intruiged by the plugin system of reiser4, and I am looking into generating a distributed plugin. You never know. On Thu, 2005-09-01 at

Re: Incite into reiser5?

2005-09-02 Thread David Masover
Lares Moreau wrote: I'm looking into it because I am looking into doing a masters focusing on distributed file systems. There was a mention of reiser5 being distributed. I think that's the definition of reiser5. I think that 4, 5, and 6 (at least, maybe there's a 7?) are defined not in terms

Re: Incite into reiser5?

2005-09-02 Thread Hubert Chan
On Fri, 02 Sep 2005 13:34:14 -0500, David Masover [EMAIL PROTECTED] said: Lares Moreau wrote: I'm looking into it because I am looking into doing a masters focusing on distributed file systems. There was a mention of reiser5 being distributed. I'm intruiged by the plugin system of reiser4,

Re: Incite into reiser5?

2005-09-02 Thread David Masover
Hubert Chan wrote: On Fri, 02 Sep 2005 13:34:14 -0500, David Masover [EMAIL PROTECTED] said: Lares Moreau wrote: I'm looking into it because I am looking into doing a masters focusing on distributed file systems. There was a mention of reiser5 being distributed. I'm intruiged by the plugin

Re: Incite into reiser5?

2005-09-02 Thread Lexington Luthor
David Masover wrote: It has one. It's called Lustre. What Linux needs is good, distributed filesystem that runs on the 2.6 kernel, without users having to pay licensing fees. Lustre is expensive, but the -mm kernel now has ocfs (or is it ocfs2?) as well as gfs. What is wrong with

Re: journal size reiserfs vs reiser4

2005-09-02 Thread Matt Stegman
Just to add another voice to the cachophony, I would like to be able to select the amount. At any time, not just at mkfs time. For example, ext2's reserved blocks are set by default to 5%, but I can use tune2fs to change that to 33% or 0% or whatever makes me happy. The point is that sometimes

Re: Incite into reiser5?

2005-09-02 Thread David Masover
Lexington Luthor wrote: David Masover wrote: It has one. It's called Lustre. What Linux needs is good, distributed filesystem that runs on the 2.6 kernel, without users having to pay licensing fees. Lustre is expensive, but the -mm kernel now has ocfs (or is it ocfs2?) as well as gfs.

Re: Incite into reiser5?

2005-09-02 Thread Lexington Luthor
David Masover wrote: Don't know about ocfs, I'll look it up later. But, AFAIK, GFS is for things like ATA-over-ethernet, where you have multiple machines attached to the same hard drive -- not for situations where multiple machines each have their own drive, and you want them to appear as one

Re: Incite into reiser5?

2005-09-02 Thread Lares Moreau
On Fri, 2005-09-02 at 14:42 -0500, David Masover wrote: Hubert Chan wrote: On Fri, 02 Sep 2005 13:34:14 -0500, David Masover [EMAIL PROTECTED] said: Lares Moreau wrote: I'm looking into it because I am looking into doing a masters focusing on distributed file systems. There was a

Re: try it out - Pharmåceutical

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Re: Incite into reiser5?

2005-09-02 Thread David Masover
Lexington Luthor wrote: David Masover wrote: Don't know about ocfs, I'll look it up later. But, AFAIK, GFS is for things like ATA-over-ethernet, where you have multiple machines attached to the same hard drive -- not for situations where multiple machines each have their own drive, and you