On Sun, 13 Nov 2005 13:29:25 +0100
Artur Makówka <[EMAIL PROTECTED]> wrote:

> Laurent Riffard wrote:
> > Le 13.11.2005 01:55, Artur Makówka a écrit :
> > [snip]
> >> one more thing im pretty sure of - the 2.6.13mm3 without any
> >> reiser4 additional patches (just clean 2.6.13mm3 as it has reiser4
> >> already built) is working fine.
> >>
> >> i mean, im not sure if this bug still exists here, but im 100%
> >> sure i can write vim files easy without any downtime, so this is
> >> big difference.
> >>
> >> so for everyone with this bug - try clean 2.6.13mm3 from
> >> kernel.org. It worked for me. i will wait with this kernel for a
> >> patch to stable line.
> >>
> >> Also - i will test it a little more tomorrow to be sure that this
> >> version is bug free.
> >>
> > 
> > Hello,
> > 
> > It seems that fsync could be really slow when there is a lot of
> > activity on the FS.
> > 
> > I've done the following test :
> > - on a reiser4 FS, unpack a fresh kernel tarball and start a
> > compilation
> > - open a new terminal, wait 1 minute and start editing a file on the
> > same FS with vi.
> > - hit ":w" and wait...
> > 
> > $ strace -T vi foo 2>strace_vi.log
> > $ grep fsync strace_vi.log
> > fsync(3)                                = 0 <30.923808>
> > $
> > 
> > My computer is a desktop with an Athlon XP 1600 and 512 Mb RAM.
> > Write cache is disabled on the disk (hdparm -W0 /dev/hda).
> > 
> > ~~
> > laurent
> > 
> 
> it crashed today morning, so 2.6.13mm is not much better than 2.6.14.
> 
> My fs is heavly used (but not overloaded) by many apache process or
> ftp process or postfix process.
> 
> I have free hosting server and i think i will have to close this
> thing becouse for over a month its often downtime everyday. Could you
> please tell us if there is any idea of how to fix it? i would move to
> another more stable fs but its too much data..

hmm, wondering which I/O scheduler you guys are using. 
I had the same slowdowns and soft lockups till 10 minutes ago, when i
switched from cfq to anticipatory I/O. I'm currently usig 2.6.15-rc1 +
reiser4 from 2.6.14-mm2
I was in the middle of a big gentoo'ish emerge, desktop almost
unusable. but now with anticipatory all seems fine so far. 
the compile seems a lot faster. no soft lockup trying to use vim or
locate... hmmm

regards
tom

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