Re: v3 logging speedups for 2.6

[Chris Mason <mason@suse.com>]

On Thu, 2003-12-11 at 13:30, Dieter Nützel wrote:
> Am Donnerstag, 11. Dezember 2003 19:10 schrieb Chris Mason:
> > Hello everyone,
> >
> > This is part one of the data logging port to 2.6, it includes all the
> > cleanups and journal performance fixes.  Basically, it's everything
> > except the data=journal and data=ordered changes.
> >
> > The 2.6 merge has a few new things as well, I've changed things around
> > so that metadata and log blocks will go onto the system dirty lists.
> > This should make it easier to improve log performance, since most of the
> > work will be done outside the journal locks.
> >
> > The code works for me, but should be considered highly experimental.  In
> > general, it is significantly faster than vanilla 2.6.0-test11, I've done
> > tests with dbench, iozone, synctest and a few others.  streaming writes
> > didn't see much improvement (they were already at disk speeds), but most
> > other tests did.
> >
> > Anyway, for the truly daring among you:
> >
> > ftp.suse.com/pub/people/mason/patches/data-logging/experimental/2.6.0-test11
> >
> > The more bug reports I get now, the faster I'll be able to stabilize
> > things.  Get the latest reiserfsck and check your disks after each use.
> 
> Chris,
> 
> with which kernel should I start on my SuSE 9.0?
> A special SuSE 2.6.0-test11 + data logging?
> Or plane native? --- There are such much patches in SuSE kernels...

For the moment you can only try it on vanilla 2.6.0-test11.   The suse
2.6 rpms have acls/xattrs and the new logging stuff won't apply.

Jeff and I will fix that when the logging merge is really complete.  At
the rate I'm going, that should be by the end of next week, this part of
the merge was the really tricky bits.

-chris