[ale] [Robert.L.Harris at rdlg.net: Reiser vs EXT3]

Michael D. Hirsch mhirsch at nubridges.com
Fri Nov 1 10:18:23 EST 2002


On Thursday 31 October 2002 01:24 pm, Charles Shapiro wrote:

> We've been using ext3 here at the office for some time, and we've
> noticed no speed degradation compared to ext2.
>
> I can't speak to reiserfs since we don't use it here. But even mr.
> Reiser admits that Weird Things can happen to reiserfs if your
> machines crash -- e.g. the crash can mung files which were closed
> hours before. Scary stuff, to me. My notes have more detail on this.
> Also, performance of all of these file systems varies dramatically
> with workload and hardware. As I understand it, reiserfs is a lot
> better with lots of small files, but as average file size rises its
> performance comes closer to ext2. Again, check my notes for details
> -- it's discussed at about slide 15.

I agree with Charle's assessment.  Rieserfs is optimized for lots of 
small files.  I've had good success with both.  ext3 is a good general 
pupose fs.

For large files xfs from SGI is supposed to be very good.  SGI optimized 
it for large media files like movies.

--Michael
>
> On Thu, 2002-10-31 at 12:53, Jim Popovitch wrote:
> > Hi Robert,
> >
> > I have seen similar... and have just assumed that Reiser was more
> > robust due to it's age.  It is also worth pondering whether ext3
> > has more overhead since it continuously maintains ext2
> > compatibility along the way.
> >
> > -Jim P.
> >
> > > -----Original Message-----
> > > From: Nomad the Wanderer [mailto:nomad at rdlg.net]On Behalf Of
> > > Robert L. Harris
> > > Sent: Thursday, October 31, 2002 9:54 AM
> > > To: Atlanta Linux Enthusiasts
> > > Subject: [ale] [Robert.L.Harris at rdlg.net: Reiser vs EXT3]
> > >
> > >
> > >
> > > I bounced this to the Kernel list but they may be a bit busy with
> > > the new release.  Thoughts/theories?
> > >
> > >
> > >   Still working on that replacement mail server and a new rumor
> > > has hit the mix.  It follows that reiserfs is much faster than
> > > ext3 (made ext3, not converted from ext2 if it matters) and this
> > > is causing some problems.  On a 200Gig filesystem is this truely
> > > an issue?
> > >
> > > Thanks,
> > >   Robert
> > >
> > > :wq!
> > >
> > > -----------------------------------------------------------------
> > >- ---------
> > > Robert L. Harris
> > >
> > > DISCLAIMER:
> > >       These are MY OPINIONS ALONE.  I speak for no-one else.
> > > FYI:
> > >  perl -e 'print
> > > $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);'
> > >
> > >
> > > ---
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