Hi there!
I just read the discussion about the compression-plugin and I just wanted to
say that this feature is something I really always missed under Linux when
looking to NTFS.
Its really great to see progress in this area!
When do you think reiser4.1 will be ready?
Thanks a lot, Clemens
This is also the feature I am waiting for a very long time - would be
great if a useable preview or something like this could be released.
Furthermore I hope ReiserFS will be soon integrated into the vanilla
kernel tree...
Thanks a lot for ReiserFS-4.0, its really great and very clear
designed.
Hello!
I hope this questions hasn't been asked too often (since it seems to
be a perfect example for this), but I'm not too long on this list and
for what I've seen it hasn't ... so please don't kill me ;-)
Does anybody know a number of distrbibutions which support reiser4 out
of the box
Hi,
In some version I tried a couple of months ago, Yoper had Reiser4. I don't
know if they still do though.
Thanks a lot for the tip - I already knew Yoper and was very pleased
by its princip to use the best out of all distributions (I still think
Yast is much better than all Fedora
Hi there,
I am currently tinkering a idn-router which a harddrive which should
mostly be in stand-by.
However it seems the drive is rather unimpressed by a 5s timeout
setting specified with hdparm and goes in standby very seldom although
the computer is runnig 100% idle (even no isdn-services
Hi David,
So, the simplest way is to do -a noatime, unless you really need the
atime updates. It'll boost your performance, too...
Wow! To be honest I was a bit skeptic wether would work but like magic
... the drive goes into standby and wakes only up if something really
needs disk access or
Hi Christian,
Are you sure? Common knowledge (empiric and anecdotal evidence) says that a
spin-up/spin-down cycle costs significantly more lifetime than running the
drive for the same amount of time. You really have to have extremely few
spin-ups for this to have any positive effect, IMHO.
Well, it sounds a bit like a microsoft manager explaining why XP-Home
has no terminal server features ;-)
I think an mkfs-option would be best, with a warning if the value
given by the user is nonsence (3-8% ok?).
On the contrary a 500GB hard drive with normal files on it would not
benefit too
The longer I read discussions about the inclusion of reiser4 into the
kernel the more I think the whole discussion has to do with personal
oppinions, not with technical problems or limitations that should be
adressed.
Anybody who is a ext3 fan seems to find his own reasons why reaiser4
should stay
Hello again,
I am currently re-installing my linux system and I would like to use
reiser4 since I think its really powerful and great (and is well
written too ;) ).
However, will it be possible to convert a non-compressed reiser4
partition to a compressed one withought the need of deleting data
So yes, hmm sad that there is not compress-option - it could be easily
doable with the files in the pseudo directory of every single file.
This way one could select which files to compress and which not -
however thats not that important for me. I am just happy that there is
at least one serious
Please? Or would I have been better off using XFS from the beginning?
Maybe this wouldn't be such a bad idea - since it would avoid such
unfriendly posts to the mailing list. Since YOU WANT help, you should
behave like its ment to be not always throughing arround how stupid
this and that is.
This is because reiser uses 5% of disk space for internal use - which
is no problem since reiser saves that 5% easily since it stores files
much more efficient.
lg Clemens
2005/9/30, luc [EMAIL PROTECTED]:
Hi,
i want to try use reiser4 and i discover this :
I have 80Gb Western
Hi again,
Sorry for creating traffic, however I am just curious whats happening
with the mainline kernel includion. Any new wishes, or new steps done?
Thank you in advance, lg Clemens
Hi again,
Wow does that mean cryptocompress is almost ready for primetime (next
months or so)?!
I've been waiting for something like this for ages, it would be so
great if that could turn into reality soon.
I am quite enthusiastic how it will perform on the Dual-Athlon64 + 4x
Software-Raid-5
I suggest that they sit in -mm or an rc for ~2 weeks before they go in.
If 2.6.16 is coming out before then, then let it ship without them. All
of these things are pretty obscure/rare, so not unsettling the code
matters more than getting them in.
I know this sounds quite a bit stupid but
I've been watching the work of Hans and co. with great interest for several
years. The performance and design of Reiser4 is very impressive. But for
me, improved performance is not enough compensation for the pain of
switching to a non-standard filesystem.
I would like to add me too, but
Hi again,
This depends on how long we remain distracted by Hellwig and company more
than by how long they take to complete.
*Please* don't do this ;)
I know its your god given right and I also think the same way but I
would also like to see reiser4 in mainline anytime soon :-)
Thanks for
I had this problem too with older SuSE versions (7.? - 8.?), its a
shame that nobody found this bug for such a long time.
I too saw the same behaviour you described, but for me it has always
helped to just re-install grub. Boot up with a rescue-cd and simply
re-install grub or use yast to do so.
Hi again,
I think your characterization of plugins as something we impose on the
VFS is unfair. Plugins exist entirely internally to reiser4 --- we
to be honest I hope the force from kernel developers will not take
away any more abilities and features away from reiserfs!
If reiser4 is tied
But speaking of single threadedness, more and more desktops are shipping
with ridiculously more power than people need. Even a gamer really
Will the LZO compression code in reiser4 be able to use multi-processor systems?
E.g. if I've a Turion-X2 in my laptop will it use 2 threads for
Hi Edward,
Thanks a lot for answering.
Compression is going in flush time and there can be more then
one flush thread that processes the same transaction atom.
Decompression is going in the context of readpage/readpages.
So if you mean per file, then yes for compression and no for
Hello,
Will reiser-4.0 or reiser-4.1 be merged into mainline kernel, I ask
because I am quite interrested in trying out the compression plugin.
Sorry about what happend in the last few days :-/
lg Clemens
Hi again and thanks for the response,
Will reiser-4.0 or reiser-4.1 be merged into mainline kernel, I ask
I don't know, why it should be merged partially.
I.e. all or nothing.
I thought that compression belongs exclusivly to reiser4-4.1, and
maybe because of stability issues only reiser4-4.0
Hi,
If you want to try out in the latest -mm kernel,
then we will send you the setup.
I'll setup my laptop within the next days and will compile the latest
-mm kernel.
Could you send me the setup, please? (Do you mean the kernel-setup,
or a howto?)
Thanks a lot in advance, lg Clemens
Btw. a
Hello,
ok, a bit later
No need to hurry ;)
both compressed and decompressed data are cached, it means that
cryptcompress file requires *(2-R) more memory then usual file
(R - compression ratio)
Oh ... thats a drawback. It means the performance advantage
compression will do will be
Hi again,
How much RAM?
512mb, DDR1 PC2700
Thanks, but the status of this account seems to be unclear
Ok, then I'll wait till there are other ways to donate.
Thanks a lot, Clemens
Hello again,
Thanks a lot for all the help, well ... I now use reiser4 as root-partition :-)
Everything works ok and I haven't seen any crashes or compatibility
problems, simply wonderful :-). If something bad happens I'll let you
know ;)
However performance is so-and-so, the system was faster
Hi Christian,
Now that I found the tiny kernel patches and reiser4progs-1.0.6, I
wonder whether I need libaal of the same version, and if yes, where to
find _that_...
1.0.5 is just fine :-)
lg Clemens
Hi again,
I think the slow performance you're experiencing are caused by the fsync()
call not being well-optimized in reiser4. I've commented out the function in
fs/buffer.c, and I'm having much better performance on my / partition.
I don't think this can be advocated as a real solution to
Hi again,
Don't know what its worth:
I disabled readahead completly and now KDE starts almost as fast as on EXT3.
lg Clemens
because of the reduced space available for
caching in RAM, because compressed and uncompressed data is cached.
lg Clemens
2006/11/9, Clemens Eisserer [EMAIL PROTECTED]:
Hi again,
Don't know what its worth:
I disabled readahead completly and now KDE starts almost as fast as on EXT3.
lg Clemens
Hi there,
First of all this discussion is about ... well isn't it of topic here at all?
journaling support has been late on Linux. Everything seems to be late
on Linux. Real-time support, preemptive support...
Yes Linux is late on everything because things are done when there is
_real_ demand
Only a fool argues against a fool ;)
Hello,
I know this is a strange question, but could it be that because of
reiser4 or the development I experience problems with usb-storage? I
am using cryptocompress with the 2.6.19rc4 kernel and after some time
df reports something like:
/dev/hda3 55068032 32996604 22071428 60%
Hi again,
...after some time, so right after mkfs df(1) is telling the truth?
Does it drop to 52MB all of a sudden or does it decrease slowly? does it
happen with other/former kernels too?
Well the cable was bad - it worked well on another computer but on
mine it lead to usb read failures.
It
Hi again,
Sorry but I wonder why you worry about my setup...
The kernel is also something that should arguably take up less RAM. For
one thing, it can't be swapped out...
Well I am completly happy with my kernel build - the executable is
about 1.5mb which I don't care at all. The ~0.2mb I
Hi again,
I would recommend to use on-the-fly conversion to unix-file plugin. It
will reduce
memory usage for incompressible files. You will need to reformat your
root partition.
Use mkfs.reiser4 -o create=ccreg40,compressMode=conv /dev/xxx to
enable this.
But first rebuild kernel with the
Thanks a lot for the detailed explanation.
Current conversion policy (convert to extent, if first 64K are
incompressible)
allows to properly handle ~50% of all mpegs. I hope it can be increased
up to
70-80% using only cosmetic changes. However, other problems you described
(a lot of HD seeks,
Hello again,
I just read in a german online news-site
http://forum.tecchannel.de/news/themen/linux/456733/ that Hans'
advocate Daniel Horowitz (I don't know wether this is the right word,
that one how helps hans in front of the court) stopped working for
hime because Hans was not able to pay him
At least what I can tell its both - you need a patch and some
arguments for mkfs.
Search the list, about one month ago edward explained it to me (with
link to patches and README file).
Good luck, lg Clemens
2006/12/2, Tim Heinrich [EMAIL PROTECTED]:
Hi, i have heard about the compress plugin,
Hefty. I guess I'll buy some loterry tickets/coupons. I don't make that much
to spend
Me too - I'm a student ;)
However I guess its not important how much someone pays (e.g. I am
willed to pay 20-30$), I guess if enough people donate money - it
really would help.
lg Clemens
Hi there,
Because I am using Reiser4 for / there is no way for me to check it
as far as I know - without booting from an rescue cd.
Does anybody know a rescue-cd distribution or something like that
which allows to exchange their kernel easily - so that I maybe could
cange my data even if I
Hi again,
1. make sure you have reiser4progs-1.0.6 installed
2. close all applications.
3. start single mode (init 1).
4. remount root partition to readonly.
5. run fsck.reiser4 root_device_name (if you use cryptcompress, then pass
options -n --fix for the first run).
Ooops. I did not pass
Hi again,
I thought maybe the exact error-messages could help finding the root
of the problem. By the way I thought fsck.reiser4 won't write anything
except I agree that it does?!
This are the messages I get from mount:
reiser4[mount(4030)]: try_init_format40
Hi again,
Something was wrong with the system, or you just decided to check your fs?
Well I missed some files from time to time but did not further care.
And then suddenly X11 crashed when starting an OpenGL app (I changed
nothing), but reinstalling the driver helped. So I guess, yes, the
Hi Edward,
Frankly, it is dangerous,
Well seems I had luck - all the files I would really miss (especially
the source files changed lately) are there again :-)
and it seems you didn't do any backups
as I insisted, because cryptcompress stuff is very experimental. Isn't it?
Of course I did
Hi again,
When reading some of the file on the partition that was rescued with
--build-fs, I got a stacktrace two times. I hope this helps in finding
a problem, if not ... sorry for the traffic.
The first one:
Dec 18 14:29:32 localhost kernel: WARNING: Bad disk cluster checksum
-41760589,
please take a look at http://pub.namesys.com/Reiser4/ToDo
why?
i tried rfstool unfortunately with no success, and i'm running out of
ideas, is there a way to access my r4 partition from windows?
No.
lg Clemens
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